光催化
材料科学
铋
降级(电信)
盐酸四环素
等离子体子
量子点
异质结
表面等离子共振
污染物
光化学
水溶液中的金属离子
光降解
金属
纳米颗粒
化学工程
纳米技术
化学
四环素
光电子学
催化作用
有机化学
电信
生物化学
工程类
计算机科学
冶金
抗生素
作者
Rama Krishna Chava,Namgyu Son,Misook Kang
出处
期刊:Chemosphere
[Elsevier]
日期:2022-08-01
卷期号:300: 134570-134570
被引量:36
标识
DOI:10.1016/j.chemosphere.2022.134570
摘要
Earth abundant metal based plasmonic photocatalysis is one of the most proficient approaches to degrade the emergent organic pollutants in contaminated water. Here, we report that using one-dimensional CdS/zero-dimensional Bi quantum dot (QD) heterostructures (1D/0D CdS/Bi HSs) were obtained via a simple solvothermal reaction. The results specified that the Bi QDs were grown onto CdS NRs through the reduction of Bi3+ ions. The Bi modified CdS HSs were employed as a photocatalyst for pharmaceutical pollutant tetracycline degradation and the optimized sample showed the maximum photocatalytic degradation activity of 90% under visible light radiation within 60 min, which is greater than the pure CdS (52%) under identical conditions. Based on the structural characterizations and degradation efficiency, the obtained CdS/Bi is a promising photocatalyst for the treatment of wastewater which contains emerging pollutants such as organic dyes and pharmaceutical antibiotics during the industrial processes. The boosted photocatalytic degradation efficiency is credited to the doped Bi3+ species; surface plasmon resonance effect that raised from metallic Bi QDs and proficient photoinduced charge carriers separation.
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