Preparation of hollow SnO2/ZnO cubes for the high-performance detection of VOCs

被引:14
|
作者
Dong, Zong-Mu [1 ]
Xia, Qian [1 ]
Ren, Haibo [2 ,3 ]
Shang, Xin [3 ]
Lu, Xiaojing [3 ]
Joo, Sang Woo [4 ]
Huang, Jiarui [3 ]
机构
[1] Anhui Normal Univ, Sch Ecol & Environm, Wuhu 241002, Anhui, Peoples R China
[2] Anhui Polytech Univ, Modern Technol Ctr, Sch Mat Sci & Engn, Wuhu 241000, Anhui, Peoples R China
[3] Anhui Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Mol Solids, Anhui Lab Mol Based Mat,Minist Educ, Wuhu 241002, Anhui, Peoples R China
[4] Yeungnam Univ, Sch Mech Engn, Gyongsan 712749, Gyeoungbuk, South Korea
基金
新加坡国家研究基金会;
关键词
SnO2; ZnO; Hollow cubes; n-n heterojunction; VOCs; Gas sensor; SNO2-ZNO COMPOSITE NANOFIBERS; ETHANOL GAS SENSOR; SENSING PROPERTIES; ZNO; NANOSTRUCTURES; MICROCUBES; MECHANISM; HYDROGEN;
D O I
10.1016/j.ceramint.2022.09.352
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Detecting volatile organic compounds is essential to improving the environment and human health. This study prepared a novel composite of hollow SnO2/ZnO cubes using a self-template hydrothermal method followed by a calcination process. The morphology and structure of the composites were characterized using a series of analysis techniques, and the formation mechanism of a hollow cube-like structure was explored. Compared to the hollow SnO2 cube sensor, the hollow SnO2/ZnO cube sensor exhibited a strong response (148-100 ppm formaldehyde), fast response/recovery time (15 s/25 s), good linearity (R2 = 0.995), good repeatability, and excellent stability. The superior gas sensing property of the hollow SnO2/ZnO cubes was attributed to the combined advantages of hollow structures and heterojunctions.
引用
收藏
页码:4650 / 4658
页数:9
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