本文選題：無種子生長法　切入點：小尺寸　出處：《分析化學(xué)》2017年10期 　論文類型：期刊論文

【摘要】：通過研究十六烷基三甲基溴化銨、抗壞血酸、NaBH_4和AgNO_3的用量,以及攪拌時間、反應(yīng)時間對無種子生長法制備金納米棒的影響,篩選出了最佳制備條件,以及各成分對金納米棒生長過程中的作用。采用可見吸收光譜和透射電鏡圖對不同條件下所制備出的金納米棒進行了表征。在室溫為28℃,CTAB濃度為0.1 mol/L、AgNO_3濃度為96μmol/L、AA濃度為0.97 mmol/L、NaBH_4濃度為1.5μmol/L,攪拌25 s等最佳條件下,只需反應(yīng)6 h就能夠成功制備出長徑比為5且形貌均勻、分散性和穩(wěn)定性良好、軸寬較小的金納米棒,且有望應(yīng)用于水環(huán)境中Hg~(2+)的檢測。
[Abstract]:The effects of the amount of cetyltrimethylammonium bromide, ascorbic acid NaBH4 and AgNO_3, agitation time and reaction time on the preparation of gold nanorods by seedless growth method were studied. The gold nanorods prepared under different conditions were characterized by visible absorption spectra and transmission electron microscopy. The concentration of CTAB was 0.1 mol / L Agno _ 3 and 96 渭 mol 路L ~ (-1) AA was obtained at room temperature at 28 鈩，

本文編號：1639790