ZnO纳米粒子的超声辅助溶胶-凝胶合成、表征及光催化应用

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-07-01 DOI:10.15251/djnb.2023.183.889

N. Nguyen, V. Nguyen

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引用次数: 1

摘要

本研究采用超声辅助溶胶-凝胶法合成了纳米ZnO颗粒。然后，将材料在400℃、500℃、600℃和700℃的不同温度下烧结。通过XRD、UV-VIS、FE-SEM和TEM对所获得的ZnO纳米颗粒的结构、形态和光学性能进行了表征。结果表明，ZnO纳米粒子具有六方纤锌矿晶体结构，呈球形和六边形，平均粒径为22-30nm。以纳米氧化锌为光催化剂，在紫外光下分解亚甲基蓝。结果表明，该材料能在紫外光下分解亚甲基蓝。600℃烧结的材料获得了最高的效率。由此可以得出结论，ZnO纳米粒子作为光催化剂在水溶液中去除有机染料具有潜在的应用前景。

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Ultrasound-assisted sol-gel synthesis, characterization, and photocatalytic application of ZnO nanoparticles

In this study we synthesized nano-sized ZnO particles by ultrasonic-assisted sol-gel method. The materials were, then, sintered at different temperatures of 400 o C, 500 o C, 600 o C, and 700 o C. The structural, morphological, and optical properties of the obtained ZnO nanoparticles were characterized by XRD, UV VIS, FE-SEM, and TEM. The results showed that ZnO nanoparticles have a hexagonal wurtzite crystalline structure, spherical and hexagonal shapes, and an average size of 22-30 nm. ZnO nanoparticles were used as photocatalysts to decompose methylene blue under ultraviolet light. The results showed that the materials are able to decompose methylene blue under ultra-violet lights. The material sintered 600o C achieved the highest efficiency. From that, it can be concluded that ZnO nanoparticles have potential applications as photocatalysts for organic dyes removal in aqueous solutions.

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