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Nano-enabled solar driven-interfacial evaporation:Advanced design and opportunities

Nano Research 2023年第5期16卷 6015-6038页

作者： Xin Zhao Xiangtong Meng Hongqi Zou Yanjun Zhang Yangjun Ma Yadong Du Yuan Shao Jun Qi Jieshan Qiu State Key Laboratory of Organic–Inorganic Composites State Key Laboratory of Chemical Resource EngineeringCollege of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Guangxi key Laboratory of Green Chemical Materials and Safety Technology Beibu Gulf UniversityQinzhou 535011China

solar-driven interfacial evaporation(SDIE)is emerging as a promising pathway to solving the worldwide water shortage and water pollution.Nanomaterials(e.g.,plasmonic metals,inorganic/organic semiconductors,and carbon nanomaterials)and related nanochemistry have attracted increasing attention for the solar-to-vapor process in terms of broadband absorption,electronic structure adjustment,and surface/interface chemistry manipulation.Furthermore,the assembly of nanomaterials can contribute to the mass transfer,heat management,and enthalpy regulation of water during solar evaporation.To date,numerous nano-enabled materials and structures have been developed to improve the solar absorption,heat management(i.e.,heat confinement and heat transfer),and water management(i.e.,activation,evaporation,and replenishment).In this review,we focus on a systematical summary about the composition and structure engineering of nanomaterials in SDIE,including size and morphology effects,nanostructure optimizations,and structure-property relationship decoupling.This review also surveys recent advances in nanochemistry(e.g.,preparation chemistry and structural chemistry)deployed to conceptual design of nanomaterials.Finally,the key challenges and future perspectives of nanomaterials for solar evaporation are overviewed.This review aims at providing guidance for the design and construction of nanomaterials for high-efficiency SDIE on the basis of the aspects of materials science and chemical engineering.

关键词： nanomaterials nanochemistry solar-driven interfacial evaporation solar-to-heat conversion light/heat management water activation

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The coral-inspired steam evaporator for efficient solar desalination via porous and thermal insulation bionic design

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SmartMat 2023年第6期4卷 72-83页

作者： He Zhang Xiaoke Li Size Zheng Jin Wen Jiaying Zhou Rui Yang Wenmei Luo Liu Yang Xiaohu Wu College of Materials and Chemistry&Chemical Engineering Chengdu University of TechnologyChengduChina Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjingChina Shandong Institute of Advanced Technology JinanChina

The solar-driven interfacial evaporation(SIE)technology shows great prospects in seawater desalination and sewage treatment,but it is unable to obtain highly efficient and high-quality clean nontoxic water at low cost.Here,a novel biodegradable hydrogel-based solar evaporator(BBH-L)with a bionic coral structure taking Chinese ink as the solar absorber was developed.This evaporator consists of chitosan/polyvinyl alcohol hydrogel and a loofah substrate.The average evaporation rate and efficiency of BBH-L reach 4.37 kg/(m^(2)·h)and 98.2%,respectively,under one sun illumination(1 kW/m^(2)),which are attributed to its excellent thermal localization and water transporting abilities.Meanwhile,high salt resistance enables BBH-L to achieve efficient desalination and purification of other unconventional water.Heavy metal ions in seawater can be effectively removed by chelation and forming hydrogen bonds in hydrogels.This study is anticipated to provide new possibilities to enhance evaporation performance and reduce the costs of water treatment systems.

关键词： desalination hydrogel-based solar evaporator solar-driven interfacial evaporation unconventional water

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