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

Xiaopei Li; Zhuotong Zeng; Guangming Zeng; Dongbo Wang; Rong Xiao; Yingrong Wang; Chenyun Zhou; Huan Yi; Shujing Ye; Yang Yang; Weiping Xiong

doi:10.1016/j.jcis.2019.11.025

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

J Colloid Interface Sci. 2020 Mar 1:561:501-511. doi: 10.1016/j.jcis.2019.11.025. Epub 2019 Nov 8.

Authors

Xiaopei Li¹, Zhuotong Zeng², Guangming Zeng³, Dongbo Wang⁴, Rong Xiao⁵, Yingrong Wang¹, Chenyun Zhou¹, Huan Yi¹, Shujing Ye¹, Yang Yang¹, Weiping Xiong¹

Affiliations

¹ College of Environmental Science and Engineering, Hunan University and Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
² Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha 410011, PR China.
³ College of Environmental Science and Engineering, Hunan University and Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China. Electronic address: zgming@hnu.edu.cn.
⁴ College of Environmental Science and Engineering, Hunan University and Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China. Electronic address: dongbowang@hnu.edu.cn.
⁵ Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha 410011, PR China. Electronic address: xiaorong65@csu.edu.cn.

PMID: 31735413
DOI: 10.1016/j.jcis.2019.11.025

Abstract

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 H₂O₂ concentration detection results for Ag₃PO₄ (154 μmol/L) and Ag₃PO₄@MIL-53(Fe) (52 μmol/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.

Keywords: Ag(3)PO(4); MIL-53(Fe); Tetracycline; Yolk-shell structure; Z-scheme photocatalyst.

MeSH terms

Anti-Bacterial Agents / chemistry
Anti-Bacterial Agents / isolation & purification*
Hydrogen Peroxide / analysis*
Lysergic Acid Diethylamide / analogs & derivatives*
Lysergic Acid Diethylamide / chemistry
Nanocomposites / chemistry*
Phosphates / chemistry*
Photolysis
Silver Compounds / chemistry*
Tetracycline / chemistry
Tetracycline / isolation & purification*

Substances

Anti-Bacterial Agents
Phosphates
Silver Compounds
N(1)-methyl-2-lysergic acid diethylamide
Lysergic Acid Diethylamide
Hydrogen Peroxide
Tetracycline