| 亚硫酸盐协助中空Bi2WO6微球的光催化性能 |
| |
| 引用本文： | 莫乔斐,周楚欣,吴春蓓,杨骏. 亚硫酸盐协助中空Bi2WO6微球的光催化性能[J]. 化学研究与应用, 2020, 32(1): 51-56. DOI: 10.3969/j.issn.1004-1656.2020.01.008 |
| |
| 作者姓名： | 莫乔斐 周楚欣 吴春蓓 杨骏 |
| |
| 作者单位： | 暨南大学化学与材料学院化学系,广东 广州 510632;暨南大学化学与材料学院化学系,广东 广州 510632;暨南大学化学与材料学院化学系,广东 广州 510632;暨南大学化学与材料学院化学系,广东 广州 510632 |
| |
| 摘 要： | 本文利用亚硫酸盐与Bi2WO6协同作用,有效地提升其光催化活性。以甲基橙和抗生素环丙沙星(CIP)作为被降解物对该体系的光催化降解性能和机理进行了研究。结果表明:光催化活性增强主要原因为亚硫酸盐能与Bi2WO6的光生空穴及羟基自由基反应,不仅能生成新的活性物质亚硫酸自由基(SO3^2-),还能促进Bi2WO6光生电子—空穴对的分离。此外,还考察了催化剂的用量、和污染物的浓度对该体系光催化性能的影响。
|
| 关 键 词： | Bi2WO6 亚硫酸盐 光催化 有机污染 |
Photocatalytic performance of sulphite-assisted hollow Bi2WO6 microspheres |
| |
| MO Qiao-fei,ZHOU Chu-xin,WU Chun-bei,YANG Jun. Photocatalytic performance of sulphite-assisted hollow Bi2WO6 microspheres[J]. Chemical Research and Application, 2020, 32(1): 51-56. DOI: 10.3969/j.issn.1004-1656.2020.01.008 |
| |
| Authors: | MO Qiao-fei ZHOU Chu-xin WU Chun-bei YANG Jun |
| |
| Affiliation: | (Department of Chemistry,College of Chemistry and Materials,Jinan University,Guangzhou 510632,China) |
| |
| Abstract: | Introducing sulfite into photocatalyst to form Bi2WO6/sulfite system,photoactivity of Bi2WO6 has been effectively enhanced due to a synergistic effect between sulfite and Bi2WO6.The photocatalytic performance and degradation mechanism of this system were studied with methyl orange and ciprofloxacin(CIP)as the degraded targets.Results showed that the main reasons for the enhancement of photocatalytic activity are as follows.Sulfite can react with photo-generated hole(h^+)and hydroxyl free derived from Bi2WO6,which not only to produce a new active substance,the free radical sulphite(SO3^2-),but also to promote the separation of photo-generated electron-hole pairs.The effects of the catalyst dosage and the concentration of MO on the photocatalytic properties of the system were also investigated. |
| |
| Keywords: | Bi2WO6 sulfite Photocatalysis organic pollutants |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
