An excellent triethylamine (TEA) sensor based on unique hierarchical MoS2/ZnO composites composed of porous microspheres and nanosheets

被引：119

作者：

Xu, Xiaoli ^{[1
]}

Wang, Shengyi ^{[1
]}

Liu, Wangwang ^{[1
]}

Chen, Yan ^{[2
]}

Ma, Shuyi ^{[1
]}

Yun, Pengdou ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China

[2] Northwest Univ Nationalities, Lanzhou 730030, Gansu, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2021年 / 333卷 / 333期

基金：

中国国家自然科学基金;

关键词：

MoS2/ZnO; Hydrothermal synthesis; Hierarchical microstructure; Heterojunction composites; Gas sensor;

D O I：

10.1016/j.snb.2021.129616

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A convenient two-step hydrothermal method was used to prepare unique hierarchical MoS2/ZnO composites composed of porous microspheres and nanosheets. The gas sensing properties of MoS2/ZnO composite sensor was investigated. Compared with pure MoS2, the MoS2/ZnO composite sensor shows a remarkably increased response of 23.57 to triethylamine (TEA). In addition, the much shorter recovery time for MoS2/ZnO sensor is a sharp contrast to the terribly bad desorption ability of pure MoS2. The prepared MoS2/ZnO gas sensor can achieve a recovery rate of over 90 % after 134 s without using auxiliary means. The composite material also presents strong anti-interference ability and outstanding selectivity. The excellent sensing performances of MoS2/ZnO composite sensor may be attributed to the n-n composite heterojunction and the abundant diffusion channels originated from the unique microstructure. Our research work may provide a valuable strategy for preparing high-performance TEA sensor with low-cost.

引用

页数：10

共 52 条

[11] Design of Hetero-Nanostructures on MoS2 Nanosheets To Boost NO2 Room-Temperature Sensing [J].

Han, Yutong ;

Huang, Da ;

Ma, Yujie ;

He, Guili ;

Hu, Jun ;

Zhang, Jing ;

Hu, Nantao ;

Su, Yanjie ;

Zhou, Zhihua ;

Zhang, Yafei ;

Yang, Zhi .

ACS APPLIED MATERIALS & INTERFACES, 2018, 10 (26) :22640-22649

[12] The Role of NiO Doping in Reducing the Impact of Humidity on the Performance of SnO2-Based Gas Sensors: Synthesis Strategies, and Phenomenological and Spectroscopic Studies [J].

Kim, Hae-Ryong ;

Haensch, Alexander ;

Kim, Il-Doo ;

Barsan, Nicolae ;

Weimar, Udo ;

Lee, Jong-Heun .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (23) :4456-4463

[13] Optical Absorption of Armchair MoS2 Nanoribbons: Enhanced Correlation Effects in the Reduced Dimension [J].

Kim, Jongmin ;

Yun, Won Seok ;

Lee, J. D. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2015, 119 (24) :13901-13906

[14] MoS2/ZnO nanocomposites for efficient photocatalytic degradation of industrial pollutants [J].

Krishnan, Unni ;

Kaur, Manjot ;

Kaur, Gurpreet ;

Singh, Kulwinder ;

Dogra, Ankit Rai ;

Kumar, Manjeet ;

Kumar, Akshay .

MATERIALS RESEARCH BULLETIN, 2019, 111 :212-221

[15] Hierarchical electrospun nanofibers for energy harvesting, production and environmental remediation [J].

Kumar, Palaniswamy Suresh ;

Sundaramurthy, Jayaraman ;

Sundarrajan, Subramanian ;

Babu, Veluru Jagadeesh ;

Singh, Gurdev ;

Allakhverdiev, Suleyman I. ;

Ramakrishna, Seeram .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (10) :3192-3222

[16] High performance NO2 sensor using MoS2 nanowires network [J].

Kumar, Rahul ;

Goel, Neeraj ;

Kumar, Mahesh .

APPLIED PHYSICS LETTERS, 2018, 112 (05)

[17] UV-Activated MoS2 Based Fast and Reversible NO2 Sensor at Room Temperature [J].

Kumar, Rahul ;

Goel, Neeraj ;

Kumar, Mahesh .

ACS SENSORS, 2017, 2 (11) :1744-1752

[18] Sensing Behavior of Atomically Thin-Layered MoS2 Transistors [J].

Late, Dattatray J. ;

Huang, Yi-Kai ;

Liu, Bin ;

Acharya, Jagaran ;

Shirodkar, Sharmila N. ;

Luo, Jiajun ;

Yan, Aiming ;

Charles, Daniel ;

Waghmare, Umesh V. ;

Dravid, Vinayak P. ;

Rao, C. N. R. .

ACS NANO, 2013, 7 (06) :4879-4891

[19] Fabrication of Single- and Multilayer MoS2 Film-Based Field-Effect Transistors for Sensing NO at Room Temperature [J].

Li, Hai ;

Yin, Zongyou ;

He, Qiyuan ;

Li, Hong ;

Huang, Xiao ;

Lu, Gang ;

Fam, Derrick Wen Hui ;

Tok, Alfred Iing Yoong ;

Zhang, Qing ;

Zhang, Hua .

SMALL, 2012, 8 (01) :63-67

[20] Enhanced photocatalytic activity and synthesis of ZnO nanorods/MoS2 composites [J].

Li, Hui ;

Shen, Hao ;

Duan, Libing ;

Liu, Ruidi ;

Li, Qiang ;

Zhang, Qian ;

Zhao, Xiaoru .

SUPERLATTICES AND MICROSTRUCTURES, 2018, 117 :336-341

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