One step synthesis of Bi@Bi2O3@carboxylate-rich carbon spheres with enhanced photocatalytic performance |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China;2. School of the Environment, Jiangsu University, Zhenjiang 212013, PR China;3. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, PR China;4. Maple Leaf International High School, Zhenjiang 212013, PR China;1. College of Environment, Zhejiang University of Technology, Hangzhou 310014, China;2. Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;3. Ningbo Research Institute, Zhejiang University, Ningbo 315100, China;1. School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China;2. Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;1. School of Environment, Henan Normal University, Xinxiang, Henan 453007, PR China;2. Department of Chemistry, Xinxiang Medical University, Xinxiang, Henan 453003, PR China;3. School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China;1. School of Chemical Engineering, Sichuan University, Chengdu 610065, Sichuan, China;2. Insitute of New Energy and Low-carbon Technology, Sichuan University, Chengdu 610065, Sichuan, China;3. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC;4. Department of Physics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, ROC;5. Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC;1. Chongqing Key Laboratory of Catalysis and New Environmental Materials, Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China;2. State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;3. Department of Environmental Engineering, Key Laboratory of Environment Remediation and Ecological Health of Ministry of Education, Zhejiang University, Hangzhou 310058, China |
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| Abstract: | Bi@Bi2O3@carboxylate-rich carbon core-shell nanosturctures (Bi@Bi2O3@CRCSs) have been synthesized via a one-step method. The core–shell nanosturctures of the as-prepared samples were confirmed by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and Raman spectroscopy. The formation of Bi@Bi2O3@CRCSs core–shell nanosturctures should attribute to the synergetic roles of different functional groups of sodium gluconate. Bi@Bi2O3@CRCSs exhibits significant enhanced photocatalytic activity under visible light irradiation (λ > 420 nm) and shows an O2-dependent feature. According to trapping experiments of radicals and holes, hydroxyl radicals were not the main active oxidative species in the photocatalytic degradation of MB, but O2 ? are the main active oxidative species. |
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| Keywords: | A Nanostructures A Composites B Chemical synthesis D Catalytic properties |
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