A "bottle-around-ship" like method synthesized yolk-shell Ag3PO4@MIL-53(Fe) Z-scheme photocatalysts for enhanced tetracycline removal

被引：68
|
作者：
Li, Xiaopei [1 ,2 ]
Zeng, Zhuotong [3 ]
Zeng, Guangming [1 ,2 ]
Wang, Dongbo [1 ,2 ]
Xiao, Rong [3 ]
Wang, Yingrong [1 ,2 ]
Zhou, Chenyun [1 ,2 ]
Yi, Huan [1 ,2 ]
Ye, Shujing [1 ,2 ]
Yang, Yang [1 ,2 ]
Xiong, Weiping [1 ,2 ]
机构：
[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Minist Educ, Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China
[3] Cent South Univ, Xiangya Hosp 2, Dept Dermatol, Changsha 410011, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2020年 / 561卷
基金：
中国国家自然科学基金;
关键词：
Ag3PO4; MIL-53(Fe); Yolk-shell structure; Z-scheme photocatalyst; Tetracycline; HETEROJUNCTION PHOTOCATALYSTS; IRON TEREPHTHALATE; CARBON NITRIDE; QUANTUM DOTS; RHODAMINE-B; WASTE-WATER; DEGRADATION; METAL; EFFICIENT; DRIVEN;
D O I：
10.1016/j.jcis.2019.11.025
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel yolk-shell Ag3PO4@MIL-53(Fe) Z-scheme photocatalyst was fabricated via a "bottle-around-ship" like method. Experiments on the treatment of tetracycline upon visible light irradiation showed that the as-prepared photocatalyst possessed excellent photocatalytic performance. Experimental results showed that tetracycline removal efficiency of the yolk-shell Ag3PO4@MIL-53(Fe) Z-scheme photocatalyst was almost 3 times higher than that of MIL-53(Fe). The enhanced photocatalytic performance of Ag3PO4@MIL-53(Fe) nanocomposite could be contributed to its higher surface area, better absorption capability, and greater charge separation efficiency. In addition, the H 2 0 2 concentration detection results for Ag3PO4(154 umol/L) and Ag3PO4@MIL-53(Fe) (52 mu mol/L) indicated that a big part of generated H2O2 on the Ag3PO4 core would be quickly decomposed by the MIL-53(Fe) shell and generated more reactive species through the photo-Fenton-like reaction, which is beneficial for the improvement of photocatalytic performance. This is a promising approach to fabricate yolk-shell structure photocatalyst and a different aspect to design multiple semiconductor composites heterojunction for environmental remediation. (C) 2019 Elsevier Inc. All rights reserved.
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收藏
页码：501 / 511
页数：11
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