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Zhang M, Wu J, Tang W, Mei J, Zhang Q, Wu J, Xu D, Liu Z, Hao F, Sheng L, Xu H. Inverted loading strategy regulates the Mn-O V-Ce sites for efficient fenton-like catalysis. J Colloid Interface Sci 2024; 668:303-318. [PMID: 38678886 DOI: 10.1016/j.jcis.2024.04.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
Regulating interfacial active sites to improve peroxymonosulfate (PMS) activation efficiency is a hot topic in the heterogeneous catalysis field. In this study, we develop an inverted loading strategy to engineer asymmetric Mn-OV-Ce sites for PMS activation. Mn3O4@CeO2 prepared by loading CeO2 nanoparticles onto Mn3O4 nanorods exhibits the highest catalytic activity and stability, which is due to the formation of more oxygen vacancies (OV) at the Mn-OV-Ce sites, and the surface CeO2 layer effectively inhibits corrosion by preventing the loss of manganese ion active species into the solution. In situ characterizations and density functional theory (DFT) studies have revealed effective bimetallic redox cycles at asymmetric Mn-OV-Ce active sites, which promote surface charge transfer, enhance the adsorption reaction activity of active species toward pollutants, and favor PMS activation to generate (•OH, SO4•-, O2•- and 1O2) active species. This study provides a brand-new perspective for engineering the interfacial behavior of PMS activation.
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Affiliation(s)
- Mengyu Zhang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Jing Wu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Wen Tang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Jinfei Mei
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Qian Zhang
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Junrong Wu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Deyun Xu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Zhaodi Liu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China.
| | - Fuying Hao
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Liangquan Sheng
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China
| | - Huajie Xu
- School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui 236037, PR China.
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2
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He B, Gu Y, Yang Z, Ling Z, Hu H, Chen Z. Bridge-oxygen bonding modulates Ru single atoms for peroxymonosulfate activation: Importance of high-valent Ru species and 1O 2. J Colloid Interface Sci 2024; 676:435-444. [PMID: 39033678 DOI: 10.1016/j.jcis.2024.07.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/08/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
The application of single-atom catalysts (SACs) to advanced oxidation processes (AOPs) based on peroxymonosulfate (PMS) has attracted considerable attention. However, the catalytic pathways and mechanisms underlying these processes remain unclear. In this study, NiFe-LDH was synthesized and single Ru atoms were stably loaded onto it by forming Ru-O-M (M=Ni or Fe) bonds (Ru@NiFe-LDH). This was demonstrated using high-angle annular dark-field scanning TEM (HAADF-STEM) and X-ray absorption fine structure spectra (XANES). The Ru@NiFe-LDH/PMS system showed a high catalytic reactivity (100 % sulfamethoxazole degradation in only 30 min), high stability (97 % reactivity was maintained after continuous operation for 400 min), and wide pH suitability (working pH range 3-11) for AOPs. The crucial roles of the high-valent species (Ru(V) = O) and 1O2 in this reaction were verified. Density functional theory (DFT) calculations revealed that electron transfer produced a positively charged Ru. This enhances the adsorption of negatively charged PMS anions onto the Ru monoatomic sites, thereby, causing the formation of Ru-PMS* complexes. This study implies that the structure-function relationship between organic compounds and SACs plays a significant role in PMS-based AOPs, and provides a comprehensive mechanism for the role of high-valent species in heterogeneous Fenton-like systems.
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Affiliation(s)
- Bo He
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Yanling Gu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
| | - Zhongzhu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhaoxiang Ling
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Huamin Hu
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, PR China
| | - Zhaoyong Chen
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, PR China.
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3
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Gu C, Zhang Y, He P, Gan M, Zhu J, Yin H. Bioinspired axial S-coordinated single-atom cobalt catalyst to efficient activate peroxymonosulfate for selective high-valent Co-Oxo species generation. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134515. [PMID: 38703676 DOI: 10.1016/j.jhazmat.2024.134515] [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: 02/26/2024] [Revised: 04/22/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024]
Abstract
The efficient activation and selective high-valent metal-oxo (HVMO) species generation remain challenging for peroxymonosulfate (PMS)-based advanced oxidation processes (PMS-AOPs) in water purification. The underlying mechanism of the activation pathway is ambiguous, leading to a massive dilemma in the control and regulation of HVMO species generation. Herein, bioinspired by the bio-oxidase structure of cytochrome P450, the axial coordination strategy was adopted to tailor a single-atom cobalt catalyst (CoN4S-CB) with an axial S coordination. CoN4S-CB high-selectively generated high-valent Co-Oxo species (Co(IV)=O) via PMS activation. Co(IV)=O demonstrated an ingenious oxygen atom transfer (OAT) reaction to achieve the efficient degradation of sulfamethoxazole (SMX), and this allowed robust operation in various complex environments. The axial S coordination modulated the 3d orbital electron distribution of the Co atom. Density functional theory (DFT) calculation revealed that the axial S coordination decreased the energy barrier for PMS desorption and lowered the free energy change (ΔG) for Co(IV)=O generation. CoN4S-PMS* had a narrow d-band close to the Fermi level, which enhanced charge transfer to accelerate the cleavage of O-O and O-H bonds in PMS. This work provides a broader perspective on the activator design with natural enzyme structure-like active sites to efficient activate PMS for selective HVMO species generation.
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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
| | - Yaqin Zhang
- College of Food Science and Technology, Laboratory of Micro & Nano Biosensing Technology in Food Safety, Hunan Agricultural University, Changsha 410128, China; Hunan Provincial Key Laboratory of Food Science and Biotechnology, Changsha 410128, 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
| | - 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.
| | - 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.
| | - 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
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4
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Tiwari JN, Kumar K, Safarkhani M, Umer M, Vilian ATE, Beloqui A, Bhaskaran G, Huh YS, Han YK. Materials Containing Single-, Di-, Tri-, and Multi-Metal Atoms Bonded to C, N, S, P, B, and O Species as Advanced Catalysts for Energy, Sensor, and Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403197. [PMID: 38946671 DOI: 10.1002/advs.202403197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/08/2024] [Indexed: 07/02/2024]
Abstract
Modifying the coordination or local environments of single-, di-, tri-, and multi-metal atom (SMA/DMA/TMA/MMA)-based materials is one of the best strategies for increasing the catalytic activities, selectivity, and long-term durability of these materials. Advanced sheet materials supported by metal atom-based materials have become a critical topic in the fields of renewable energy conversion systems, storage devices, sensors, and biomedicine owing to the maximum atom utilization efficiency, precisely located metal centers, specific electron configurations, unique reactivity, and precise chemical tunability. Several sheet materials offer excellent support for metal atom-based materials and are attractive for applications in energy, sensors, and medical research, such as in oxygen reduction, oxygen production, hydrogen generation, fuel production, selective chemical detection, and enzymatic reactions. The strong metal-metal and metal-carbon with metal-heteroatom (i.e., N, S, P, B, and O) bonds stabilize and optimize the electronic structures of the metal atoms due to strong interfacial interactions, yielding excellent catalytic activities. These materials provide excellent models for understanding the fundamental problems with multistep chemical reactions. This review summarizes the substrate structure-activity relationship of metal atom-based materials with different active sites based on experimental and theoretical data. Additionally, the new synthesis procedures, physicochemical characterizations, and energy and biomedical applications are discussed. Finally, the remaining challenges in developing efficient SMA/DMA/TMA/MMA-based materials are presented.
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Affiliation(s)
- Jitendra N Tiwari
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 100715, Republic of Korea
| | - Krishan Kumar
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Danostia-San Sebastian, 20018, Spain
| | - Moein Safarkhani
- Department of Biological Sciences and Bioengineering, Nano Bio High-Tech Materials Research Center, Inha University, Incheon, 22212, Republic of Korea
- School of Chemistry, Damghan University, Damghan, 36716-45667, Iran
| | - Muhammad Umer
- Bernal Institute, Department of Chemical Sciences, University of Limerick, Limerick, V94 T9PX, Republic of Ireland
| | - A T Ezhil Vilian
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 100715, Republic of Korea
| | - Ana Beloqui
- POLYMAT, Applied Chemistry Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Danostia-San Sebastian, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
| | - Gokul Bhaskaran
- Department of Biological Sciences and Bioengineering, Nano Bio High-Tech Materials Research Center, Inha University, Incheon, 22212, Republic of Korea
| | - Yun Suk Huh
- Department of Biological Sciences and Bioengineering, Nano Bio High-Tech Materials Research Center, Inha University, Incheon, 22212, Republic of Korea
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 100715, Republic of Korea
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5
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Wang Z, Yi Z, Wong LW, Tang X, Wang H, Wang H, Zhou C, He Y, Xiong W, Wang G, Zeng G, Zhao J, Xu P. Oxygen Doping Cooperated with Co-N-Fe Dual-Catalytic Sites: Synergistic Mechanism for Catalytic Water Purification within Nanoconfined Membrane. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404278. [PMID: 38743014 DOI: 10.1002/adma.202404278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/05/2024] [Indexed: 05/16/2024]
Abstract
Atom-site catalysts, especially for graphitic carbon nitride-based catalysts, represents one of the most promising candidates in catalysis membrane for water decontamination. However, unravelling the intricate relationships between synthesis-structure-properties remains a great challenge. This study addresses the impacts of coordination environment and structure units of metal central sites based on Mantel test, correlation analysis, and evolution of metal central sites. An optimized unconventional oxygen doping cooperated with Co-N-Fe dual-sites (OCN Co/Fe) exhibits synergistic mechanism for efficient peroxymonosulfate activation, which benefits from a significant increase in charge density at the active sites and the regulation in the natural population of orbitals, leading to selective generation of SO4 •-. Building upon these findings, the OCN-Co/Fe/PVDF composite membrane demonstrates a 33 min-1 ciprofloxacin (CIP) rejection efficiency and maintains over 96% CIP removal efficiency (over 24 h) with an average permeance of 130.95 L m-2 h-1. This work offers a fundamental guide for elucidating the definitive origin of catalytic performance in advance oxidation process to facilitate the rational design of separation catalysis membrane with improved performance and enhanced stability.
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Affiliation(s)
- Ziwei Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077, China
| | - Zhigang Yi
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Lok Wing Wong
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077, China
| | - Xiang Tang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, P. R. China
| | - Hou Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Han Wang
- School of Metallurgy and Environment, Central South University, Changsha, Hunan, 410083, China
| | - Chengyun Zhou
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Yangzhuo He
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Weiping Xiong
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Guangfu Wang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077, China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha, 410082, P. R. China
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6
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Meng Y, Liu YQ, Wang C, Si Y, Wang YJ, Xia WQ, Liu T, Cao X, Guo ZY, Chen JJ, Li WW. Nanoconfinement steers nonradical pathway transition in single atom fenton-like catalysis for improving oxidant utilization. Nat Commun 2024; 15:5314. [PMID: 38906879 PMCID: PMC11192908 DOI: 10.1038/s41467-024-49605-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 06/06/2024] [Indexed: 06/23/2024] Open
Abstract
The introduction of single-atom catalysts (SACs) into Fenton-like oxidation promises ultrafast water pollutant elimination, but the limited access to pollutants and oxidant by surface catalytic sites and the intensive oxidant consumption still severely restrict the decontamination performance. While nanoconfinement of SACs allows drastically enhanced decontamination reaction kinetics, the detailed regulatory mechanisms remain elusive. Here, we unveil that, apart from local enrichment of reactants, the catalytic pathway shift is also an important cause for the reactivity enhancement of nanoconfined SACs. The surface electronic structure of cobalt site is altered by confining it within the nanopores of mesostructured silica particles, which triggers a fundamental transition from singlet oxygen to electron transfer pathway for 4-chlorophenol oxidation. The changed pathway and accelerated interfacial mass transfer render the nanoconfined system up to 34.7-fold higher pollutant degradation rate and drastically raised peroxymonosulfate utilization efficiency (from 61.8% to 96.6%) relative to the unconfined control. It also demonstrates superior reactivity for the degradation of other electron-rich phenolic compounds, good environment robustness, and high stability for treating real lake water. Our findings deepen the knowledge of nanoconfined catalysis and may inspire innovations in low-carbon water purification technologies and other heterogeneous catalytic applications.
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Affiliation(s)
- Yan Meng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China
| | - Yu-Qin Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
| | - Chao Wang
- National Synchrotron Radiation Laboratory, University of Science & Technology of China, Hefei, China
| | - Yang Si
- Kunming Institute of Physics, Kunming, China
| | - Yun-Jie Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China
| | - Wen-Qi Xia
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China
| | - Tian Liu
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China
| | - Xu Cao
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
| | - Zhi-Yan Guo
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China.
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China.
| | - Jie-Jie Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China
| | - Wen-Wei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, China.
- Sustainable Energy and Environmental Materials Innovation Center, Suzhou Institute for Advanced Research, University of Science & Technology of China, Suzhou, China.
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7
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Fang Z, Zhou Z, Zeng Z, Xia YG, Liu J, Hu B, Li K, Li JH, Lu Q. Revealing the Synergistic Effect of Cation and Anion Vacancies on Enhanced Fenton-Like Reaction: The Electron Density Modulation of O 2p-Co 3d Bands. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402748. [PMID: 38898734 DOI: 10.1002/smll.202402748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/27/2024] [Indexed: 06/21/2024]
Abstract
Defect engineering is considered as a flexible and effective mean to improve the performance of Fenton-like reactions. Herein, a simple method is employed to synthesize Co3O4 catalysts with Co-O vacancy pairs (VP) for peroxymonosulfate (PMS) activation. Multi-scaled characterization, experimental, and simulation results jointly revealed that the cation vacancies-VCo contributed to enhanced conductivity and anion vacancies-VO provided a new active center for the 1O2 generation. Co3O4-VP can optimize the O 2p and Co 3d bands with the strong assistance of synergistic double vacancies to reduce the reaction energy barrier of the "PMS → Co(IV) = O → 1O2" pathway, ultimately triggering the stable transition of mechanism. Co3O4-VP catalysts with radical-nonradical collaborative mechanism achieve the synchronous improvement of activity and stability, and have good environmental robustness to favor water decontamination applications. This result highlights the possibility of utilizing anion and cation vacancy engineering strategies to rational design Co3O4-based materials widely used in catalytic reactions.
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Affiliation(s)
- Zhimo Fang
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Zhou Zhou
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Zepeng Zeng
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Yuan-Gu Xia
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Ji Liu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Bin Hu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Kai Li
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Ji-Hong Li
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
| | - Qiang Lu
- National Engineering Research Center of New Energy Power Generation, North China Electric Power University, Beijing, 102206, China
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8
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Tang X, Dong T, Wang M, Ma S, Xu S, Wang J, Gao B, Huang Y, Yang Q, Hua D, Zhan S. From waste corn straw to graphitic porous carbon: A trade-off between specific surface area and graphitization degree for efficient peroxydisulfate activation. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134422. [PMID: 38677118 DOI: 10.1016/j.jhazmat.2024.134422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/14/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
Electron transfer pathways have been verified as overriding regimes when peroxydisulfate (PDS) was activated by porous carbon. The incorporation of graphitic structure into carbon matrix was favorable to the rapid electron transfer, but excessive graphitization would deteriorate the specific surface area (SSA), weakening the catalytic performance. The reasonable trade-off between SSA and graphitization degree was necessary and challenging for the preparation of efficient carbon based PS-activators. Herein, a series of graphitic porous carbon with discrepant SSA and graphitic structure were fabricated. The incorporation of graphitization tracks into ultra-thin edges on porous carbon film was verified by multifarious structural characterization. After trade-off, the optimum catalyst exhibited superior catalytic performance with degradation rate constant (kobs) exceeding that of ungraphitized precursor by up to 16.0 times. Mechanistic investigations substantiated that the sufficient SSA of catalyst provided favorable conditions for its affinity towards PDS and sulfadiazine (SDZ), resulting in the formation of PDS* complexes and SDZ adsorption, while the appropriate graphitization degree ensured the reinforced electron transfer rate, which collectively accelerated SDZ oxidation through electron-transfer pathway. The multivariate linear regression model linking kobs to SSA and graphitization degree was established providing basis to construct efficient catalysts for PDS activation.
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Affiliation(s)
- Xiaodan Tang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Tingting Dong
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Mengya Wang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Shuanglong Ma
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China.
| | - Shengjun Xu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Haidian District, Beijing 100085, PR China
| | - Jingzhen Wang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Boqiang Gao
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Yan Huang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Qiuyun Yang
- College of Agronomy, Henan Agricultural University, Zhengzhou 450002, PR China
| | - Dangling Hua
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, PR China.
| | - Sihui Zhan
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300071, PR China
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9
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Fu BG, Zhou X, Lu Y, Quan WZ, Li C, Cheng L, Xiao X, Yu YY. Interfacial OOH* mediated Fe(II) regeneration on the single atom Co-N-C catalyst for efficient Fenton-like processes. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134214. [PMID: 38603908 DOI: 10.1016/j.jhazmat.2024.134214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/17/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
Fe(II) regeneration is decisive for highly efficient H2O2-based Fenton-like processes, but the role of cobalt-containing reactive sites in promoting Fe(II) regeneration was overlooked. Herein, a single atom Co-N-C catalyst was employed in Fe(II)/H2O2 system to promote the degradation of diverse organic contaminants. The EPR and quenching experiments indicated Co-N-C significantly enhanced the generation of superoxide species, and accelerated hydroxyl radical generation for pollutant degradation. The electrochemical and surface composition analyses demonstrated the enhanced H2O2 activation and Fe(III)/Fe(II) recycling on the catalyst. Furthermore, in-situ Raman characterization with shell-isolated gold nanoparticles was employed to visualize the interfacial reactive intermediates and their time-resolved interaction. The accumulation of interfacial CoOOH* was confirmed when Co-N-C activated H2O2 alone, but it rapidly transformed into FeOOH* upon Fe(II) addition. Besides, the temporal variation of OOH* intermediates and the relative intensity of Co(III)-O and Co(IV)=O peaks depicted the dynamic interaction of reactive intermediates along the H2O2 consumption. With this basis, we proposed a mechanism of interfacial OOH* mediated Fe(II) regeneration, which overcame the kinetical limitation of Fe(II)/H2O2 system. Therefore, this study provided a primary effort to elucidate the overlooked role of interfacial CoOOH* in the Fenton-like processes, which may inspire the design of more efficient catalysts.
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Affiliation(s)
- Bao-Gang Fu
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Xiangtong Zhou
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Yilin Lu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Wen-Zhu Quan
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Chunmei Li
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Liang Cheng
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Xiang Xiao
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Yang-Yang Yu
- School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China.
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10
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Ma W, Ren X, Li J, Wang S, Wei X, Wang N, Du Y. Advances in Atomically Dispersed Metal and Nitrogen Co-Doped Carbon Catalysts for Advanced Oxidation Technologies and Water Remediation: From Microenvironment Modulation to Non-Radical Mechanisms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308957. [PMID: 38111984 DOI: 10.1002/smll.202308957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/25/2023] [Indexed: 12/20/2023]
Abstract
Atomically dispersed metal and nitrogen co-doped carbon catalysts (M-N-C) have been attracting tremendous attentions thanks to their unique MNx active sites and fantastic catalytic activities in advanced oxidation technologies (AOTs) for water remediation. However, precisely tailoring the microenvironment of active sites at atomic level is still an intricate challenge so far, and understanding of the non-radical mechanisms in persulfate activation exists many uncertainties. In this review, latest developments on the microenvironment modulation strategies of atomically dispersed M-N-C catalysts including regulation of central metal atoms, regulation of coordination numbers, regulation of coordination heteroatoms, and synergy between single-atom catalysts (SACs) with metal species are systematically highlighted and discussed. Afterwards, progress and underlying limitations about the typical non-radical pathways from production of singlet oxygen, electron transfer mechanism to generation of high-valent metal species are well demonstrated to inspire intrinsic insights about the mechanisms of M-N-C/persulfate systems. Lastly, perspectives for the remaining challenges and opportunities about the further development of carbon-based SACs in environment remediation are also pointed out. It is believed that this review will be much valuable for the further design of active sites in M-N-C/persulfate catalytic systems and promote the wide application of SACs in various fields.
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Affiliation(s)
- Wenjie Ma
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Xiaohui Ren
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Jiahao Li
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Shuai Wang
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Xinyu Wei
- College of Textiles and Clothing, Yancheng Institute of Technology, Yancheng, 224051, P. R. China
| | - Na Wang
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Yunchen Du
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
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11
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Zhu ZS, Wang Y, Duan X, Wang P, Zhong S, Ren S, Xu X, Gao B, Vongsvivut JP, Wang S. Atomic-Level Engineered Cobalt Catalysts for Fenton-Like Reactions: Synergy of Single Atom Metal Sites and Nonmetal-Bonded Functionalities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2401454. [PMID: 38685794 DOI: 10.1002/adma.202401454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/12/2024] [Indexed: 05/02/2024]
Abstract
Single atom catalysts (SACs) are atomic-level-engineered materials with high intrinsic activity. Catalytic centers of SACs are typically the transition metal (TM)-nonmetal coordination sites, while the functions of coexisting non-TM-bonded functionalities are usually overlooked in catalysis. Herein, the scalable preparation of carbon-supported cobalt-anchored SACs (CoCN) with controlled Co─N sites and free functional N species is reported. The role of metal- and nonmetal-bonded functionalities in the SACs for peroxymonosulfate (PMS)-driven Fenton-like reactions is first systematically studied, revealing their contribution to performance improvement and pathway steering. Experiments and computations demonstrate that the Co─N3C coordination plays a vital role in the formation of a surface-confined PMS* complex to trigger the electron transfer pathway and promote kinetics because of the optimized electronic state of Co centers, while the nonmetal-coordinated graphitic N sites act as preferable pollutant adsorption sites and additional PMS activation sites to accelerate electron transfer. Synergistically, CoCN exhibits ultrahigh activity in PMS activation for p-hydroxybenzoic acid oxidation, achieving complete degradation within 10 min with an ultrahigh turnover frequency of 0.38 min-1, surpassing most reported materials. These findings offer new insights into the versatile functions of N species in SACs and inspire rational design of high-performance catalysts in complicated heterogeneous systems.
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Affiliation(s)
- Zhong-Shuai Zhu
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Yantao Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaoguang Duan
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Pengtang Wang
- 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
| | - Shiying Ren
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, P. R. China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, P. R. China
| | - Jitraporn Pimm Vongsvivut
- Infrared Microspectroscopy (IRM) Beamline, ANSTO Australian Synchrotron, Clayton, VIC, 3168, Australia
| | - Shaobin Wang
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
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12
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Bi G, Ding R, Song J, Luo M, Zhang H, Liu M, Huang D, Mu Y. Discriminating the Active Ru Species Towards the Selective Generation of Singlet Oxygen from Peroxymonosulfate: Nanoparticles Surpass Single-Atom Catalysts. Angew Chem Int Ed Engl 2024; 63:e202401551. [PMID: 38403815 DOI: 10.1002/anie.202401551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 02/23/2024] [Indexed: 02/27/2024]
Abstract
Singlet oxygen (1O2) is an exceptional reactive oxygen species in advanced oxidation processes for environmental remediation. Despite single-atom catalysts (SACs) representing the promising candidate for the selective generation of 1O2 from peroxymonosulfate (PMS), the necessity to meticulously regulate the coordination environment of metal centers poses a significant challenge in the precisely-controlled synthetic method. Another dilemma to SACs is their high surface free energy, which results in an inherent tendency for the surface migration and aggregation of metal atoms. We here for the first time reported that Ru nanoparticles (NPs) synthesized by the facile pyrolysis method behave as robust Fenton-like catalysts, outperforming Ru SACs, towards efficient activation of PMS to produce 1O2 with nearly 100 % selectivity, remarkably improving the degradation efficiency for target pollutants. Density functional theory calculations have unveiled that the boosted PMS activation can be attributed to two aspects: (i) enhanced adsorption of PMS molecules onto Ru NPs, and (ii) decreased energy barriers by offering adjacent sites for promoted dimerization of *O intermediates into adsorbed 1O2. This study deepens the current understanding of PMS chemistry, and sheds light on the design and optimization of Fenton-like catalysts.
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Affiliation(s)
| | - Rongrong Ding
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Junsheng Song
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Mengjie Luo
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Haotian Zhang
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Meng Liu
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Dahong Huang
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Activation, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei, Anhui, 230026, P. R. China
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13
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Zhen J, Miao L, Lin Z, Sun J, Yan H, Ying Y, Wu Z, Song W, Lv W, Song C, Yao Y. Separation and reutilization of heavy metal ions in wastewater assisted by p-BN adsorbent. CHEMOSPHERE 2024; 354:141737. [PMID: 38499078 DOI: 10.1016/j.chemosphere.2024.141737] [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: 02/01/2024] [Revised: 03/12/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Extracting heavy metal ions from wastewater has significant implications for both environmental remediation and resource preservation. However, the conventional adsorbents still suffer from incomplete ion removal and low utilization efficiency of the recovered metals. Herein, we present an extraction and reutilization method assisted by porous boron nitride (p-BN) containing high-density N atoms for metal recovery with simultaneous catalyst formation. The p-BN exhibits stable and efficient metal adsorption performance, particularly for ultra-trace-level water purification. The distribution coefficients towards Pb2+, Cd2+, Co2+ and Fe3+ can exceed 106 mL g-1 and the residual concentrations that reduced from 1 mg L-1 to 0.8-1.3 μg L-1 are much lower than the acceptable limits in drinking water standards of World Health Organization. Meanwhile, the used p-BN after Co ion adsorption can be directly adopted as a high-efficiency catalyst for activating peroxymonosulfate (PMS) in organic pollutant degradation without additional post-treatment, avoiding the secondary metal pollution and the problems of neglected manpower and energy consumption. Moreover, a flow-through multistage utilization system assisted by p-BN/polyvinylidene fluoride (PVDF) membrane is constructed for achieving both metal ion separation and reutilization in the removal of organic pollutants, providing a new avenue for sustainable wastewater remediation.
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Affiliation(s)
- Jianzheng Zhen
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lingshan Miao
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhilong Lin
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jiahao Sun
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Haoxiang Yan
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yunzhan Ying
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zenglong Wu
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wenkai Song
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Weiyang Lv
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing, 312000, China.
| | - Changsheng Song
- Key Laboratory of Optical Field Manipulation of Zhejiang Province, Department of Physics, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yuyuan Yao
- National Engineering Lab of Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou, 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing, 312000, China
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14
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Jiang Y, Gao K, Li Y, Chen Y, Cai X, Wang D. Ni introduction induced non-radical degradation of bisphenol A in spinel ferrite/H 2O 2 systems. Chem Commun (Camb) 2024; 60:3158-3161. [PMID: 38407404 DOI: 10.1039/d3cc06100k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Herein, we achieved reactive oxygen species manipulation using transition metal spinel ferrites (NixCo1-xFe2O4, x = 0, 0.5, 1) as Fenton-like agents. Specifically, NiFe2O4 mainly produced 1O2 and high-valence metals, while CoFe2O4 mainly produced ˙OH, from H2O2 activation. With bisphenol A as a model pollutant, the NiFe2O4/H2O2 system exhibited good resistance to ion interference.
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Affiliation(s)
- Yilan Jiang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
| | - Keyi Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
| | - Yingying Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
| | - Yuanyuan Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
| | - Xinyang Cai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
| | - Dawei Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, P. R. China.
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15
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Su R, Gao Y, Chen L, Chen Y, Li N, Liu W, Gao B, Li Q. Utilizing the oxygen-atom trapping effect of Co 3O 4 with oxygen vacancies to promote chlorite activation for water decontamination. Proc Natl Acad Sci U S A 2024; 121:e2319427121. [PMID: 38442175 PMCID: PMC10945781 DOI: 10.1073/pnas.2319427121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/30/2024] [Indexed: 03/07/2024] Open
Abstract
Heterogeneous high-valent cobalt-oxo [≡Co(IV)=O] is a widely focused reactive species in oxidant activation; however, the relationship between the catalyst interfacial defects and ≡Co(IV)=O formation remains poorly understood. Herein, photoexcited oxygen vacancies (OVs) were introduced into Co3O4 (OV-Co3O4) by a UV-induced modification method to facilitate chlorite (ClO2-) activation. Density functional theory calculations indicate that OVs result in low-coordinated Co atom, which can directionally anchor chlorite under the oxygen-atom trapping effect. Chlorite first undergoes homolytic O-Cl cleavage and transfers the dissociated O atom to the low-coordinated Co atom to form reactive ≡Co(IV)=O with a higher spin state. The reactive ≡Co(IV)=O rapidly extracts one electron from ClO2- to form chlorine dioxide (ClO2), accompanied by the Co atom returning a lower spin state. As a result of the oxygen-atom trapping effect, the OV-Co3O4/chlorite system achieved a 3.5 times higher efficiency of sulfamethoxazole degradation (~0.1331 min-1) than the pristine Co3O4/chlorite system. Besides, the refiled OVs can be easily restored by re-exposure to UV light, indicating the sustainability of the oxygen atom trap. The OV-Co3O4 was further fabricated on a polyacrylonitrile membrane for back-end water purification, achieving continuous flow degradation of pollutants with low cobalt leakage. This work presents an enhancement strategy for constructing OV as an oxygen-atom trapping site in heterogeneous advanced oxidation processes and provides insight into modulating the formation of ≡Co(IV)=O via defect engineering.
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Affiliation(s)
- Ruidian Su
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong266237, People’s Republic of China
| | - Yixuan Gao
- College of Environmental Sciences and Engineering, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing100871, People’s Republic of China
| | - Long Chen
- College of Environmental Sciences and Engineering, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing100871, People’s Republic of China
| | - Yi Chen
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong266237, People’s Republic of China
| | - Nan Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong266042, People’s Republic of China
| | - Wen Liu
- College of Environmental Sciences and Engineering, State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Peking University, Beijing100871, People’s Republic of China
| | - Baoyu Gao
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong266237, People’s Republic of China
| | - Qian Li
- Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong266237, People’s Republic of China
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16
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Jiang X, Zhou B, Yang W, Chen J, Miao C, Guo Z, Li H, Hou Y, Xu X, Zhu L, Lin D, Xu J. Precise coordination of high-loading Fe single atoms with sulfur boosts selective generation of nonradicals. Proc Natl Acad Sci U S A 2024; 121:e2309102121. [PMID: 38232287 PMCID: PMC10823248 DOI: 10.1073/pnas.2309102121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/15/2023] [Indexed: 01/19/2024] Open
Abstract
Nonradicals are effective in selectively degrading electron-rich organic contaminants, which unfortunately suffer from unsatisfactory yield and uncontrollable composition due to the competitive generation of radicals. Herein, we precisely construct a local microenvironment of the carbon nitride-supported high-loading (~9 wt.%) Fe single-atom catalyst (Fe SAC) with sulfur via a facile supermolecular self-assembly strategy. Short-distance S coordination boosts the peroxymonosulfate (PMS) activation and selectively generates high-valent iron-oxo species (FeIV=O) along with singlet oxygen (1O2), significantly increasing the 1O2 yield, PMS utilization, and p-chlorophenol reactivity by 6.0, 3.0, and 8.4 times, respectively. The composition of nonradicals is controllable by simply changing the S content. In contrast, long-distance S coordination generates both radicals and nonradicals, and could not promote reactivity. Experimental and theoretical analyses suggest that the short-distance S upshifts the d-band center of the Fe atom, i.e., being close to the Fermi level, which changes the binding mode between the Fe atom and O site of PMS to selectively generate 1O2 and FeIV=O with a high yield. The short-distance S-coordinated Fe SAC exhibits excellent application potential in various water matrices. These findings can guide the rational design of robust SACs toward a selective and controllable generation of nonradicals with high yield and PMS utilization.
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Affiliation(s)
- Xunheng Jiang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Binghui Zhou
- Department of Power Engineering, North China Electric Power University, Baoding071003, China
| | - Weijie Yang
- Department of Power Engineering, North China Electric Power University, Baoding071003, China
| | - Jiayi Chen
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou310058, China
| | - Chen Miao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Zhongyuan Guo
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Hao Li
- Advanced Institute for Materials Research, Tohoku University, Sendai980-8577, Japan
| | - Yang Hou
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou310058, China
| | - Xinhua Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
| | - Lizhong Zhu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou310058, China
| | - Daohui Lin
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou310058, China
| | - Jiang Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Zhejiang University, Hangzhou310058, China
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17
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Xin S, Ni L, Zhang P, Tan H, Song M, Li T, Gao Y, Hu C. Electron Delocalization Realizes Speedy Fenton-Like Catalysis over a High-Loading and Low-Valence Zinc Single-Atom Catalyst. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304088. [PMID: 37840391 DOI: 10.1002/advs.202304088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/20/2023] [Indexed: 10/17/2023]
Abstract
A zinc (Zn)-based single-atom catalyst (SAC) is recently reported as an active Fenton-like catalyst; however, the low Zn loading greatly restricts its catalytic activity. Herein, a molecule-confined pyrolysis method is demonstrated to evidently increase the Zn loading to 11.54 wt.% for a Zn SAC (ZnSA -N-C) containing a mixture of Zn-N4 and Zn-N3 coordination structures. The latter unsaturated Zn-N3 sites promote electron delocalization to lower the average valence state of Zn in the mix-coordinated Zn-Nx moiety conducive to interaction of ZnSA -N-C with peroxydisulfate (PDS). A speedy Fenton-like catalysis is thus realized by the high-loading and low-valence ZnSA -N-C for PDS activation with a specific activity up to 0.11 min L-1 m-2 , outstripping most Fenton-like SACs. Experimental results reveal that the formation of ZnSA -N-C-PDS* complex owing to the strong affinity of ZnSA -N-C to PDS empowers intense direct electron transfer from the electron-rich pollutant toward this complex, dominating the rapid bisphenol A (BPA) elimination. The electron transfer pathway benefits the desirable environmental robustness of the ZnSA -N-C/PDS system for actual water decontamination. This work represents a new class of efficient and durable Fenton-like SACs for potential practical environmental applications.
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Affiliation(s)
- Shaosong Xin
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Luning Ni
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Peng Zhang
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Haobin Tan
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Mingyang Song
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Tong Li
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Yaowen Gao
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Chun Hu
- Institute of Environmental Research at Greater Bay, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
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18
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Wu B, Li Z, Zu Y, Lai B, Wang A. Polar electric field-modulated peroxymonosulfate selective activation for removal of organic contaminants via non-radical electron transfer process. WATER RESEARCH 2023; 246:120678. [PMID: 37812980 DOI: 10.1016/j.watres.2023.120678] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023]
Abstract
Nonradical electron transfer process (ETP) in peroxomonosulfate (PMS) based advanced oxidation processes (AOPs) is regarded promising for selective degradation of organic contaminants in water, however, the subjective modulation strategy and the definitive mechanistic elucidation of ETP are still lacking. Herein, we proposed a heretofore unreported yet efficient ETP indution approach by construction of polar electrical field on biochar via nonmetallic elements co-doping. Physicochemical characterizations and density functional theory (DFT) calculations verified the electronegativity difference among boron, nitrogen, and sulfur elements bestowed robust local electric fields on biochar surface (BC-BNS), which effectively enhanced the adsorption complexation and charge transfer between biochar and PMS. Compared to the other single-doped or co-doped biochar, BC-BNS exhibited superior catalytic performance of PMS activation for degradation of atrazine (ATZ) (kobs=0.036 min-1), as well as various kinds of electron-rich organics. The remarkable catalytic degradation capacity was further verified in various aqueous matrices and background factors, representing the excellent selectivity. Analysis of contribution from reactive oxygen species and electrochemical testing together substantiated the role of polar electric fields in facilitating the modulation from singlet oxygen (1O2) to ETP as a prevailing mechanism. DFT calculations and apparent interactions revealed the dissociation of S-O bond was thermodynamically favored within this potent localized electric field, which further induced the cleavage of OO bond and ultimately promoted the dual electron transfer between ATZ and PMS. The superiority of BC-BNS/PMS system was further validated with the low ecotoxicity caused by enhanced dechlorination, the low energy consumption, and the long-term effectiveness. The novel modulation principle and atomic-level mechanism exploration gave suggestions for advancing ETP-dominated AOP to remove recalcitrant contaminants during water treatment and restoration.
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Affiliation(s)
- Bin Wu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zhiling Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Yunxia Zu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bo Lai
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Aijie Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; State Key Laboratory of Urban Water Resource and Environment, School of Civil & Environmental Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
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