3-D hierarchical Ag/ZnO@CF for synergistically removing phenol and Cr (VI): Heterogeneous vs. homogeneous photocatalysis
文献类型：期刊论文
| 作者 | Liang, He; Li, Tianren; Zhang, Jun; Zhou, Dandan; Hu, Chengzhi; An, Xiaoqiang; Liu, Ruiping; Liu, Huijuan |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2020-01-15 |
| 卷号 | 558页码:85-94 |
| 关键词 | Photocatalysis Hierarchical porous structure Multiplex pollution LMCT Phenol-chromate(VI) ester |
| ISSN号 | 0021-9797 |
| 英文摘要 | Synergistic photocatalysis offers great potential for simultaneously treating organic and heavy metal pollutants. Although considerable progress has been made, this technology is seriously restricted by the poor photoactivity of heterogeneous catalysts, and the contribution from homogeneous intermoleculars has been overlooked. In this paper, the Ag/ZnO@CF with 3-D hierarchical porous structure was fabricated and used to synergistically remove phenol and Cr(VI) from water. Due to the enhanced mass transfer and cocatalysts-facilitated charge separation, 3-D photocatalysts exhibited significantly improved activity for heterogeneous photocatalysis. Furthermore, both experimental characterizations and DFT calculations evidenced the formation of phenol-chromate(VI) esters with ligand-to-metal charge transfer from benzene ring to central chromium ion under photoexcitation. Thereafter, the effects of heterogeneous and homogeneous photocatalysis on the treatment efficiency of multiplex pollutants were investigated. In an ideal scenario, 2.4 and 2.3 times higher phenol and Cr(VI) removal rate were achieved compared to single catalytic reactions. This work not only offers new material strategy for photocatalyst exploration, but also provides new insights into the multiphase homogeneous catalysis contributed by intermolecular interactions. (C) 2019 Elsevier Inc. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44894]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liang, He,Li, Tianren,Zhang, Jun,et al. 3-D hierarchical Ag/ZnO@CF for synergistically removing phenol and Cr (VI): Heterogeneous vs. homogeneous photocatalysis[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2020,558:85-94. |
| APA | Liang, He.,Li, Tianren.,Zhang, Jun.,Zhou, Dandan.,Hu, Chengzhi.,...&Liu, Huijuan.(2020).3-D hierarchical Ag/ZnO@CF for synergistically removing phenol and Cr (VI): Heterogeneous vs. homogeneous photocatalysis.JOURNAL OF COLLOID AND INTERFACE SCIENCE,558,85-94. |
| MLA | Liang, He,et al."3-D hierarchical Ag/ZnO@CF for synergistically removing phenol and Cr (VI): Heterogeneous vs. homogeneous photocatalysis".JOURNAL OF COLLOID AND INTERFACE SCIENCE 558(2020):85-94. |
入库方式： OAI收割
来源：生态环境研究中心
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