Rice Husk Templated Mesoporous ZnO Nanostructures for Ethanol Sensing at Room Temperature

被引:6
作者
Chitra, M. [1 ]
Uthayarani, K. [1 ]
Rajasekaran, N. [2 ]
Neelakandeswari, N. [2 ]
Girija, E. K. [3 ]
Padiyan, D. Pathinettam [4 ]
机构
[1] Sri Ramakrishna Engn Coll, Dept Phys, Coimbatore 641022, Tamil Nadu, India
[2] Sri Ramakrishna Engn Coll, Dept Chem, Coimbatore 641022, Tamil Nadu, India
[3] Periyar Univ, Dept Phys, Salem 636011, India
[4] Manonmaniam Sundaranar Univ, Dept Phys, Abhishekapatti 627012, Tirunelveli, India
关键词
HOLLOW FIBERS; LAFEO3;
D O I
10.1088/0256-307X/32/7/078101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Mesoporous zinc oxide nanostructures are successfully synthesized via the sol-gel route by using a rice husk as the template for ethanol sensing at room temperature. The structure and morphology of the nanostructures are characterized by x-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption-desorption analyses. The mechanism for the growth of zinc oxide nanostructures over the biotemplate is proposed. SEM and TEM observations also reveal the formation of spherical zinc oxide nanoparticles over the interwoven fibrous network. Multiple sized pores having pore diameter ranging from 10-40nm is also evidenced from the pore size distribution plot. The larger surface area and porous nature of the material lead to high sensitivity (40.93% for 300 ppm of ethanol), quick response (42 s) and recovery (40 s) towards ethanol at 300 K. The porous nature of the interwoven fibre-like network affords mass transportation of ethanol vapor, which results in faster surface accessibility, and hence it acts as a potential candidate for ethanol sensing at room temperature.
引用
收藏
页数:4
相关论文
共 28 条
[1]   Application studies of activated carbon derived from rice husks produced by chemical-thermal process-A review [J].
Chen, Yue ;
Zhu, Yanchao ;
Wang, Zichen ;
Li, Ying ;
Wang, Lili ;
Ding, Lili ;
Gao, Xiaoyan ;
Ma, Yuejia ;
Guo, Yupeng .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2011, 163 (01) :39-52
[2]   Ordered hierarchical mesoporous anatase TiO2 from yeast biotemplates [J].
Cui, Jingjie ;
He, Wen ;
Liu, Hongtao ;
Liao, Shijun ;
Yue, Yuanzheng .
COLLOIDS AND SURFACES B-BIOINTERFACES, 2009, 74 (01) :274-278
[3]   Highly ordered ZnO nanostructure arrays: Preparation and light-emitting diode application [J].
Dong, Jing-Jing ;
Zhen, Chun-Yang ;
Hao, Hui-Ying ;
Xing, Jie ;
Fan, Zhen-Jun ;
Zhang, Zi-Li .
JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53 (05)
[4]   The Fabrication and Characterization of Well Aligned Petal-Like Arsenic-Doped Zinc Oxide Microrods [J].
Feng Qiu-Ju ;
Jiang Jun-Yan ;
Tao Peng-Cheng ;
Liu Shuang ;
Xu Rui-Zhuo ;
Li Meng-Ke ;
Sun Jing-Chang .
CHINESE PHYSICS LETTERS, 2011, 28 (10)
[5]   Nanostructured metal chalcogenides: synthesis, modification, and applications in energy conversion and storage devices [J].
Gao, Min-Rui ;
Xu, Yun-Fei ;
Jiang, Jun ;
Yu, Shu-Hong .
CHEMICAL SOCIETY REVIEWS, 2013, 42 (07) :2986-3017
[6]  
Hsua C.-L., 2014, SENSOR ACTUAT B-CHEM, V192, P550
[7]   Characteristics and Time-Dependent Instability of Ga-Doped ZnO Thin Film Transistor Fabricated by Radio Frequency Magnetron Sputtering [J].
Huang Hai-Qin ;
Sun Jian ;
Liu Feng-Juan ;
Zhao Jian-Wei ;
Hu Zuo-Fu ;
Li Zhen-Jun ;
Zhang Xi-Qing ;
Wang Yong-Sheng .
CHINESE PHYSICS LETTERS, 2011, 28 (12)
[8]   Synthesizing of ZnO micro/nanostructures at low temperature with new reducing agents [J].
Li Hong-Dong ;
Lu Hang ;
Sang Dan-Dan ;
Li Dong-Mei ;
Li Bo ;
Lue Xian-Yi ;
Zou Guang-Tian .
CHINESE PHYSICS LETTERS, 2008, 25 (10) :3794-3797
[9]   Electrical properties of single ZnO nanobelt in low temperature [J].
Li Ming-Jie ;
Gao Hong ;
Li Jiang-Lu ;
Wen Jing ;
Li Kai ;
Zhang Wei-Guang .
ACTA PHYSICA SINICA, 2013, 62 (18)
[10]   Hierarchically porous ZnO with high sensitivity and selectivity to H2S derived from biotemplates [J].
Liu, Zhaoting ;
Fan, Tongxiang ;
Zhang, Di ;
Gong, Xiaolu ;
Xu, Jiaqiang .
SENSORS AND ACTUATORS B-CHEMICAL, 2009, 136 (02) :499-509