Nanostructure ZnFe2O4 with Bacillus subtilis for Detection of LPG at Low Temperature

被引：23

作者：

Goutham, Solleti ^{[1
]}

Kumar, Devarai Santhosh ^{[2
]}

Sadasivuni, Kishor Kumar ^{[3
]}

Cabibihan, John-John ^{[3
]}

Rao, Kalagadda Venkateswara ^{[1
]}

机构：

[1] Jawaharlal Nehru Technol Univ Hyderabad, Ctr Nano Sci & Technol, Kukatpally 500085, Telangana State, India

[2] Indian Inst Technol, Dept Chem Engn, Sangareddy 502285, Telangana State, India

[3] Qatar Univ, Dept Mech & Ind Engn, POB 2713, Doha, Qatar

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2017年 / 46卷 / 04期

关键词：

Hybrid-nanostructures; ZnFe2O4; Bacillus subtilis; chemical sensor; liquefied petroleum gas; REACTION-CENTER PROTEIN; GAS SENSOR; ELECTRON-TRANSFER; FILMS; NANOPARTICLES; COMBUSTION;

D O I：

10.1007/s11664-016-5273-z

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The present study deals with the development of a chemical sensor for the detection of liquefied petroleum gas (LPG) at a low operating temperature using Zinc ferrite (ZnFe2O4)/Bacillus subtilis (B. subtilis) hybrid nanostructures. The nanostructure ZnFe2O4 and B. subtilis powder, taken in equal proportion was made into films using the spin coating technique. X-ray diffraction, thermal analysis, scanning electron microscopy, and transmission electron microscopy were used to study morphology, structure and crystallite size. The sensing properties of the hybrid structure were studied and excellent response was observed in the temperature range of 50-55A degrees C for 400 ppm LPG, when compared to the individual components of the hybrid. The signal output of the proposed sensor were extremely stable for more than 30 days. This method proposes the usage of the biomolecule/metal oxide composites in electronics and helps to reduce the metal oxide usage.

引用

页码：2334 / 2339

页数：6

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