Pt-sensitized MoO3/mpg-CN mesoporous nanohybrid: A highly sensitive VOC sensor

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.

Automated summary

The study developed an acetone gas sensor with excellent sensing attributes for toxic volatile organic compounds commonly found in indoor climatic conditions, using a nanocasting technique.