Lanzhou University of Technology Institutional Repository (LUT_IR)
Growth process and enhanced photocatalytic performance of CuBi2O4 hierarchical microcuboids decorated with AuAg alloy nanoparticles | |
Wang, Fei1,2; Yang, Hua1,2; Zhang, Haimin2; Jiang, Jinlong2 | |
2018-01 | |
发表期刊 | JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS |
ISSN | 0957-4522 |
卷号 | 29期号:2页码:1304-1316 |
摘要 | CuBi2O4 hierarchical microcuboids self-assembled from nanorods were synthesized via a coprecipitation method, and their growth process was investigated. The as-synthesized CuBi2O4 hierarchical microcuboids were decorated with AuAg alloy nanoparticles via a photocatalytic reduction method. The prepared samples were systematically investigated by XRD, SEM, TEM, XPS, UV-vis DRS, EIS, PL spectroscopy and photocurrent response. RhB was chosen as the target organic pollutant to evaluate the photocatalytic activity of the samples under simulated-sunlight irradiation. It is demonstrated that the prepared CuBi2O4 samples exhibit excellent photocatalytic activity toward the degradation of RhB. Furthermore, the decoration of AuAg alloy nanoparticles on CuBi2O4 hierarchical microcuboids leads to much enhanced photocatalytic performance of the resultant AuAg-CuBi2O4 composite. The main reason for this is that the recombination rate of photogenerated electron-hole pairs is decreased due to the electron transfer from CuBi2O4 microcuboids to AuAg nanoparticles, and thus more charges are able to participate in the photocatalytic reactions. The effect of ethanol (scavenger of center dot OH), BQ (scavenger of center dot O-2(-)) and AO (scavenger of h(+)) on the dye degradation and the yield of center dot OH was also investigated. Based on the experimental results, it is confirmed that center dot OH is the dominant reactive species responsible for the dye degradation. The underlying photocatalytic mechanism was discussed. |
关键词 | Binary alloys Bismuth alloys Gold alloys Nanoparticles Nanorods Organic pollutants Photocatalytic activity Silver alloys Synthesis (chemical) Au-Ag alloy nanoparticles Coprecipitation method Excellent photocatalytic activities Photocatalytic performance Photocatalytic reactions Photocatalytic reduction Photocurrent response Photogenerated electrons |
DOI | 10.1007/s10854-017-8036-6 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[51662027] |
WOS研究方向 | Engineering ; Materials Science ; Physics |
WOS类目 | Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000422863600054 |
出版者 | SPRINGER |
EI入藏号 | 20174304310110 |
EI主题词 | Copper alloys |
EI分类号 | 544.2 Copper Alloys - 547.1 Precious Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 761 Nanotechnology - 802.2 Chemical Reactions - 804.1 Organic Compounds - 933 Solid State Physics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/32864 |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 理学院 设计艺术学院 |
通讯作者 | Yang, Hua |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 理学院 |
通讯作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 理学院 |
第一作者的第一单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
推荐引用方式 GB/T 7714 | Wang, Fei,Yang, Hua,Zhang, Haimin,et al. Growth process and enhanced photocatalytic performance of CuBi2O4 hierarchical microcuboids decorated with AuAg alloy nanoparticles[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2018,29(2):1304-1316. |
APA | Wang, Fei,Yang, Hua,Zhang, Haimin,&Jiang, Jinlong.(2018).Growth process and enhanced photocatalytic performance of CuBi2O4 hierarchical microcuboids decorated with AuAg alloy nanoparticles.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,29(2),1304-1316. |
MLA | Wang, Fei,et al."Growth process and enhanced photocatalytic performance of CuBi2O4 hierarchical microcuboids decorated with AuAg alloy nanoparticles".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 29.2(2018):1304-1316. |
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