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[1]王宝才,李红月,俞娟,等.制备ZnO晶须的影响因素及其紫外吸收性能[J].南京工业大学学报(自然科学版),2016,38(02):82-87.[doi:10.3969/j.issn.1671-7627.2016.02.016]
 WANG Baocai,LI Hongyue,YU Juan,et al.Influence factors in preparing ZnO whiskers and ultraviolet absorption performance[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(02):82-87.[doi:10.3969/j.issn.1671-7627.2016.02.016]
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制备ZnO晶须的影响因素及其紫外吸收性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年02期
页码:
82-87
栏目:
出版日期:
2016-04-10

文章信息/Info

Title:
Influence factors in preparing ZnO whiskers and ultraviolet absorption performance
文章编号:
1671-7627(2016)02-0082-06
作者:
王宝才李红月俞娟黄培
南京工业大学 化工学院,江苏 南京 210009
Author(s):
WANG BaocaiLI HongyueYU JuanHUANG Pei
College of Chemical Engineering,Nangjing Tech University,Nanjing 210009,China
关键词:
针状ZnO晶须 影响因素 紫外吸收
Keywords:
needle-like ZnO whisker influence factors ultraviolet absorption
分类号:
O784
DOI:
10.3969/j.issn.1671-7627.2016.02.016
文献标志码:
A
摘要:
在高碱度条件下,以ZnCl2和NaOH为主要原料,氟碳类表面活性剂FC-NO1为表面活性剂,采用低温液相恒温陈化法制备针状ZnO晶须。采用X线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、能谱仪(EDS)和紫外-可见分光光度计(UV-Vis)对ZnO晶须的结构、物相组成、形貌及紫外吸收能力进行表征。考察反应物料配比、Zn2+浓度、陈化温度及陈化时间对制备针状ZnO晶须的影响,并初步探讨针状ZnO晶须的成核和生长机制。结果表明:制备针状ZnO晶须的优化条件为初始浓度0.2~0.3 mol/L,反应物料配比c(Zn2+):c(OH-)=1:7,陈化温度85 ℃,陈化时间5 h。在最优条件下制得了形貌良好、结晶完全、纯度较高、长径比为15左右的针状ZnO晶须。UV-Vis吸收光谱显示产物在整个紫外波段有很强的吸收能力,且出现了轻微的蓝移现象。
Abstract:
Under the condition of high alkalinity,ZnO whiskers were prepared from zinc salt aqueous solution at low temperature with ZnCl2 and NaOH as the main raw materials,FC-NO1 as surfactant.The structure,phase composition,morphology, and ultraviolet absorption capacity of ZnO whiskers were investigated by X-ray diffraction(XRD),field-emission scanning electron microscopy(FESEM),energy-dispersive spectrometer(EDS), and ultraviolet-visible spectrophotometer(UV-Vis),while the influences of reaction material ratio,Zn2+ concentration,aging temperature and aging time on the needle-like ZnO whiskers were investigated,and the nucleation and the growth mechanism of ZnO whiskers were discussed.Results showed that the optimized conditions for preparing needle-like ZnO whisker were the initial concentration of zinc ions of 0.2-0.3 mol/L,the ratio of c(Zn2+)to:c(OH-)of 1-7,the aging temperature of 85 ℃ and aging time of 5 h.Under the optimal conditions,needle-like ZnO whiskers with good morphology,complete crystallization and high purity were prepared with its length to diameter ratio about 15.The UV-Vis absorption spectra showed that the product in the ultraviolet band had strong absorption ability with little blue shift.

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备注/Memo

备注/Memo:
收稿日期:2015-05-16
作者简介:王宝才(1992—),男,江苏宿迁人,硕士,主要研究方向为低维无机纳米材料; 黄培(联系人),教授,E-mail:phuang@njtech.edu.cn.
引用本文:王宝才,李红月,俞娟,等.制备ZnO晶须的影响因素及其紫外吸收性能[J].南京工业大学学报(自然科学版),2016,38(2):82-87..
更新日期/Last Update: 2016-03-20