Addressing the issue of performance degradation caused by the agglomerate of nano-SnO2 in ammonia sensors,this study utilized waste bamboo chopsticks as raw material to synthesize a porous bamboo charcoal carrier via hydrothermal treatment followed by high-temperature sintering.Leveraging its vascular bundle structure,the loaded SnO2 nanoparticles could suppress agglomeration,resulting in the fabrication of a flexible bamboo charcoal/SnO2 ammonia sensor.The experimental results demonstrated that the 0.05mol/L bamboo charcoal/SnO2 sensor exhibited a response of 13.82 toward 5×10-6 ammonia at room temperature,with response/recovery times of 37s/23s and a detection limit as low as 0.41×10-6 (S/N≥3).Even under 90% relative humidity,the sensor maintained a response of 5.55 toward 5×10-6 ammonia,demonstrating robust humidity resistance.
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基金资助
甘肃省市场监督管理局科技计划资助项目“汽车罐车防波板风险评价及检验方法研究”(SSCJG-J202302)
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