Room temperature sensing of alcohol vapours using novel radially aligned nanorutile titania

被引：1

作者：

Fadojutimi, Paul ^{[1
]}

Masemola, Clinton ^{[1
]}

Nkabinde, Siyabonga Sipho ^{[3
]}

Maubane-Nkadimeng, Manoko ^{[2
]}

Linganiso, Ella Cebisa ^{[2
]}

Tetana, Zikhona Nobunta ^{[2
]}

Moloto, Nosipho ^{[1
]}

Moma, John ^{[1
]}

Gqoba, Siziwe ^{[1
]}

机构：

[1] Univ Witwatersrand, Mol Sci Inst, Sch Chem, ZA-2050 Johannesburg, South Africa

[2] Univ Witwatersrand, Microscopy & Microanal Unit, ZA-2050 Johannesburg, South Africa

[3] Univ Cape Town, Ctr Catalysis, Dept Chem Engn, Cape Town, South Africa

来源：

SENSORS AND ACTUATORS REPORTS | 2023年 / 5卷

关键词：

Nanorutile; Relative humidity; Room temperature and sensitivity; TIO2; NANOTUBES; GAS SENSORS; THIN-FILM; FABRICATION; ACETONE;

D O I：

10.1016/j.snr.2023.100154

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

1D nanostructures of TiO2 have been extensively researched in chemical sensing. The need for deployment of 3D nanostructures such as flower-like and urchin-like morphology for chemical sensing is very essential. This morphology provides distinctive attributes because of the properties afforded by the micrometre and nanometre building blocks within the crystal of the nanomaterial. 3D nanostructure nanorutile titania was fabricated using a facile hydrothermal method. The gas sensing performance showed that the hierarchical morphology, high sur-face area, high porosity and humidity played a vital role in the sensing of ethanol vapour at room temperature. The radially aligned nanorutile (RANR) TiO2 sensor showed high sensitivity with responses of 86.75% and 38.27% towards ethanol and methanol vapours, respectively. The sensor displayed good sensitivity, reproduc-ibility, rapid response, and recovery times towards alcohol vapours.

引用

页数：10

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