Hydrophobic W₁₈O₄₉ mesocrystal on hydrophilic PTFE membrane as an efficient solar steam generation device under one sun

Abstract

W18O49@PDMS mesocrystal membrane with the hydrophobic top and the hydrophilic bottom possesses the properties of self-floating and water transportation simultaneously.

Bioinspired Soot‐Deposited Janus Fabrics for Sustainable Solar Steam Generation with Salt‐Rejection

“…Further increase the deposition time to 3 min, the evaporation rate increased to 0.856 kg m −2 h −1 , about 2.8 times that of pure water. We defined the thermal efficiency (η) as η = m h LV / q i C opt , where m is the mass flux, h LV is the liquid–vapor phase change enthalpy at 99 °C (2260 MJ kg −1 ), and q i C opt is the power density of solar irradiation . The efficiency is calculated to be 53.7%.…”

Self-floating hybrid hydrogels assembled with conducting polymer hollow spheres and silica aerogel microparticles for solar steam generation

“…Carbon-based materials, 22,23 conducting polymers, 24 bio-inspired structures, 25,26 and aerogels [27][28][29][30] have been used to improve energy connement by heat localization. Freezing and carbonization have been applied to produce large channels for rapid water supply, [31][32][33] and superhydrophobic modication was used to fabricate self-oating membranes 34 for solar steam generation. Despite the improvement, more functional and robust materials and devices based on them are still desirable to solve all the challenges.…”

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

“…[65] Similarly, a cotton rod was designed as the stem of umbrella-like solar evaporator to act as 1D water supply channel. Until now, numerous 3D porous materials have been applied to efficiently pump up water into solar absorber, including cellulose fabric, [3] lotus seedpods, [89] hydrophilic poly(tetra-fluoroethylene) (PTFE) membrane, [130] cotton, [66] aerogels, [131] sponge, [132] and hydrogel. Besides, a confined 2D water pathway was designed for water supplies of solar absorber (laminated GO film) through a thin cellulose layer wrapped over the surface of a thermal insulator in 2016.…”