4.7 Article

Research on different oxidants synergy with dielectric barrier discharge plasma in degradation of Orange G: Efficiency and mechanism

Related references

Note: Only part of the references are listed.
Review Environmental Sciences

Dielectric barrier discharge plasma with photocatalysts as a hybrid emerging technology for degradation of synthetic organic compounds in aqueous environments: A critical review

Mohsen Ansari et al.

Summary: Dielectric barrier discharge (DBD) plasma has been used for the removal of synthetic organic compounds (SOCs) from aqueous environments, but its effectiveness is limited by high electricity needs and inefficient mineralization. The addition of catalysts is a promising and innovative approach to increase energy yield, improve environmental friendliness, develop target SOCs, and enhance removal efficiency of DBD systems. Although more research is needed, coupling catalysts with DBD presents synergistic effects with excellent removal performance for aqueous SOCs.

CHEMOSPHERE (2021)

Article Engineering, Environmental

Molecular insights into the reactivity of aquatic natural organic matter towards hydroxyl (•OH) and sulfate (SO4•-) radicals using FT-ICR MS

Suona Zhang et al.

Summary: This study compared the reactivities of different NOM isolates to hydroxyl radical and sulfate radical, finding that the reaction was influenced by factors such as electron density and molecular size. Certain reactive molecules tended to prefer hydrogen abstraction by hydroxyl radical and decarboxylation by sulfate radical.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

A comprehensive insight into plasma-catalytic removal of antibiotic oxytetracycline based on graphene-TiO2-Fe3O4 nanocomposites

He Guo et al.

Summary: In this study, non-thermal plasma coupled with graphene-TiO2-Fe3O4 nanocomposites was used to promote the degradation of oxytetracycline in water. By optimizing parameters such as doping amount, catalyst dosage, peak voltage, air flow rate, and pH value, a high removal efficiency of oxytetracycline was achieved. Various analytical techniques were employed to explore the degradation process and reactive molecular dynamical simulation showed good agreement with experimental observations, providing insight into the reaction mechanisms.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Environmental Sciences

Enhancing degradation of atrazine by Fe-phenol modified biochar/ferrate (VI) under alkaline conditions: Analysis of the mechanism and intermediate products

Yu Cao et al.

Summary: The Fe-phenol modified biochar enhanced the degradation of atrazine by Fe(VI) under alkaline conditions. Fe(V)/Fe(IV) and ·OH were identified as the main active oxidizing species, contributing to 70% and 24% of degradation, respectively. The combination of Fe-phenol modified biochar and Fe(VI) showed promising potential for atrazine removal with significant reduction in total organic carbon content and toxicity.

CHEMOSPHERE (2021)

Article Environmental Sciences

Degradation of trimethoprim in aqueous by persulfate activated with nanosecond pulsed gas-liquid discharge plasma

Jian-Ping Liang et al.

Summary: Activation of persulfate by nanosecond pulsed gas-liquid discharge (NPG-LD) leads to enhanced degradation of trimethoprim (TMP) in water, with a calculated synergetic factor of 1.62. The synergy is mainly attributed to the increased production of reactive species such as hydroxyl radicals. The degradation process is influenced by factors such as discharge working gas, pulse voltage, persulfate dosage, initial TMP concentration, and initial pH value.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Engineering, Environmental

Fe2+ activating sodium percarbonate (SPC) to enhance removal of Microcystis aeruginosa and microcystins with pre-oxidation and in situ coagulation

Xiaomeng Tian et al.

Summary: The study demonstrates that the Fe2+ activating sodium percarbonate (SPC/Fe2+) process effectively removes Microcystis aeruginosa without damaging cell integrity and reduces the release of MCs. Additionally, the treatment generates low levels of residual iron but caution should be taken to treat M. aeruginosa cells in stored sludge early.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Chemical

MnFe2O4 nanoparticles promoted electrochemical oxidation coupling with persulfate activation for tetracycline degradation

Shoufeng Tang et al.

Summary: The synthesized MnFe2O4 nanoparticles were used to enhance the performance of electrochemical oxidation (EO) with persulfate (PS) for tetracycline (TC) degradation. The MnFe2O4 acted as a catalyst and three-dimensional electrode, improving PS activation and TC elimination. The fabricated nanomaterial showed great potential for TC decontamination, achieving 86.23% removal after 60 minutes of treatment.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Engineering, Environmental

Endogenously activated persulfate by non-thermal plasma for Cu(II)-EDTA decomplexation: Synergistic effect and mechanisms

Yue Liu et al.

Summary: This study developed a novel strategy of coupling non-thermal plasma (NTP) and persulfate (PS) oxidation for decomplexation of Cu-ethylenediaminetetraacetic acid (Cu-EDTA), achieving an obvious synergistic effect. Multiple spectroscopy analyses and Density Functional Theory calculation showed that Cu-O and Cu-N of Cu-EDTA were destroyed in the process.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Degradation of aqueous atrazine using persulfate activated by electrochemical plasma coupling with microbubbles: removal mechanisms and potential applications

Qiancheng Wang et al.

Summary: The study demonstrates that PS activated by DBD in combination with MBs can efficiently degrade ATZ in aqueous solutions, with a degradation efficiency of up to 89%. The heat generated by DBD benefits the removal of ATZ, while factors such as PS dosage, discharge power, and initial pH values have an impact on the effectiveness of ATZ removal. Furthermore, the presence of different ions can have varying effects on the degradation efficiency.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Environmental Sciences

Degradation of tetracycline antibiotics by Fe2+-catalyzed percarbonate oxidation

Jose Antonio I. Pimentel et al.

Summary: This study investigates the degradation of tetracycline antibiotics in aqueous solutions by ferrous ion-catalyzed oxidation in the presence of sodium percarbonate. Experimental results showed that the presence of chloride ions accelerated the degradation kinetics of TC and achieved complete tetracycline abatement in 10 minutes. This suggests the effectiveness of percarbonate oxidation as a tertiary treatment technology for wastewaters containing antibiotics and other pharmaceuticals.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Environmental

Comparative toxicity reduction potential of UV/sodium percarbonate and UV/hydrogen peroxide treatments for bisphenol A in water: An integrated analysis using chemical, computational, biological, and metabolomic approaches

Jiong Gao et al.

Summary: This study evaluated and compared the toxicity of BPA solutions treated with UV/H2O2 and UV/SPC, revealing the formation of various transformation products (TPs) with different technologies, with unique quinonation TPs detected in UV/H2O2 treated solution at a specific UV dose. The results suggest that while the treatments may increase matrix toxicity, they also decrease bioaccumulation potential of TPs, impacting E. coli with inhibited cell growth, arrested cell cycle, and increased cell death.

WATER RESEARCH (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 Environmental Sciences

Efficient activation of peroxymonosulfate and degradation of Orange G in iron phosphide prepared by pickling waste liquor

Meng Wu et al.

Summary: The low-cost preparation of iron phosphide from pickling waste liquor was achieved through a two-step reaction. The iron phosphide coupled with peroxymonosulfate exhibited efficient degradation of Orange G, with the main role played by sulfate radicals. The catalyst showed excellent recycling stability with a catalytic efficiency of 95% after five cycles.

CHEMOSPHERE (2021)

Article Environmental Sciences

Dielectric barrier discharge plasma coupled with WO3 for bisphenol A degradation

Huijuan Wang et al.

Summary: This study utilized DBDP technology and the catalysis of nano WO3 to investigate the degradation of BPA in the DBDP/WO3 synergistic system. The results showed that WO3 had a good catalytic effect in the DBDP system, could degrade BPA, and speculated on the mechanism of BPA degradation.

CHEMOSPHERE (2021)

Review Environmental Sciences

A review on percarbonate-based advanced oxidation processes for remediation of organic compounds in water

Xin Liu et al.

Summary: This article discusses the potential application of sodium percarbonate in water/soil remediation, highlighting its oxidative capacity and environmentally friendly features. It also explores the mechanisms and advantages of the P-AOPs system under different catalytic conditions.

ENVIRONMENTAL RESEARCH (2021)

Article Engineering, Environmental

Simultaneous electrochemical oxidation and ferrate generation for the treatment of atrazine: A novel process for water treatment applications

Sean T. McBeath et al.

Summary: A novel process involving simultaneous electrochemical-oxidation and electrosynthesis of ferrate was investigated for the treatment of atrazine, a commonly detected and recalcitrant pesticide. The synthesis of ferrate was affected by initial iron concentration, with higher concentrations resulting in higher ferrate generation. Additionally, the degradation of atrazine using electrochemically-generated ferrate showed a higher degradation rate constant compared to solely electrochemical oxidation processes.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Enhanced 4-FP removal with MnFe2O4 catalysts under dielectric barrier discharge plasma: Economical synthesis, catalytic performance and degradation mechanism

Xiaojing Wang et al.

Summary: The combination of DBDP process and MnFe2O4 catalyst shows great potential in efficiently removing organic contaminants from water, with enhanced degradation efficiency and without the generation of more toxic intermediates.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Kinetics and mechanisms of phenolic compounds by Ferrate(VI) assisted with density functional theory

Yihao Li et al.

Summary: This study investigates the oxidation mechanism of phenolic compounds by ferrate (Fe(VI)), showing increased degradation rates at higher pH levels. It identifies 14 degradation products, proposes two possible pathways, and highlights the crucial role of hydroxyl radicals in the degradation process. Density functional theory calculations reveal preferences for chlorine atom substitution over hydrogen atom and ortho-position substitution over para-position for all four compounds, providing valuable insights for environmental remediation.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Chemical

Promoted elimination of antibiotic sulfamethoxazole in water using sodium percarbonate activated by ozone: Mechanism, degradation pathway and toxicity assessment

He Guo et al.

Summary: The combination of sodium percarbonate (SPC) and ozone (O-3) was effective in enhancing the elimination of sulfamethoxazole (SMX) in water, with alkaline conditions showing the best removal efficiency. Free radicals, especially (OH)•, played a crucial role in the decomposition of SMX, and the addition of SPC promoted the production of (OH)• in the O-3 system, leading to improved elimination of SMX. The degradation of SMX and the enhancement of TOC and COD removal were observed in the O-3/SPC system, indicating the potential of this method for water treatment.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Engineering, Environmental

Ferrate self-decomposition in water is also a self-activation process: Role of Fe(V) species and enhancement with Fe(III) in methyl phenyl sulfoxide oxidation by excess ferrate

Zhuang-Song Huang et al.

Summary: This study elucidated the crucial role of ferrate self-decomposition in oxidation reactions and developed a mechanistic kinetics model to understand the involvement of Fe(V), Fe(VI), and Fe(IV) species in the oxidation of PMSO. Results showed that the Fe(V) species derived from ferrate self-decomposition contributed significantly to PMSO oxidation, while the oxidation pathways of Fe(VI) and Fe(V) were influenced by different factors. The findings suggest the general role of Fe(V) and the potential enhancement by Fe(III) during ferrate oxidation of micropollutants.

WATER RESEARCH (2021)

Article Engineering, Environmental

Effect of the presence of inorganic anions on the degradation of phenol by dielectric barrier discharge plasma combined with RGO-TiO2

Wenjiao Sang et al.

Summary: In this study, RGO-TiO2 composites were used in combination with dielectric barrier discharge plasma for phenol degradation. The presence of Cl- and SO42- inhibited the degradation of phenol, while NO3- had a lesser effect. The addition of CO32- significantly accelerated the degradation process, possibly facilitated by the generation of O3 and H2O2.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Environmental Sciences

Formation potential of emerging disinfection by-products during ozonation and chlorination of sewage effluents

A. Kozari et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Article Engineering, Environmental

Percarbonate oxidation of landfill leachates towards removal of ultraviolet quenchers

Syeed Md Iskander et al.

ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY (2017)

Article Engineering, Environmental

Synergetic degradation of Acid Orange 7 (AO7) dye by DBD plasma and persulfate

Kefeng Shang et al.

CHEMICAL ENGINEERING JOURNAL (2017)

Review Chemistry, Inorganic & Nuclear

Ferrate(VI) and ferrate(V) oxidation of organic compounds: Kinetics and mechanism

Virender K. Sharma

COORDINATION CHEMISTRY REVIEWS (2013)

Article Acoustics

Degradation of orange-G by advanced oxidation processes

Jagannathan Madhavan et al.

ULTRASONICS SONOCHEMISTRY (2010)

Review Engineering, Environmental

Agricultural based activated carbons for the removal of dyes from aqueous solutions: A review

Ayhan Demirbas

JOURNAL OF HAZARDOUS MATERIALS (2009)