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纳米NiO光催化剂性质对降解亚甲基蓝染料的影响 被引量：7

Effects of Catalyst Characters on the Photocatalytic Activities of NiO Nanoparticles in the Degradation of Methylene Blue
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摘要 采用水热合成并辅助以高温煅烧的方法,获得了系列不同形貌和大小的纳米NiO样品,通过SEM、XRD、TG和UV-vis等方法进行性质表征.使用不同性质的NiO样品做催化剂,在紫外光(UV)照射下降解亚甲基蓝(MB)的研究表明,由强碱NaOH与镍盐反应获得前驱体,再经600℃煅烧得到的NiO光催化剂,有晶体结构完整,粒径小,比表面积大,紫外吸收强,光照下产生的羟基自由基OH-含量高,降解效率最好. By hydrothermal method combining a calcination process, phologies and sizes were synthesized. The properties of NiO samples UV - vis analysis. In the photodegradation of methylene blue （MB） the NiO nano- catalysts with different mor- were characterized by SEM, XRD, TG and under UV- light irradiation on NiO surface, the result showed that the NiO sample which was synthesized by the reaction of nickel nitrate with sodium hydroxide and calcination at 600 ℃ exhibits the highest photocatalytic activity in all of as - prepared NiO samples. This is be- cause the NiO has a small particle size, large surface area, and intense UV absorption, inducing the increase of hy- droxy radical OH · and the enhance of degradation efficiency
作者 袁梦 万霞 铁绍龙
机构地区 华南师范大学化学与环境学院
出处 《华南师范大学学报（自然科学版）》 CAS 北大核心 2013年第1期62-67,共6页 Journal of South China Normal University(Natural Science Edition)
基金 广东省自然科学基金项目(031505)
关键词 水热合成 纳米NIO 降解亚甲基蓝 光催化 hydrothermal synthesis nano - NiO degradation of methylene blue photocatalysis
分类号 O614.81 [理学—无机化学]
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参考文献15

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二级参考文献19

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华南师范大学学报（自然科学版）
2013年 第1期

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