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Sun Z, Zhang X, Yang Z, Ma X, Mei R, Zhang X, Tan Y, Liang J, Li C. Efficient peroxymonosulfate activation of immobilized Fe-N-C catalyst on ceramsite for the continuous flow removal of phenol. CHEMOSPHERE 2022; 307:136149. [PMID: 36029862 DOI: 10.1016/j.chemosphere.2022.136149] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 08/10/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Nowadays, developing environmentally friendly catalysts with both low cost and high efficiency was still a challenge in actual organic wastewater purification. Herein, the Fe-N-C catalyst was successfully immobilized on solid waste derived ceramsite for efficient degradation of phenol under continuous flow conditions by activating peroxymonosulfate (PMS). After the introduction of ceramsite, the microstructure of Fe-N-C catalyst was changed from granular structure to worm-like structure, promoting the dispersion of the nanoscale catalyst and providing more reactive sites. Therefore, the phenol removal rate and mineralization rate of the obtained 0.5FNNC within 30 min were up to 96.79% and 71.79%, respectively. In addition, the degradation rate of the optimal composite (0.5FNNC)/PMS system was about 4.06 times higher than that of bare Fe-N-C/PMS system. Intriguingly, the Fe ion leaching from 0.5FNNC during the degradation reaction was significantly lower than bare Fe-N-C owing to the strong catalyst-support chemical bonding. Based on electron paramagnetic resonance, quenching experiments, X-ray photoelectron spectroscopy analysis and electrochemical analysis, it was indicated that the non-radical processes (1O2 and high valent iron-oxo species) should be responsible for the phenol degradation. Meanwhile, the possible phenol degradation pathways were proposed, and the intermediates were evaluated for ecotoxicity by ECOSAR. Finally, a preliminary economic analysis of this process was carried out. Overall, this work would provide a new strategy for the construction of ceramsite based multi-pore composite catalysts and the large-scale application of persulfate oxidation technology in organic wastewater treatment.
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Affiliation(s)
- Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Xinchao Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Zhongqing Yang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China; Gansu Construction Investment (Holdings) Group Corporation Mining Co. Ltd, Lanzhou, 730000, PR China
| | - Xin Ma
- Water Conservancy Science Research Institute of Inner Mongolia, Hohhot, 010018, China
| | - Ruifeng Mei
- Water Conservancy Science Research Institute of Inner Mongolia, Hohhot, 010018, China
| | - Xiangwei Zhang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Ye Tan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Jialin Liang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China.
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Li T, Fan J, Sun T. Effective removal of methylene blue dye from water with nanocomposite ceramsites in a fixed-bed column. ENVIRONMENTAL TECHNOLOGY 2021; 42:3807-3819. [PMID: 32167410 DOI: 10.1080/09593330.2020.1743368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
The study aims to remove methylene blue dye from water with a fixed-bed column packed with Cu2O nanocomposite ceramsites. The column showed the advantages of fixed-bed column adsorption and photocatalytic oxidation. The Cu2O nanocomposite ceramsites with strong photocatalytic oxidation activity and well-developed porous structure were successfully prepared with the chemical vapour deposition process, which also met with the China's industrial standard of CJ/T 299-2008 and China's national standard of GB 5085.3-2007. In the column experiments under the experimental conditions (initial pH was 3, reaction temperature was 25°C and flow rate was 33 mL/min), the breakthrough curve was much more smooth. The breakthrough time and saturation time under ultraviolet radiation were 36.0% and 26.83% longer than those under the conditions without ultraviolet radiation, because the micro-pore structure of ceramsite was closely related to optical excitation properties of nano-Cu2O. The Yoon-Nelson and Adams-Bohart models were applied to describe the obtained breakthrough curves using non-linear regression, in which the Yoon-Nelson model gave the better prediction results for breakthrough curves, with R2>0.98. Besides, amines were the dominant intermediates at saturation point and final products were inorganic anions. This study confirmed that the fixed-bed column packed with Cu2O nanocomposite ceramsites could efficiently treat methylene blue dye wastewater, due to the structure-function relationship between ceramsite and nano-Cu2O.
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Affiliation(s)
- Tianpeng Li
- School of Environment, Henan Normal University, Xinxiang, People's Republic of China
- College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, People's Republic of China
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Shandong University, Qingdao, People's Republic of China
| | - Jing Fan
- School of Environment, Henan Normal University, Xinxiang, People's Republic of China
| | - Tingting Sun
- College of Food Science and Pharmaceutical Engineering, Zaozhuang University, Zaozhuang, People's Republic of China
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Free-standing Ag nanoparticle-decorated MoS2 microflowers grown on carbon cloth for photocatalytic oxidation of Rhodamine B. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0705-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Fabrication of MCC/Cu2O/GO composite foam with high photocatalytic degradation ability toward methylene blue. Carbohydr Polym 2019; 223:115101. [DOI: 10.1016/j.carbpol.2019.115101] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/15/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023]
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Microwave assisted rapid green synthesis of gold nanoparticles using Annona squamosa L peel extract for the efficient catalytic reduction of organic pollutants. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.004] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Saikia S, Gogoi P, Borah R. 1,3-Disulfoimidazolium chloronickellate immobilized HZSM-5 framework as visible-light-induced heterogeneous photocatalyst for advanced oxidation process. NEW J CHEM 2018. [DOI: 10.1039/c7nj03135a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid photocatalysts of [Dsim]2[NiCl4]/HZSM-5 were prepared by wet impregnation and their application is demonstrated as feasible heterogeneous photocatalysts for oxidative degradation of methylene blue under sunlight.
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Affiliation(s)
- Susmita Saikia
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028, Sonitpur
- India
| | - Pinky Gogoi
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028, Sonitpur
- India
| | - Ruli Borah
- Department of Chemical Sciences
- Tezpur University
- Napaam-784028, Sonitpur
- India
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