Solar Vapor Generation Enabled by Nanoparticles
Solar Vapor Generation Enabled by Nanoparticles
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DOI：
10.1021/nn304948h
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发表时间：
2013-01-01
期刊：
影响因子：
17.1
通讯作者：
Halas, Naomi J.
中科院分区：
文献类型：
--
作者：
Neumann, Oara;Urban, Alexander S.;Halas, Naomi J.
分散在液体中的广泛吸收的金属或碳纳米颗粒的太阳照射产生蒸汽，而不需要加热流体体积。当颗粒在环境温度下分散在水中时，能量主要用于将水蒸发成蒸汽，其中小得多的部分导致流体加热。阳光照射的颗粒也可以驱动水-乙醇蒸馏，产生比简单的热蒸馏更富含乙醇含量的馏分。这些现象也可以使重要的紧凑型太阳能应用，如废物和手术器械的消毒在资源贫乏的地区。
Solar illumination of broadly absorbing metal or carbon nanoparticles dispersed in a liquid produces vapor without the requirement of heating the fluid volume. When particles are dispersed in water at ambient temperature, energy Is directed primarily to vaporization of water into steam, with a much smaller fraction resulting in heating of the fluid. Sunlight-illuminated particles can also drive H2O-ethanol distillation, yielding fractions significantly richer in ethanol content than simple thermal distillation. These phenomena can also enable important compact solar applications such as sterilization of waste and surgical instruments In resource-poor locations.