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-ZrO_(2) Activated PMS System for the Degradation of RhB

作　　者：张博 梁佩茵 何金鑫 张扬 陈冬冬 李湘[1,2] Zhang Bo;Liang Peiyin;He Jinxin;Zhang Yang;Chen Dongdong;Li Xiang(Zhaoqing University,Zhaoqing 526061,China;Guangdong Provincial Key Laboratory of Environmental Health and Land Resource,Zhaoqing 526061,China)

机构地区：[1]肇庆学院,广东肇庆526061 [2]广东省环境健康与资源利用重点实验室,广东肇庆526061

出　　处：《广东化工》2024年第22期5-7,39,共4页Guangdong Chemical Industry

基　　金：肇庆市科技创新指导类项目(2023040304001)。

摘　　要：本文采用水热-沉淀法制备Co(OH)_(2)-ZrO_(2)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p H=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Rh B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。In this article,Co(OH)_(2)-ZrO_(2) 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B 

分 类 号：TQ[化学工程]