Enhanced visible-light-driven photocatalytic sterilization of tungsten trioxide by surface-engineering oxygen vacancy and carbon matrix
文献类型：期刊论文
| 作者 | Wang, Jianlong2; Suo, Yourui1 ; Hu, Na1; Chen, Kai2; Li, Sihang2; Yan, Lingzhi2; Zhu, Wenxin2; Zhang, Wentao2; Wang, Rong2
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2018-09-15 |
| 卷号 | 348页码:292-300 |
| ISSN号 | 1385-8947 |
| 关键词 | Wo3 Oxygen Vacancies Carbon Matrix Sterilization Photocatalyst |
| DOI | 10.1016/j.cej.2018.05.010 |
| 文献子类 | Article |
| 英文摘要 | Defect WO3-carbon hybrid nanosheets (D-WO3@C), synthesized by a facile hydrothermal method, is utilized as an effective visible-light driven photocatalyst for sustainable inactivation of bacteria. Detailed characterization through SEM-EDS, XRD, FT-IR, HRTEM, and XPS confirmed the formation of the nanohybrids. As a result, the as-synthesized D-WO3@C exhibited the best sterilization efficiency among all of the WO3 photocatalysts, and 7 log inactivation of E. coli or S. aureus was obtained after treating samples for 45 min with 1000 mu g/mL D-WO3@C. It was found that D-WO3@C exhibited enhanced visible-light-driven photocatalytic sterilization in killing bacteria compared with D-WO3 and P-WO3. The results show that the oxygen vacancies and carbon matrix were able to promote photocatalytic performance by triggering a faster interfacial transfer and a higher efficient separation of electron-hole pairs, which most likely is the reason behind the improved bactericidal effect. Furthermore, fluorescent-based cell viability/death tests and SEM technology were employed to demonstrate the lethal effect as well as the integrity of bacterial membranes during photocatalytic process. Photoelectrochemical techniques and UV-visible diffuse reflectance revealed the efficient separation of electron-hole pairs between D-WO3 and carbon matrix. More importantly, after being tested in four cycles, D-WO3@C showed good photocatalytic performance due to its chemical stability. The excellent properties associated with the novel D-WO3/C indicated that they could be considered as a promising light-visible driven photocatalyst to remove, in practice, microbial contamination of water. |
| WOS关键词 | GRAPHENE OXIDE ; HIERARCHICAL NANOSTRUCTURES ; WATER-PURIFICATION ; WO3 NANOSHEETS ; NANOPARTICLES ; DISINFECTION ; TIO2 ; PERFORMANCE ; FABRICATION ; COMPOSITES |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000434467000029 |
| 资助机构 | National Natural Science Foundation of China(21675127) ; Development Project of Qinghai Key Laboratory(2017-ZJ-Y10) |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/13808]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 通讯作者 | Wang, Jianlong |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Key Lab Qinghai Tibet Plateau Biol Resour, Xining 810008, Qinghai, Peoples R China 2.Northwest A&F Univ, Coll Food Sci & Engn, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jianlong,Suo, Yourui,Hu, Na,et al. Enhanced visible-light-driven photocatalytic sterilization of tungsten trioxide by surface-engineering oxygen vacancy and carbon matrix[J]. CHEMICAL ENGINEERING JOURNAL,2018,348:292-300. |
| APA | Wang, Jianlong.,Suo, Yourui.,Hu, Na.,Chen, Kai.,Li, Sihang.,...&Wang, Rong.(2018).Enhanced visible-light-driven photocatalytic sterilization of tungsten trioxide by surface-engineering oxygen vacancy and carbon matrix.CHEMICAL ENGINEERING JOURNAL,348,292-300. |
| MLA | Wang, Jianlong,et al."Enhanced visible-light-driven photocatalytic sterilization of tungsten trioxide by surface-engineering oxygen vacancy and carbon matrix".CHEMICAL ENGINEERING JOURNAL 348(2018):292-300. |
入库方式： OAI收割
来源：西北高原生物研究所
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