Preparation of Au nanowires based on synergistic action of Pichia pastoris cells and surfactant

JING Xiaolian; HUANG Dengpo; HUANG Jiale; SUN Daohua; LI Qingbiao

doi:10.11949/j.issn.0438-1157.20150925

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Preparation of Au nanowires based on synergistic action of Pichia pastoris cells and surfactant

更新时间：2025-12-10

- Preparation of Au nanowires based on synergistic action of Pichia pastoris cells and surfactant
- CIESC Journal Issue 9, Pages: 3661-3668(2015)
- 作者机构：
  
  1. 厦门大学化学化工学院化学工程与生物工程系, 醇醚酯化工清洁生产国家工程实验室,福建,厦门,361005
  2. 厦门大学环境与生态学院,福建,厦门,361005
  3. 泉州师范学院化学与生命科学学院,福建,泉州,362000
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150925
  CLC： Q420.6TQ426.6
- Online First：05 September 2015，
  
  Published：05 September 2015
- 稿件说明：
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JING Xiaolian, HUANG Dengpo, HUANG Jiale, et al. Preparation of Au nanowires based on synergistic action of Pichia pastoris cells and surfactant[J]. CIESC Journal, 2015, (9): 3661-3668.
DOI：

JING Xiaolian, HUANG Dengpo, HUANG Jiale, et al. Preparation of Au nanowires based on synergistic action of Pichia pastoris cells and surfactant[J]. CIESC Journal, 2015, (9): 3661-3668. DOI： 10.11949/j.issn.0438-1157.20150925.

摘要

在毕赤酵母-十六烷基三甲基溴化铵(CTAB)的协同作用下利用抗坏血酸(AA)还原氯金酸(HAuCl4)制备Au纳米线

采用SEM、TEM、HRTEM及SAED等手段对Au产物进行表征

结果表明产物为带有分支结构的Au纳米线

纳米线在分叉处的晶型是连续的

具有多晶结构的特征。研究发现

菌体-HAuCl4的相互作用对于后续纳米线的生成过程至关重要

部分Au(Ⅲ)可吸附在菌体表面并被还原为很小的Au(0)

在AA加入后纳米线的生成过程中起到了晶种的作用。菌体-HAuCl4作用时间过长会导致菌体表面生成的Au(0)趋于稳定

不利于进一步生长为Au纳米线。菌体-表面活性剂的协同作用导致分支结构的多晶Au纳米线的生成。

Abstract

Au nanowires (AuNWs) were obtained by the reduction of HAuCl4 with ascorbic acid (AA) under the synergistic action between microorganism (Pichia pastoris cells

PPCs) and hexadecyltrimethylammonium bromides (CTAB). SEM

TEM

HRTEM and SEAD were used to characterize the shape and structure feature of the Au nanoproducts. The results showed the AuNWs were hierarchically branched polycrystal and the interfaces of the branched positions were continuous in lattice. The interaction process between the microorganism and CTAB was researched and it was found that Au(0) could be formed on the PPCs surface

which acted as the seeds for the formation of AuNWs after AA addtion. Without the interaction process between the microorganism and CTAB

the Au nanoparticles instead of nanowires were acquired. Too long time adsorption between PPCs and HAuCl4 led to stable Au(0) on the microorganism surface

which was also unfavorable for the subsequent growth of AuNWs. The synergistic action between microorganism and CTAB resulted in the formation of AuNWs with hierarchically branched polycrystalline structure.

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