结晶度
光催化
复合数
热液循环
降级(电信)
材料科学
催化作用
纳米颗粒
化学工程
超纯水
纳米技术
核化学
化学
复合材料
有机化学
电信
计算机科学
工程类
作者
Honghai Dai,Xiu Yang,Fei Tang
出处
期刊:ACS omega
[American Chemical Society]
日期:2023-11-01
卷期号:8 (45): 42647-42658
标识
DOI:10.1021/acsomega.3c05386
摘要
A three-dimensional flower-shaped Bi2WO6 has been prepared by a hydrothermal procedure without the addition of an auxiliary agent and under neutral conditions with ultrapure water serving as solvent, and the Ag2S-Bi2WO6 composite with weight ratios of 5, 10, and 15% was prepared by a hydrothermal method. The crystallinity, morphology, mode of binding, and optical properties of the Ag2S-Bi2WO6 composite were characterized, the results of which showed that the composite had excellent dispersion, crystallinity, and purity. The composite with a weight ratio of 10% had the best photocatalytic performance, and the degradation rate of tetracycline reached 95.51% within 120 min, an increase of 27.35% over Bi2WO6. In experiments, some focus was given to the effect of the initial solution pH and the concentrations of humic acid and inorganic anions on the degradation efficiency. Based on free radical capture experiments and the semiconductor theory, the main active substances and mechanisms in the optical catalytic reaction process were studied, and speculation was given concerning the degradation pathway for the target pollutants. This study has conceived novel methods for the development of dual semiconductor systems consisting of a Ag NP composite and in doing so has provided new approaches for the development and photocatalysis for water pollution control.
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