[1]王森林,卢雪蓉.微量水对ZnO胶体性质的影响[J].华侨大学学报(自然科学版),2000,21(2):149-152.[doi:10.3969/j.issn.1000-5013.2000.02.010]
　Wang Senlin,Lu Xuerong.Effect of Trace Water on the Property of ZnO Colloid[J].Journal of Huaqiao University(Natural Science),2000,21(2):149-152.[doi:10.3969/j.issn.1000-5013.2000.02.010]
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微量水对ZnO胶体性质的影响()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第21卷
期数:
2000年第2期
页码:
149-152
栏目:
出版日期:
2000-04-20

文章信息/Info

Title:
Effect of Trace Water on the Property of ZnO Colloid
文章编号:
1000-5013(2000)02-0149-04
作者:
王森林; 卢雪蓉
华侨大学化工学院, 泉州362011
Author(s):
Wang Senlin;  Lu Xuerong
College of Chem. Eng., Huaqiao Univ., 362011, Quanzhou
关键词:
ZnO胶体;  溶胶-凝胶法;  光学性质
Keywords:
ZnO colloid;  sol gel method;  optical property
分类号:
O648
DOI:
10.3969/j.issn.1000-5013.2000.02.010
摘要:
以甲醇为溶剂,在 Zn2 + 过量的情况下,用溶胶 -凝胶法制备 Zn O胶体,并着重研究微量水的加入对 Zn O胶体粒径和性质的影响 .结果表明,在制备过程中,加水量越大,所得 Zn O胶粒粒径越大 .因此,可通过加水量来控制 Zn O胶粒的大小,而加水量对 Zn O胶体性质,如 p H值、吸收光谱和荧光光谱有影响 .讨论荧光产生的机理和加水量对荧光强度的影响,发现加水量对防止光生空穴与光生电子复合有重要作用 .
Abstract:
Taking methanol as solvent, the authors prepare ZnO colloid by sol gel method under the condition of excessive Zn 2+; and inquire into the effect of trace water addition on the particle diameter and property of ZnO colloid. As shown by the results, the more water addition during the process of preparation the larger the particle diameter of ZnO colloid. Consequently, water addition is able to control the size of colloidal particle; and water additon will influence properties of ZnO colloid such as pH value, absorption spectrum and fluorescence spectrum. A discussion is devoted to mechanism of fluorescence emergence and to effect of water addition on intensity of fluorescence. Water addition is found to be important for avoiding photoproduced hole and photoproduced electron recombination.

参考文献/References:

[1] 陈四海, 任新民. ZnO纳米粒子的物理性质-微量水对荧光的影响 [J]. 感光科学与光化学, 1994(3):268-272.
[2] Markus H, Horst W, Araim H. Photochemistry and radiation chemistry of colloidal semiconductors(23)Electron storage on ZnO particles and size quantization [J]. Journal of Physical Chemistry, 1988, (23):482-487.
[3] Prashant V K. Brian photophysics and photochemistry of quantized ZnO colloids [J]. Journal of Physical Chemistry, 1992, (16):6829-6834.doi:10.1021/j100195a055.
[4] Linsebigler A L, Lu Guangquan, John T Y. Photocatalysis on TiO2 surfaces:principles, mechanisms, and seleced resuits [J]. Chemical Reviews, 1995, (3):735-758.doi:10.1021/cr00035a013.

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更新日期/Last Update: 2014-03-23