光催化
降级(电信)
可重用性
材料科学
双金属片
复合数
氧化物
化学工程
热液循环
催化作用
复合材料
化学
有机化学
计算机科学
冶金
工程类
程序设计语言
软件
电信
作者
Dongying Zhu,Shikai Xue,Shuangfeng Yang,Qing Zuo,Haiyan Wang,Qiujun Lu,Guihua Ruan,Chenxi Zhao,Fuyou Du
标识
DOI:10.1016/j.cej.2023.146681
摘要
To fabricate novel photocatalytic materials is critical to the removal of emerging pharmaceutical pollutants from water samples. However, the photocatalytic materials still face the challenges of degradation performance and reusability. Here, layered bimetallic oxide (LBMO) composites were constructed by using hydrothermal synthesis method of layered double hydroxides (LDH) as precursors, and the LBMO films were prepared by dispersing the LBMO composites in poly(acrylonitrile-co-maleic acid) (PANCMA) solution. The obtained LBMO/PANCMA films exhibited high removal efficiency and good reusability for tetracycline (TC) degradation. Under the optimal conditions, the removal rate of LBMO/PANCMA composite film (20 mg) for TC (20 μg/mL) was 99.34 % within 40 min of light exposure, and retain above 85 % of removal rate even after 10 consecutive uses. Moreover, the possible TC degradation pathways were deduced by analyzing the TC degradation intermediates with LC-MS method, and the toxicity evolution of the TC degradation products was appraised by using density functional theoretical (DFT) method. This study provides a simple and feasible synthesis strategy for membrane-based photocatalytical materials to remove environmental pollutions.
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