光催化材料的熔盐法制备研究进展OA

Against the backdrop of escalating global energy crisis and environmental pollution,photocatalytic technology,owing to its green and renewable characteristics,holds promise as a crucial means to address energy and environmental challenges.Currently,common methods for preparing photocatalytic materials include traditional solid-state methods and wet chemical approaches;however,these methods often struggle to simultaneously achieve both high quality and high yield,thereby limiting the widespread application of photocatalytic technology.In contrast,molten salt method has garnered significant research interest due to its distinct advantages,including simple operation,high economic efficiency,and ease of large-scale production.The inherent limitations of traditional synthesis methods were first analyzed.Subsequently,based on the classification and characteristics of molten salts,the selection criteria for single salts and mixed salts,as well as their melting points,deliquescence,and safety,were discussed.Then,the intrinsic mechanisms through which molten salt methods optimize the performance of photocatalytic materials were systematically elaborated from three dimensions:morphology regulation,crystallinity enhancement,and elemental doping.Furthermore,the practical applications of molten salt method in preparing diverse photocatalytic materials,including metal oxides,metal sulfides,carbon nitrides,and perovskites,were reviewed.Finally,addressing the current challenges molten salt methods face regarding cost and environmental friendliness,it was proposed that future efforts should be focused on developing more environmentally benign and economical molten salt systems to promote the sustainable development of this method in the field of photocatalytic material synthesis.