海水
材料科学
海水淡化
微波食品加热
复合材料
相(物质)
蒸发
纳米团簇
纳米颗粒
化学工程
纳米技术
气象学
化学
工程类
地质学
物理
有机化学
海洋学
量子力学
生物化学
膜
作者
Shuning Xiao,Xiuwen Zhao,Suya Liu,Yuhua Xue,Guisheng Li,Jing Yang
标识
DOI:10.1002/adsu.202100500
摘要
Abstract The solid‐phase microwave thermal shock (SMTS) strategy is a novel method to fabricate micro‐nano composites via interface engineering. By exploiting the transient hot spot effect and arc discharge of strong microwave absorbing materials, rGO‐CuO x composites from GO‐Cu(OH) 2 precursors within several 10‐s cycles are synthesized. In the composites, Cu 2 O nanoparticles show a narrow size distribution of 10–50 nm with metallic Cu nanoclusters uniformly distributed on the surface. The optimized sample exhibits excellent photothermal performance by coupling solar‐to‐thermal effects from phonons, free electrons, and electron acceptors. The seawater evaporation rate is 1.28 kg m ‐2 h ‐1 with 85.7% solar‐to‐vapor conversion efficiency under 1 sun radiation. Meanwhile, the composite evaporators are characterized by excellent anti‐salt and anti‐bacterial properties during the evaporation. The removal efficiency of Na + , Mg 2+ , K + , and Ca 2+ is above 99.5%. These findings provide a sound basis for large‐scale desalination and purification of seawater.
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