Hydrothermal synthesis of hierarchical SnO_(2)nanomaterials for high-efficiency detection of pesticide residue  

作　　者：Haijie Cai Xiaopeng Qiao Meilian Chen Dongsheng Feng Abdulaziz AAlghamdi Fahad A.Alharthi Yingjie Pan Yong Zhao Yongheng Zhu Yonghui Deng 

机构地区：[1]College of Food Science and Technology,Laboratory of Quality&Safety Risk Assessment for Aquatic Products on Storage and Preservation(Shanghai),Ministry of Agriculture and Shanghai Engineering Research Center of Aquatic-Product Processing&Preservation Shanghai Ocean University,Shanghai 201306,China [2]Shanghai Agricultural Product Quality and Safety Center,Shanghai 201306,China [3]Department of Chemistry,College of Science,King Saud University,P.O.Box 2455,Riyadh 11451,Saudi Arabia [4]Department of Chemistry,Fudan University Shanghai 200433,China [5]State Key Lab of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China

出　　处：《Chinese Chemical Letters》2021年第4期1502-1506,共5页中国化学快报（英文版）

基　　金：financially funded by the National Natural Science Foundation of China(No.31701678);the Key Project of Shanghai Agriculture Prosperity through Science and Technology(No.2019-02-08-00-15-F01147);the project of Shanghai Science and Technology Committee(No.19391901600);the Key Basic Research Program of Science and Technology Commission of Shanghai Municipality(No.20JC1415300);the State Key Laborato ry of Transducer Technology of China(No.SKT1904);the Research Support Project number(No.RSP-2020/155),King Saud University,Riyadh,Saudi Arabia。

摘　　要：Acephate pesticide contamination in agricultural production has caused serious human health problems.Metal oxide semiconductor(MOS)gas sensor can be used as a portable and promising alternative tool for efficiently detection of acephate.In this study,hierarchical assembled SnO_(2)nanosphere,SnO_(2)hollow nanosphere and SnO_2 nanoflower were synthesized respectively as high efficiency sensing materials to build rapid and selective acephate pesticide residues sensors.The morphologies of different SnO_(2)3 D nanostructures were characterized by various material characterization technology.The sensitive performance test results of the 3 D SnO_(2)nanomaterials towards acephate show that hollow nanosphere SnO_(2)based sensor displayed preferable sensitivity,selectivity,and rapid response(9 s)properties toward acephate at the optimal working temperature(300℃).This SnO_(2)hollow nanosphere based gas sensor represents a useful tool for simple and highly effective monitoring of acephate pesticide residues in food and environment.According to the characterization results,particularly Brunauer-Emmett-Teller(BET)and Ultraviolet-Visible Spectroscopy(UV-vis),the obvious and fast response can be attributed to the mesoporous hollow nanosphere structure and appropriate band gap of SnO_2 hollow nanosphere.

关 键 词：SnO_(2)nanomaterials Hollow nanostructures Hydrothermal methods Acephate gas sensor High-efficiency detection 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TB383.1[自动化与计算机技术—控制科学与工程] TS207.53[一般工业技术—材料科学与工程]