Highly Efficient Photothermal Conversion and Water Transport during Solar Evaporation Enabled by Amorphous Hollow Multishelled Nanocomposites (Adv. Mater. 7/2022)

Water Purification In article number 2107400, Suojiang Zhang, Dan Wang, and co-workers report an ultrastable amorphous Ta2O5/C nanocomposite with a hollow multishelled structure for solar evaporation, which results in highly efficient photoabsorption, photothermal conversion, and promoted water transport. Thus, a superfast evaporation speed of 4.02 kg m−2 h−1 is achieved. Importantly, the ion concentration meets the World Health Organization's drinking-water standard after purification, even under extreme conditions.