Sulfidated microscale zero-valent iron/reduced graphene oxide composite (S-mZVI/rGO) for enhanced degradation of trichloroethylene: The role of hydrogen spillover
文献类型：期刊论文
| 作者 | Li, Tielong1; Teng, Yaxin1; Li, Xiao1; Luo, Shuangjiang3; Xiu, Zongming2; Wang, Haitao1; Sun, Hongwen1 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2023-03-15 |
| 卷号 | 446页码:9 |
| 关键词 | TCE Sulfidated zerovalent iron Hydrogen spillover Atomic hydrogen |
| ISSN号 | 0304-3894 |
| DOI | 10.1016/j.jhazmat.2022.130657 |
| 英文摘要 | Atomic hydrogen (H*) has long been thought to play an important role in the dechlorination of trichloroethylene (TCE) by carbon-supported zero-valent iron (ZVI), which offers an alternative pathway for TCE dechlorination. Herein, we demonstrate that the reductive dechlorination of TCE by sulfidated microscale ZVI (S-mZVI) can be further enhanced by promoting the formation of H* through the introduction of reduced graphene oxide (rGO). The completely degradation of 10 mg/L TCE can be achieved by S-mZVI/rGO within 24 h, which was 3.3 times faster than that of S-mZVI. The change in the distribution of TCE degradation products over time suggests that the introduction of rGO leads to a change in the dechlorination pathway. The percentage of ethane in the final products of TCE degradation by S-mZVI/rGO was 34.3 %, while that of S-mZVI was only 21.9 %. The electrochemical tests confirmed the occurrence of hydrogen spillover in the S-mZVI/rGO composite, which promoted the reductive dechlorination of TCE by H*. Although the S-mZVI/rGO composite had stronger hydrogen evolution propensity than S-mZVI, the S-mZVI/rGO composite still exhibited higher electron utilization efficiency than S-mZVI thanks to the increased utilization of hydrogen. |
| WOS关键词 | IRON SULFIDE ; WATER ; DECHLORINATION ; MECHANISM ; KINETICS ; NANOCOMPOSITE ; REMEDIATION ; EFFICIENCY ; CATALYST ; REMOVAL |
| 资助项目 | National Natural Science Foundation of China[42277056] ; National Natural Science Foundation of China[22036004] ; National Key R & D Program of China[2018YFC1802001] ; NCC Fund[NCC2020PY16] ; Funda-mental Research Funds for the Central Universities Nankai University |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000913577500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key R & D Program of China ; NCC Fund ; Funda-mental Research Funds for the Central Universities Nankai University |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56727]  |
| 通讯作者 | Wang, Haitao |
| 作者单位 | 1.Nankai Univ, Coll Environm Sci & Engn, Key Lab Pollut Proc & Environm Criteria, Tianjin Key Lab Environm Technol Complex Transmedi, Tianjin 300350, Peoples R China 2.Qingdao Univ, Sch Environm Sci & Engn, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Tielong,Teng, Yaxin,Li, Xiao,et al. Sulfidated microscale zero-valent iron/reduced graphene oxide composite (S-mZVI/rGO) for enhanced degradation of trichloroethylene: The role of hydrogen spillover[J]. JOURNAL OF HAZARDOUS MATERIALS,2023,446:9. |
| APA | Li, Tielong.,Teng, Yaxin.,Li, Xiao.,Luo, Shuangjiang.,Xiu, Zongming.,...&Sun, Hongwen.(2023).Sulfidated microscale zero-valent iron/reduced graphene oxide composite (S-mZVI/rGO) for enhanced degradation of trichloroethylene: The role of hydrogen spillover.JOURNAL OF HAZARDOUS MATERIALS,446,9. |
| MLA | Li, Tielong,et al."Sulfidated microscale zero-valent iron/reduced graphene oxide composite (S-mZVI/rGO) for enhanced degradation of trichloroethylene: The role of hydrogen spillover".JOURNAL OF HAZARDOUS MATERIALS 446(2023):9. |
入库方式： OAI收割
来源：过程工程研究所
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