Adsorption-photocatalytic degradation and kinetic of sodium isobutyl xanthate using the nitrogen and cerium co-doping TiO2-coated activated carbon
文献类型：期刊论文
| 作者 | Bian, Zhenzhong2; Feng, Yali2; Li, Haoran1; Yu, Hao2; Wu, Hao2 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2021 |
| 卷号 | 263页码:13 |
| ISSN号 | 0045-6535 |
| 关键词 | Nitrogen and cerium Co-doped TiO2 Activated carbon Photocatalytic degradation Sodium isobutyl xanthate |
| DOI | 10.1016/j.chemosphere.2020.128254 |
| 英文摘要 | At present, the excessive use of sodium isobutyl xanthate (SIBX) in mineral processing has caused serious environmental problems, drawing ever-growing concern in China. A nitrogen and cerium co-doped TiO2-coated activated carbon (Ce/N-TiO2@AC) heterojunction were prepared through the sol-gel method to address these problems. The photocatalyst was characterized using XRD, TEM, SEM-EDS, PL, UV-Vis, XPS and a series of photoelectrochemical techniques. The results show that Ce/N-TiO2@AC photocatalyst possess a stable anatase phase, narrow band gap energy (2.24-2.61 eV) and high charge transport process. The photocatalytic activity of the photocatalyst was evaluated based on photodegradation kinetic studies of SIBX in aqueous solution, and it is found that it followed the Langmuir-Hinshelwood model very well. The Ce/N-TiO2@AC photocatalyst with 2% Ce appears to be the highest removal rate with 96.3% of SIBX and an apparent rate constant of 78.4 x 10(-3) min(-1). The reusability experiment for its potential applications was studied, and the removal rate of SIBX reached 95.8% after the fifth cycle. Besides, the proposed mechanism and degradation routes of SIBX were systematically studied, and certificate the concentration of SO42- ions in the final water sample was 95.9 mg/L, which was basically consistent with the theoretical value. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS关键词 | VISIBLE-LIGHT RESPONSE ; TIO2 PHOTOCATALYST ; WATER-TREATMENT ; MECHANISM ; ELIMINATION ; FABRICATION ; REDUCTION ; CATALYST ; TITANIA ; SURFACE |
| 资助项目 | China Ocean Mineral Resources RD Association[DY135-B2-15] ; Major Science and Technology Program for Water Pollution Control and Treatment[2015ZX07205-003] ; National Natural Science Foundation of China[21176242] ; National Natural Science Foundation of China[21176026] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000595802200305 |
| 资助机构 | China Ocean Mineral Resources RD Association ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42970]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Feng, Yali |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bian, Zhenzhong,Feng, Yali,Li, Haoran,et al. Adsorption-photocatalytic degradation and kinetic of sodium isobutyl xanthate using the nitrogen and cerium co-doping TiO2-coated activated carbon[J]. CHEMOSPHERE,2021,263:13. |
| APA | Bian, Zhenzhong,Feng, Yali,Li, Haoran,Yu, Hao,&Wu, Hao.(2021).Adsorption-photocatalytic degradation and kinetic of sodium isobutyl xanthate using the nitrogen and cerium co-doping TiO2-coated activated carbon.CHEMOSPHERE,263,13. |
| MLA | Bian, Zhenzhong,et al."Adsorption-photocatalytic degradation and kinetic of sodium isobutyl xanthate using the nitrogen and cerium co-doping TiO2-coated activated carbon".CHEMOSPHERE 263(2021):13. |
入库方式： OAI收割
来源：过程工程研究所
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