TY - JOUR
T1 - A hybrid hydrogel with protonated g-C 3 N 4 and graphene oxide as an efficient absorber for solar steam evaporation
AU - Su, Hui
AU - Zhou, Jianhua
AU - Miao, Lei
AU - Shi, Jiaqi
AU - Gu, Yufei
AU - Wang, Pengfei
AU - Tian, Yongzhi
AU - Mu, Xiaojiang
AU - Wei, Anyun
AU - Huang, Lanhui
AU - Chen, Siyi
AU - Deng, Zijun
N1 - Funding Information:
This work was supported by National Natural Science Foundation of China (Grant No. 51572019 , 51602068 ) and Guangxi Natural Science Foundation of China (Grant No. 2015GXNSFFA139002 ). We thank the numerical simulation work by Dr. Wenjiong Cao and Fangming Jiang from Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences.
Funding Information:
This work was supported by National Natural Science Foundation of China (Grant No. 51572019, 51602068) and Guangxi Natural Science Foundation of China (Grant No. 2015GXNSFFA139002). We thank the numerical simulation work by Dr. Wenjiong Cao and Fangming Jiang from Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/7
Y1 - 2019/7
N2 - Carbon-based composites have gained renewed research interest in solar steam generation due to their low cost, durability and high photo-thermal efficiency. However, large-scale applications of carbon-based composites are restricted due to their high-emissivity in a high temperature condition. Here, by using melamine and graphene oxide as raw materials, the protonated g-C 3 N 4 /graphene hybrid hydrogel is prepared via a simple hydrothermal co-assembly method. The obtained self-floating hydrogel can convert the most of solar energy into thermal energy as well as pumping the underneath water to produce steam continuously. Furthermore, the existence of protonated g-C 3 N 4 decreases the emissivity of the composites. As a result, an average evaporation rate of 4.11 kg m −2 h −1 and a superb solar steam generation efficiency of 94.5% under 3-sun illumination are achieved. This hybrid hydrogel is highly promising to provide a solution to enhance solar water evaporation and desalination performance.
AB - Carbon-based composites have gained renewed research interest in solar steam generation due to their low cost, durability and high photo-thermal efficiency. However, large-scale applications of carbon-based composites are restricted due to their high-emissivity in a high temperature condition. Here, by using melamine and graphene oxide as raw materials, the protonated g-C 3 N 4 /graphene hybrid hydrogel is prepared via a simple hydrothermal co-assembly method. The obtained self-floating hydrogel can convert the most of solar energy into thermal energy as well as pumping the underneath water to produce steam continuously. Furthermore, the existence of protonated g-C 3 N 4 decreases the emissivity of the composites. As a result, an average evaporation rate of 4.11 kg m −2 h −1 and a superb solar steam generation efficiency of 94.5% under 3-sun illumination are achieved. This hybrid hydrogel is highly promising to provide a solution to enhance solar water evaporation and desalination performance.
KW - Desalination
KW - Graphene oxide
KW - Hydrogel
KW - Solar steam generation
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U2 - 10.1016/j.susmat.2019.e00095
DO - 10.1016/j.susmat.2019.e00095
M3 - Article
AN - SCOPUS:85061800973
VL - 20
JO - Sustainable Materials and Technologies
JF - Sustainable Materials and Technologies
SN - 2214-9937
M1 - e00095
ER -