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Sun H, Wang L, Liu Y, Cheng Z, Zhao Y, Guo H, Qu G, Wang T, Yin X. Photocatalytic reduction of Cr(VI) via surface modified g-C 3N 4 by acid-base regulation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 324:116431. [PMID: 36352721 DOI: 10.1016/j.jenvman.2022.116431] [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: 05/26/2022] [Revised: 09/20/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Cr(VI) is a class of highly toxic heavy metals. In this study, alkali-modified g-C3N4 (cOH-CN) and acid-modified g-C3N4 (cH-CN) materials were successfully synthesized, and their photocatalytic activities for Cr(VI) reduction under visible light irradiation were tested. Owing to defect structures by cH-CN and -OH group introduction by cOH-CN, the modified materials exhibited a larger surface area, more abundant pore structures, a wider visible light absorption range, higher energy gap values, and a stronger capacity for electron-hole pair separation. As a result, satisfactory Cr(VI) reduction performance was gained by these two photocatalysts. Almost all Cr(VI) was converted to Cr(III) after 60 min of treatment in the presence of these two catalysts, while it was only 30% for the pristine g-C3N4 materials. Relatively higher dosages of cH-CN and cOH-CN and acidic conditions both improved Cr(VI) reduction in the cH-CN and cOH-CN photocatalytic systems. Cr(VI) reduction was mainly initiated by free electrons in the photocatalytic system of the modified materials. Finally, Cr(VI) in the photocatalytic system was almost completely converted to Cr(III). Furthermore, the stability and recycling of the cH-CN and cOH-CN catalysts were evaluated.
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Affiliation(s)
- Huimin Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - Le Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - Yue Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - Zhen Cheng
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - Yifan Zhao
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - He Guo
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, PR China
| | - Guangzhou Qu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
| | - Tiecheng Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China.
| | - Xianqiang Yin
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi, 712100, PR China
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Hou C, Jiang X, Chen D, Zhang X, Liu X, Mu Y, Shen J. Ag-TiO 2/biofilm/nitrate interface enhanced visible light-assisted biodegradation of tetracycline: The key role of nitrate as the electron accepter. WATER RESEARCH 2022; 215:118212. [PMID: 35255424 DOI: 10.1016/j.watres.2022.118212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/11/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
Due to the pivotal role of Ag-TiO2/biofilm/nitrate interface, enhanced visible light-assisted biodegradation of tetracycline (TC) in anoxic system was realized through both batch experiment and long-term operation in this study. The results of the batch experiment elucidated that 50 mg L-1 TC could be completely removed within 10 h in Ag-TiO2/biofilm/nitrate system. The continuous flow experiment was operated for 75 d to evaluate the performance and stability of Ag-TiO2/biofilm/nitrate system. TC removal efficiency in Ag-TiO2/biofilm/nitrate system was as high as 92.4 ± 1.6% at influent TC concentration of 50 mg L-1 TC and hydraulic retention time (HRT) of 10 h, which would be attributed to the promoted separation of photoholes and photoelectrons at the presence of nitrate as electron acceptor. Facilitated electron transfer between semiconductor and biofilm was beneficial for enhancing TC biodegradation, thus lowering toxicity of intermediate products and promoting microbial activity. Moreover, the species related to TC biodegradation (Rhodopseudomonas, Phreatobacter and Stenotrophomonas), denitrification (Thauera) and electron transfer (Delftia) were enriched at Ag-TiO2/biofilm/nitrate interface. Besides, a possible mechanism involved in enhanced TC degradation and nitrogen removal at Ag-TiO2/biofilm/nitrate interface was proposed. This study provided a novel and promising strategy to enhance recalcitrant TC removal from industrial wastewater.
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Affiliation(s)
- Cheng Hou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xinbai Jiang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Dan Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaoyu Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaodong Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Mu
- Department of Applied Chemistry, CAS Key Laboratory of Urban Pollutant Conversion, University of Science and Technology of China, Hefei 230026, China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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3
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Xiong S, Deng Y, Gong D, Tang R, Zheng J, Li L, Zhou Z, Su L, Liao C, Yang L. Magnetically modified in-situ N-doped Enteromorpha prolifera derived biochar for peroxydisulfate activation: Electron transfer induced singlet oxygen non-radical pathway. CHEMOSPHERE 2021; 284:131404. [PMID: 34323791 DOI: 10.1016/j.chemosphere.2021.131404] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 06/18/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Herein, in-situ N-doped Enteromorpha prolifera derived magnetic biochar (MBC) was prepared by loading Fe3O4. It can effectively activate peroxodisulfate (PDS) to degrade tetracycline (TC) and easy recycling. The removal rate of TC reached 87.2%, and its possible degradation pathway was revealed through a liquid chromatography-mass spectrometer. This work first proposes the mechanism of in-situ N-doping and Fe synergistic effect on PDS activation. Unlike the well-reported role of N doping in activating PDS, except for the edge pyridine N plays a significant role in the activation of PDS. After the load of Fe, the synergistic effect of Fe and graphite N induces a non-radical path dominated by singlet oxygen (1O2) due to the excellent electron transfer function. Through chemical quenching experiment, electron spin detection, and electrochemical analysis, the mechanism of PDS activation by MBC was thoroughly investigate. This research will deepen the understanding of the mechanism of transition metals and carbon materials in synergistically driving PDS activation, and guide biochar-mediated PDS activation in environmental remediation.
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Affiliation(s)
- Sheng Xiong
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Yaocheng Deng
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China.
| | - Daoxin Gong
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China.
| | - Rongdi Tang
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Jiangfu Zheng
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Ling Li
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Zhanpeng Zhou
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Long Su
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Chanjuan Liao
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Lihua Yang
- College of Resources & Environment, Hunan Agricultural University, Changsha, 410128, China
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Organic-inorganic hybrid hydroquinone bridged V-CdS/HAP/Pd-TCPP: A novel visible light active photocatalyst for phenol degradation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116721] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Wang J, Qian Q, Chen Q, Liu XP, Luo Y, Xue H, Li Z. Significant role of carbonate radicals in tetracycline hydrochloride degradation based on solar light-driven TiO2-seashell composites: Removal and transformation pathways. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63525-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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6
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Mengting Z, Kurniawan TA, Yanping Y, Dzarfan Othman MH, Avtar R, Fu D, Hwang GH. Fabrication, characterization, and application of ternary magnetic recyclable Bi 2WO 6/BiOI@Fe 3O 4 composite for photodegradation of tetracycline in aqueous solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 270:110839. [PMID: 32721303 DOI: 10.1016/j.jenvman.2020.110839] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 04/15/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
We aim at fabricating a ternary magnetic recyclable Bi2WO6/BiOI@Fe3O4 composite that could be applied for photodegradation of tetracycline (TC) from synthetic wastewater. To identify any changes with respect to the composite's morphology and crystal structure properties, ΧRD, FTIR, FESEM-EDS, PL and VSM analyses are carried out. The effects of Fe3O4 loading ratio on the Bi2WO6/BiOI for TC photodegradation are evaluated, while operational parameters such as pH, reaction time, TC concentration, and photocatalyst's dose are optimized. Removal mechanisms of the TC by the composite and its photodegradation pathways are elaborated. With respect to its performance, under the same optimized conditions (1 g/L of dose; 5 mg/L of TC; pH 7; 3 h of reaction time), the Bi2WO6/BiOI@5%Fe3O4 composite has the highest TC removal (97%), as compared to the Bi2WO6 (63%). After being saturated, the spent photocatalyst could be magnetically separated from solution for subsequent use. In spite of three consecutive cycles with 71% of efficiency, the spent composite still has reasonable photocatalytic activities for reuse. Overall, this suggests that the composite is a promising photocatalyst for TC removal from aqueous solutions.
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Affiliation(s)
- Zhu Mengting
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and Environment, Xiamen University, Xiamen, 361102, Fujian, China
| | - Tonni Agustiono Kurniawan
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and Environment, Xiamen University, Xiamen, 361102, Fujian, China; China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Selangor Darul Ehsan, Sepang, 43900, Malaysia.
| | - You Yanping
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and Environment, Xiamen University, Xiamen, 361102, Fujian, China
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Ram Avtar
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810, Japan.
| | - Dun Fu
- Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institute, School of Resources and Civil Engineering, Suzhou University, Suzhou, 234000, PR China
| | - Goh Hui Hwang
- School of Electrical Engineering, Guangxi University, Nanning, Guangxi Province, 530004, China
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7
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Zhu H, Gong L, Chen Z, Hu Y, Li Z. Al cluster oxide modified a hematite/P3HT ternary Z-scheme photocatalyst with excellent photocatalytic performance: A discussion of the mechanism. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122252. [PMID: 32062349 DOI: 10.1016/j.jhazmat.2020.122252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 06/10/2023]
Abstract
The Z-scheme photocatalyst is valuable for use in polluted water purification, and there is a need to develop a cheap and efficient photocatalyst. This study presents a new type of Z-scheme photocatalytic material composed of hematite and P3HT, also, the Al cluster oxides were first used as a charge transfer mediator to construct Z-scheme photocatalysis system. In addition, by analyzing the electron rearrangement phenomenon exhibited by the XPS spectrum and the experimental results of the in-situ illumination XPS, it is found that Al cluster is beneficial to the electron multi-step charge transfer process and Al cluster favors the construction of Z-scheme structure between hematite and P3HT. This Poly-3-hexylthiophene (P3HT)/Al cluster oxide/hematite ternary photocatalyst exhibited an excellent degradation effect on bisphenol A and tetracycline. This study demonstrates the feasibility of using the Al cluster as a charge mediator in the Z-scheme, providing new Z-scheme catalyst construction idea which is beneficial to the popularization and use of Z-scheme system in practical applications, and providing a new material for water pollution purification.
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Affiliation(s)
- Hongjie Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Lingxuan Gong
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Zhihao Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Youyou Hu
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Zhengkui Li
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China.
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8
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Zhu H, Chen Z, Hu Y, Gong L, Li D, Li Z. A novel immobilized Z-scheme P3HT/α-Fe 2O 3 photocatalyst array: Study on the excellent photocatalytic performance and photocatalytic mechanism. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:122119. [PMID: 31972528 DOI: 10.1016/j.jhazmat.2020.122119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/09/2020] [Accepted: 01/14/2020] [Indexed: 05/23/2023]
Abstract
The Z-scheme photocatalyst is valuable for use in polluted water purification. To improve the practical application value of the Z-scheme, in this study, a nano α-Fe2O3 and P3HT composite photocatalyst array was synthesized by electrophoretic deposition for the first time. This material was named F1P. The EPR, VBXPS and in situ illumination XPS analyses indicated that the charge transfer path of F1P conforms to the Z-scheme, and F1P array has a high light energy conversion efficiency. Due to the advantages of the Z-scheme system and the good light harvesting ability, F1P exhibited a good degradation effect on different types of pollutants under visible light irradiation. The degradation efficiency of tetracycline and bisphenol A by F1P can reach 97 % and 99 %, respectively. Moreover, F1P showed a certain resistance to water quality changes. After four cycles, F1P can maintain the structural stability and good pollutant treatment effect. Due to the high redox ability of F1P, the complex structure of pollutants can be destroyed and the degradation path of pollutants in F1P system was also analyzed. This study provides a new way of synthesizing Z-scheme systems and immobilizing Z-scheme photocatalysts. F1P is a new material with high practicability.
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Affiliation(s)
- Hongjie Zhu
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Zhihao Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Youyou Hu
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Lingxuan Gong
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Dandan Li
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China
| | - Zhengkui Li
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, China; School of the Environment, Nanjing University, Jiangsu, Nanjing, 210023, China.
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9
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Wang M, Fan C, Yang S, Liu M, Luo J, Liu Y, Tang L, Gong Z, Leng S. Nitrogen deficient carbon nitride for efficient visible light driven tetracycline degradation: a combination of experimental and DFT studies. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01124j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The narrow visible-light absorption range and a high recombination rate of photo-excited electrons and holes are the main reasons for the confined photocatalytic performance of graphitic carbon nitride (g-C3N4).
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Affiliation(s)
- Mier Wang
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Changzheng Fan
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Shuaijun Yang
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Milan Liu
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Jun Luo
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Yani Liu
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Lin Tang
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Zhixuan Gong
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
| | - Shuwen Leng
- College of Environmental Science and Engineering
- Hunan University
- Changsha
- China
- Key Laboratory of Environmental Biology and Pollution Control
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10
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Synthesis of a Novel Catalyst MnO/CNTs for Microwave-Induced Degradation of Tetracycline. Catalysts 2019. [DOI: 10.3390/catal9110911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Microwave-induced catalytic degradation (MICD) has been considered as one of the most prospective approaches to remove organic contaminants from water. High-performance catalysts, ideally offering efficient degradation ability, are essential to this process. This work reports the fabrication of manganese oxide on carbon nanotubes (MnO/CNTs) as an efficient catalyst under microwave irradiation (MI) to remove tetracycline (TC) from aqueous solution. The hybrid MnO/CNTs structure shows excellent performance in TC degradation. Combining experimental characterization and theoretical calculations, synergistic mechanisms are revealed: (i) Strong MnO/CNTs interaction stabilizes Mn(II) through interfacial bonding; (ii) high-spin states associated with low coordinated Mn(II) play a major role in MICD; and (iii) superoxide radicals (•O2−) and hydroxyl radicals (•OH) induced by microwave input are identified as the major active species.
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11
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Construction of zinc-magnesium-iron multinary spinel core-shell microspheres with enhanced photocatalytic properties of 1, 2-dichlorobenzene toxic species. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111903] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Zhao J, Han P, Tian S, Shi H, He J, Xiao C. Polypyrrole/cadmium sulfide hollow fiber with high performance contaminant removal and photocatalytic activity fabricated by layer-by-layer deposition and fiber-sacrifice template approach. J Colloid Interface Sci 2019; 557:94-102. [PMID: 31514097 DOI: 10.1016/j.jcis.2019.08.095] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/16/2019] [Accepted: 08/18/2019] [Indexed: 12/22/2022]
Abstract
A recyclable polypyrrole (PPy)/cadmium sulfide (CdS) hollow fiber photocatalyst was innovatively fabricated for solving the loss issue of the current powder-form photocatalyst in slurry system. Core-sheath structure CdS/polyacrylonitrile (PAN) fiber was prepared via successive ionic layer adsorption and reaction (SILAR) method on the surface of PAN fiber. PPy was further deposited on the CdS/PAN fiber by vapor deposition polymerization. After the removal of interior PAN template, PPy/CdS hollow fiber was yielded. The hollow structure of PPy/CdS hollow fiber was confirmed by morphology observation. The resulting PPy/CdS hollow fiber presents low energy band gaps of 1.9 eV, which accounts for enhanced visible light photocatalytic activity after PPy deposition. PPy/CdS hollow fiber shows good dye removal efficiency of 73.06 wt% (dosage of the product as low as 5 mg·10 mL-1), and praiseworthy H2 production rate up to 269.7 μmol·g-1·h-1. PPy/CdS hollow fiber maintained high and sustainable photocatalytic activity compared to CdS/PAN fiber after 8 cycles, indicating that PPy effectively improved the stability of CdS. Here, PPy plays key synergistic role in photocatalysis of PPy/CdS hollow fiber for the promotive and protective effects based on the actual photocatalytic performance and inductively coupled plasma optical emission spectrometer (ICP-OES) results. Compared with nano-sized photocatalysts, the fiber-formed PPy/CdS hollow fiber is highly bulky and easy to recycle. PPy/CdS hollow fiber has great potential for scale-up in industrial application because of its excellent grabbing ability and degradation to contaminants, and ease of disposal.
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Affiliation(s)
- Jian Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Pengyao Han
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Shengnan Tian
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Haiting Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Jiahuan He
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Changfa Xiao
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
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13
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Peng J, Huang G. Selective photocatalytic degradation of tetracycline by metal-free heterojunction surface imprinted photocatalyst based on magnetic fly ash. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Kim W, Park JY, Kim Y. Fabrication of branched-TiO2 microrods on the FTO glass for photocatalytic reduction of Cr(VI) under visible-light irradiation. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.01.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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15
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Li C, Yu S, Zhang X, Wang Y, Liu C, Chen G, Dong H. Insight into photocatalytic activity, universality and mechanism of copper/chlorine surface dual-doped graphitic carbon nitride for degrading various organic pollutants in water. J Colloid Interface Sci 2019; 538:462-473. [DOI: 10.1016/j.jcis.2018.12.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 11/26/2018] [Accepted: 12/01/2018] [Indexed: 12/27/2022]
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16
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Xu L, Chen WQ, Ke SQ, Zhu M, Qiu WH, Liu N, Namuangruk S, Maitarad P, Impeng S, Tang L. Efficient photocatalytic reactions of Cr(vi) reduction and ciprofloxacin and RhB oxidation with Sn(ii)-doped BiOBr. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01405e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient photocatalytic reactions of Cr(VI) reduction, ciprofloxacin and RhB oxidation with Sn(II) doped BiOBr.
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Affiliation(s)
- Ling Xu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Wen-qian Chen
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
- Shanghai Institute of Applied Radiation
| | - Shu-qiang Ke
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Min Zhu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Wen-hui Qiu
- Shanghai Institute of Applied Radiation
- Shanghai University
- Shanghai 201800
- PR China
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control
| | - Ning Liu
- School of Environment and Architecture
- University of Shanghai for Science and Technology
- Shanghai 200093
- PR China
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
- Research Center of Nano Science and Technology
- Shanghai University
| | - Phornphimon Maitarad
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- P. R. China
| | - Sarawoot Impeng
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Thailand
| | - Liang Tang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- PR China
- Key Laboratory of Organic Compound Pollution Control Engineering (MOE)
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17
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Peng J, Lu Z, Lu J, Ma Z, Song M, Liu X, Huo P, Dong H, Qiu X, Han S. Enhanced selectivity for photodegrading ciprofloxacin by a magnetic photocatalyst modified with a POPD–CdS heterojunction embedded imprinted layer. NEW J CHEM 2019. [DOI: 10.1039/c8nj05710a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A POPD–CdS heterojunction embedded magnetic imprinted photocatalyst achieves the purpose of selective photodegradation of ciprofloxacin and effectively suppresses the secondary pollution caused by CdS photocorrosion.
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18
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Li C, Yu S, Dong H, Wang Y, Wu H, Zhang X, Chen G, Liu C. Mesoporous ferriferrous oxide nanoreactors modified on graphitic carbon nitride towards improvement of physical, photoelectrochemical properties and photocatalytic performance. J Colloid Interface Sci 2018; 531:331-342. [DOI: 10.1016/j.jcis.2018.07.083] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/14/2018] [Accepted: 07/20/2018] [Indexed: 01/04/2023]
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19
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Preparation and characterization of Fe3O4/SiO2/CdS nanocomposites as efficient magnetic photocatalysts for the reduction of nitro compounds under visible LED irradiation. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.06.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Al-Hussaini AS, Eltabie KR, Hassan MER. Fabrication of core-shell nanocomposites with enhanced photocatalytic efficacy. POLYM INT 2018. [DOI: 10.1002/pi.5662] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ayman S Al-Hussaini
- Chemistry Department, Faculty of Science; Port Said University; Port Said Egypt
| | - Kareem R Eltabie
- Chemistry Department, Faculty of Science; Port Said University; Port Said Egypt
| | - Mohamed ER Hassan
- Chemistry Department, Faculty of Science; Port Said University; Port Said Egypt
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21
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Zhao H, Fang Q, Chen C, Chao Z, Tsang Y, Wu Y. WO3
Quantum Dots Decorated GO/Mg-doped ZnO Composites for Enhanced Photocatalytic Activity under Nature Sunlight. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4449] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Huiyang Zhao
- College of Materials Science and Engineering; Changsha University of Science and Technology; Changsha 410114 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001 China
| | - Qun Fang
- College of Materials Science and Engineering; Changsha University of Science and Technology; Changsha 410114 China
| | - Chuansheng Chen
- College of Materials Science and Engineering; Changsha University of Science and Technology; Changsha 410114 China
| | - Zisheng Chao
- College of Materials Science and Engineering; Changsha University of Science and Technology; Changsha 410114 China
| | - Yuenhong Tsang
- The Hong Kong Polytechnic University Shenzhen Research Institute; Shenzhen China
| | - Yiyong Wu
- School of Materials Science and Engineering; Harbin Institute of Technology; Harbin 150001 China
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22
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Fabrication, physicochemical properties and photocatalytic activity of Ag 0.68 V 2 O 5 hierarchical architecture assembled by ultrathin nanosheets. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.03.055] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Wu Q, Zhou M, Gong Y, Li Q, Yang M, Yang Q, Zhang Z. Three-dimensional bandgap-tuned Ag2S quantum dots/reduced graphene oxide composites with enhanced adsorption and photocatalysis under visible light. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01522h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tuning Ag2S bandgap by quantum size effect and incorporation with rGO to form a three-dimensional composite enhances adsorption and photocatalysis under visible-light.
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Affiliation(s)
- Qian Wu
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Ming Zhou
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Yu Gong
- Shenyang Aircraft Design & Research Institute
- China
| | - Qijun Li
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Mingyang Yang
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Qingfeng Yang
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Zhixun Zhang
- State Key Laboratory of Tribology
- School of Mechanical Engineering
- Tsinghua University
- Beijing 100084
- China
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24
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Lu Z, Yu Z, Dong J, Song M, Liu Y, Liu X, Fan D, Ma Z, Yan Y, Huo P. Construction of stable core–shell imprinted Ag-(poly-o-phenylenediamine)/CoFe2O4 photocatalyst endowed with the specific recognition capability for selective photodegradation of ciprofloxacin. RSC Adv 2017. [DOI: 10.1039/c7ra09835a] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The stable core–shell imprinted Ag-POPD/CoFe2O4 photocatalyst not only possessed high photocatalytic activity, but also exhibited the superior specific recognition capability for selective photodegradation of CIP.
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Affiliation(s)
- Ziyang Lu
- School of the Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
- School of Chemistry & Chemical Engineering
| | - Zehui Yu
- School of the Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Jinbo Dong
- Zhenjiang Water Corporation
- Zhenjiang 212003
- PR China
| | - Minshan Song
- School of Mathematics and Physics
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- PR China
| | - Yang Liu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Changchun 130103
- PR China
| | - Xinlin Liu
- School of Energy and Power Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Di Fan
- Zhenjiang Water Corporation
- Zhenjiang 212003
- PR China
| | - Zhongfei Ma
- School of the Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Yongsheng Yan
- School of Chemistry & Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Pengwei Huo
- School of Chemistry & Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
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