摘要
采用Na2CO3脱胶法从蚕茧中提取丝胶作为还原剂和分散剂制备纳米银溶胶.通过ATR-FTIR、TEM、UV-vis等进行了表征,研究了丝胶用量、硝酸银质量浓度、pH、反应温度、反应时间对纳米银溶胶的影响.结果表明,Na2CO3脱胶法提取的丝胶中,丝胶Ⅲ制得的纳米银溶胶性能较好,所制得的纳米银粒子呈球形;合适的纳米银溶胶制备工艺为：15 mL丝胶Ⅲ提取液,2 g/L硝酸银溶液4 mL,pH=9-11,反应温度90℃,反应时间30 min.
Nano-silver sol was prepared using sericin as reducing agent and dispersing agent, which was extracted from cocoons with sodium carbonate （Na2CO3） degumming method. The products were characterized by ATR-FTIR, TEM and UV-vis. The effects of sericin dosage, silver nitrate concentration, pH, reaction temperature and time on the formation of nano-silver sol were studied. The results showed that the nano-silver sol prepared by extracted sericin Ⅲ had the best properties. Spherical nano-silver particles were obtained and the proper technology of preparing nano-sitver sol was that 15 mL of sericin Ⅲ extracted solution, 4 mL silver nitrate solution （2 g/L） and reacted at 90℃ for 30 min under pH=9-11.
出处
《印染助剂》
CAS
北大核心
2014年第6期16-20,共5页
Textile Auxiliaries
