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Chen Y, Xu J, Chen Y, Wang L, Jiang S, Xie ZH, Zhang T, Munroe P, Peng S. Rapid Defect Engineering in FeCoNi/FeAl 2O 4 Hybrid for Enhanced Oxygen Evolution Catalysis: A Pathway to High-Performance Electrocatalysts. Angew Chem Int Ed Engl 2024:e202405372. [PMID: 38659283 DOI: 10.1002/anie.202405372] [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: 03/19/2024] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Rational modulation of surface reconstruction in the oxygen evolution reaction (OER) utilizing defect engineering to form efficient catalytic activity centers is a topical interest in the field of catalysis. The introduction of point defects has been demonstrated to be an effective strategy to regulate the electronic configuration of electrocatalysts, but the influence of more complex planar defects (e.g., twins and stacking faults), on their intrinsic activity is still not fully understood. This study harnesses ultrasonic cavitation for rapid and controlled introduction of different types of defects in the FeCoNi/FeAl2O4 hybrid coating, optimizing OER catalytic activity. Theoretical calculations and experiments demonstrate that the different defects optimize the coordination environment and facilitate the activation of surface reconstruction into true catalytic activity centers at lower potentials. Moreover, it demonstrates exceptional durability, maintaining stable oxygen production at a high current density of 300 mA cm-2 for over 120 hours. This work not only presents a novel pathway for designing advanced electrocatalysts but also deepens our understanding of defect-engineered catalytic mechanisms, showcasing the potential for rapid and efficient enhancement of electrocatalytic performance.
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Affiliation(s)
- Yuhao Chen
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Jiang Xu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Yujie Chen
- School of Mechanical Engineering, University of Adelaide, Adelaide, SA-5005, Australia
| | - Luqi Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
| | - Shuyun Jiang
- Department of Mechanical Engineering, Southeast University, 2 Si Pai Lou, Nanjing, 210096, PR China
| | - Zong-Han Xie
- School of Mechanical Engineering, University of Adelaide, Adelaide, SA-5005, Australia
| | - Tianran Zhang
- College of Material Science and Opto-Electronic Technology, University of Chinese Academy of Science, Beijing, PR China
| | - Paul Munroe
- School of Materials Science and Engineering, University of New South Wales, NSW, 2052, Australia
| | - Shengjie Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
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2
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Cai YL, Xu YH, Xiang JZ, Zhang ZQ, He QX, Li YF, Lü J. Iron-doped bismuth oxybromides as visible-light-responsive Fenton catalysts for the degradation of atrazine in aqueous phases. J Environ Sci (China) 2024; 137:321-332. [PMID: 37980019 DOI: 10.1016/j.jes.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 11/20/2023]
Abstract
Pesticides and its degradation products, being well-known residues in soil, have recently been detected in many water bodies as pollutants of emerging concerns, and thus there is a contemporary demand to develop viable and cost-effective techniques for the removal of related organic pollutants in aqueous phases. Herein, a visible-light-responsive Fenton system was constructed with iron-doped bismuth oxybromides (Fe-BiOBr) as the catalysts. Taking the advantage of sustainable Fe(III)/Fe(II) conversion and optimized H2O2 utilization, the optimal Fe-BiOBr-2 catalyst showed an excellent atrazine removal efficiency of 97.61% in 120 min, which is superior than the traditional homogeneous Fenton and the majority of heterogeneous processes documented in the literature. In this photo-Fenton system, hydroxyl (·OH) and superoxide (·O2-) radicals were dominant active species contributed to the oxidative degradation of atrazine. Due to the production of various active radicals, five degradation pathways were proposed based on the identification of intermediates and degradation products. Overall, this work not only demonstrates a fundamental insight into creating highly efficient and atom economic photo-Fenton systems, but also provides a complementary strategy for the treatment of organic pollutants in water.
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Affiliation(s)
- Yong-Li Cai
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yu-Hang Xu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ji-Zun Xiang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhi-Qiang Zhang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Qiu-Xiang He
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Ya-Feng Li
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China
| | - Jian Lü
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350116, China.
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3
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Qu C, Lv X, Wang R, Zhang R, Guo W. Controllable synthesis of FeMn bimetallic ferrocene-based metal-organic frameworks to boost the catalytic efficiency for removal of organic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:17449-17458. [PMID: 36195810 DOI: 10.1007/s11356-022-23315-y] [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: 08/09/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
A series of FeMn bimetallic ferrocene-based metal-organic frameworks (FeMn-Fc-MOFs) with various molar ratios of Fe and Mn (1:9, 2:8, 4:6, 6:4) were successfully synthesized using a simple hydrothermal synthesis method and employed as an efficient activator on persulfate (PS) activation for water decontamination. Characterizations demonstrated that Fe and Mn were smoothly introduced into ferrocene-based MOFs and various molar ratios of Fe:Mn had some influence on crystallinity and surface structure of FeMn-Fc-MOFs. Within 120 min, Fe4Mn6-Fc-MOFs demonstrated the best catalytic activity among the different molar ratios, and acid orange 7(AO7) degradation rate was up to 92.0%. In addition, electrochemical experiments revealed that Fe4Mn6-Fc-MOFs possessed superior electron transfer capability than other FeMn-Fc-MOFs, leading to better catalytic performance. Moreover, quenching tests and electron paramagnetic resonance (EPR) detection indicated that hydroxyl radicals and sulfate radicals were both responsible for AO7 decomposition. Notably, the redox cycle of Fe(II)/Fe(III) and Mn(II)/Mn(IV) was discovered in the Fe4Mn6-Fc-MOFs/PS system, which was considered as the limiting process for the cleavage of the O-O bond in PS to generate active radicals. Ultimately, the Fe4Mn6-Fc-MOFs exhibits an excellent universality and good cycling stability for 5 continuous runs. This paper broadens the application of ferrocene-based MOFs on heterogeneous PS activation in environmental catalysis.
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Affiliation(s)
- Chengjie Qu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Xiaoyu Lv
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Rongyao Wang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Ruijuan Zhang
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Weilin Guo
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
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Zhou X, Chen X, Han W, Han Y, Guo M, Peng Z, Fan Z, Shi Y, Wan S. Tetracycline Removal by Hercynite-Biochar from the Co-Pyrolysis of Red Mud-Steel Slag-Sludge. NANOMATERIALS 2022; 12:nano12152595. [PMID: 35957024 PMCID: PMC9370334 DOI: 10.3390/nano12152595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/21/2022] [Accepted: 07/23/2022] [Indexed: 12/10/2022]
Abstract
The sludge-derived biochar is considered an effective emerging contaminants adsorbent for wastewater treatment. In this paper, red mud and steel slag (RMSS) was used for improving sludge dewaterability and enhancing the sludge-derived biochar adsorption capacity. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and a scanning electron microscope (SEM) were employed to comprehensively characterize the mineral composition, functional group, and morphology of the adsorbent. RMSS was able to improve the sludge dewatering performance by providing a skeleton structure to promote drainage and Fe(III) to decrease the Zeta potential. The dosage of 20 mg/g RMSS was able to reduce the specific resistance to filtration (SRF) and the Zeta potential of sludge from 1.57 × 1013 m/kg and −19.56 mV to 0.79 × 1013 m/kg and −9.10 mV, respectively. The co-pyrolysis of RMSS and sludge (2:8) induced the formation of biochar containing FeAl2O4 (PS80). The PS80 exhibited a large surface area (46.40 m2/g) and high tetracycline (TC) removal capacity (98.87 mg/g) when combined with H2O2 (PS80-H2O2). The adsorption process of TC onto PS80 and PS80-H2O2 was well described by the pseudo-first-order and pseudo-second-order kinetic model, indicating physisorption and chemisorption behavior. The results indicated that co-pyrolysis of RMSS sludge PS80-H2O2 could enhance the biochar adsorption capacity of TC, attributable to the degradation by ·OH generated by the heterogeneous Fenton reaction of FeAl2O4 and H2O2, the release of adsorbed sites, and the improvement of the biochar pore structure. This study proposed a novel method for the use of RMSS to dewater sludge as well as to induce the formation of FeAl2O4 in biochar with effective TC removal by providing a Fe and Al source, achieving a waste-to-resource strategy for the integrated management of industrial solid waste and sewage sludge.
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Affiliation(s)
- Xian Zhou
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Xia Chen
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Wei Han
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Yi Han
- College of Resources and Environment, Anqing Normal University, Anqing 246011, China;
- Correspondence:
| | - Mengxin Guo
- College of Resources and Environment, Anqing Normal University, Anqing 246011, China;
| | - Ziling Peng
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Zeyu Fan
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Yan Shi
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
| | - Sha Wan
- Changjiang River Scientific Research Institute, Research Center of Water Engineering Safety and Disaster Prevention of Ministry of Water Resources, Wuhan 430010, China; (X.Z.); (X.C.); (W.H.); (Z.P.); (Z.F.); (Y.S.); (S.W.)
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5
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Spherical ZVI/Mn-C Bimetallic Catalysts for Efficient Fenton-Like Reaction under Mild Conditions. Catalysts 2022. [DOI: 10.3390/catal12040444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The heterogeneous Fenton-like reaction has been receiving increasing attention for its inexpensiveness and high efficiency in water treatment. In this study, a novel strategy was proposed for preparing spherical ZVI/Mn-C bimetallic catalysts with a high activity for a Fenton-like reaction by using the ammonium alginate assisted sol–gel method coupled with a carbothermic reduction. The results showed that the obtained ZVI/Mn-C spheres had a uniform size, smooth surface and good sphericity, and the particle size of ZVI was limited to about 30 nm by the carbon layer. Among all catalysts, the ZVI/Mn-C-31 catalyst exhibited the highest phenol degradation efficiency in the Fenton-like process, and almost 100% phenol degradation efficiency was achieved under neutral pH at room temperature within 5 min. Moreover, the ZVI/Mn-C-31/H2O2 system showed a 100% degradation efficiency for removing a wide range of aromatic pollutants, including catechol, resorcinol and o-nitrophenol. Moreover, the radicals-scavenging experiment illustrated that the ·OH played a key factor in mineralizing the organic matters, and the ·O2− generated from the MnO-H2O2 system accelerated the conversion rate of ferric iron to ferrous iron. Due to the synergistic effects between ZVI and MnO, the ZVI/Mn-C-31 catalyst performed excellently in the Fenton-like reaction at an extended pH range.
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7
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Wang J, Tang J. Fe-based Fenton-like catalysts for water treatment: Preparation, characterization and modification. CHEMOSPHERE 2021; 276:130177. [PMID: 33714147 DOI: 10.1016/j.chemosphere.2021.130177] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/06/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
Fenton reaction based on hydroxyl radicals () is effective for environment remediation. Nevertheless, the conventional Fenton reaction has several disadvantages, such as working at acidic pH, producing iron-containing sludge, and the difficulty in catalysts reuse. Fenton-like reaction using solid catalysts rather than Fe2+ has received increasing attention. To date, Fe-based catalysts have received increasing attention due to their earth abundance, good biocompatibility, comparatively low toxicity and ready availability, it is necessary to review the current status of Fenton-like catalysts. In this review, the recent advances in Fe-based Fenton-like catalysts were systematically analyzed and summarized. Firstly, the various preparation methods were introduced, including template-free methods (precipitation, sol gel, impregnation, hydrothermal, thermal, and others) and template-based methods (hard-templating method and soft-templating method); then, the characterization techniques for Fe-based catalysts were summarized, such as X-ray diffraction (XRD), Brunauer, Emmett and Teller (BET), SEM (scanning electron microscopy)/TEM (transmission electron microscopy)/HRTEM (high-resolution TEM), FTIR (Fourier transform infrared spectroscopy)/Raman, XPS (X-ray photoelectron spectroscopy), 57Fe Mössbauer spectroscopy etc.; thirdly, some important conventional Fe-based catalysts were introduced, including iron oxides and oxyhydroxides, zero-valent iron (ZVI) and iron disulfide and oxychloride; fourthly, the modification strategies of Fe-based catalysts were discussed, such as microstructure controlling, introduction of support materials, construction of core-shell structure and incorporation of new metal-containing component; Finally, concluding remarks were given and the future perspectives for further study were discussed. This review will provide important information to further advance the development and application of Fe-based catalysts for water treatment.
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Affiliation(s)
- Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, Tsinghua University, Beijing, 100084, PR China.
| | - Juntao Tang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, PR China
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8
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Wang J, Tang J. Fe-based Fenton-like catalysts for water treatment: Catalytic mechanisms and applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115755] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Liang S, Ziyu Z, Han J, Xiaoyan D. Facile synthesis of magnetic mesoporous silica spheres for efficient removal of methylene blue via catalytic persulfate activation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117801] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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10
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Tao S, Liang S, Chen Y, Yu W, Hou H, Qiu J, Zhu Y, Xiao K, Hu J, Liu B, Wang Y, Yang J. Enhanced sludge dewaterability with sludge-derived biochar activating hydrogen peroxide: Synergism of Fe and Al elements in biochar. WATER RESEARCH 2020; 182:115927. [PMID: 32622123 DOI: 10.1016/j.watres.2020.115927] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 05/08/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
Reuse of sludge-derived Fe-rich biochar as sludge conditioner is an attractive route for management of waste activated sludge at source. Homogeneous and heterogeneous Fenton reactions have been proved in sludge conditioning with Fe-rich biochar activating H2O2 to enhance sludge dewaterability. The FeAl2O4 phase in Fe-rich biochar was first identified during pyrolysis of sewage sludge after adding both Fe2O3 and Al2O3, since Fe and Al elements are two of major metal elements in Fe-rich sludge. Compared with the Fe-rich biochar that did not comprise FeAl2O4 phase, the capillary suction time (CST) and specific resistance to filterability (SRF) of the sludge conditioned with the Fe-rich biochar comprising FeAl2O4 phase could be efficiently decreased by 23% and 44%, respectively. The results indicated that FeAl2O4 phase in Fe-rich biochar could improve sludge dewaterability by enhancing heterogeneous Fenton reaction. Synergistic effect between Fe and Al in FeAl2O4 contributed to weak the O-O bond in H2O2 and reduce the activation energy of H2O2 decomposition for enhancing ·OH generation, which could be explained by density functional theory (DFT) calculations for the first time. Thus, the decomposition rate of H2O2 and the amount of ·OH generation were obviously promoted by FeAl2O4 phase in sludge-derived biochar during sludge conditioning, attributing to the destruction of sludge flocs, the release of bound water, and the improvement of sludge dewaterability.
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Affiliation(s)
- Shuangyi Tao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Sha Liang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Ye Chen
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Wenbo Yu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Huijie Hou
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Jingjing Qiu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Yuwei Zhu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Keke Xiao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Jingping Hu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Bingchuan Liu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China
| | - Yanfei Wang
- Wuhan Sanzhen Industry Holding Co., Ltd, Wuhan, Hubei, 430070, China
| | - Jiakuan Yang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China; Hubei Provincial Engineering Laboratory for Solid Waste Treatment Disposal and Recycling, Wuhan, Hubei, 430074, China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China.
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11
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Yang N, Liu Y, Zhu J, Wang Z, Li J. Study on the efficacy and mechanism of Fe-TiO 2 visible heterogeneous Fenton catalytic degradation of atrazine. CHEMOSPHERE 2020; 252:126333. [PMID: 32199169 DOI: 10.1016/j.chemosphere.2020.126333] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/21/2019] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
In order to improve the catalytic activity and recycling performance of heterogeneous Fenton catalyst, a heterogeneous Fenton catalyst Fe/TiO2 based on TiO2 supported visible light response was prepared by a simple method using TiO2 synthesized by sol-gel method as carrier and ferric nitrate as Fe source. It was characterized by SEM, EDX, XRD, UV-vis instruments. The influencing factors of catalytic degradation of atrazine by visible light heterogeneous Fenton of Fe/TiO2 were studied and the reaction kinetics were fitted. The mineralization degree of atrazine was reflected by the removal rate of TOC. The intermediate products by the degradation of the catalytic system was analyzed and the reaction mechanism of Fe/TiO2-H2O2 visible light system was discussed. The XRD results showed that Fe was highly dispersed on the surface of TiO2 in the form of α-Fe2O3. The Fe/TiO2 catalyst with heterogeneous Fenton and visible light photocatalytic activity was successfully optimized, forbidden bandwidth of Fe/TiO2 after Fe supported was narrower, the scope of light absorption red-shifted, the electron-hole pairs were more generated, and there was a significant synergistic effect between the carrier TiO2 and the supported Fe, which exhibited good oxidation capacity for degradation of 10 mg L-1 atrazine in pH of 3, the concentration of H2O2 was 1.6 mM, and the catalyst was added at 1 g L-1, achieving over 95% removal efficiency within 30 min, and, in the range of pH 3-7, the degradation rate of the reaction for 30 min can be maintained above 75%, which greatly broadened the range of pH application and had good recycling performance. The degradation process conformed to the quasi-first-order kinetic model. Through LC-MS analyzed, 12 intermediate products were formed during the degradation of atrazine, the final products were all cyanuric acid, and then the triazine ring was mineralized into inorganic substances such as CO2, H2O and NO3- by oxidation of ·OH, and the possible degradation pathways were inferred.
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Affiliation(s)
- Nan Yang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yanping Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Jia Zhu
- Shenzhen Key Laboratory of Industrial Water Saving and Urban Sewage Resources, School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, 518055, China.
| | - Zhongqiang Wang
- Shenzhen Water Planning and Design Institute Co., Ltd, Shenzhen, 518022, China
| | - Jinwei Li
- Shenzhen Key Laboratory of Industrial Water Saving and Urban Sewage Resources, School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen, 518055, China
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12
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Gan Q, Hou H, Liang S, Qiu J, Tao S, Yang L, Yu W, Xiao K, Liu B, Hu J, Wang Y, Yang J. Sludge-derived biochar with multivalent iron as an efficient Fenton catalyst for degradation of 4-Chlorophenol. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 725:138299. [PMID: 32278183 DOI: 10.1016/j.scitotenv.2020.138299] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/15/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
Fe-rich biochar with multivalent iron compounds (Fe0, Fe0.95C0.05, Fe3O4, and FeAl2O4) pyrolyzed from sludge cake conditioned with Fenton's reagent and red mud was utilized as an efficient Fenton catalyst for the degradation of 4-chlorophenol (4-CP). Effects of pyrolysis temperature and sludge conditioner composition on the transformation of iron compounds were studied. Both homogeneous Fenton reaction initiated by Fe2+ leached from both low-valent Fe0 and Fe0.95C0.05, and heterogeneous Fenton reaction initiated by solid iron phases of Fe3O4 and FeAl2O4 were revealed to contribute to the degradation of 4-CP. The removal efficiency of 4-CP remained 100% after five successive degradation rounds. The homogeneous Fenton reaction mainly works in the first degradation round, and the heterogeneous Fenton reaction dominates in subsequent degradation rounds. The findings of this study suggest that sewage sludge derived Fe-rich biochar could be utilized as an efficient Fenton catalyst for recalcitrant organics degradation.
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Affiliation(s)
- Quan Gan
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; CCCC-FHDI Engineering Co.,Ltd, Guangzhou, Guangdong 510230, China
| | - Huijie Hou
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Sha Liang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China.
| | - Jingjing Qiu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Shuangyi Tao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Liang Yang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Wenbo Yu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Keke Xiao
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Bingchuan Liu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Jingping Hu
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yanfei Wang
- Wuhan Sanzhen Industrial Holding Co.,Ltd., Wuhan, Hubei 430074, China
| | - Jiakuan Yang
- School of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei 430074, China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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13
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Introduction to Plasma Electrolytic Oxidation—An Overview of the Process and Applications. COATINGS 2020. [DOI: 10.3390/coatings10070628] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Plasma electrolytic oxidation (PEO), also called micro-arc oxidation (MAO), is an innovative method in producing oxide-ceramic coatings on metals, such as aluminum, titanium, magnesium, zirconium, etc. The process is characterized by discharges, which develop in a strong electric field, in a system consisting of the substrate, the oxide layer, a gas envelope, and the electrolyte. The electric breakdown in this system establishes a plasma state, in which, under anodic polarization, the substrate material is locally converted to a compound consisting of the substrate material itself (including alloying elements) and oxygen in addition to the electrolyte components. The review presents the process kinetics according to the existing models of the discharge phenomena, as well as the influence of the process parameters on the process, and thus, on the resulting coating properties, e.g., morphology and composition.
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14
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Guo H, Su S, Liu Y, Ren X, Guo W. Enhanced catalytic activity of MIL-101(Fe) with coordinatively unsaturated sites for activating persulfate to degrade organic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:17194-17204. [PMID: 32152863 DOI: 10.1007/s11356-020-08316-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
In this work, four novel defective MIL-101(Fe) catalysts with coordinatively unsaturated sites were successfully prepared via a facile synthesis strategy by employing benzoic acid, acetic acid, oxalic acid, or citric acid as a modulator. The modified catalysts were demonstrated the existence of defects in the parent framework by a series of characterizations. As compared to the initial MIL-101(Fe), the electronic structure of defective MIL-101(Fe) catalyst was effectively adjusted; meanwhile, the coordinatively unsaturated Fe sites were efficiently generated and the pore sizes were enlarged. Besides, the defective MIL-101(Fe) catalysts exhibited excellent catalytic performance for rhodamine B degradation by persulfate activation. To be specific, the degradation rates of rhodamine B increased from 58.70 to 94.05%, 86.11%, 78.70%, and 82.62%, respectively. The defective MIL-101(Fe) with coordinatively unsaturated sites showed good reusability and stability, and the probable catalytic mechanism was also investigated.
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Affiliation(s)
- Huaisu Guo
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Shengnan Su
- Zhonglu Environmental and Engineering Assessment Center of Shandong Province, Jinan, 250022, China
| | - Yang Liu
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Xiaohua Ren
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China
| | - Weilin Guo
- School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
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15
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Benchmarking recent advances and innovative technology approaches of Fenton, photo-Fenton, electro-Fenton, and related processes: A review on the relevance of phenol as model molecule. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116337] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Li K, Liu S, Xue Y, Zhang L, Han Y. A superparamagnetic Fe3O4–TiO2 composite coating on titanium by micro-arc oxidation for percutaneous implants. J Mater Chem B 2019; 7:5265-5276. [DOI: 10.1039/c9tb01096c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The micro-magnetic field induced by the Fe3O4 nanoparticles in TiO2 can efficiently enhance the fibroblast response, reduce bacterial reproduction in vitro, and improve skin integration in vivo.
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Affiliation(s)
- Kai Li
- State-Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Shiyu Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases
- Center for Tissue Engineering, School of Stomatology
- Fourth Military Medical University
- Xi’an 710032
- China
| | - Yang Xue
- State-Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Lan Zhang
- State-Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- China
| | - Yong Han
- State-Key Laboratory for Mechanical Behavior of Materials
- Xi’an Jiaotong University
- Xi’an 710049
- China
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17
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Gao C, Chen S, Quan X, Yu H, Zhang Y. Enhanced Fenton-like catalysis by iron-based metal organic frameworks for degradation of organic pollutants. J Catal 2017. [DOI: 10.1016/j.jcat.2017.09.015] [Citation(s) in RCA: 179] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Magnetite/Fe-Al-montmorillonite as a Fenton catalyst with efficient degradation of phenol. J Colloid Interface Sci 2017; 504:611-619. [DOI: 10.1016/j.jcis.2017.05.110] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/17/2017] [Accepted: 05/28/2017] [Indexed: 11/18/2022]
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19
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Mu HY, Li FT, An XT, Liu RH, Li YL, Qian X, Hu YQ. One-step synthesis, electronic structure, and photocatalytic activity of earth-abundant visible-light-driven FeAl 2O 4. Phys Chem Chem Phys 2017; 19:9392-9401. [PMID: 28327717 DOI: 10.1039/c7cp01007a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of inexpensive visible-light-driven photocatalysts is an important prerequisite for realizing the industrial application of photocatalysis technology. In this paper, an earth-abundant FeAl2O4 photocatalyst is prepared via facile solution combustion synthesis. Density functional theory and the scanning Kelvin probe technique are employed to ascertain the positions of the energy bands and the Fermi level. Phenol is taken as a model pollutant to evaluate the photocatalytic activity of FeAl2O4. The scavenger experiment results, ˙OH-trapping fluorescence technique, and electron spin resonance measurements confirm that the superoxide anion radical is the main active species generated in the photocatalytic process, which also further corroborates the proposed electronic structure of FeAl2O4. The degradation experiments and O2 temperature programmed desorption results over various samples verify that the crystallinity degree is a more important factor than the oxygen adsorption ability in determining photocatalytic activity.
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Affiliation(s)
- Hui-Ying Mu
- Chemical Engineering Institute, Tianjin University, Tianjin 30000, China and Hebei Chem & Pharmaceut Coll, Shijiazhuang 050026, China
| | - Fa-Tang Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Xing-Tao An
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Rui-Hong Liu
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Yi-Lei Li
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Xin Qian
- College of Science, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Yong-Qi Hu
- Chemical Engineering Institute, Tianjin University, Tianjin 30000, China and College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China.
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