In-situ growth of CeO2/Ce(OH)CO3 composites with enhanced photocatalytic activity by the incomplete conversion of CeO2 to Ce(OH)CO3

被引：2
|
作者：
Wu, Xinhao [1 ]
Tang, Jianping [1 ]
Li, Yuan [1 ]
Chen, Yujun [1 ]
Huang, Guiwen [2 ]
Wang, Lei [1 ]
Zhong, Shengliang [1 ]
机构：
[1] Jiangxi Normal Univ, Coll Chem & Chem Engn, Nanchang 330022, Peoples R China
[2] Jiangxi Jingan High tech Co Ltd, Nanchang 330022, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2023年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
In-situ growth; CeO2; Ce(OH)CO3; incomplete conversion; ethylene glycol; HYDROTHERMAL SYNTHESIS; DEGRADATION PATHWAYS; TEMPLATE-FREE;
D O I：
10.1088/2053-1591/acae21
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a novel strategy was used to grow CeO2/Ce(OH)CO3 composite in situ by the incomplete conversion of CeO2 to Ce(OH)CO3 using ethylene glycol (EG) as CO3 (2-) source and solvent. Interestingly, the content of Ce(OH)CO3 in CeO2/Ce(OH)CO3 composite can be controlled by changing the solvent composition. The obtained CeO2/Ce(OH)CO3 composite all exhibited enhanced photocatalytic performance for methylene blue (MB) degradation. The CeO2/Ce(OH)CO3 composite prepared at 200 degrees C for 24 h with a H2O/EG volume ratio of 0.5 showed the best visible-light activity with a degradation efficiency of 98.84% within 120 min. This work provided a novel method to fabricate basic rare Earth carbonates and their composites for environmental purification.
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收藏
页数：7
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