▎ 摘　　要

Solar driven steam generation is a typical application of solar energy harvesting for clean water production, which has undergone a long-term development. Up to now, a desirable evaporation efficiency has been achieved in lab-scale via advanced materials and structural design However, to maintain a stable performance for longterm practical application, the simplicity of fabrication process, the cost of the raw material and the salt accumulation issue have to be taken into consideration. Here, this research proposed an efficient solar evaporator based on laser induced graphene (LIG) and the commercialized nickel foam. The nickel foam was preferred as the skeleton of the evaporator coupling with hydrophilic polyvinyl alcohol (PVA) to provide sufficient water pathways with reduced water vaporization enthalpy in the bottom layer of the solar evaporator. In addition, plasmonic antimony doped tin oxide (ATO) nanoparticles were introduced into the porous graphene to further enhance the solar absorption and photothermal conversion. Thus, the 3D evaporator exhibits a high evaporation efficiency of 2.21 kg m- 2 h-1 in salt water (20 wt% NaCl) under 1 solar irradiation (1 kw m-2). Moreover, the evaporator enables a stable evaporation performance upon the saline water during a 120 h test, with no salt crystals accumulated on the surface of evaporator. It is believed that this work presents a potential simple pathway to design and fabricate a portable and efficient evaporator equipped with efficient LIG nanocomposite as an efficient solar absorber.