SusMat (Dec 2022)

Alternative photothermal/electrothermal hierarchical membrane for hypersaline water treatment

  • Miao Wang,
  • Wen He,
  • Yuhui Hua,
  • Xinwen Xie,
  • Shiyan Chen,
  • Lei Zhou,
  • Yunmao Zhang,
  • Yaqi Hou,
  • Shihong Lin,
  • Haiping Xia,
  • Jing Zheng,
  • Xu Hou

DOI
https://doi.org/10.1002/sus2.96
Journal volume & issue
Vol. 2, no. 6
pp. 679 – 688

Abstract

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Abstract Over the last decades, the treatment of the large quantities of hypersaline wastewater generated by conventional industries, inland desalination, and fossil‐fueled power plants has been an important economic issue and also an inescapable green issue. Here, we developed a versatile interfacial heating membrane with alternating utilization of electricity or solar energy for hypersaline water treatment. This hierarchical membrane functions both as a separation membrane and an interface heater, which can quickly (5 wt%), with a high salt rejection rate of 99.99%. This system shows an efficient desalination strategy that can provide fresh water from brines for agriculture and industry, and even for daily life.

Keywords