纳米银的制备与表征
|
摘要
以聚乙烯吡咯烷酮(PVP)为稳定剂,采用硼氢化钠还原硝酸银的方法制备纳米银.通过比较不同制备条件下得到的纳米银的紫外-可见吸收特性探究了硝酸银浓度、硼氢化钠浓度及PVP浓度对纳米银粒径的影响.采用电子透射电镜表征了纳米银的形貌.结果表明:AgNO_3浓度为0.02 mol/L、NaBH_4含量为0.03%及PVP含量为2%的实验条件下可制得分散均匀,平均粒径在10～15 nm之间的球形纳米银颗粒.
Using polyvinylpyrrolidone as stabilizer,nano-silver was obtained by sodium borohydride reduction method.The effect of concentrations of silver nitrate,sodium borohydride and PVP on the ultraviolet absorption properties of silver nanoparticle was investigated by UV-Vis absorption spectra.The morphology of silver nanoparticle was characterized by transmission electron microscope image.The results showed that the experimental concentration of 0.02 mol/L AgNO_3,0.03% NaBH_4,and 2% PVP is considered as the optimal condition to prepare silver nanoparticle with small particle size and uniform distribution.Under the optimal condition,we can obtain 10～15 nm silver nanoparticle.
Using polyvinylpyrrolidone as stabilizer,nano-silver was obtained by sodium borohydride reduction method.The effect of concentrations of silver nitrate,sodium borohydride and PVP on the ultraviolet absorption properties of silver nanoparticle was investigated by UV-Vis absorption spectra.The morphology of silver nanoparticle was characterized by transmission electron microscope image.The results showed that the experimental concentration of 0.02 mol/L AgNO_3,0.03% NaBH_4,and 2% PVP is considered as the optimal condition to prepare silver nanoparticle with small particle size and uniform distribution.Under the optimal condition,we can obtain 10～15 nm silver nanoparticle.
引文
[1] 王迎春,宗彦坊,蓝蓉.纳米银的制备与表征[J].金属功能材料,2013,20(2):27-30.
[2] BRUST M,KIELY C J.Some recent advance sinnano structure preparation from gold and silver:a short topical review[J].Colloid Sand Surfaces A:Physic chemical and Engineering Aspects,2002,202(2-3):175-186.
[3] 孙墨杰,贾若琨,张宇帅,等.纳米银的制备研究[J].东北电力大学学报,2008,28(1):5-7.
[4] 刘齐鲁,董立忠.浅谈纳米银的制备与应用 [J].小品文选刊,2017 (4):266.
[5] 赵德强,马立斌,杨君.银粉及电子浆料产品的现状及趋势[J].电子元件与材料,2005,24(6):54-56.
[6] 腾乐金,钟学明,赵祎,等.还原保护法制备纳米银粉及其表征[J].广东化工,2008,35(10):35-38.
[7] 张治,刘继宪,刘艳伟,等.纳米银颗粒尺寸的可控制备[J].山东工业技术,2018 (5):198.
[8] 王洪超,李雪嵩,刘鹏.化学还原法制备纳米片状银粉的实验研究[J].黄金,2018,39(1):5-8.
[9] 彭子飞,汪国忠,张立德,等.用银氨配离子还原法制备纳米银[J].材料研究学报,1997,11(1):104-106.
[10] 徐光年,乔学亮,邱小林.纳米银制备研究进展[J].材料导报,2010,24(11):140.
[11] ALVAREZ M M,KHOURY J T,SCHAAF T G,et al.Optical absorption spectra of nanocrystal gold molecules[J].Journal of Physical Chemistry B,1997,101(109):3 706-3 712.
[2] BRUST M,KIELY C J.Some recent advance sinnano structure preparation from gold and silver:a short topical review[J].Colloid Sand Surfaces A:Physic chemical and Engineering Aspects,2002,202(2-3):175-186.
[3] 孙墨杰,贾若琨,张宇帅,等.纳米银的制备研究[J].东北电力大学学报,2008,28(1):5-7.
[4] 刘齐鲁,董立忠.浅谈纳米银的制备与应用 [J].小品文选刊,2017 (4):266.
[5] 赵德强,马立斌,杨君.银粉及电子浆料产品的现状及趋势[J].电子元件与材料,2005,24(6):54-56.
[6] 腾乐金,钟学明,赵祎,等.还原保护法制备纳米银粉及其表征[J].广东化工,2008,35(10):35-38.
[7] 张治,刘继宪,刘艳伟,等.纳米银颗粒尺寸的可控制备[J].山东工业技术,2018 (5):198.
[8] 王洪超,李雪嵩,刘鹏.化学还原法制备纳米片状银粉的实验研究[J].黄金,2018,39(1):5-8.
[9] 彭子飞,汪国忠,张立德,等.用银氨配离子还原法制备纳米银[J].材料研究学报,1997,11(1):104-106.
[10] 徐光年,乔学亮,邱小林.纳米银制备研究进展[J].材料导报,2010,24(11):140.
[11] ALVAREZ M M,KHOURY J T,SCHAAF T G,et al.Optical absorption spectra of nanocrystal gold molecules[J].Journal of Physical Chemistry B,1997,101(109):3 706-3 712.