文献类型：期刊文献

中文题名：铈钇复合物光催化降解洛克沙胂的研究

英文题名：Photocatalytic Degradation of Roxarsone by Cerium-yttrium Complexes

作者：徐洋洋[1];陈祺炜[1];周亮[2]

机构：[1]上海城投污水处理有限公司白龙港污水处理厂,上海200120;[2]华东理工大学资源与环境工程学院,上海200237

年份：2025

卷号：48

期号：6

起止页码：32

中文期刊名：环境科学与技术

外文期刊名：Environmental Science & Technology

收录：;北大核心:【北大核心2023】；

基金：城市水资源与水环境国家重点实验室开放课题(QA202319)。

语种：中文

中文关键词：洛克沙胂;氧化钇;光催化;无机砷

外文关键词：roxarsone;yttrium oxide;photocatalysis;inorganic arsenic

摘要：为解决有机砷化合物的深度去除问题,文章采用水热及煅烧法制备多孔球CeO_(2)/Y_(2)O_(3)复合材料,研究其对洛克沙胂(ROX)的降解性能,并系统地研究了催化剂形貌、催化剂用量、ROX浓度、pH值、共存阴离子和腐殖酸等对降解过程及无机砷吸附的影响。结果表明,该体系在模拟太阳光驱动下可以在70 min内去除100%的ROX,同时表现出强大的无机砷去除能力。猝灭反应和电子顺磁共振实验表明1O_(2)和h^(+)在反应中起主要作用。该催化剂稳定性较好,4次循环下仍能达到100%的ROX降解率,具有较好的实际应用前景。
In order to solve the problem of deep removal of organic arsenic compounds,porous spherical CeO_(2)/Y_(2)O_(3) compos-ite was prepared by hydrothermal and calcination methods to study the degradation performance of roxarsone(ROX),and the effects of catalyst morphology,catalyst dosage,ROX concentration,pH,co-existing anions,and humic acid on the degrada-tion process and the adsorption of inorganic arsenic were systematically investigated.The results showed that the system could remove 100% of ROX within 70 min driven by simulated sunlight,and at the same time exhibited strong inorganic arse-nic removal ability.The burst reaction and electron paramagnetic resonance experiments showed that 1O_(2) and h+played a ma-jor role in the reaction.The catalyst had good stability and could still achieve 100% ROX degradation efficiency under four cy-cles,which had a good prospect for practical application.