Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Self-Assembled Supercrystals Enhance the Photothermal Conversion for Solar Evaporation and Water Purification
Small ( IF 13.0 ) Pub Date : 2022-06-26 , DOI: 10.1002/smll.202202867 Qinghui Zhang 1 , Xiaomeng Yin 2, 3 , Changbo Zhang 4 , Yiming Li 1 , Kunjiao Xiang 1 , Wenlei Luo 5 , Xuezhi Qiao 2, 3, 5
Small ( IF 13.0 ) Pub Date : 2022-06-26 , DOI: 10.1002/smll.202202867 Qinghui Zhang 1 , Xiaomeng Yin 2, 3 , Changbo Zhang 4 , Yiming Li 1 , Kunjiao Xiang 1 , Wenlei Luo 5 , Xuezhi Qiao 2, 3, 5
Affiliation
|
Photothermal materials can convert renewable solar energy into thermal energy and have great potential for solar water evaporation. Copper sulfide (Cu2−xS) is an easily available and inexpensive plasmonic material with a high photothermal conversion efficiency and can be applied to solar evaporation and water purification. Monodispersed Cu7S4 nanoparticles (NPs) and supercrystalline self-assembled superparticles are obtained via wet chemical synthesis and micelle self-assembly. The photothermal properties of the superstructures are investigated using the finite difference time domain method and laser radiation photothermography. The results show that the electromagnetic field intensity and photothermal efficiency of the self-assembly are significantly higher than those of isolated NPs, which is due to the plasmonic coupling of the NPs. The evaporation efficiency of the superstructure is significantly higher than that of isolated NPs, the metal salt ion and total organic carbon concentrations in the waterbody significantly decrease after evaporation, and the water polluted by high salt and organic dye concentrations is purified. The water quality significantly improves after the lake water from Fuxian Lake in the Yunnan–Guizhou Plateau of China is used for solar evaporation. The color changes from pale yellow to colorless and the ion and total organic carbon contents significantly decrease.
中文翻译：
自组装超晶增强太阳能蒸发和水净化的光热转换
光热材料可以将可再生太阳能转化为热能，具有很大的太阳能水分蒸发潜力。硫化铜（Cu 2− x S）是一种易于获得且价格低廉的等离子体材料，具有高光热转换效率，可应用于太阳能蒸发和水净化。单分散 Cu 7 S 4纳米粒子（NPs）和超晶自组装超粒子是通过湿化学合成和胶束自组装获得的。使用有限差分时域方法和激光辐射光热成像研究了超结构的光热特性。结果表明，自组装的电磁场强度和光热效率显着高于孤立的纳米粒子，这是由于纳米粒子的等离子体耦合。上部结构的蒸发效率显着高于孤立的纳米粒子，蒸发后水体中金属盐离子和总有机碳浓度显着降低，高盐和有机染料浓度污染的水体得到净化。云贵高原抚仙湖湖水用于太阳能蒸发后水质明显改善。颜色由淡黄色变为无色，离子和总有机碳含量显着降低。
更新日期：2022-06-26
中文翻译：
自组装超晶增强太阳能蒸发和水净化的光热转换
光热材料可以将可再生太阳能转化为热能，具有很大的太阳能水分蒸发潜力。硫化铜（Cu 2− x S）是一种易于获得且价格低廉的等离子体材料，具有高光热转换效率，可应用于太阳能蒸发和水净化。单分散 Cu 7 S 4纳米粒子（NPs）和超晶自组装超粒子是通过湿化学合成和胶束自组装获得的。使用有限差分时域方法和激光辐射光热成像研究了超结构的光热特性。结果表明，自组装的电磁场强度和光热效率显着高于孤立的纳米粒子，这是由于纳米粒子的等离子体耦合。上部结构的蒸发效率显着高于孤立的纳米粒子，蒸发后水体中金属盐离子和总有机碳浓度显着降低，高盐和有机染料浓度污染的水体得到净化。云贵高原抚仙湖湖水用于太阳能蒸发后水质明显改善。颜色由淡黄色变为无色，离子和总有机碳含量显着降低。
京公网安备 11010802027423号