钴-锆化合物活化PMS降解罗丹明B体系的构建与优化
Construction and Optimization of Co(OH)2-ZrO2 Activated PMS System for the Degradation of RhB
张博 1梁佩茵 2何金鑫 2张扬 2陈冬冬 1李湘1
作者信息
- 1. 肇庆学院,广东 肇庆 526061;广东省环境健康与资源利用重点实验室,广东 肇庆 526061
- 2. 肇庆学院,广东 肇庆 526061
- 折叠
摘要
本文采用水热-沉淀法制备Co(OH)2-ZrO2 催化剂,采用XRD对催化剂的物相进行了分析,并利用SEM-Mapping对催化剂的形貌与组成进行了表征.以罗丹明B(RhB)为模型污染物,在可见光辐照下,对催化剂中钴含量进行了优化,并构建了10Co-Zr催化剂活化PMS体系用于降解RhB,探究了反应条件对RhB降解率的影响,得到了优选的反应条件:初始pH=7.0、PMS=0.5 mM、10Co-Zr=0.1 g/L,RhB的降解率为98％.此外,还开展了循环实验,循环5 次后RhB的降解率仍保持在95％以上,催化剂稳定性优良,具有一定应用前景.
Abstract
In this article,Co(OH)2-ZrO2 catalysts were synthesized by a hydrothermal-precipitation method.The crystal structure of the catalyst was analyzed by XRD,and the morphology and composition were characterized by SEM-Mapping.With Rhodamine B(RhB)as the model contaminant,the cobalt content of the catalyst was optimized under visible light irradiation,and a 10Co-Zr catalyst activated PMS system was then constructed for RhB degradation.The influence of reaction conditions on the degradation of RhB was explored,and the optimal reaction conditions were obtained:initial pH=7.0,PMS=0.5 mM,10Co-Zr=0.1 g/L,resulting in a degradation rate of 98％for RhB.Furthermore,the degradation rate of RhB remained above 95％even after 5 cycles,indicating the acceptable stability and potential application of the catalyst.
关键词
钴-锆化合物/活化/PMS/降解/罗丹明BKey words
Co(OH)2-ZrO2/activated/PMS/degradation/RhB引用本文复制引用
出版年
2024
NETL
NSTL
万方数据