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首页> 外文期刊>RSC Advances >Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors
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Environmentally friendly Au@CNC hybrid systems as prospective humidity sensors

机译：环保AU @ CNC混合系统作为前瞻性湿度传感器

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Both cellulose nanocrystals and gold nanoparticles show immense potential for biological and chemical applications. Gold nanoparticles, which tend to aggregate, are hybridized with cellulose nanocrystals to form stable inorganic–organic hybrids in which nanocellulose acts as a green supporting material for the catalytically active gold nanoparticles. A green synthesis approach was taken, and hydrothermal treatment was used to reduce electrostatic repulsion between the gold nanoparticles and the cellulose nanocrystals to promote heteroaggregation instead of homoaggregation. AFM analysis showed hybrid films to be hygroscopic, suggesting that they would respond to changes in humidity. Laser diffraction and fluorescence quenching were used to determine how hybrid films respond to changes in humidity. Hybrid films were found to respond to changes in humidity quickly, reversibly, and autonomously, making them ideal for use as or in a humidity sensor. Gold nanoparticles were shown to enhance the hybrid response to ambient moisture, causing them to show a linear dependence on changes in humidity, making the hybrid controllable, highly sensitive, and a viable prospective material for humidity sensing applications.
机译：纤维素纳米晶体和金纳米粒子都显示出生物和化学应用的巨大潜力。倾向于聚集的金纳米颗粒与纤维素纳米晶体杂交，形成稳定的无机有机杂种，其中纳米纤维素充当催化活性金纳米颗粒的绿色载体材料。采用绿色合成方法，使用水热处理来降低金纳米颗粒和纤维素纳米晶体之间的静电排斥，以促进杂碳中的代替均聚格。 AFM分析显示杂种薄膜是吸湿的，表明它们会响应湿度的变化。激光衍射和荧光猝灭用于确定杂种膜如何响应湿度的变化。发现混合薄膜响应湿度的变化，可快速，可逆，自主地，使其适用于湿度传感器或湿度传感器。显示金纳米颗粒以增强对环境水分的杂化响应，导致它们显示对湿度变化的线性依赖性，使混合可控，高敏感和可行的湿度传感应用的可行性前景材料。

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