中南大学学报（自然科学版）2013，Vol.44Issue(1)：60-66,7.
微/纳米ZnO的控制合成及其光催化性能
Controlled-synthesis and photocatalytic performance of micro/nano ZnO
摘要
Abstract
Using zinc chloride and sodium hydroxide as the reactants, needle-, flower-, rod- and jujubestone-like ZnO micro-/nano-crystals were prepared via a low-temperature liquid phase method by controlling the composition of precursor solution. SEM, EDS, XRD, FT-IR, UV-Vis DRS and TG-DTA were used to characterize the products. Possible formation mechanism for these ZnO micro-/nanocrystals with different morphologies was discussed. The as-prepared ZnO powders were applied in photocatalytic degradation of methyl orange as model of organic pollutant during UV irradiation. The results show that the size and morphology of ZnO crystal are determined by its growth habit as well as nucleation and growth rates. A close relationship exists between the photocatalytic performance and the particle morphology and size. Rod- and jujubestone-like ZnO exhibit very strong photocatalytic activity, and methyl orange was completely degraded within 120 min.关键词
ZnO/液相/光催化性能/甲基橙Key words
ZnO/ liquid phase/ photocatalytic performance/ methyl orange分类
化学化工引用本文复制引用
谢娟,边丽,王延吉,魏雨..微/纳米ZnO的控制合成及其光催化性能[J].中南大学学报（自然科学版）,2013,44(1):60-66,7.基金项目
国家自然科学基金资助项目(21206026) （21206026）
河北省自然科学基金资助项目(B2012402011) （B2012402011）
邯郸市科学技术研究与发展计划项目(1223120094) （1223120094）
河北省高等学校科学技术研究优秀青年基金资助项目(Y2012028) （Y2012028）
