Acetone Sensors Based on La3+ Doped ZnO Nano-rods Prepared by Solvothermal Method

J Mater Sci Technol ›› 2012, Vol. 28 ›› Issue (3): 200-204.

• Nanomaterials and Nanotechnology • Previous Articles Next Articles

Acetone Sensors Based on La³⁺ Doped ZnO Nano-rods Prepared by Solvothermal Method

Xiangfeng Chu¹⁾, Xiaohua Zhu¹⁾, Yongping Dong¹⁾, Xiutao Ge²⁾, Shouquan Zhang²⁾, Wenqi Sun¹⁾

1) School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
2) Department of Chemistry and Life Science, Chuzhou University, Chuzhou 239000, China

Received:2011-06-14 Revised:2011-09-14 Online:2012-03-31 Published:2012-03-31
Contact: Xiangfeng Chu
Supported by:
the project (No. KJ2009A098) sponsored by Education Department of Anhui Province and the National Natural Science Foundation of China (No. 50975002)

Abstract

Abstract: La³⁺ doped ZnO nano-rods with different doping concentration were prepared via solvothermal method. The doped ZnO nano-rods were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The effect of La³⁺ doping on the gas-sensing properties was investigated. The results revealed that the sensor based on 6 mol% La³⁺ doped ZnO nano-rods exhibited high response to dilute acetone, and the responses to 0.01×10^-6 acetone reached 2.4 when operating at 425 °C. The response time and the recovery time for 0.01×10^-6 acetone were only 16 and 3 s, respectively.

Key words: ZnO, Nano-rods, Gas sensor, Acetone

Xiangfeng Chu, Xiaohua Zhu, Yongping Dong, Xiutao Ge, Shouquan Zhang, Wenqi Sun. Acetone Sensors Based on La³⁺ Doped ZnO Nano-rods Prepared by Solvothermal Method[J]. J Mater Sci Technol, 2012, 28(3): 200-204.

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Acetone Sensors Based on La³⁺ Doped ZnO Nano-rods Prepared by Solvothermal Method

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