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Tough, durable and saline-tolerant CNT@Gel-nacre nanocomposite for interfacial solar steam generation by Yang Yang; Yuan He; Sihui Yang; Diandian Dong; Jingjing Zhang; Jiansen Ding; Jingwen Zhang; Yong Mei Chen is a Chemistry article available to read on EtoBox.

What is Tough, durable and saline-tolerant CNT@Gel-nacre nanocomposite for interfacial solar steam generation about?

Solar-driven interfacial evaporation materials based on nanocomposite hydrogels have emerged for seawater desalination. Nevertheless, the issue of mechanical degradation derived from the swelling behavior of hydrogel is often seriously overlooked, which strongly hinder the practical application for long-term solar vapor generation, especially in high-salinity brine. Herein, a novel CNT@Gel-nacre with enhanced capillary pumping design has been proposed and fabricated for tough and durable solar-driven evaporator through uniformly doping carbon nanotubes (CNTs) into the tough gel-nacre. Particularly, the salting out process gives rise to volume shrinkage and phase separation of polymer chains, endowing the nanocomposite hydrogel with significantly enhanced mechanical properties while simultaneously rendering more compact water transportation channels, boosting the capillary pumping. Based on this unique design, the gel-nacre nanocomposite exhibits outstanding mechanical strength (13.41 MPa, 55.60 MJ m-3 toughness), especially mechanical durability in high salinity brine for long-term service. Furthermore, excellent water evaporation rate of 1.31 kg m-2 h-1 and conversion efficiency o

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Author

Yang Yang; Yuan He; Sihui Yang; Diandian Dong; Jingjing Zhang; Jiansen Ding; Jingwen Zhang; Yong Mei Chen

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Chemistry (Physical Sciences)