Sustainable self-powered degradation of antibiotics using Fe3O4@MoS2/ PVDF modified pipe with superior piezoelectric activity: Mechanism insight, toxicity assessment and energy consumption

被引：38

作者：

Wang, Jingxue ^{[1
]}

Zhou, Xiaonan ^{[1
]}

Hao, Juncheng ^{[1
]}

Wang, Zichen ^{[1
]}

Huo, Bingjie ^{[1
]}

Qi, Jianguang ^{[1
]}

Wang, Yinglong ^{[1
]}

Meng, Fanqing ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2023年 / 331卷

关键词：

Piezocatalytic pipe; Water flow energy; Piezocatalytic degradation; Wastewater treatment; Self-powered; EFFICIENT DEGRADATION; TETRACYCLINE; CATALYST; PEROXYMONOSULFATE; PHOTOCATALYSIS; NANOCOMPOSITES; NANOFIBERS; SINGLE; WATER; OXIDE;

D O I：

10.1016/j.apcatb.2023.122655

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：

Using clean energy from the environment to treat organics is a sustainable approach to alleviate the energy shortage and environmental pollution. Water flow energy in pipelines is overlooked due to the lack of efficient energy-converting material. Herein, a novel Fe3O4 @MoS2/PVDF modified pipe was prepared and used for self -powered piezocatalytic degradation of organics in the pipeline. The degradation efficiency of tetracycline, Rhodamine B, ciprofloxacin and oxytetracycline can reach 92.5 %, 90.9 %, 85.9 % and 69.2 %, respectively, at an ultralow flow rate. The energy consumption of this water treatment system was only 12.7 % of that of ul-trasonic systems. The theoretical calculation and characterization results indicated that the ultrahigh piezoca-talytic efficiency was derived from the coupling effect of Fe3O4/MoS2 and PVDF. EPR results showed that center dot O2- , center dot OH, and h+ were the main active species in degrading organics. The results of the toxicity assessment showed that ecotoxicity could be reduced or even eliminated.

引用

页数：14