纳米银粉的一步还原法制备工艺研究  

Research on Preparation Technology of Silver Nanoparticals via One-step Reduction Method

作　　者：李成燕 魏家昌 陈悦 张瑷华 王君 LI Cheng-yan;WEI Jia-chang;CHEN Yue;ZHANG Ai-hua;WANG Jun(School of Chemistry and Chemical Engineering,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学化学化工学院,云南昆明650500

出　　处：《化工管理》2022年第10期142-144,共3页Chemical Engineering Management

基　　金：云南师范大学大学生科研训练基金项目资助(KX2020162);云南师范大学大学生创新创业训练计划项目(202010681055)。

摘　　要：以硝酸银为银源,乙二醇为还原剂,PVP为保护剂,采用一步还原法制备了球形纳米银粉,通过对反应温度、反应时间及保护剂用量等工艺参数的调整,考察了各工艺参数对银粉形貌与粒径的影响。确定了反应的最佳工艺条件为:反应温度165℃,反应时间60 min,PVP与AgNO_(3)质量比4∶1。在此条件下制备了均粒径为137 nm的球形纳米银粉。Silver nanoparticles were prepared by one-step reduction method with silver nitrate as silver source,ethylene glycol as reducing agent and PVP as protective agent.The effects of various process parameters on the morphology and particle size of silver nanoparticles were investigated by adjusting the reaction temperature,reaction time and protective agent dosage.The optimum reaction conditions were determined as follows:reaction temperature 165℃,reaction time 60 min,PVP and AgNO_(3) mass ratio 4:1.Under these conditions,silver nanoparticles with average particle size of 137 nm were prepared.

关 键 词：纳米银粉 球形 一步还原 

分 类 号：O614.122[理学—无机化学]