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.

引用

页数：7

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