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Facile Preparation of Three-Dimensional MoS2 Aerogels for Highly Efficient Solar Desalination
journal contribution
posted on 2020-07-09, 19:07 authored by Qingmiao Wang, Qijing Guo, Feifei Jia, Yanmei Li, Shaoxian SongAerogels,
with porous channels for water supply and vapor escape,
can provide many inherent advantages in solar desalination and wastewater
treatment. For the first time, this work demonstrates the preparation
of a novel three-dimensional (3D) MoS2-based aerogel with
high porosity and mechanical stability by a facile strategy for solar
desalination. This 3D MoS2 aerogel has an excellent light-absorbing
efficiency of over 95% within the whole solar spectrum range, enabling
a high evaporation efficiency of 88.0% under a low solar irradiation
of 1.0 kW m–2 and superhigh evaporation efficiencies
of over 90% under a slightly enhanced solar irradiation of 1.5–3.0
kW m–2 as well as a remarkable desalination performance.
In addition, the excellent mechanical stability of this MoS2 aerogel renders it to be reused for at least 10 cycles with stable
water productivity. Because of its 3D architectures with high porosity
and easy separation, this MoS2-based aerogel also provides
promising applications in solar-driven water purification, sterilization,
and so forth.