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
收藏
页数：10
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