Few-layered Bi4O5I2 nanosheets enclosed by {10-1} facets with oxygen vacancies for highly-efficient removal of water contaminants
文献类型：期刊论文
| 作者 | Zhang, Lili ; Zhai, Tingting; Yang, Min; Hu, Chun
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-09-05 |
| 卷号 | 437期号:0页码:129274 |
| ISSN号 | 0304-3894 |
| 关键词 | ENHANCED PHOTOCATALYTIC ACTIVITY RICH BISMUTH OXYHALIDES REDUCED GRAPHENE OXIDE IN-SITU PREPARATION DEGRADATION PERFORMANCE STEP CIPROFLOXACIN CONSTRUCTION |
| 英文摘要 | Few-layered Bi4O5I2 nanosheets (FL-Bi4O5I2) were synthesized by intergrowth with Bi2O2CO3 under room temperature. The photoactivity of FL-Bi4O5I2 was 2.5 and 9.5 times higher than that of Bi4O5I2 nanoflakes (NF-Bi4O5I2, about 30 nm thickness) and standard visible-light-driven N-TiO2, respectively. Moreover, FL-Bi4O5I2 exhibited a wide pH application range (3.0 - 10.0) and excellent photostability. The characterization results showed FL-Bi4O5I2 was consisted of 5 - 8 layers with thickness of 4 - 7 nm and enclosed by {1 0 -1} facets. The ultrathin characteristics could accelerate the charge transfer to the surface due to the shortened transport distance. Compared to NF-Bi4O5I2, surface oxygen vacancies and the more negative CB potential were formed on FL-Bi4O5I2. The photogenerated electrons were confirmed to be captured by surface oxygen vacancies to effectively reduce surface adsorbed O-2 into HO2 center dot/O-2(center dot-), leaving more h(+) to oxidize organic pollutants. This process was further facilitated by the more negative CB potential of FL-Bi4O5I2, resulting in the highly efficient removal of pollutants. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47852]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 通讯作者 | Hu, Chun |
| 作者单位 | 1.Guangzhou Univ, Inst Environm Res Greater Bay, Key Lab Water Qual & Conservat Pearl River Delta, Minist Educ, Guangzhou 510006, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lili,Zhai, Tingting,Yang, Min,et al. Few-layered Bi4O5I2 nanosheets enclosed by {10-1} facets with oxygen vacancies for highly-efficient removal of water contaminants[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,437(0):129274. |
| APA | Zhang, Lili,Zhai, Tingting,Yang, Min,&Hu, Chun.(2022).Few-layered Bi4O5I2 nanosheets enclosed by {10-1} facets with oxygen vacancies for highly-efficient removal of water contaminants.JOURNAL OF HAZARDOUS MATERIALS,437(0),129274. |
| MLA | Zhang, Lili,et al."Few-layered Bi4O5I2 nanosheets enclosed by {10-1} facets with oxygen vacancies for highly-efficient removal of water contaminants".JOURNAL OF HAZARDOUS MATERIALS 437.0(2022):129274. |
入库方式： OAI收割
来源：生态环境研究中心
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