Self-floating Porous PVDF-CNT Microbeads for Highly Efficient Solar-driven Interfacial Water Evaporation

被引：4

作者：

Liang Pingping ^{[1
,2
]}

Liu Shuai ^{[1
]}

Li Hongyi ^{[1
]}

Ding Yadan ^{[1
]}

Wen Xiaokun ^{[1
]}

Liu Junping ^{[1
]}

Hong Xia ^{[1
]}

机构：

[1] Northeast Normal Univ, Minist Educ, Key Lab UV Emitting Mat & Technol, Changchun 130024, Peoples R China

[2] Jilin Agr Sci & Technol Univ, Sch Mech & Civil Engn, Jilin 132101, Jilin, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2021年 / 42卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; Polymer; Phase inversion; Photothermal property; Water evaporation; LOW-COST; BLACK; DESALINATION;

D O I：

10.7503/cjcu20210045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Self-floating porous polyvinylidene fluoride-carbon nanotube (PVDF-CNT) microbeads were pre. pared by a convenient phase inversion method for solar-driven interfacial water evaporation. The unique compo. sition and porous microsphere structure synergistically contribute to efficient sunlight capture, adequate water transport and rapid vapor escape. The higher the content of CNTs is, the better performance the PVDF-CNT microbeads show. The highest light absorption of PVDF-CNT microbeads can reach up to about 94.5% and the water surface temperature quickly rises from 20.8 degrees C to 43.1 degrees C within 2 min illumination. Under the simulated solor irradiation of 1 kW/m(2), the PVDF-CNT microbeads exhibit a water evaporation rate of 1.501 kg/(m(2).h) and a solar energy conversion efficiency of 94.2%.

引用

页码：2689 / 2693

页数：5

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