Multi-functional 3D honeycomb ceramic plate for clean water production by heterogeneous photo-Fenton reaction and solar-driven water evaporation
Multi-functional 3D honeycomb ceramic plate for clean water production by heterogeneous photo-Fenton reaction and solar-driven water evaporation
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DOI：
10.1016/j.nanoen.2019.03.039
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发表时间：
2019-06-01
期刊：
影响因子：
17.6
通讯作者：
Wang, Peng
中科院分区：
文献类型：
--
作者：
Shi, Le;Shi, Yusuf;Wang, Peng
最近，太阳能驱动的水蒸发过程在通过太阳能蒸馏生产清洁水中的应用得到了深入研究。太阳能驱动的水蒸发过程中的相变和传质过程可以直接留下盐类、重金属、有机染料等，同时产生清洁的水蒸气。然而，如果水源受到挥发性有机化合物（VOC）污染，太阳能驱动的水蒸发可能会加速VOC的挥发并使其在冷凝水中富集。本工作首次论证了蒸馏水中VOCs的富集，并通过在堇青石蜂窝陶瓷基材表面涂覆一层CuFeMnO4制备了多功能蜂窝陶瓷板。蜂窝结构有利于光捕获和能量回收，从而提高太阳能到水的蒸发效率。 CuFeMnO4涂层既充当太阳能驱动水蒸发过程的光热材料，又充当非均相光子-芬顿反应去除VOC的催化剂。通过将光芬顿反应集成到太阳能蒸馏过程中，可以生产出清洁的蒸馏水，并有效去除受污染水源中潜在的挥发性有机化合物。
The application of solar-driven water evaporation process in clean water production via solar distillation is recently intensively investigated. The phase change and mass transfer processes during the solar-driven water evaporation process can directly leave behind the salts, heavy metals, organic dyes, etc and simultaneously produce the clean water vapor. However, if the water source is contaminated by volatile organic compounds (VOCs), solar-driven water evaporation may accelerate VOCs volatile and enrich them in the condensate. In this work, the enrichment of VOCs in distillate water was first demonstrated and a multi-functional honeycomb ceramic plate was fabricated by coating a layer of CuFeMnO4 on the surface of a cordierite honeycomb ceramic substrate. The honeycomb structure was beneficial for light trapping and energy recycling and thus to improve the solar-to-water evaporation efficiency. The CuFeMnO4 coating layer acted as both the photothermal material for solar-driven water evaporation process and the catalyst for VOCs removal via heterogeneous photon-Fenton reaction. With the integration of photo-Fenton reaction into the solar distillation process, the clean distillate water was produced with efficient removal of the potential VOCs from the contaminated water sources.