TY - JOUR
T1 - Reduced Red Mud as the Solar Absorber for Solar-Driven Water Evaporation and Vapor-Electricity Generation
AU - Wang, Pengfei
AU - Wang, Xiaoyang
AU - Chen, Siyi
AU - Zhang, Jiahong
AU - Mu, Xiaojiang
AU - Chen, Yulian
AU - Sun, Zhiqiang
AU - Wei, Anyun
AU - Tian, Yongzhi
AU - Zhou, Jianhua
AU - Liang, Xiaoxin
AU - Miao, Lei
AU - Saito, Nagahiro
N1 - Funding Information:
This work was supported by the Guangxi Natural Science Foundation of China (Grant nos. 2019GXNSFFA245010, 2021GXNSFAA075032, and 2019GXNSFBA245028) and the Guangxi Science and Technology Project (Grant nos. AD19245177, AD18281057, and AD19245160) and the Basic Ability Promotion Project for Young College Teachers in Guangxi Zhuang Autonomous Region (No. 2018KY020).
Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.
PY - 2021/7/7
Y1 - 2021/7/7
N2 - The emergent solar-driven water evaporation technology provides a reassuring scheme for red mud (RM) utilization in environment and materials science. With fewer restrictions on raw materials, wide availability of sheer quantity, and high complexity in chemical composition, the RM may be a promising candidate for solar absorbers. Here, we developed a novel solar absorber with reduced RM. It features favorable light absorption and photothermal conversion ability using biomass pyrolysis. When added to the polyvinyl alcohol and chitosan gel substrate, the light absorptance can reach 94.65%, while the corresponding evaporation rate is as high as 2.185 kg m-2 h-1 under an illumination density of 1 kW m-2. We further demonstrated its potential as an efficient solar absorber in the solar-driven water evaporation and the thermoelectric device to realize the stable and efficient coproduction of vapor and electricity.
AB - The emergent solar-driven water evaporation technology provides a reassuring scheme for red mud (RM) utilization in environment and materials science. With fewer restrictions on raw materials, wide availability of sheer quantity, and high complexity in chemical composition, the RM may be a promising candidate for solar absorbers. Here, we developed a novel solar absorber with reduced RM. It features favorable light absorption and photothermal conversion ability using biomass pyrolysis. When added to the polyvinyl alcohol and chitosan gel substrate, the light absorptance can reach 94.65%, while the corresponding evaporation rate is as high as 2.185 kg m-2 h-1 under an illumination density of 1 kW m-2. We further demonstrated its potential as an efficient solar absorber in the solar-driven water evaporation and the thermoelectric device to realize the stable and efficient coproduction of vapor and electricity.
KW - red mud
KW - solar photothermal
KW - solar-driven water evaporation
KW - vapor-electricity cogeneration
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U2 - 10.1021/acsami.1c05228
DO - 10.1021/acsami.1c05228
M3 - Article
C2 - 34170099
AN - SCOPUS:85110260113
SN - 1944-8244
VL - 13
SP - 30556
EP - 30564
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
IS - 26
ER -