4.7 Article

Porous pie-like nitrogen-doped biochar as a metal-free peroxymonosulfate activator for sulfamethoxazole degradation: Performance, DFT calculation and mechanism

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Chemistry, Physical

Immobilization CoOOH nanosheets on biochar for peroxymonosulfate activation: Built-in electric field mediated radical and non-radical pathways

Minghui Xiong et al.

Summary: In this study, a novel CoOOH nanosheets anchored on rape straw-derived biochar (CoOOH/BC) was synthesized and found to play a vital role in activating peroxymonosulfate (PMS) for pollutant degradation. Experimental results showed that integrating CoOOH nanosheets on the biochar surface enhanced the specific surface area, improved the catalyst stability, and achieved a high degradation efficiency of SMX. Density functional theory calculations revealed the role of the built-in electric field (BIEF) in mediating PMS activation and the generation of reactive oxygen species (ROS), leading to efficient SMX degradation.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Environmental Sciences

Peroxymonosulfate activation by nitrogen-doped herb residue biochar for the degradation of tetracycline

Xin Li et al.

Summary: In this study, nitrogen-doped biochar from herb residue was fabricated and used for peroxymonosulfate activation. The influence of nitrogen doping was explored through characterization and density-functional theory (DFT) studies. The nonradical singlet oxygen (1O2) was identified as the main reactive oxidative species, with pyridinic-N playing a pivotal role in the 1O2-dominated pathway. Three degradation pathways were proposed based on identified intermediates. Batch experiments confirmed the excellent catalytic performance and reusability of nitrogen-doped biochar. The proposed strategy provides a feasible approach for biochar synthesis and promotes its application in water purification.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2023)

Article Chemistry, Physical

Nonradical-dominated peroxymonosulfate activation through bimetallic Fe/Mn-loaded hydroxyl-rich biochar for efficient degradation of tetracycline

Yihui Li et al.

Summary: In this study, bimetallic Fe/Mn-loaded hydroxyl-rich biochar (FeMn-OH-BC) is synthesized to activate peroxymonosulfate (PMS) through nonradical-dominated pathways for degrading organic pollutants. The FeMn-OH-BC exhibits excellent catalytic activity at a wide range of pH conditions and is not inhibited by various anions. Electron paramagnetic resonance measurements and quenching tests confirm that O-1(2) is the major reactive oxygen species generated from FeMn-OH-BC based PMS activation.

NANO RESEARCH (2023)

Review Environmental Sciences

Applications of agricultural residue biochars to removal of toxic gases emitted from chemical plants: A review

Seong-Heon Cho et al.

Summary: Crop residues, which are agricultural waste materials, are generated massively worldwide. However, a significant amount of crop residues are currently wasted, despite their high potential as a valuable carbon-rich material. This review discusses the valorization methods for crop residues as carbon-rich materials and their applications in the removal of toxic gases in industries. The applications of crop residue biochars in toxic gas removal can have significant environmental benefits and economic feasibility.

SCIENCE OF THE TOTAL ENVIRONMENT (2023)

Article Environmental Sciences

Core-shell magnetic CFO@COF composites toward peroxymonosulfate activation for degradation of sulfamethoxazole from aqueous solution: A comparative study and mechanistic consideration

Chenxin Su et al.

Summary: A core-shell covalent organic framework encapsulated Co1.2Fe1.8O4 magnetic particles were successfully prepared for sulfamethoxazole degradation. The unique interior structure and synergistic effect between COF shell and CFO core resulted in amazing catalytic reactivity, achieving 99.8% removal of SMX within 30 min and 90.8% TOC removal. The activation mechanism in CFO@COF/PMS system was found to be non-radical leading, different from the radical mechanism in CFO/PMS system. Risk assessment showed that the CFO@COF/PMS/SMX system effectively reduced the toxicity of SMX.

CHEMOSPHERE (2023)

Article Environmental Sciences

Efficient degradation of sulfamethoxazole in various waters with peroxymonosulfate activated by magnetic-modified sludge biochar: Surface-bound radical mechanism

Xi Chen et al.

Summary: For the first time, researchers synthesized a magnetic-modified sludge biochar (MSBC) to activate peroxymonosulfate (PMS) and remove sulfamethoxazole (SMX). The PMS/MSBC system achieved a 96.1% removal efficiency of SMX within 60 minutes. The study identified the degradation process and proposed the main degradation pathways of SMX, as well as demonstrated the environmental safety and reuse potential of MSBC.

ENVIRONMENTAL POLLUTION (2023)

Article Engineering, Environmental

Degradation of antibiotic pollutants by persulfate activated with various carbon materials

Yuan Gao et al.

Summary: Antibiotic residues are widespread in water sources, posing ecological risks, with AOPs showing great potential for their removal; Carbon materials can activate persulfate effectively, but there is a lack of comprehensive studies on their behavior; This study provides insight into the degradation of antibiotics by carbon-activated persulfate system and discusses the synergistic effects with other strategies.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Interplay of bicarbonate and the oxygen-containing groups of carbon nanotubes dominated the metal-free activation of peroxymonosulfate

Jia-Cheng E. Yang et al.

Summary: Understanding the interplay of oxygen-containing groups (OCGs) and alkalinity on the oxidation behavior of organic pollutants by carbon-based oxidation processes is crucial for developing green remediation methods. The study found that electron-rich OCGs deprotonated by bicarbonate can promote the activation of Peroxymonosulfate (PMS) to generate more reactive oxygen species (ROS) for the degradation of target contaminants. Despite the diverse ROS controlled by OCGs and bicarbonate, (OH)-O-center dot and/or SO4 center dot--initiated H-atom abstraction reactions are identified as the first steps in the degradation process.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Porous 3D superstructure of nitrogen doped carbon decorated with ultrafine cobalt nanodots as peroxymonosulfate activator for the degradation of sulfonamides

Yan Li et al.

Summary: A porous 3D superstructure of nitrogen-doped carbon decorated with ultrafine cobalt nanodots was prepared and showed excellent catalytic performance towards the degradation of sulfonamides. The catalytic mechanism of Co@NCSS/PMS for sulfamethoxazole degradation was proposed based on experimental and computational analysis. This material has the potential to be an ideal candidate for removing antibiotics from wastewater.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Tunable active sites on biogas digestate derived biochar for sulfanilamide degradation by peroxymonosulfate activation

Yanshan Wang et al.

Summary: The conversion of digestate into biochar-based catalysts is an effective strategy for disposal and resource utilization. The DMDB-800 catalyst exhibited excellent performance for SMX degradation, with 1O2 oxidation and surface electron transfer identified as critical routes for degradation.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Chemical

Degradation of tetracycline hydrochloride through efficient peroxymonosulfate activation by B, N co-doped porous carbon materials derived from metal-organic frameworks: Nonradical pathway mechanism

Jinling Xie et al.

Summary: The study demonstrates that B-NC catalysts show excellent efficiency in the removal of tetracycline hydrochloride, with nitrogen doping changing the degradation pathway and boron doping providing more active sites. Singlet oxygen (O-1(2)) is found to be the major active species in the reaction, while electron transfer is identified as another significant oxidation pathway.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Environmental

Degradation of sulfamethoxazole (SMX) by water falling film DBD Plasma/Persulfate: Reactive species identification and their role in SMX degradation

Kefeng Shang et al.

Summary: The study shows that persulfate can enhance the degradation of sulfamethoxazole in a water falling film dielectric barrier discharge plasma reactor, with PMS performing better than PDS. Increasing the applied voltage, solution pH, and PMS/PDS concentration promotes SMX degradation. The reactive species generated from the activation of PMS/PDS by discharge plasma play a key role in SMX degradation, with center dot OH and SO4 center dot- being particularly important.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Green & Sustainable Science & Technology

Microalgae biomass as a sustainable precursor to produce nitrogen-doped biochar for efficient removal of emerging pollutants from aqueous media

Maria Gonzalez-Hourcade et al.

Summary: A novel nitrogen-doped carbon material was synthesized using microalgae as a carbon precursor and phosphoric acid as an activation agent. The nitrogen-doped biochar exhibited increased specific surface area and micropore percentage compared to the non-doped biochar. The nitrogen-doped biochar showed the highest efficiency in adsorbing acetaminophen and treating synthetic effluents, with a maximum sorption capacity of 120.7 mg g^-1. Pore-filling was identified as the dominant adsorption mechanism for acetaminophen.

JOURNAL OF CLEANER PRODUCTION (2022)

Review Engineering, Environmental

Fabrication, application, and mechanism of metal and heteroatom co-doped biochar composites (MHBCs) for the removal of contaminants in water: A review

Yihuan Liu et al.

Summary: The potential risk of various contaminants in water has attracted public attention recently. Metal and heteroatom co-doped biochar composites (MHBCs), with more active sites and higher affinity for contaminants compared to single-doped biochar, have gained significant interest. This study provides a comprehensive review of MHBCs in wastewater decontamination, including fabrication methods, applications as adsorbents and catalysts, removal mechanisms, and influencing factors. Future challenges of MHBCs are also proposed.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Engineering, Environmental

Mechanisms and product toxicity of activated carbon/peracetic acid for degradation of sulfamethoxazole: implications for groundwater remediation

Chaomeng Dai et al.

Summary: The study investigates the use of carbon-based materials to activate peracetic acid (PAA) in the repair of groundwater, focusing on the degradation of sulfamethoxazole (SMX) using thermally modified activated carbon (AC600). The research examines the influence of groundwater pH, chloride ion (Cl-), bicarbonate (HCO3-), sulfate ion (SO42-) and natural organic matter (NOM) on the SMX removal process. The findings demonstrate that AC600 effectively activates PAA, and increasing doses of AC600 and PAA enhance the SMX removal, with bicarbonate inhibiting the process and chloride ion promoting it.

WATER RESEARCH (2022)

Article Chemistry, Physical

Sulfamethoxazole degradation by regulating active sites on distilled spirits lees-derived biochar in a continuous flow fixed bed peroxymonosulfate reactor

Yanshan Wang et al.

Summary: This study investigates the synergistic roles of active sites in a continuous flow fixed bed PMS reactor, revealing the superior catalytic activity and durability of biochar with high graphite N, C-O content and defect degree in sulfamethoxazole removal.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Article Chemistry, Physical

A comparison of SMX degradation by persulfate activated with different nanocarbons: Kinetics, transformation pathways, and toxicity

Yanhua Peng et al.

Summary: This study compares the oxidation differences of sulfamethoxazole (SMX) by carbon nanotube (CNT)/peroxymonosulfate (PMS), nanodiamond (ND)/PMS, and PMS direct oxidation systems. The results showed that the reaction rate constant of the CNT/PMS system is significantly higher than the ND/PMS and PMS direct oxidation systems. Product analysis revealed differences in the oxidation mechanism and products among the different oxidation systems. Therefore, the choice of carbon catalyst plays a crucial role in the degradation and toxicity of organic pollutants in wastewater treatment.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

Review Engineering, Environmental

Biochar: From by-products of agro-industrial lignocellulosic waste to tailored carbon-based catalysts for biomass thermochemical conversions

Rongge Zou et al.

Summary: Biochar, as a carbon-based catalyst and catalyst support, has great potential due to its huge specific surface area, rich functional groups, and complex network structure, especially in the field of biorefinery.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Built-in electric field mediated peroxymonosulfate activation over biochar supported-Co3O4 catalyst for tetracycline hydrochloride degradation

Minghui Xiong et al.

Summary: The strong electronic interaction between heterogeneous composite catalysts facilitates the enhancement of catalytic performance. In this study, ultrafine Co3O4 composites supported by rape straw derived biochar (BC) were synthesized for tetracycline hydrochloride (TC) degradation via activating peroxymonosulfate (PMS). Both experimental results and density functional theory (DFT) calculations revealed the mechanism and key active sites involved in the catalytic degradation.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Engineering, Environmental

Removal of Gaseous Volatile Organic Compounds by a Multiwalled Carbon Nanotubes/Peroxymonosulfate Wet Scrubber

Jieman Wu et al.

Summary: In this study, a wet scrubber coupled with a persulfate-based advanced oxidation process was demonstrated to efficiently remove gaseous volatile organic compounds (VOCs). The system showed a high removal efficiency for styrene and the complete degradation mechanism was elucidated.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2022)

Article Engineering, Chemical

Anchoring phosphorus on in-situ nitrogen-doped biochar by mechanical milling for promoted electron transfer from diclofenac sodium to peroxymonosulfate

Jia Xie et al.

Summary: This study presents a synthetic strategy for anchoring phosphorus on nitrogen-doped biochar, resulting in a metal-free catalyst with excellent catalytic activity. The NPB/PMS system shows significantly higher degradation and removal rates for DS, attributed to efficient adsorption and electron transfer capabilities. Furthermore, the NPB/PMS system is not significantly affected by pH, anions, humic acid, and actual water, indicating its potential for real-world wastewater treatment.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Environmental Sciences

Resource utilization of chicken manure to produce biochar for effective removal of levofloxacin hydrochloride through peroxymonosulfate activation: The synergetic function of graphitization and nitrogen functionality

Jingqin Ji et al.

Summary: Transforming hazardous livestock manure into biochar as a catalyst for advanced oxidation processes is an effective method for treating waste. This study developed a self-modified biochar catalyst derived from chicken manure for the degradation of levofloxacin hydrochloride. The catalyst exhibited high degradation efficiency, and the reaction mechanism involved several non-radical routes. This work provides insights into the utilization of chicken manure and the activation of peroxymonosulfate for organic contaminant removal.

CHEMOSPHERE (2022)

Article Chemistry, Multidisciplinary

N-doped pinecone-based carbon with a hierarchical porous pie-like structure: a long-cycle-life anode material for potassium-ion batteries

Jian-Fang Lu et al.

Summary: In this study, nitrogen-doped pinecone-based biomass carbon (NPC) with hierarchical porous structure was prepared by carbonization in molten ZnCl2. The strategy based on synergistic effects between N-doping and ZnCl2 molten salt resulted in abundant defects and active sites, as well as an enlarged interlayer distance, which improved K+ adsorption, intercalation/diffusion, and reduced volume expansion effects. The NPC exhibited high reversible capacity, superior rate performance, and cyclic stability, demonstrating its potential for application in potassium-ion batteries.

RSC ADVANCES (2022)

Article Engineering, Environmental

ZIF-8-derived single-atom Cu and N co-coordinated porous carbon as bifunctional material for SMX removal

Wenjun Zhu et al.

Summary: In this study, a single-atom Cu and N co-coordinated porous carbon catalyst was synthesized and used for efficient adsorption and catalytic degradation of the antibiotic SMX in solution. The catalyst exhibited excellent adsorption and catalytic ability due to the presence of well-dispersed single atomic copper sites and unique nitrogen-doped porous carbon structure. This research provides a new perspective for the development of Fenton-like single-atom catalysts.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

Article Engineering, Environmental

A study on advanced oxidation mechanism of MnCo2O4/g-C3N4 degradation of nitrobenzene: Sacrificial oxidation and radical oxidation

Chao-Wen Zheng et al.

Summary: This study investigated the use of CMCN2 to activate PMS for the treatment of nitrobenzene and its homologues in industrial wastewater. The results showed that the CMCN2/PMS system exhibited high removal efficiency and mineralization capacity, with stable operation under different environmental conditions.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Anchoring CuFe2O4 nanoparticles into N-doped carbon nanosheets for peroxymonosulfate activation: Built-in electric field dominated radical and non-radical process

Zheng-Tao Dong et al.

Summary: In this study, CuFe2O4 nanoparticles anchored on nitrogen-doped carbon nanosheets were prepared to investigate the electron transfer for radical and non-radical pathway activation. The results indicate that a built-in electric field (BIEF) plays a crucial role in adjusting the electron transfer. Under the dominance of BIEF, the CFONC-2/PMS system showed excellent removal performance of levofloxacin (LVFX), suggesting a promising strategy for designing metallic oxides-carbon catalyst with strong electric field effect in PMS catalytic reaction.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Enhanced catalytic degradation of aqueous doxycycline (DOX) in Mg-Fe-LDH@biochar composite-activated peroxymonosulfate system: Performances, degradation pathways, mechanisms and environmental implications

Rui Ma et al.

Summary: In this study, a Mg-Fe-LDH@biochar composite was successfully synthesized and applied for the degradation of doxycycline in aqueous solution. The composite showed high degradation efficiency and good recyclability.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Fe/N-codoped carbocatalysts loaded on carbon cloth (CC) for activating peroxymonosulfate (PMS) to degrade methyl orange dyes

Limeng Yang et al.

Summary: A novel Fe/N-codoped carbocatalyst was designed and found to be effective for PMS activation, showing good reusability and stability. The study revealed the important roles of N species and Fe-N binding in PMS activation, with carbon cloth facilitating electron transport in AOPs.

APPLIED SURFACE SCIENCE (2021)

Article Engineering, Environmental

Effect of inorganic anions on the performance of advanced oxidation processes for degradation of organic contaminants

Jianlong Wang et al.

Summary: Inorganic anions such as chloride, carbonate, phosphate, sulfate, and nitrate have a significant impact on the performance of Advanced Oxidation Processes (AOPs). This influence is not solely attributed to their quenching effect, but also affects reactive species, oxidant stability, catalyst activity, and degradation products. Understanding the comprehensive evaluation of the effect of inorganic anions on AOPs is crucial for optimizing the treatment of organic pollutants.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Critical Impact of Nitrogen Vacancies in Nonradical Carbocatalysis on Nitrogen-Doped Graphitic Biochar

Zhonghao Wan et al.

Summary: Nitrogen-doped graphitic biochar (NBC) has shown potential for nonradical carbocatalysis in environmental remediation, with nitrogen vacancies playing a more critical role than nitrogen dopants. Through sophisticated thermo-mechanochemical manipulation, the study demonstrated that nitrogen vacancies exhibited higher affinity towards PMS molecules, resulting in superior carbocatalytic performance. This research sheds light on the understanding of nitrogen doping technology and its application in next-generation biochar design.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Review Engineering, Environmental

Activation of peroxymonosulfate by biochar and biochar-based materials for degrading refractory organics in water: A review

Jiacheng Luo et al.

Summary: The combination of PMS and biochar to produce free radicals has shown great potential in treating refractory organics, and there is still room for further development in the research of the PMS/biochar system.

WATER SCIENCE AND TECHNOLOGY (2021)

Article Engineering, Environmental

Formation of nitrogen functionalities in biochar materials and their role in the mitigation of hazardous emerging organic pollutants from wastewater

Begum Baser et al.

Summary: Biochar, as a promising biomass-derived functional material, can be used as low-cost and environmentally-friendly catalysts for removing emerging organic pollutants (EOPs). This article discusses in-depth the synthetic strategies and formation mechanisms of nitrogen functionalities in biochar, as well as the factors affecting N-surface functionalities. The possible reaction mechanisms for EOPs removal driven by N-functionalities are also addressed.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Synthesis of Fe0/Fe3O4@porous carbon through a facile heat treatment of iron-containing candle soots for peroxymonosulfate activation and efficient degradation of sulfamethoxazole

Yating Yan et al.

Summary: The study focuses on developing efficient and reusable Fe-based catalysts for persulfate-based advanced oxidation processes. The iron-containing candle soots were utilized to prepare magnetically recyclable Fe-0/Fe3O4@porous carbon catalysts with high catalytic activity for sulfamethoxazole degradation. The system demonstrated rapid degradation of the target pollutant, magnetically recyclable properties, and good stability for multiple cycles.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Nitrogen doping sludge-derived biochar to activate peroxymonosulfate for degradation of sulfamethoxazole: Modulation of degradation mechanism by calcination temperature

Shizong Wang et al.

Summary: The study demonstrated that the surface property of biochar can be modified through nitrogen doping and calcination temperature, affecting the degradation mechanism of sulfamethoxazole (SMX) by activating peroxymonosulfate (PMS). Increasing calcination temperature led to a decrease in the contribution of free radicals to SMX degradation, while the contribution of surface-bound reactive species increased gradually. The study also showed that nitrogen-doped sludge-derived biochar (NSDB) had higher catalytic activity compared to sludge-derived biochar (SDB), indicating the potential of nitrogen doping to enhance the catalytic activity of biochar.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Green & Sustainable Science & Technology

Comparison of Biochar Materials Derived from Coconut Husks and Various Types of Livestock Manure, and Their Potential for Use in Removal of H2S from Biogas

Lianghu Su et al.

Summary: This study utilized livestock manure and coconut husks to prepare biochar, with cow dung biochar showing the best adsorption performance and further improvement after activation. Additionally, the research indicated that the H2S removal performance is closely related to the pore size distribution of the biochar.

SUSTAINABILITY (2021)

Review Environmental Sciences

Antibiotics in aquatic environments of China: A review and meta-analysis

Zhen Li et al.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2020)

Review Engineering, Chemical

A comprehensive review on physical activation of biochar for energy and environmental applications

Baharak Sajjadi et al.

REVIEWS IN CHEMICAL ENGINEERING (2019)

Article Chemistry, Multidisciplinary

Heterogeneous activation of peroxymonosulfate for bisphenol AF degradation with BiOI0.5Cl0.5

Weihong Tang et al.

RSC ADVANCES (2019)

Review Microbiology

The antibiotic resistance mobilome: searching for the link between environment and clinic

Julie A. Perry et al.

FRONTIERS IN MICROBIOLOGY (2013)