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Indongo G, Varghese S, Shkhair AI, Abraham MK, Rajeevan G, Kala AB, Madanan AS, George S. Fe(III)-quenched cysteine-capped copper nanoclusters as a selective fluorescence turn-on sensor for valine: A potential cancer biomarker candidate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2025; 335:125981. [PMID: 40054147 DOI: 10.1016/j.saa.2025.125981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2025] [Revised: 02/21/2025] [Accepted: 03/01/2025] [Indexed: 03/24/2025]
Abstract
This study introduces a fluorescence turn-on sensor for the selective detection of valine, an amino acid increasingly recognized as a potential biomarker in cancer diagnostics, using iron(III) (Fe3+) quenched L-cysteine capped copper nanoclusters (L-cys@CuNCs) based on the paramagnetic quenching mechanism of Fe3+. The L-cys@CuNCs, synthesized through a one-pot hydrothermal method, exhibit stable green fluorescence, high photostability and a detection limit of 3.00 µM for valine. Restoration of fluorescence upon interaction with valine enables a highly sensitive detection, with strong selectivity against other amino acids and ions. This specificity makes the sensor particularly promising for screening valine in biological samples, supporting its potential as a non-invasive cancer biomarker. To enhance practicality, a paper-based assay was developed, demonstrating its adaptability to point of care formats. Additionally, testing in human saliva and urine samples validated the probe's utility in real biological conditions, underscoring its potential in non-invasive cancer diagnostics. This biosensing platform offers a rapid, accessible tool for valine detection, contributing to early cancer detection and patient screening in clinical and resource limited settings.
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Affiliation(s)
- Geneva Indongo
- Department of Biotechnology, Faculty of Applied Sciences and Technology, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Susan Varghese
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Ali Ibrahim Shkhair
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Merin K Abraham
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Greeshma Rajeevan
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Arathy B Kala
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Anju S Madanan
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India
| | - Sony George
- Department of Chemistry, School of Physical and Mathematical Sciences, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India; International Inter University Centre for Sensing and Imaging (IIUCSI), Department of Chemistry, University of Kerala, Kariavattom Campus, Thiruvananthapuram 695581, Kerala, India.
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2
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Zu D, Liu J, Wei H, Yang K, Tian H, Ma J, Yang Z. Comparative life cycle assessment of Fenton-like systems: Insights into the environmental benefits of reductant-driven strategies. WATER RESEARCH 2025; 279:123489. [PMID: 40106861 DOI: 10.1016/j.watres.2025.123489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2024] [Revised: 02/12/2025] [Accepted: 03/11/2025] [Indexed: 03/22/2025]
Abstract
Reductant-driven Fenton-like advanced oxidation processes (AOPs) offer the potential to reduce transition metal and oxidant consumption, but the environmental implications of introducing reductants remain unclear. This study employs life cycle assessment (LCA) to evaluate the environmental impacts of reductant-driven Fenton-like systems as an alternative to conventional AOP. Five distinct Fenton-like systems were investigated, and their corresponding life cycle inventories compiled following systematic optimization of operating parameters. Results demonstrate that introducing reductant shifts environmental hotspots from oxidants to the added reductants. Commodity chemical reductants (hydroxylamine and ascorbic acid) significantly reduce energy consumption and environmental damage due to economies of scale. Their per unit Cumulative Energy Demand (CED) and environmental damage value are two orders of magnitude lower than those of specialty chemical reductants (10.31 and 8.93 MJ g-1 MXene and MoS2). Thus, novel catalysts, potentially associated with high energy consumption and toxic byproducts, require careful evaluation of their catalytic efficiency and unit environmental impact to determine overall environmental benefits. Scaling up chemical production, adopting regeneration strategy and transitioning to renewable energy sources represent key strategies for further environmental improvement. This study provides a quantitative framework for assessing the environmental performance of alternative Fenton-like systems, informing the design of more environmentally sustainable water purification technologies.
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Affiliation(s)
- Daoyuan Zu
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Jianbo Liu
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Heting Wei
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Kui Yang
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519087, China
| | - Hailin Tian
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Jinxing Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China.
| | - Zhifeng Yang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
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3
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Yang S, Yu S, Dong Y, Liu J, Zhou P, Zhang H, Xiong Z, He CS, Lai B. Whether peracetic acid-based oxidation process is an alternative to the traditional Fenton process in organic pollutants degradation and actual wastewater treatment? JOURNAL OF HAZARDOUS MATERIALS 2025; 490:137752. [PMID: 40020299 DOI: 10.1016/j.jhazmat.2025.137752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2024] [Revised: 01/21/2025] [Accepted: 02/24/2025] [Indexed: 03/03/2025]
Abstract
Industrialization has exerted significant adverse effects on water quality, leading to an increasing demand for environmentally friendly and high-efficiency technologies. The traditional Fenton process has been recognized as a viable method for treating challenging industrial wastewater. Recently, peracetic acid (PAA)-based advanced oxidation processes (AOPs) have emerged as a promising Fenton-like technology for efficient wastewater treatment. To evaluate the potential application of this technology in industrial wastewater treatment, the Fe(II)/PAA and Fe(II)/H2O2 processes were compared. The PAA/Fe(II) process demonstrates greater effectiveness at lower oxidant dosages for pollutant degradation. Specifically, within a pH range of 3.0-5.0, the Fe(II)/PAA process showed superior degradation efficiency compared to the Fe(II)/H2O2 process under optimal conditions for both processes (Fe(II): H2O2 = 100 µM: 200 µM and Fe(II): PAA = 100 µM: 100 µM). Furthermore, the PAA/Fe(II) process exhibits a higher tolerance to various water matrices. When treating actual wastewater, the PAA/Fe(II) process significantly improves the value of BOD5/COD of dinitrodiazophenol (DDNP) and pharmaceutical wastewaters from 0.157 and 0.292 to 0.518 and 0.651, respectively, surpassing the enhancement of biodegradability by the H2O2/Fe(II) system. The PAA/Fe(II) system also demonstrates superior performance in reducing biological toxicity. In conclusion, this study offers a comparative analysis of the emerging PAA/Fe(II) process versus the traditional H2O2/Fe(II) process, highlighting the potential strengths and limitations of using PAA as an alternative to H2O2 in wastewater treatment.
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Affiliation(s)
- Shurun Yang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Siying Yu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Yudan Dong
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Jiamei Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Peng Zhou
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Heng Zhang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Zhaokun Xiong
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Chuan-Shu He
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China.
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China; Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, Nanchang Hangkong University, Nanchang 330063, China.
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4
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Gu C, Yang Q, Zhang X, Feng R, Wang S, Liu T, He P, Yin H, Zhu J, Gan M. Bioengineered iron-based heterojunction orientation in optimizing activation pathways for superoxide radical-mediated photoreduction of Cr(VI) from water. WATER RESEARCH 2025; 283:123832. [PMID: 40381273 DOI: 10.1016/j.watres.2025.123832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2025] [Revised: 04/28/2025] [Accepted: 05/13/2025] [Indexed: 05/20/2025]
Abstract
Photocatalytic technology has been widely employed for Cr(VI) remediation. However, the inadequate generation of reactive oxygen species associated with the Cr(VI) reduction, caused by the uncontrollable photo-Fenton reaction, significantly restricts the reduction efficiency. Herein, a bioengineered iron-based heterojunction (Bio-Fe2O3/Fe2(WO4)3) was fabricated via a two-step process of biomineralization and calcination, where tungstate was doped into the precursor during iron metabolism in acidophilic bacteria to optimize the heterojunction structure. Bio-Fe2O3/Fe2(WO4)3 exhibited a short-range ordered structure and superior photocatalytic performance, achieving 100 % reduction of 20 mg/L Cr(VI) within 60 min by photocatalytic oxalic acid (OA) under simulated light conditions. The system provided robust operation in complex environments, notably, operating effectively under mild solar radiation as an alternative to the simulated light. The heterojunction structure intensified the H2O2 activation and selectively boosted the yield of superoxide radical (O2·-), the primary Cr(VI)-reducing species, from 48.02 % to 72.96 %. The high oxidation state of Fe in Bio-Fe2O3/Fe2(WO4)3 contributed to stronger adsorption performance towards OA and H2O2, accompanied with the tendency to take the O2·--generated activation pathway. This work provides a broader perspective on the rational design of photocatalysts to modulate the OA photocatalysis and the H2O2 activation pathway, selectively elevating the yield of O2·- for Cr(VI) reduction.
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Affiliation(s)
- Chunyao Gu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biohydrometallurgy of Ministry of Education, Changsha, 410083, China
| | - Quanliu Yang
- Guizhou Academy of Tobacco Science, Guiyang, 550011, China
| | - Xiaowen Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Ran Feng
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Shuyang Wang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Tianye Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Peng He
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biohydrometallurgy of Ministry of Education, Changsha, 410083, China
| | - Huaqun Yin
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biohydrometallurgy of Ministry of Education, Changsha, 410083, China
| | - Jianyu Zhu
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biohydrometallurgy of Ministry of Education, Changsha, 410083, China.
| | - Min Gan
- School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China; Key Laboratory of Biohydrometallurgy of Ministry of Education, Changsha, 410083, China.
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Tian Q, Jiang Y, Duan X, Li Q, Gao Y, Xu X. Low-peroxide-consumption fenton-like systems: The future of advanced oxidation processes. WATER RESEARCH 2025; 268:122621. [PMID: 39426044 DOI: 10.1016/j.watres.2024.122621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2024] [Revised: 10/07/2024] [Accepted: 10/10/2024] [Indexed: 10/21/2024]
Abstract
Conventional heterogeneous Fenton-like systems employing different peroxides have been developed for water/wastewater remediation. However, a large population of peroxides consumed during various Fenton-like systems with low utilization efficiency and associated secondary contamination have become the bottlenecks for their actual applications. Recent strategies for lowering the peroxide consumptions to develop economic Fenton-like systems are primarily devoted to the effective radical generation and subsequent high-efficiency radical utilization through catalysts/systems engineering, leveraging emerging nonradical oxidation pathways with higher selectivity and longer life of the reactive intermediate, as well as reactor designs for promoting the mass transfer and peroxides decomposition to improve the yield of radicals/nonradicals. However, a comparative review summarizing the mechanisms and pathways of these strategies has not yet been published. In this review, we endeavor to showcase the designated systems achieving the reduction of peroxides while ensuring high catalytic activity from the perspective of the above strategic mechanisms. An in-depth understanding of these aspects will help elucidate the key mechanisms for achieving economic peroxide consumption. Finally, the existing problems of these strategies are put forward, and new ideas and research directions for lowering peroxide consumption are proposed to promote the application of various Fenton-like systems in actual wastewater purification.
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Affiliation(s)
- Qingbai Tian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Yue Jiang
- Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China.
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Qian Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Yue Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China.
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Zhang L, Zhao Y, Kong W, Zhang H, Zang L, Zhao M, Zhang J, Kong RM, Zhang ES, Qu F, Tan W. Functional Metallocenes as Cofactors Promote the Catalytic Performance of Mimetic Enzymes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2025; 21:e2405851. [PMID: 39478670 DOI: 10.1002/smll.202405851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2024] [Revised: 10/14/2024] [Indexed: 01/30/2025]
Abstract
Coenzymes (cofactors) are essential for bio-redox reactions, group transfer reactions, and heterogeneous reactions of bio-enzymes, as well as the auxiliary transfer of electrons or atoms to promote bio-enzyme activity. However, when mimetic enzymes are scaled to the micro or nanoscale levels, both the absence of cofactor activity and the presence of migrating internal atoms cause self-depletion, eventually limiting sustained usage. Herein, cofactor regulation, a key issue long neglected in traditional mimetic enzyme construction is addressed. In particular, the construction of a mimetic enzyme with monomeric ferrocene is reported. The artificial enzyme consists of both a catalytic center (Fe2+/3+) and a proximate structural unit (functional cyclopentadienyl). The reducing properties of cyclopentadienyl are used as a cofactor to decrease activation energy required to catalyze Fe3+ to Fe2+, lower energy barriers to increase recycling, and, finally, promote electron transfer. This ferrocene-based mimetic enzyme can achieve non-depletion cycle catalysis by keeping the structures and properties of the enzyme constant after the catalytic reaction. Thus, this in situ self-assembly construction of mimetic enzymes using functionalized proximate structural units as cofactors offers a niche concept to solve the predicament of self-depletion such as that seen in traditional mimetic enzymes.
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Affiliation(s)
- Liyuan Zhang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Yan Zhao
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Weiheng Kong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Hui Zhang
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
| | - Lin Zang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Mingzhu Zhao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Jingchen Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Rong-Mei Kong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - En-Sheng Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Fengli Qu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong, 273165, China
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
| | - Weihong Tan
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
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Tian Q, Chang J, Yu B, Jiang Y, Gao B, Yang J, Li Q, Gao Y, Xu X. Co-catalysis strategy for low-oxidant-consumption Fenton-like chemistry: From theoretical understandings to practical applications and future guiding strategies. WATER RESEARCH 2024; 267:122488. [PMID: 39306932 DOI: 10.1016/j.watres.2024.122488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Revised: 09/16/2024] [Accepted: 09/19/2024] [Indexed: 11/28/2024]
Abstract
Recently, great effects have been made for the co-catalysis strategy to solve the bottlenecks of Fenton system. A series of co-catalysis strategies using various inorganic metal co-catalysts and organic co-catalysts have been developed in various oxidant (i.e., hydrogen peroxide (H2O2) and persulfate) systems with significantly promotion of catalytic performances and lower oxidant consumption (only 5-10 % of conventional Fenton/Fenton-like systems). However, the developments of these co-catalysis strategies from theoretical understandings to practical applications and future guiding strategies were overlooked, which was an essential problem that must be considered for the future scale-up applications of co-catalysis systems. In this paper, these co-catalysis strategies with low-oxidant-consumption characteristics have been reviewed by the comparison of their co-catalysis mechanisms, as well as their advantages and disadvantages. We also discussed the recent developments of amplifying devices based on the co-catalysis systems. The scale-up performances of co-catalysis strategies based on these amplifying devices have also been assessed. In addition, future guiding strategies for the development of co-catalysis strategy with low-oxidant-consumption characteristics have also been first time outlined by the combination of the technical-economic analysis (TEA), life cycle assessment (LCA) and machine learning (ML). Finally, the paper systematically discusses the development opportunities, technical bottlenecks and future development directions of co-catalysis strategies with the prospect of large-scale applications. Basically, this work provides a systematic review on co-catalysis strategy with low-oxidant-consumption characteristic from theoretical understandings to practical applications and future guiding strategies.
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Affiliation(s)
- Qingbai Tian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Jiale Chang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Bingliang Yu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Yue Jiang
- Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Jingren Yang
- State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, Shanghai Academy of Environmental Sciences, Shanghai 200233, China
| | - Qian Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Yue Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China.
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8
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Lu H, Hou L, Zhang Y, Cao X, Xu X, Shang Y. Pilot-scale and large-scale Fenton-like applications with nano-metal catalysts: From catalytic modules to scale-up applications. WATER RESEARCH 2024; 266:122425. [PMID: 39265214 DOI: 10.1016/j.watres.2024.122425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 08/29/2024] [Accepted: 09/09/2024] [Indexed: 09/14/2024]
Abstract
Recently, great efforts have been made to advance the pilot-scale and engineering-scale applications of Fenton-like processes using various nano-metal catalysts (including nanosized metal-based catalysts, smaller nanocluster catalysts, and single-atom catalysts, etc.). This step is essential to facilitate the practical applications of advanced oxidation processes (AOPs) for these highly active nano-metal catalysts. Before large-scale implementation, these nano-metal catalysts must be converted into the effective catalyst modules (such as catalytic membranes, fluidized beds, or polypropylene sphere suspension systems), as it is not feasible to use suspended powder catalysts for large-scale treatment. Therefore, the pilot-scale and engineering applications of nano-metal catalysts in Fenton-like systems in recent years is exciting. In addition, the combination of life cycle assessment (LCA) and techno-economic analysis (TEA) can provide a useful support tool for engineering scale Fenton-like applications. This paper summarizes the designs and fabrications of various advanced modules based on nano-metal catalysts, analyzes the advantages and disadvantages of these catalytic modules, and further discusses their Fenton-like pilot scale or engineering applications. Concepts of future Fenton-like engineering applications of nano-metal catalysts were also discussed. In addition, current challenges and future expectations in pilot-scale or engineering applications are assessed in conjunction with LCA and TEA. These challenges require further technological advances to enable larger scale engineering applications in the future. The aim of these efforts is to increase the potential of nanoscale AOPs for practical wastewater treatment.
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Affiliation(s)
- Haoyun Lu
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Lifei Hou
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Yang Zhang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Xiaoqiang Cao
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China.
| | - Yanan Shang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
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9
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Xiao S, Liu T, Li N, Ding J, Chen J, Xu Y, Zhang L, Yang L, Zhou X, Ren N, Zhang Y. Chloride-mediated enhancement in Cu(II)-catalyzed Fenton-like reaction: The overlooked reactive chlorine species. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 360:124586. [PMID: 39033841 DOI: 10.1016/j.envpol.2024.124586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 06/27/2024] [Accepted: 07/19/2024] [Indexed: 07/23/2024]
Abstract
The practical application of Cu(II)-catalyzed Fenton-like reaction (Cu(II)/H2O2) exhibits a low efficiency in the degradation of refractory compounds of wastewater. The impact of chloride ions (Cl-) on Fenton-like reactions have been investigated, but the influence mechanism is still unclear. Herein, the presence of Cl- (5 mM) significantly accelerated the degradation of benzoic acid (BA) under neutral conditions. The degradation of BA follows pseudo-first-order kinetics, with a degradation rate 7.3 times higher than the Cu(II)/H2O2 system. Multiple evidences strongly demonstrated that this reaction enables the production of reactive chlorine species (RCS) rather than HO• and high-valent copper (Cu(III)). The kinetic model revealed that Cl- could shift reactive species from the key intermediate (Cu(III)-chloro complexes) to RCS. Dichlorine radicals (Cl2•-) was discovered to play a crucial role in BA degradation, which was largely overlooked in previous reports. Although the reaction rate of Cl2•- with BA (k = 2.0 × 106 M-1 s-1) is lower than that of other species, its concentration is 10 orders of magnitude higher than that of Cu(III) and HO•. Furthermore, the exceptional efficacy of the Cu(II)/H2O2 system in BA degradation was observed in saline aquatic environments. This work sheds light on the previously unrecognized role of the metal-chloro complexes in production the RCS and water purification.
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Affiliation(s)
- Shaoze Xiao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Tongcai Liu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Nan Li
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Jie Ding
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Jiabin Chen
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Yao Xu
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Longlong Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Libin Yang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, PR China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai, 200092, PR China.
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10
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Zhu ZS, Zhong S, Cheng C, Zhou H, Sun H, Duan X, Wang S. Microenvironment Engineering of Heterogeneous Catalysts for Liquid-Phase Environmental Catalysis. Chem Rev 2024; 124:11348-11434. [PMID: 39383063 DOI: 10.1021/acs.chemrev.4c00276] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2024]
Abstract
Environmental catalysis has emerged as a scientific frontier in mitigating water pollution and advancing circular chemistry and reaction microenvironment significantly influences the catalytic performance and efficiency. This review delves into microenvironment engineering within liquid-phase environmental catalysis, categorizing microenvironments into four scales: atom/molecule-level modulation, nano/microscale-confined structures, interface and surface regulation, and external field effects. Each category is analyzed for its unique characteristics and merits, emphasizing its potential to significantly enhance catalytic efficiency and selectivity. Following this overview, we introduced recent advancements in advanced material and system design to promote liquid-phase environmental catalysis (e.g., water purification, transformation to value-added products, and green synthesis), leveraging state-of-the-art microenvironment engineering technologies. These discussions showcase microenvironment engineering was applied in different reactions to fine-tune catalytic regimes and improve the efficiency from both thermodynamics and kinetics perspectives. Lastly, we discussed the challenges and future directions in microenvironment engineering. This review underscores the potential of microenvironment engineering in intelligent materials and system design to drive the development of more effective and sustainable catalytic solutions to environmental decontamination.
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Affiliation(s)
- Zhong-Shuai Zhu
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
| | - Shuang Zhong
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
| | - Cheng Cheng
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
| | - Hongyu Zhou
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
| | - Hongqi Sun
- School of Molecular Sciences, The University of Western Australia, Perth Western Australia 6009, Australia
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Austraia 5005, Australia
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11
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Zhou H, Zhong S, Chen J, Ren S, Ren W, Lai B, Guan X, Ma T, Wang S, Duan X. Overlooked Complexation and Competition Effects of Phenolic Contaminants in a Mn(II)/Nitrilotriacetic Acid/Peroxymonosulfate System: Inhibited Generation of Primary and Secondary High-Valent Manganese Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:19080-19089. [PMID: 39276341 DOI: 10.1021/acs.est.4c07370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
Abstract
Organic contaminants with lower Hammett constants are typically more prone to being attacked by reactive oxygen species (ROS) in advanced oxidation processes (AOPs). However, the interactions of an organic contaminant with catalytic centers and participating ROS are complex and lack an in-depth understanding. In this work, we observed an abnormal phenomenon in AOPs that the degradation of electron-rich phenolics, such as 4-methoxyphenol, acetaminophen, and 4-presol, was unexpectedly slower than electron-deficient phenolics in a Mn(II)/nitrilotriacetic acid/peroxymonosulfate (Mn(II)/NTA/PMS) system. The established quantitative structure-activity relationship revealed a volcano-type dependence of the degradation rates on the Hammett constants of pollutants. Leveraging substantial analytical techniques and modeling analysis, we concluded that the electron-rich phenolics would inhibit the generation of both primary (Mn(III)NTA) and secondary (Mn(V)NTA) high-valent manganese species through complexation and competition effects. Specifically, the electron-rich phenolics would form a hydrogen bond with Mn(II)/NTA/PMS through outer-sphere interactions, thereby reducing the electrophilic reactivity of PMS to accept the electron transfer from Mn(II)NTA, and slowing down the generation of reactive Mn(III)NTA. Furthermore, the generated Mn(III)NTA is more inclined to react with electron-rich phenolics than PMS due to their higher reaction rate constants (8314 ± 440, 6372 ± 146, and 6919 ± 31 M-1 s-1 for 4-methoxyphenol, acetaminophen, and 4-presol, respectively, as compared with 671 M-1 s-1 for PMS). Consequently, the two-stage inhibition impeded the generation of Mn(V)NTA. In contrast, the complexation and competition effects are insignificant for electron-deficient phenolics, leading to declined reaction rates when the Hammett constants of pollutants increase. For practical applications, such complexation and competition effects would cause the degradation of electron-rich phenolics to be more susceptible to water matrixes, whereas the degradation of electron-deficient phenolics remains largely unaffected. Overall, this study elucidated the intricate interaction mechanisms between contaminants and reactive metal species at both the electronic and kinetic levels, further illuminating their implications for practical treatment.
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Affiliation(s)
- Hongyu Zhou
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shuang Zhong
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Junwen Chen
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shiying Ren
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Wei Ren
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Xiaohong Guan
- Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Tianyi Ma
- School of Science, STEM College, RMIT University, Melbourne, VIC 3000, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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12
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Sun Z, Du M, Yao Z, Wang M, Gao P, Liu N, Liu Q, Kang S, Lai Q. Combined alkali-photocatalytic stimulation enables click microbial domestication for boosted ammonia nitrogen removal. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135417. [PMID: 39128151 DOI: 10.1016/j.jhazmat.2024.135417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 07/20/2024] [Accepted: 08/01/2024] [Indexed: 08/13/2024]
Abstract
Microbe-driven ammonia nitrogen removal plays a crucial role in the nitrogen cycle and wastewater treatment. However, the rational methods and mechanisms for boosting nitrogen conversion through microbial domestication are still limited. Herein, a combined alkali-photocatalytic stimulation strategy was developed to activate the Halomonas shizuishanensis DWK9 for efficient ammonia nitrogen removal. The strain DWK9 selected from saline-alkaline soil in Northwestern China possessed strong resistance to stress of saline-alkaline environment and free radicals, and was abundant in nitrogen conversion genes, thus is an ideal model for advanced microbial domestication. Bacterial in the combined alkali-photocatalytic stimulation group achieved a high ammonia nitrogen conversion rate of 67.5 %, 10 times outperforming the non-stimulated and single alkali/photocatalytic stimulation control groups. Morphology analysis revealed that the bacteria in the alkali-photocatalytic stimulated group formed a favorable structure for bioelectric transfer. Remarkably, the domesticated bacteria demonstrated improved electrochemical properties, including increased current capacity and lower overpotentials and impedance. Prokaryotic transcription genetic analysis together with qPCR analysis showed upregulation of denitrification-related metabolic pathway genes. A novel FAD dependent and NAD(P)H independent energy mode has been proposed. The universality and effectiveness of the as-developed combined alkali-photocatalytic microbial domestication strategy were further validated through indicator fish survival experiments. This work provides unprecedented degrees of freedom for the exploration of rational microbial engineering for optimized and controllable biogeochemical conversion.
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Affiliation(s)
- Zhen Sun
- East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200093, PR China
| | - Mingzhu Du
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China; Institute of Photochemistry and Photofunctional Materials (IPPM), University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Zongli Yao
- East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200093, PR China
| | - Ming Wang
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Pengcheng Gao
- East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200093, PR China
| | - Nian Liu
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China; Institute of Photochemistry and Photofunctional Materials (IPPM), University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Qinhong Liu
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Shifei Kang
- Department of Environmental Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China; Institute of Photochemistry and Photofunctional Materials (IPPM), University of Shanghai for Science and Technology, Shanghai 200093, PR China.
| | - Qifang Lai
- East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200093, PR China.
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13
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Zhong S, Zhou H, Zhu ZS, Ren S, Vongsvivut J, Zhou P, Duan X, Wang S. Overlooked Impacts of Alcohols in Electro-H 2O 2 and Fenton Chemistry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 39072735 DOI: 10.1021/acs.est.4c04921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
Alcohols are promising fuels for direct alcohol fuel cells and are common scavengers to identify reactive oxygen species (ROS) in electro-Fenton (EF) systems. However, the side impacts of alcohols on oxygen reduction reactions and ROS generation are controversial due to the complex interactions between electrodes and alcohol-containing electrolytes. Herein, we employed synchrotron-Fourier-transform infrared spectroscopy and electron paramagnetic resonance technologies to directly observe the changes of chemical species and electrochemical properties on the electrode surface. Our studies suggested that alcohols exhibited different limiting degrees on proton (H+) mass transfer toward the catalytic surface, following an order of methanol < ethanol < isopropanol < tert-butyl alcohol (TBA). In addition, the formation of hydrophobic TBA clusters at high concentrations (>400 mM) resulted in a significant reduction in ionic conductivity and an elevation in charge transfer resistance, which impedes H+ mass transfer and raises the energy barrier for 2e- oxygen reduction reaction processes. Moreover, the organic radical •CH2(CH3)2CH2OH produced by the interaction of Fe3+ and •OH with the alcohol in the EF system serves as a crucial intermediate in facilitating H2O2 regeneration, which complicates the quenching effect of alcohols on •OH identification. Therefore, it is recommended that methanol should be used as the scavenger instead of TBA and the concentration should be less than 400 mM in EF systems.
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Affiliation(s)
- Shuang Zhong
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Hongyu Zhou
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Zhong-Shuai Zhu
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Shiying Ren
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Jitraporn Vongsvivut
- Infrared Microspectroscopy Beamline, ANSTO-Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
| | - Peng Zhou
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia
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14
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Zhou H, He YL, Peng J, Duan X, Lu X, Zhang H, Liu Y, He CS, Xiong Z, Ma T, Wang S, Lai B. High-valent metal-oxo species transformation and regulation by co-existing chloride: Reaction pathways and impacts on the generation of chlorinated by-products. WATER RESEARCH 2024; 257:121715. [PMID: 38728779 DOI: 10.1016/j.watres.2024.121715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/25/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
High-valent metal-oxo species (HMOS) have been extensively recognized in advanced oxidation processes (AOPs) owing to their high selectivity and high chemical utilization efficiency. However, the interactions between HMOS and halide ions in sewage wastewater are complicated, leading to ongoing debates on the intrinsic reactive species and impacts on remediation. Herein, we prepared three typical HMOS, including Fe(IV), Mn(V)-nitrilotriacetic acid complex (Mn(V)NTA) and Co(IV) through peroxymonosulfate (PMS) activation and comparatively studied their interactions with Cl- to reveal different reactive chlorine species (RCS) and the effects of HMOS types on RCS generation pathways. Our results show that the presence of Cl- alters the cleavage behavior of the peroxide OO bond in PMS and prohibits the generation of Fe(IV), spontaneously promoting SO4•- production and its subsequent transformation to secondary radicals like Cl• and Cl2•-. The generation and oxidation capacity of Mn(V)NTA was scarcely influenced by Cl-, while Cl- would substantially consume Co(IV) and promote HOCl generation through an oxygen-transfer reaction, evidenced by density functional theory (DFT) and deuterium oxide solvent exchange experiment. The two-electron-transfer standard redox potentials of Fe(IV), Mn(V)NTA and Co(IV) were calculated as 2.43, 2.55 and 2.85 V, respectively. Due to the different reactive species and pathways in the presence of Cl-, the amounts of chlorinated by-products followed the order of Co(II)/PMS > Fe(II)/PMS > Mn(II)NTA/PMS. Thus, this work renovates the knowledge of halide chemistry in HMOS-based systems and sheds light on the impact on the treatment of salinity-containing wastewater.
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Affiliation(s)
- Hongyu Zhou
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Yong-Li He
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Jiali Peng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Xiaohui Lu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Heng Zhang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Yang Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Chuan-Shu He
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Zhaokun Xiong
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China
| | - Tianyi Ma
- School of Science, STEM College, RMIT University, Melbourne, VIC, 3000, Australia
| | - Shaobin Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China.
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15
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Wang X, Huang P, Zhang P, Wang C, He F, Sun H. Synthesis of stabilized zero-valent iron particles and role investigation of humic acid-Fe x+ shell in Fenton-like reactions and surface stability control. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133296. [PMID: 38141302 DOI: 10.1016/j.jhazmat.2023.133296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/07/2023] [Accepted: 12/14/2023] [Indexed: 12/25/2023]
Abstract
Herein, a novel humic acid-Fex+ complex-coated ZVI (HA-Fex+@ZVI) was synthesized and used to activate peroxydisulfate (PDS) for phenol degradation. The HA-Fex+ shell selectively reacted with PDS rather than O2, leading to the formation of modified ZVI with excellent surface stability in storage and ultraefficient PDS activation in advanced oxidation processes (AOPs). As a result, the phenol degradation and PDS activation efficiencies of HA-Fex+@ZVI/PDS were ∼14.4 and ∼1.8 times higher than those of ZVI/PDS, respectively. Mechanistic explorations revealed that the replacement of the HA-Fex+ shell relative to the original passivation layer of ZVI greatly changed the SO4•- generation pathway from a heterogeneous process to a homogeneous process, resulting from the slow exposure of Fe0 (generating dissolved Fe2+) and the depolymerized HA (enhancing the Fe3+/Fe2+ cycle). Based on experimental analysis and density functional theory (DFT) calculations, the Fe3+ in HA-Fex+ could be reduced to Fe2+ by PDS, resulting in the disintegration of the HA-Fex+ shell and exposure of Fe0 core active sites. Furthermore, compared to similar catalysts synthesized with commercial HA and traditional chemicals, HA-Fex+@ZVI synthesized with multiple waste biomasses exhibited better performance. This research provides valuable insights for designing ZVI-based catalysts with excellent storage stability and ultraefficient PDS catalytic activity for AOPs.
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Affiliation(s)
- Xinhua Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Peng Huang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Peng Zhang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China.
| | - Cuiping Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China
| | - Feng He
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 300350, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, Tianjin 300350, China.
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16
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Wang Z, Jia X, Sun W, Wang J, Li C, Zhao Q, Li Y, Tian S. Persulfate-based remediation of organic-contaminated soil: Insight into the impacts of natural iron ions and humic acids with complexation/redox functionality. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167177. [PMID: 37730037 DOI: 10.1016/j.scitotenv.2023.167177] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/19/2023] [Accepted: 09/16/2023] [Indexed: 09/22/2023]
Abstract
The use of persulfate (PDS) for in-situ chemical oxidation of organic contaminants in soils has garnered significant interest. However, the presence of naturally occurring iron-containing substances and humic acid (HA) in environmental compartments can potentially influence the effectiveness of soil remediation. Thus, this study aimed to investigate the role of key functional groups (adjacent phenolic hydroxyl (Ar-OH) and carboxyl groups (-COOH)) in HA that interact with iron. Modified HAs were used to confirm the significance of these moieties in iron interaction. Additionally, the mechanism by which specific functional groups affect Fe complexation and redox was explored through contaminant degradation experiments, pH-dependent investigations, HA by-products analysis, and theoretical calculations using six specific hydroxybenzoic acids as HA model compounds. The results showed a strong positive correlation between accessible Ar-OH and -COOH groups and Fe3+/Fe2+ redox. This was attributed to HA undergoing a conversion process to a semiquinone-containing radical form, followed by a quinone-containing intermediate, while Fe3+ acted as an electron shuttle between HA and PDS, with Fe3+ leaching facilitated by generated H+ ions. Although the stability of HA-Fe3+ complexes with -COOH as the primary binding sites was slightly higher at neutral/alkaline conditions compared to acidic conditions, the buffering properties of the soil and acidification of the PDS solution played a greater role in determining the Ar-OH groups as the primary binding site in most cases. Therefore, the availability of Ar-OH groups on HA created a trade-off between accelerated Fe3+/Fe2+ redox and quenching reactions. Appropriate HA and iron contents were found to favor PDS activation, while excessive HA could lead to intense competition for reactive oxygen species (ROS), inhibiting pollutant degradation in soil. The findings provide valuable insights into the interaction of HA and Fe-containing substances in persulfate oxidation, offering useful information for the development of in-situ remediation strategies for organic-contaminated soil.
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Affiliation(s)
- Zhenzhen Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Xiaolei Jia
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Wei Sun
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Jianfei Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Chen Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China.
| | - Qun Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Yingjie Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
| | - Senlin Tian
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan Province 650500, China
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17
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Li K, Ma S, Zou C, Latif J, Jiang Y, Ni Z, Shen S, Feng J, Jia H. Unrecognized Role of Organic Acid in Natural Attenuation of Pollutants by Mackinawite (FeS): The Significance of Carbon-Center Free Radicals. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20871-20880. [PMID: 38029317 DOI: 10.1021/acs.est.3c07473] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Organic acid is prevalent in underground environments and, against the backdrop of biogeochemical cycles on Earth, holds significant importance in the degradation of contaminants by redox-active minerals. While earlier studies on the role of organic acid in the generation of reactive oxygen species (ROS) primarily concentrated on electron shuttle or ligand effects, this study delves into the combined impacts of organic acid decomposition and Mackinawite (FeS) oxidation in contaminant transformation under dark aerobic conditions. Using bisphenol A (BPA) as a model, our findings showed that oxalic acid (OA) notably outperforms other acids in enhancing BPA removal, attaining a rate constant of 0.69 h-1. Mass spectrometry characterizations, coupled with anaerobic treatments, advocate for molecule-O2 activation as the principal mechanism behind pollutant transformation. Comprehensive results unveiled that carbon center radicals, initiated by hydroxyl radical (•OH) attack, serve as the primary agents in pollutant oxidation, accounting for at least 93.6% of the total •OH generation. This dynamic, driven by the decomposition of organic acids and the concurrent formation of carbon-centered radicals, ensures a steady supply of electrons for ROS generation. The obtained information highlights the importance of OA decomposition in the natural attenuation of pollutants and offers innovative strategies for FeS and organic acid-coupled decontamination.
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Affiliation(s)
- Kai Li
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Shuanglong Ma
- College of Resources and Environmental Sciences, Henan Agricultural University, Zhengzhou 450002, China
| | - Chuningrui Zou
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Junaid Latif
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Yuanren Jiang
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Zheng Ni
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Siqi Shen
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
| | - Jinpeng Feng
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, Guangxi, China
| | - Hanzhong Jia
- Key Laboratory of Low-carbon Green Agriculture in Northwestern China, Ministry of Agriculture and Rural Affairs, College of Natural Resources and Environment, Northwest A&F University, 3# Taicheng Road, Yangling 712100, China
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Wang A, Liu X, Wen Y, Qiu Y, Lv S, Xu M, Meng C, Wang K, Lin F, Xie S, Zhuo Q. Single-atom Zr embedded Ti 4O 7 anode coupling with hierarchical CuFe 2O 4 particle electrodes toward efficient electrooxidation of actual pharmaceutical wastewater. WATER RESEARCH 2023; 245:120596. [PMID: 37717331 DOI: 10.1016/j.watres.2023.120596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/21/2023] [Accepted: 09/07/2023] [Indexed: 09/19/2023]
Abstract
Electrocatalytic oxidation is commonly restricted by low degradation efficiency, slow mass transfer, and high energy consumption. Herein, a synergetic electrocatalysis system was developed for removal of various drugs, i.e., atenolol, florfenicol, and diclofenac sodium, as well as actual pharmaceutical wastewater, where the newly-designed single-atom Zr embedded Ti4O7 (Zr/Ti4O7) and hierarchical CuFe2O4 (CFO) microspheres were used as anode and microelectrodes, respectively. In the optimal reaction system, the degradation efficiencies of 40 mg L-1 atenolol, florfenicol, and diclofenac sodium could achieve up to 98.8%, 93.4%, and 85.5% in 120 min with 0.1 g L-1 CFO at current density of 25 mA cm-2. More importantly, in the flow-through reactor, the electrooxidation lasting for 150 min could reduce the COD of actual pharmaceutical wastewater from 432 to 88.6 mg L-1, with a lower energy consumption (25.67 kWh/m3). Meanwhile, the electrooxidation system maintained superior stability and environmental adaptability. DFT theory calculations revealed that the excellent performance of this electrooxidation system could be ascribed to the striking features of the reduced reaction energy barrier by single-atom Zr loading and abundant oxygen vacancies on the Zr/Ti4O7 surface. Moreover, the characterization and experimental results demonstrated that the CFO unique hierarchical structure and synergistic effect between electrodes were also the important factors that could improve the system performance. The findings shed light on the single-atom material design for boosting electrochemical oxidation performance.
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Affiliation(s)
- Anqi Wang
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Xingxin Liu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; School of Civil Engineering, University of South China, Hengyang 421001, China
| | - Yukai Wen
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Yongfu Qiu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China.
| | - Sihao Lv
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Manman Xu
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Cuilin Meng
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Kai Wang
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Fengjie Lin
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Shuibo Xie
- School of Civil Engineering, University of South China, Hengyang 421001, China.
| | - Qiongfang Zhuo
- Research Center for Eco-environmental Engineering, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, China.
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