Abstract
Multi-layered spherical ZnO micro/nano-crystals were synthesized by means of hydrothermal and antisolvent method from the urea-choline chloride deep eutectic solvent(UCC-DES). The effects of reaction time,amount and concentrations of antisolvents on the morphology of ZnO micro/nano-crystals were investigated,and the formation of ZnO micro/nano-crystals was discussed. Furthermore,the photocatalytic activities of the as-prepared ZnO crystals for the degradation of methyl orange were investigated. The results indicate that multi-layered spherical ZnO micro/nano-crystals exhibit a superior photocatalytic activity. The synthetic method of ZnO is facile,safe and environmentally friendly,it is in line with the requirements of green chemistry and should have widespread application in the future.
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