Superwetting and mechanically robust MnO₂ nanowire–reduced graphene oxide monolithic aerogels for efficient solar vapor generation

Abstract

Through the method of integrated molding and simple spraying, our PNGA can be easily prepared, which exhibit solar steam generation efficiency of 93.8% under 1 sun and excellent barrier properties for pollutant, thus increase practical possibilities.

Recent Progress in Graphene/Polymer Nanocomposites

“…To date, the rGO porous nanocomposites as photothermal material for solar steam generation have been extensively investigated with focus on studying the reduction degree and distribution of GO. [ 231–239 ]…”

Nanoenabled Photothermal Materials for Clean Water Production

“…Reproduced with permission. [ 70 ] Copyright 2019, The Royal Society of Chemistry. d) the unique working principle of the solar steam generator using a 3D water membrane.…”

“…Under 1 kW m −2 illumination intensity, photothermal efficiency recorded up to 93.8% which is almost 4.9 times higher compared to pure water (19.1%) along with good mechanical stability and outstanding filtration ability for ionic and other impurities with almost unaltered efficiency after conducting ten tests consecutively. [ 70 ] Chen et al. (2017) prepared self‐ordered hydrophobic microspheres based on Fe 3 O 4 , Mn Fe 2 O 4 , Zn Fe 2 O 4 , and Co Fe 2 O 4 capable of self‐floating on the water for solar thermal evaporation.…”

Superhydrophilic and Oleophobic Porous Architectures Based on Basalt Fibers as Oil‐Repellent Photothermal Materials for Solar Steam Generation

“…We previously reported efficient photothermal materials based on MnO 2 nanowires and bilayered attapulgite . Herein, we report a new strategy for fabrication of an oleophobic porous architectures based on basalt fibers (O‐BFT), which was prepared by carbonization of the mixture of basalt fibers and tissue paper followed by an oleophobic modification, as a novel oil‐repellent photothermal material for efficient solar steam generation.…”

“…We previously reported efficient photothermal materials based on MnO 2 nanowires [37] and bilayereda ttapulgite. [38] Herein, we report an ew strategy forf abrication of an oleophobic porous architectures based on basalt fibers (O-BFT), which was prepared by carbonization of the mixture of basaltf ibers and tissue paper followed by an oleophobic modification, as a novel oil-repellentp hotothermal material for efficient solar steam generation.B asalt fibers weree mployed as raw materials, owing to their comprehensive merits, including their abundance and easy availability,l ow cost, thermala nd physicochemicals tability,l ow thermalc onductivity,a nd environmentally friendly nature.…”