小型金纳米棒的制备  

Preparation of Small Gold Nanorods

作　　者：胡青 吴春芳 张凯锋[2] 潘浩 李坤[2] HU Qing;WU Chunfang;ZHANG Kaifeng;PAN Hao;LI Kun(School of Optoelectronic Engineering,Xi’an Technological University,Xi'an 710021,China;Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institutute of Physics,Lanzhou 730000,China)

机构地区：[1]西安工业大学光电工程学院,西安710021 [2]兰州空间技术物理研究所真空技术与物理重点实验室,兰州730000

出　　处：《材料研究学报》2022年第7期519-526,共8页Chinese Journal of Materials Research

基　　金：装备预研重点实验室基金(6142207190407);陕西省教育厅科研计划(21JY018)。

摘　　要：用种子生长法合成小型金纳米棒,改变合成参数可调控其形貌和性能。使用紫外-可见-近红外分光光度计和透射电子显微镜(TEM)测试和观察了金纳米棒的消光特性和形貌,研究了AgNO_(3)、十六烷基三甲基溴化铵(CTAB)和籽晶的用量对金纳米棒的形貌和性能的影响。结果表明:在不同条件下制备的金纳米棒具有良好的重现性。在(0.01 mol/L) AgNO_(3)用量为0.035 mL、(0.1 mol/L) CTAB用量为11 mL、籽晶用量为1.1 mL的最佳条件下合成的金纳米棒,其长径比约为3.8,平均长度约为34 nm,形貌均匀性和分散性良好。这种小型金纳米棒可用于检测残留物福美双(Thiram)。Small gold nanorods were synthesized by seed growth method. The morphology and properties of the nanorods could be controlled by changing the synthesis parameters. The extinction characteristics and morphology of gold nanorods were measured and observed by uV-vis-nIR spectrophotometer and transmission electron microscope(TEM). The effects of the amount of AgNO_(3), cetyltrimethyl ammonium bromide(CTAB) and seed crystal on the morphology and properties of gold nanorods were investigated. The results show that the gold nanorods prepared under different conditions have good reproducibility. The gold nanorods synthesized under the optimum conditions of 0.035 m L of(0.01 mol/L)AgNO_(3), 11 mL of(0.1 mol/L) CTAB and 1.1 mL of seed crystal, have an aspect ratio of about 3.8, an average length of about 34 nm, and good morphology uniformity and dispersion. The small gold nanorods could be used to detect a residue called Thiram.

关 键 词：金属材料 金纳米棒 种子生长法 长径比 福美双 

分 类 号：TB31[一般工业技术—材料科学与工程]