紫外光表面处理对ZnO纳米粒子的晶体结构与光学性质的影响
发布时间：2018-11-27 08:48
【摘要】：利用溶胶凝胶法制备了ZnO纳米粒子,用紫外光照射对其进行表面处理.探讨了表面处理对ZnO纳米粒子晶体结构与光学性质的影响.结果显示:在晶体结构方面,紫外光照射会降低ZnO纳米粒子的团聚现象,缩短晶格常数,使其所受应力由压缩应力释放变为伸张应力,增大表面能,使能量最佳化并稳定而导致ZnO纳米粒子形成再构.在光学性质方面,紫外光照射会使ZnO纳米粒子表面产生较多的氧空位,而氧空位又会使其表面容易吸附羟基,使得ZnO纳米粒子变得更加亲水.
[Abstract]:ZnO nanoparticles were prepared by sol-gel method and treated by UV irradiation. The effect of surface treatment on the crystal structure and optical properties of ZnO nanoparticles was investigated. The results show that UV irradiation can reduce the agglomeration of ZnO nanoparticles, shorten the lattice constant, change the stress from compressive stress to tensile stress, and increase the surface energy. Energy optimization and stabilization result in the reconfiguration of ZnO nanoparticles. In terms of optical properties, ultraviolet irradiation will lead to more oxygen vacancies on the surface of ZnO nanoparticles, and oxygen vacancies will make it easy to adsorb hydroxyl groups on the surface, which makes ZnO nanoparticles become more hydrophilic.
【作者单位】： 汉中职业技术学院机电工程系;陕西理工大学物理与电信工程学院;汉中市产品质量监督检验所;
【基金】：国家自然科学基金资助(41105107) 陕西省自然科学基础研究计划基金资助(2012JM5014) 陕西省教育厅科学研究计划基金资助(2013JK0617)
【分类号】：TB383.1;TN304.21
[Abstract]:ZnO nanoparticles were prepared by sol-gel method and treated by UV irradiation. The effect of surface treatment on the crystal structure and optical properties of ZnO nanoparticles was investigated. The results show that UV irradiation can reduce the agglomeration of ZnO nanoparticles, shorten the lattice constant, change the stress from compressive stress to tensile stress, and increase the surface energy. Energy optimization and stabilization result in the reconfiguration of ZnO nanoparticles. In terms of optical properties, ultraviolet irradiation will lead to more oxygen vacancies on the surface of ZnO nanoparticles, and oxygen vacancies will make it easy to adsorb hydroxyl groups on the surface, which makes ZnO nanoparticles become more hydrophilic.
【作者单位】： 汉中职业技术学院机电工程系;陕西理工大学物理与电信工程学院;汉中市产品质量监督检验所;
【基金】：国家自然科学基金资助(41105107) 陕西省自然科学基础研究计划基金资助(2012JM5014) 陕西省教育厅科学研究计划基金资助(2013JK0617)
【分类号】：TB383.1;TN304.21
【相似文献】
相关期刊论文 前10条
1 杨丽丽;赵庆祥;马格纳斯·维兰德;;晶核层对ZnO纳米棒阵列结构和性能的影响(英文)[J];吉林师范大学学报(自然科学版);2009年03期
2 高铭;郎集会;杨丽丽;刘晓艳;刘惠莲;杨景海;;溶胶-凝胶法制备ZnO纳米结构(英文)[J];吉林师范大学学报(自然科学版);2009年03期
3 王金芳;孙晓燕;刘长友;介万奇;;Zn基ZnO纳米棒阵列的制备和发光特性[J];科学技术与工程;2012年13期
4 张健;高军;王殿荣;史克英;宫丽红;;花状ZnO纳米晶的合成及其气敏性能研究[J];黑龙江大学自然科学学报;2012年02期
5 王福学;蔡小龙;闫大为;朱兆e，
本文编号：2360115
本文链接：https://www.wllwen.com/kejilunwen/cailiaohuaxuelunwen/2360115.html
