Ionic hyper-cross-linked polymers monoliths for efficient solar steam generation

Autor: Zhaoqi Zhu, An Li, Hanxue Sun, Weidong Liang, Dongyuan Wei, Fei Wang
Rok vydání: 2021
Předmět:
Zdroj: European Polymer Journal. 147:110281
ISSN: 0014-3057
DOI: 10.1016/j.eurpolymj.2021.110281
Popis: Solar steam generation (SSG) based on photothermal materials by only utilizing solar energy as input has emerged as one of the efficient technologies for desalination. Herein, we present a method for the synthesis of novel monolithic aerogels composed of ionic hyper-cross-linked polymers (HCP-MINs) as efficient solar steam generators by coating acetylene black on their surface as a light-to-heat conversion layer (named as CHCP-MINs). The CHCP-MINs show large specific surface area (976.7 m2 g−1), low thermal conductivity (0.074 W m−1 K−1) and high light absorption (ca. 99%), making them ideal candidates as solar steam generators by combination with their superior mechanical flexibility. As expected, the HCP possess a high energy conversion efficiency of 86.82% under 1 sun irradiation. Taking the advantages their inherent merits mentioned above and coupling with their simple and scalable manufacture, such CHCP-MINs may have great potentials in a variety of useful applications, including power generation, seawater desalination, wastewater treatment, steam sterilization and so on.
Databáze: OpenAIRE