桔梗多糖软模板法制备纳米硒及表征  

Preparation and Characterization of Nano-selenium Using Platycodon Grandiflorum Polysaccharides as Soft Template

作　　者：郑晓凤[1] 侯丽然[1] 廉亚楠 赵胜男[1] 李贵森[1] 高金波[1] 

机构地区：[1]佳木斯大学黑龙江省教育厅生物药制剂重点实验室,黑龙江佳木斯154007

出　　处：《广东化工》2016年第16期25-26,22,共3页Guangdong Chemical Industry

基　　金：佳木斯大学研究生科技创新项目(LM2015-095)

摘　　要：以桔梗多糖为模板,通过亚硒酸钠与抗坏血酸反应制备纳米硒,探讨多糖浓度,抗坏血酸和亚硒酸钠配比,反应时间,反应温度等条件对产物粒度的大小、形貌的影响,并通过光谱法,透射电镜(TEM)以及X射线衍射(XRD)等手段对产物进行表征。结果表明当多糖浓度为100 mg/L,抗坏血酸和亚硒酸钠物质的量比值为3∶1,40℃条件下反应4 h得到的纳米硒粒径最小,平均粒径约为40 nm左右。Nano-selenium was prepared using Platycodon grandiflorum polysaccharides as template by reaction of selenious acid with ascorbicacid. The effects of reactant concentration, ascorbic acid and sodium selenite ratio, reaction time,temperature and other experimental conditions on particle size and morphology of product were studied. The products were characterized by UV-absorption, TEM and X-ray diffraction（XRD）.The results showed that when the reaction system is in the water bath at 40 ℃ for 4 h with PGF mass fraction 100 mg/L and mass ratio of selenious acid to ascorbicacid 3 ： 1, the redand uniform seleniumis obtained.It saverage size is about 40 nm.

关 键 词：桔梗多糖 抗坏血酸 纳米硒 结构表征 

分 类 号：TQ[化学工程]