Photocatalysis of Cr- and Fe-Doped CeO2 Nanoparticles to Selective Oxidation of 5-Hydroxymethylfurfural

被引：8

作者：

Nam, Jeong-Woo ^{[1
]}

Pham, Vy Ngoc ^{[2
]}

Ha, Jeong Min ^{[1
]}

Shin, Minjeong ^{[3
]}

Lee, Hangil ^{[2
]}

Youn, Young-Sang ^{[1
]}

机构：

[1] Yeungnam Univ, Dept Chem, Daehak Ro 280, Gyongsan 38541, South Korea

[2] Sookmyung Womens Univ, Dept Chem, Seoul 04310, South Korea

[3] Sungshin Womens Univ, Sch Chem & Energy, 55 Dobong Ro 76 Ga Gil, Seoul 01133, South Korea

来源：

NANOMATERIALS | 2023年 / 13卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

transition metal-doped CeO2 nanoparticles; oxygen vacancy; photocatalytic property; 5-hydroxymethylfurfural; 2,5-FURANDICARBOXYLIC ACID; HETEROGENEOUS CATALYSTS; OXYGEN VACANCIES; DEFECT STRUCTURE; CO OXIDATION; CERIA; CHEMISTRY; NANOSHEETS; INTERFACE;

D O I：

10.3390/nano13010044

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oxygen vacancies (V-o) present in CeO2 nanoparticles (NPs) can effectively boost their photocatalytic activity under ultraviolet (UV) light. To improve photocatalytic performance, Cr- and Fe-doped CeO2 NPs with increased V-o were prepared using a simple method of doping Cr and Fe ions into CeO2 NPs, which was confirmed by an in-depth analysis of the structural and electronic changes. Through photocatalytic degradation (PCD) experiments with 5-hydroxymethylfurfural (HMF), we found that the PCD rates of the two doped CeO2 NPs were faster than that of the CeO2 NPs. In addition, the conversion of HMF to 2,5-furandicarboxylic acid (FDCA) using the doped CeO2 NPs occurred only through the mechanism of the selective oxidation to 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), exhibiting better efficiency than using CeO2 NPs.

引用

页数：10

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