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Mesoporous amorphous FeOOH-encapsulated BiO_(2–x) photocatalyst with harnessing broad spectrum toward activation of persulfate for tetracycline degradation

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Chinese Journal of Chemical Engineering 2024年第7期71卷 235-248页

作者： Pengfei Wu Zhaolong Liu Li Wu Yingkun Zhang Bing Wang Zhanghao Cheng Wenquan Cui Xiangyang Lv Qingling Liu Tianjin Key Laboratory of Indoor Air Environmental Quality control School of Environmental Science and EngineeringTianjin UniversityTianjin 300350China hebei pollution control technology innovation center of steel and coking industry Department of Environmental and Chemical EngineeringHebei College of Industry and TechnologyShijiazhuang 050091China hebei Key Laboratory of Environmental Photocatalytic and Electrocatalytic Materials College of Chemical EngineeringNorth China University of Science and TechnologyTangshan 063210China hebei Academy of Product Quality Supervision&Inspection Shijiazhuang 050227China

With the growing concern about the water environment,the advanced oxidation process of persulfate activation assisted by photocatalysis has attracted considerable attention to decompose dissolved organic *** this work,to overcome the drawbacks of the photocatalytic activity reduction caused by the photo-corrosion of non-stoichiometric BiO_(2–x),a novel material with amorphous FeOOH in situ grown on layered BiO_(2–x) to form a core-shell structure similar to popcorn chicken-like morphology was produced in two simple and environmentally beneficial *** a series of degradation activity tests of hybrid materials under different conditions,the as-prepared materials exhibited remarkable degradation activity and stability toward tetracycline in the FeOOH@BiO_(2–x)/Vis/PS system due to the synergism of photocatalysis and persulfate *** results of XRD,SEM,TEM,XPS,FTIR,and BET show that the loading of FeOOH increases the specific surface area and active sites appreciably;the heterogeneous structure formed by FeOOH and BiO_(2–x) is more favorable to the effective separation of photogenerated *** optimal degradation conditions were at a catalyst addition of 0.7 g·L^(–1),a persulfate concentration of 1.0 g·L^(–1),and an initial pH of 4.5,at which the degradation rate could reach 94.7%after 90 *** influence of typical inorganic anions on degradation was also *** studies and radical quenching experiments revealed that·OH,SO_(4)^(-)·,and·O_(2)^(-)were the principal active species generated during the degradation of *** results of the 1,10-phenanthroline approach proved that the effect of dissolved iron ions on the tetracycline degradation was limited,and the interfacial reaction that occurs on the active sites on the material's surface was a critical *** work provides a novel method for producing efficient broad-spectrum Bismuth-based composite photocatalysts and photocatalytic-activated persulfate synerg

关键词： Amorphous FeOOH BiO_(2–x) Activated persulfate Photocatalytic Tetracycline degradation

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中国钢铁工业减污降碳协同控制技术发展与展望

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Engineering 2023年第12期31卷 37-49页

作者： Tingyu Zhu Xiaolong Liu Xindong Wang Hong He CAS Key Laboratory of Green Process and Engineering Institute of Process EngineeringInnovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China State Key Joint Laboratory of Environment Simulation and pollution control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China HBIS Group Co. Ltd.Shijiazhuang 050023China

As the largest steel-producing country,China’s steel industry has experienced rapid development in terms of production level and *** to the high consumption of coal in the iron and steel industry,air pollutants and carbon dioxide(CO_(2))show similar emission properties in flue *** view of the collaborative reduction of pollution and carbon emissions,the emission standards for pollutants and carbon were first analyzed,suggesting that carbon emission standards for the iron and steel industry should be accelerated.A collaborative technology system for the reduction of pollution and carbon emissions from the iron and steel industry in China is demonstrated,consisting of(1)optimization of present ultra-low emission technology,(2)low-carbon innovation for present production processes,(3)steel production process reengineering,and(4)carbon capture,utilization,and storage(CCUS).Finally,the technical prospect for collaborative reduction of pollution and carbon emissions from the iron and steel industry in China is suggested to support high-quality green development in this industry.

关键词： Iron andsteelindustry pollution Carbon emissions Collaborative reduction

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中国钢铁工业减污降碳协同控制技术发展与展望（英文）

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Engineering 2023年第12期 37-49页

作者： Tingyu Zhu Xiaolong Liu Xindong Wang Hong He CAS Key Laboratory of Green Process and Engineering Institute of Process Engineering Innovation Academy for Green Manufacture Chinese Academy of Sciences center for Excellence in Regional Atmospheric Environment Institute of Urban Environment Chinese Academy of Sciences HBIS Group Co. Ltd. State Key Joint Laboratory of Environment Simulation and pollution control Research Center for Eco-Environmental Sciences Chinese Academy of Sciences

As the largest steel-producing country, China’s steel industry has experienced rapid development in terms of production level and quality. Owing to the high consumption of coal in the iron and steel industry, air pollutants and carbon dioxide(CO2) show similar emission properties in flue gas. In view of the collaborative reduction of pollution and carbon emissions, the emission standards for pollutants and carbon were first analyzed, suggesting that carbon emission standards for the iron and steel industry should be accelerated. A collaborative technology system for the reduction of pollution and carbon emissions from the iron and steel industry in China is demonstrated, consisting of(1) optimization of present ultra-low emission technology,(2) low-carbon innovation for present production processes,(3) steel production process reengineering, and(4) carbon capture, utilization, and storage(CCUS). Finally, the technical prospect for collaborative reduction of pollution and carbon emissions from the iron and steel industry in China is suggested to support high-quality green development in this industry.

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