催化作用
纳米复合材料
污染物
罗丹明B
矿化(土壤科学)
复合数
兴奋剂
化学
水溶液
可重用性
钴
光催化
化学工程
降级(电信)
材料科学
环境化学
无机化学
纳米技术
复合材料
有机化学
计算机科学
电信
光电子学
工程类
软件
氮气
程序设计语言
作者
M. Hjiri,Roger Bujaldón,Judit Lloreda,E. Gómez,Albert Serrà
出处
期刊:Chemosphere
[Elsevier]
日期:2024-03-09
卷期号:354: 141656-141656
标识
DOI:10.1016/j.chemosphere.2024.141656
摘要
The rampant upsurge of organic pollutants in aqueous media has become one of the major concerns nowadays. Finding non-specific catalysts that can target a wide range of organic pollutants is a key challenge. Eco-friendly oxidative radicals, such as promoted by peroxymonosulfate (PMS), are necessary for efficient water decontamination. We propose a multicomponent composite catalyst for activating PMS using a dual strategy of sonophotocatalysis. The composite integrates cobalt ferrite and Cu- or Ce-doped SnO2, with the at. % of doping metal and the mixture ratio carefully balanced. The top-performing architectures were able to decompose rhodamine B (20 ppm), a representative pollutant, in under 3 min and achieve over 70% mineralization in just 5 min. The synthesized nanocomposites demonstrated exceptional sonophotocatalytic performance, even when treating complex and diverse multipollutant solutions (80 ppm), achieving over 75% mineralization after 150 min. Considering their high stability and reusability, the proposed CoFe2O4/Cu- and Ce-doped SnO2 materials are among the state-of-the-art heterogeneous catalysts for mineralizing organic pollutants through PMS activation.
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