化工技术与开发
化工技術與開髮
화공기술여개발
TECHNOLOGY & DVELOPMENT OF CHEMICAL INDUSTRY
2014年
6期
25-27,44
,共4页
王春霞%李英琳%徐磊%周少波
王春霞%李英琳%徐磊%週少波
왕춘하%리영림%서뢰%주소파
纳米银粒子%液相化学还原%PVP%陈化时间
納米銀粒子%液相化學還原%PVP%陳化時間
납미은입자%액상화학환원%PVP%진화시간
nano-sized silver particle%liquid chemical reduction%PVP%aging time
采用液相还原法,以PVP为分散剂,甲酸铵为还原剂,在30℃ AgNO3溶液高速搅拌下制备得到纳米银颗粒。采用X射线衍射(XRD)、透射电子显微镜(TEM)和紫外-可见光吸收光谱(UV-Vis)对所制备样品进行表征。当PVP 与AgNO3的质量比为2.2∶1,陈化时间24 h,得到立方块和六棱柱的银混合颗粒。
採用液相還原法,以PVP為分散劑,甲痠銨為還原劑,在30℃ AgNO3溶液高速攪拌下製備得到納米銀顆粒。採用X射線衍射(XRD)、透射電子顯微鏡(TEM)和紫外-可見光吸收光譜(UV-Vis)對所製備樣品進行錶徵。噹PVP 與AgNO3的質量比為2.2∶1,陳化時間24 h,得到立方塊和六稜柱的銀混閤顆粒。
채용액상환원법,이PVP위분산제,갑산안위환원제,재30℃ AgNO3용액고속교반하제비득도납미은과립。채용X사선연사(XRD)、투사전자현미경(TEM)화자외-가견광흡수광보(UV-Vis)대소제비양품진행표정。당PVP 여AgNO3적질량비위2.2∶1,진화시간24 h,득도립방괴화륙릉주적은혼합과립。
PVP as dispersant, ammonium formate as reductant, AgNO3 solution as material, nano-sized silver particles was prepared by liquid reduction method under 30℃ and velocity mixing. The prepared sample was characterized by XRD, TEM and UV-Vis. Cube and six prism silver hybrid particles were got when the ratio of PVP to AgNO3 was 2.2:1 and aging time was 24h.