Abstract

There is an urgent need to develop ultra-efficient sensors to detect the toxic volatile organic compounds (VOCs) in the indoor climatic conditions to maintain a healthy environment. Herein, we have utilized a facile nanocasting technique to prepare an acetone gas sensor based on ordered mesoporous Pt–MoO3 loaded graphitic carbon nitride (mpg-CN). The mesoporous silica (KIT-6) templated Pt–MoO3/mpg-CN hybridized nanosensor illustrated a temperature-dependent sensing response for acute concentrations of important VOCs (acetone, ethanol, toluene and n-butanol) which are ordinarily observed in the indoor climate. The as-prepared hybridized nanosensor demonstrates excellent sensing attributes including good linearity, fast response-recovery times, good selectivity among other VOCs, long-time stability and reusability. The anticipated hybridized nanomaterials provide highly efficient results on exposure to VOCs at a very low temperature too.

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