4.8 Article

Efficient full dechlorination of chlorinated ethenes on single enzyme-like Co-N4 sites in nitrogen-doped carbons

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

Generation of adsorbed atomic hydrogen by Pd(II) doped Fe(OH)2 enables ultra-fast reductive dechlorination of trichloroethylene

Li-Zhi Huang et al.

Summary: In this study, adsorbed atomic hydrogen (H*) generated by Pd(II) doped Fe(OH)2 was used for ultra-fast reductive dechlorination of trichloroethylene (TCE) without the formation of less-chlorinated by-products. The results showed that small Pd clusters were more effective in TCE dechlorination, and the application of Pd/Fe(OH)2 in real groundwater demonstrated potential for groundwater remediation.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Physical

Highly selective production of singlet oxygen by manipulating the spin state of single-atom Co-N moieties and electron localization

Zhiwei Wang et al.

Summary: In this study, it was found that electron localization and high spin state of metal active sites favored peroxymonosulfate (PMS) co-adsorption and dissociation, promoting selective production of singlet oxygen (1O2). By fabricating single cobalt atoms anchored on uneven graphite carbon nitride nanosheet (Co-SA/CMN), the highest 1O2 production selectivity so far was achieved with 87.8% of the consumed PMS converted to 1O2. The Co-SA/CMN/PMS system exhibited remarkable degradation efficiency to multiple organic pollutants, resistance to environmental interference, and robust stability at the device level. This finding deepens the understanding of the mechanistic origins of high 1O2 production selectivity and provides a rational strategy for precisely controlling 1O2 generation in PMS activation.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Physical

Enhanced reductive degradation of tetrabromobisphenol A by biochar supported sulfidated nanoscale zero-valent iron: Selectivity and core reactivity

Feilong Gao et al.

Summary: A core-shell structure of sulfidated nanoscale zero-valent iron deposited on biochar (S-nZVI/BC) was synthesized and proved to be highly reactive and selective for tetrabromobisphenol A (TBBPA) degradation compared to nZVI/BC. The combination of sulfidation and biochar enhanced the reactivity and selectivity of S-nZVI/BC by controlling the distribution of sulfur species and improving hydrophobicity and electron-transfer. The mechanism investigation revealed that core properties dominated reactivity and TBBPA debromination involved direct electron-transfer.

APPLIED CATALYSIS B-ENVIRONMENTAL (2023)

Article Chemistry, Multidisciplinary

Loading Single-Ni Atoms on Assembled Hollow N-Rich Carbon Plates for Efficient CO2 Electroreduction

Yunxiang Li et al.

Summary: The rational design of dual-linker zeolitic tetrazolate framework-engaged strategy successfully constructed an Ni-NC(AHP) electrocatalyst with enhanced mesoporosity and more available surface area, promoting mass transport and affording abundant accessible single-Ni sites.

ADVANCED MATERIALS (2022)

Article Engineering, Environmental

A comparative study on the physicochemical properties, reactivity and long-term performance of sulfidized nanoscale zerovalent iron synthesized with different kinds of sulfur precursors and procedures in simulated groundwater

Shuangjie Xiao et al.

Summary: This study investigated the influence of sulfur reagents and sulfidation sequence on the properties and performance of S-nZVI in simulated groundwater. The results showed that co-sulfidized S-nZVI had higher reactivity but lost it more rapidly during aging compared to post-sulfidized S-nZVI. S-nZVIpost exhibited superior long-term performance with a degradation rate of trichloroethylene (TCE) remaining at 30%-60% after 90 days of aging. The sulfur precursors affected the selectivity of S-nZVI, but not the degradation pathway of TCE.

WATER RESEARCH (2022)

Article Engineering, Environmental

Mechanistic insight into co-metabolic dechlorination of hexachloro-1,3-butadiene in Dehalococcoides

Rui Shen et al.

Summary: This study successfully identified and characterized the reductive dechlorination of HCBD by Dehalococcoides through in vivo and in vitro experiments as well as quantum chemical calculation. It revealed that HCBD-dechlorinating Dehalococcoides extensively dechlorinated HCBD to (E)-1,2,3-tri-CBD through (E)-1,1,2,3,4-penta-CBD and (Z,E)-1,2,3,4-tetra-CBD in a co-metabolic way. It also found that HCBD-dechlorinating Dehalococcoides coupled their cell growth with dechlorination of PCE, and significant inhibition of BDCM on hydrogenase activity could block electron derivation from H2 in the in vivo experiments.

WATER RESEARCH (2022)

Article Engineering, Environmental

Molybdenum-Catalyzed Perchlorate Reduction: Robustness, Challenges, and Solutions

Changxu Ren et al.

Summary: We have developed a highly active ligand-enabled Mo-Pd/C catalyst for the reduction of aqueous perchlorate (ClO4-) using hydrogen gas. This catalyst exhibits satisfactory properties for the treatment of ClO4- in waste brines, even in the presence of concentrated salts and humic acid. It shows promise as a competitive alternative to microbial reactors for ClO4- reduction.

ACS ES&T ENGINEERING (2022)

Article Multidisciplinary Sciences

Integrating single-cobalt-site and electric field of boron nitride in dechlorination electrocatalysts by bioinspired design

Yuan Min et al.

Summary: In this study, a single-atomic-site Co catalyst supported by BCN was reported to simulate reductive dehalogenases, showing high activity and selectivity in CAP dechlorination compared to other catalysts. The Co SAs/BCN catalyst exhibited enhanced stability and efficiency, making it a promising candidate for sustainable organic chloride conversion.

NATURE COMMUNICATIONS (2021)

Article Engineering, Environmental

Single-Atom Fe Catalyst Outperforms Its Homogeneous Counterpart for Activating Peroxymonosulfate to Achieve Effective Degradation of Organic Contaminants

Kun Qian et al.

Summary: In this study, FeN4 structures were constructed on carbon nanotubes to obtain single-atom catalysts, which successfully generated reactive iron species (RFeS) for the selective degradation of emerging organic contaminants (EOCs) over a wide pH range. The results revealed the mechanism of RFeS generation and the important role of carbon nanotubes in enhancing the reactivity of FeN4=O intermediates.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Article Chemistry, Multidisciplinary

A Bioinspired Molybdenum Catalyst for Aqueous Perchlorate Reduction

Changxu Ren et al.

Summary: This study introduces a hybrid catalyst for reducing aqueous ClO4- into Cl- at room temperature with 1 atm of H-2, showing high turnover number and turnover frequency.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Physical

On the dual role of the reactant during aqueous phase hydrodechlorination of trichloroethylene (HDC of TCE) using Pd supported on swellable organically modified silica (SOMS)

Saurabh Ailawar et al.

Summary: This study investigates the dual role of trichloroethylene (TCE) in liquid-phase hydrodechlorination with Pd catalysts supported on swellable organically modified silica (SOMS). The results show that TCE acts as both a reactant and a swelling-agent, with economic viability for the hydrodechlorination process.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Review Chemistry, Multidisciplinary

Fe(II) Redox Chemistry in the Environment

Jianzhi Huang et al.

Summary: This review focuses on the redox reactivity of four types of Fe(II) species and discusses their formation pathways, factors governing the reactivity, potential mechanisms, reactivity comparison, and characterization techniques. It also covers the roles of Fe(II) species in environmental applications and abiotic oxidation related processes in natural and engineered systems.

CHEMICAL REVIEWS (2021)

Review Engineering, Environmental

Recent Advances in Sulfidated Zerovalent Iron for Contaminant Transformation

Ariel Nunez Garcia et al.

Summary: The development of S-(n)ZVI technology over the past decade has sparked significant interest due to its high reactivity towards chlorinated solvents and heavy metals. Researchers are actively exploring different synthesis approaches and properties to enhance the reactivity of S-(n)ZVI.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Review Chemistry, Multidisciplinary

When Nanozymes Meet Single-Atom Catalysis

Lei Jiao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Article Engineering, Environmental

Ferrous ion mitigates the negative effects of humic acid on removal of 4-nitrophenol by zerovalent iron

Hejie Qin et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Article Chemistry, Physical

Single-Ni-atom catalyzes aqueous phase electrochemical reductive dechlorination reaction

Yinghua Xu et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2020)

Review Environmental Sciences

Bioremediation of typical chlorinated hydrocarbons by microbial reductive dechlorination and its key players: A review

Zhixing Xiao et al.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2020)

Article Engineering, Environmental

Abiotic Degradation of Chlorinated Solvents by Clay Minerals and Fe(II): Evidence for Reactive Mineral Intermediates

James Entwistle et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

Article Engineering, Civil

Correlation analysis of pollutant factors influencing the sulfite/UV-L advanced reduction process

Mei Qiwen et al.

KSCE JOURNAL OF CIVIL ENGINEERING (2018)

Review Chemistry, Physical

Single-atom catalysts and their applications in organic chemistry

Huan Yan et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

Review Chemistry, Multidisciplinary

Carbon-Supported Single Atom Catalysts for Electrochemical Energy Conversion and Storage

Yi Peng et al.

ADVANCED MATERIALS (2018)

Article Multidisciplinary Sciences

Cobamide-mediated enzymatic reductive dehalogenation via long-range electron transfer

Cindy Kunze et al.

NATURE COMMUNICATIONS (2017)

Review Chemistry, Multidisciplinary

Enzymatic Halogenation and Dehalogenation Reactions: Pervasive and Mechanistically Diverse

Vinayak Agarwal et al.

CHEMICAL REVIEWS (2017)

Article Multidisciplinary Sciences

Reductive dehalogenase structure suggests a mechanism for B12-dependent dehalogenation

Karl A. P. Payne et al.

NATURE (2015)

Article Multidisciplinary Sciences

Structural basis for organohalide respiration

Martin Bommer et al.

SCIENCE (2014)

Article Engineering, Environmental

Application of Emulsified Substrate Biobarrier to Remediate TCE-Contaminated Groundwater: Pilot-Scale Study

Y. C. Kuo et al.

JOURNAL OF HAZARDOUS TOXIC AND RADIOACTIVE WASTE (2014)

Review Engineering, Environmental

Critical Review of Pd-Based Catalytic Treatment of Priority Contaminants in Water

Brian P. Chaplin et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2012)

Article Chemistry, Multidisciplinary

Multiwfn: A multifunctional wavefunction analyzer

Tian Lu et al.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2012)

Article Engineering, Environmental

Occurrence of volatile organic compounds in aquifers of the United States

Janet M. Carter et al.

JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION (2008)

Article Chemistry, Multidisciplinary

Spectroscopic and computational studies of Co1+ cobalamin:: Spectral and electronic properties of the superreduced B12 cofactor

Mathew D. Liptak et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2006)

Article Environmental Sciences

Role of metalloporphyrin core metals in the mediated reductive dechlorination of tetrachloroethylene

I Dror et al.

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY (2003)