摘要
将辉光放电电解等离子体引发合成的聚乙烯基吡咯烷酮/丙烯酸(PVP/AAc)水凝胶用于吸附化学还原和晶种诱导结合法制备银球、金棒和Aurod@Ag核壳纳米颗粒。采用红外光谱和扫描电镜对凝胶的结构和形貌进行表征,采用紫外-可见分光光度计和透射电子显微镜对核壳纳米颗粒进行表征。结果表明:该凝胶对水相中的金银纳米粒子有很强的吸附能力,尤其对近球形纳米粒子更具有良好的吸附效果。PVP/AAc水凝胶可用于水相中纳米粒子的富集、分离及回收。
The polyvinylpyrrolidone/acrylic acid(PVP/AAc) hydrogel was prepared by glow discharge plasma technology and used to adsorb silver nanospheres,gold nanorods and Aurod@ Ag core-shell nanoparticles in aqueous phase. The structure and morphology of the hydrogel were characterized by FT-IR and SEM. The nano-particles were prepared by means of combining chemical reduction with the seed crystal induction,and then characterized by UV-Vis and TEM. The results showed that the PVP/AAc had a strong adsorptive ability and a high absorptive effect for gold and silver nanoparticles in aqueous solution,especially for nanospheres. Therefore,PVP/AAc hydrogel can be used as a promising adsorbent for the separation,removal and recovery of the valuable nanoparticles from aqueous solution.
作者
龙世佳
曹雅蕾
司长代
赵天宇
王晓峰
Long Shijia;Cao Yalei;Si Changdai;Zhao Tianyu;Wang Xiaofeng(College of Chemistry and Chemical Engineering,Tianshui Normal University,Tianshui 741001;Qiushi Honors College,Tianjin University,Tianjin 300072)
出处
《化工新型材料》
CAS
CSCD
北大核心
2019年第11期199-203,共5页
New Chemical Materials
基金
甘肃省教育科学“十三五”规划课题(GS[2019]GHB2091)
国家自然科学基金(21761030)
甘肃省高等学校科研项目(2017A-075)
