Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7123629 | Measurement | 2016 | 7 Pages |
Abstract
The heterogeneous nanocomposites of CuO doped TiO2 nanoparticles were synthesized using sol gel method by varying the concentration of CuO as 0.1, 0.5 and 1Â mol% for the sensing of ammonia and hydrogen sulphide. The substitutional doping of CuO in TiO2 matrix was confirmed by the X-ray diffraction. Average crystallite size of the doped nanocomposites was found to reduce with increase in concentration of CuO. The 0.1Â mol% CuO doped TiO2 nanocomposites showed highest sensitivity to ammonia (97%) with response time of 2Â s, while 1Â mol% was selective to H2S gas (77%) with response time of 45Â s for 50Â ppm of each gas at room temperature.
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Authors
Prapti Chaudhari, Satyendra Mishra,