Modified Hollow Glass Microspheres/Reduced Graphene Oxide Composite Aerogels with Low Thermal Conductivity for Highly Efficient Solar Steam Generation

doi:10.1021/acsami.1c11291

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	Modified Hollow Glass Microspheres/Reduced Graphene Oxide Composite Aerogels with Low Thermal Conductivity for Highly Efficient Solar Steam Generation
	Wang, Shuo 1,2; Niu, Ye 1; Wang, Chengjun1 ; Wang, Fei1 ; Zhu, Zhaoqi1 ; Sun, Hanxue1 ; Liang, Weidong1 ; Li, An1
	2021-09-15
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	13 期号:36 页码:42803-42812
摘要	Solar steam generation (SSG) as a pollution-free and sustainable way for desalination or wastewater treatment has attracted great attention in recent years. Herein, we report the fabrication of novel aerogels GAHAS and GAHAF composed of 3-aminopropyltriethoxysilane (KH550)-modified hollow glass micro-spheres (HGM) and reduced graphene oxide (RGO) by a sol-gel method for highly efficient SSG. The RGO can well wrap on modified HGM and form an interpenetrated porous structure with an excellent mechanical property. In addition, benefiting from the hollow structure of HGM, GAHAS obtained by supercritical CO2 drying well maintains the original structure of the hydrogel and shows low thermal conductivity (0.0823 W m(-1) K-1) in the wet state and self-floating ability. Combined with its superhydrophilic wettability and high light absorption (ca. 93%), the as-prepared GAHAS shows an outstanding photothermal conversion efficiency of 89.13% under 1 sun (1 kW m(-2)) illumination and excellent stability. Moreover, from the simulated seawater outdoor solar desalination experiment, it was found that the concentrations of the four primary ions K+, Ca2+, Na+, and Mg2+ in purified water are 1.65, 0.09, 1.42, and 0.32 mg L-1, respectively, and fully meet drinking water standards. Thus, our GAHAS aerogel shows great potential for practical application in SSG. This work enriches the photothermal materials and may provide a new idea for design and creation of HGM-based photothermal materials with low thermal conductivity, tunable porosity, high mechanical strength, self-floating ability, and high solar energy conversion efficiency for SSG.
关键词	solar steam generation aerogels hollow glass microspheres reduced graphene oxide desalination
DOI	10.1021/acsami.1c11291
收录类别	EI ; SCOPUS ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000697282300043
出版者	AMER CHEMICAL SOC
EI入藏号	20213710886261
EI主题词	Thermal conductivity
EI分类号	444 Water Resources - 445.1 Water Treatment Techniques - 452.4 Industrial Wastes Treatment and Disposal - 525.5 Energy Conversion Issues - 614.2 Steam Power Plant Equipment and Operation - 641.1 Thermodynamics - 657.1 Solar Energy and Phenomena - 741.1 Light/Optics - 801.3 Colloid Chemistry - 804 Chemical Products Generally - 812.3 Glass - 931.2 Physical Properties of Gases, Liquids and Solids
来源库	WOS
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148853
专题	发展规划处石油化工学院设计艺术学院
通讯作者	Li, An
作者单位	1.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China; 2.Ankang Univ, Dept Chem & Chem Engn, Ankang 725000, Shaanxi, Peoples R China
第一作者单位	石油化工学院
通讯作者单位	石油化工学院
第一作者的第一单位	石油化工学院
推荐引用方式 GB/T 7714	Wang, Shuo,Niu, Ye,Wang, Chengjun,et al. Modified Hollow Glass Microspheres/Reduced Graphene Oxide Composite Aerogels with Low Thermal Conductivity for Highly Efficient Solar Steam Generation[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(36):42803-42812.
APA	Wang, Shuo.,Niu, Ye.,Wang, Chengjun.,Wang, Fei.,Zhu, Zhaoqi.,...&Li, An.(2021).Modified Hollow Glass Microspheres/Reduced Graphene Oxide Composite Aerogels with Low Thermal Conductivity for Highly Efficient Solar Steam Generation.ACS APPLIED MATERIALS & INTERFACES,13(36),42803-42812.
MLA	Wang, Shuo,et al."Modified Hollow Glass Microspheres/Reduced Graphene Oxide Composite Aerogels with Low Thermal Conductivity for Highly Efficient Solar Steam Generation".ACS APPLIED MATERIALS & INTERFACES 13.36(2021):42803-42812.

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