A hybrid hydrogel with protonated g-C 3 N 4 and graphene oxide as an efficient absorber for solar steam evaporation

Hui Su, Jianhua Zhou, Lei Miao, Jiaqi Shi, Yufei Gu, Pengfei Wang, Yongzhi Tian, Xiaojiang Mu, Anyun Wei, Lanhui Huang, Siyi Chen, Zijun Deng

研究成果: Article査読

24 被引用数 (Scopus)


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.

ジャーナルSustainable Materials and Technologies
出版ステータスPublished - 2019 7

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 材料科学(全般)
  • 廃棄物管理と処理
  • 産業および生産工学


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