贵金属
貴金屬
귀금속
PRECIOUS METALS
2014年
4期
30-34
,共5页
王春霞%李英琳%徐磊
王春霞%李英琳%徐磊
왕춘하%리영림%서뢰
纳米化学%纳米银%化学还原法%PVP%陈化时间
納米化學%納米銀%化學還原法%PVP%陳化時間
납미화학%납미은%화학환원법%PVP%진화시간
nanochemistry%nano-particles%chemical reduction method%PVP%aging time
以PVP为表面活性剂，甲酸铵为还原剂，采用液相还原法制备了纳米银颗粒。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。结果显示：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。
以PVP為錶麵活性劑，甲痠銨為還原劑，採用液相還原法製備瞭納米銀顆粒。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。結果顯示：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。
이PVP위표면활성제，갑산안위환원제，채용액상환원법제비료납미은과립。채용X사선연사(XRD)、투사전자현미경(TEM)화자외-가견광흡수광보(UV-Vis)대소제비양품진행표정。결과현시：당PVP여AgNO3적질량비위2.2：1，진화시간24 h，득도립방괴화륙릉주적은혼합과립。
Nano-silver particles were prepared by using polyvinyl pyrolidone as the dispersing agent and ammonium as the reducing agent. The resulting specimens were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV-Vis adsorption spectrum. The result revealed that a mixture of cube and hexagonal prisms of nano-silver particles was obtained when the mass ratio of PVP to AgNO3 was 2.2:1 and the aging time was 24 hours.
