An arch-shape wood evaporator decorated by metal-organic framework for solar interface evaporation  

作　　者：Tiantian Wu Liming Zhao Yaning Xu Ziwei Cui Lixing Kang Yahui Cai Zupeng Chen Dan Tian 

机构地区：[1]Co-Innovation Center of Efficient Processing and Utilization of Forest Resources,College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,China [2]Key Laboratory of Multifunctional Nanomaterials and Smart Systems,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China [3]College of Materials Science and Engineering,Nanjing Forestry University,Nanjing 210037,China

出　　处：《Nano Research》2024年第7期6661-6672,共12页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(No.22175094);Independent Innovation of Agricultural Science and Technology in Jiangsu Province(No.CX(21)3163).

摘　　要：To achieve sustainable desalination and water purification,solar interface evaporation technology is an effective means due to its high energy efficiency.Reasonable photothermal conversion materials and surface design are crucial for the interfacial solar evaporation process.How to design water transport routes and thermal insulating layers simultaneously is one of the major challenges to solar interface evaporation technology today.Herein,this work reports an arch-shaped wood evaporator(pine@carbon black(CB)-metal-organic framework-801(MOF-801)-36%)for efficient,fast and continuous interfacial solar evaporation,which is composed of an arch-shaped wood substrate,MOF-801,and CB as a light absorption layer.The archshaped structure has a double-sided evaporation effect,which has a synergistic effect on augmenting solar evaporation efficiency.In addition,the in-situ growth of MOF-801 in pretreated wood microchannels renders the wood evaporator a significant function of reducing the equivalent enthalpy of evaporation due to the reduction of the hydrogen bonding density of water molecules as they pass through the wood channels.The best evaporation rate of the arch-shaped wood evaporator can reach 2.535 kg·m^(−2)·h^(−1),and the efficiency reaches 93.7%under the irradiation of 1 sun illumination.Notably,it could be used for desalination and wastewater treatment to collect fresh water that meets drinking requirements set by the World Health Organization(WHO).This integrated evaporator provides an efficient way for commercial portable photothermal conversion and new ideas for advanced solar-driven water treatment technology.

关 键 词：arch-shaped solar evaporation WOOD metal-organic frameworks(MOFs) double-sided evaporation 

分 类 号：TK519[动力工程及工程热物理—热能工程]