摘要：Interfacial solar steam generation is an efficient water evaporation technology which has promising applications in desalination,sterilization,water purification and treatment.A common component of evaporator design is a thermal-insulation support placed between the photothermal evaporation surface and bulk *** configuration,common in 2-dimensional(2 D)evaporation systems,minimizes heat loss from evaporation surface to bulk water,thus localizing the heat on the evaporation surface for efficient *** design is subsequently directly adopted for 3-dimensional(3 D)evaporators without any consideration if it is ***,unlike 2 D solar evaporators,the 3 D evaporators can also harvest additional energy(other than solar light)from the air and bulk water to enhance evaporation *** this scenario,the use of thermal insulator support is not proper since it will hinder energy extraction from ***,the traditional 3 D evaporator configuration was completely redesigned by using a highly thermally conductive material,instead of a thermal insulator,to connect evaporation surfaces and the bulk *** higher evaporation rates were achieved by this strategy,owing to the rapid heat transfer from the bulk water to the evaporation *** and outdoor tests both confirmed that evaporation performance could be significantly improved by substituting a thermal insulator with thermally conductive *** findings will redirect the future design of 3 D photothermal evaporators.

摘要：solar-driven steam generation is a practical strategy to harness solar energy for desalination and production of clean water with a minimized carbon ***,this strategy suffers from a low evaporation rate under weak illumination on cloudy days or at ***,we present a fabric-based all-weather-available photo-electrothermal steam generator(P/ET-SG)capable of regulating the surface temperature and evaporation rate by the coupling effect of photo-thermal and electro-thermal heating depending on the light *** unprecedented high surface temperature of 52℃ in the wet state and an evaporation rate of 2.61 kg m^(-2) h^(-1) were achieved by the P/ET-SG under 1 sun with only 1 V input voltage owing to the uniform heat distribution and the coupled electro-thermal *** oneway fluidic design of the P/ET-SG effectively prevented salt precipitation during continuous desalination in 24 h and was able to remove salt granules from the evaporation ***,the P/ET-SG demonstrated a high evaporation rate of 2.58 kg m^(-2) h^(-1) in the purification of concentrated saline water and dye-contaminated water with high efficiency(>99.9%).This study offers new thoughts for the design of allweather-available solar steam generators with high efficiency and makes a step forward towards fast purification of concentrated saline water and wastewater.