Cellulose Nanocrystal-Mediated Synthesis of Silver Nanoparticles: Role of Sulfate Groups in Nucleation Phenomena

被引：134

作者：

Lokanathan, Arcot R. ^{[1
]}

Uddin, Khan Mohammad Ahsan ^{[1
]}

Rojas, Orlando J. ^{[1
,2
,3
]}

Laine, Janne ^{[1
]}

机构：

[1] Aalto Univ, Dept Forest Prod Technol, FIN-00076 Espoo, Finland

[2] N Carolina State Univ, Dept Forest Biomat, Raleigh, NC 27695 USA

[3] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA

来源：

BIOMACROMOLECULES | 2014年 / 15卷 / 01期

基金：

芬兰科学院;

关键词：

GREEN SYNTHESIS; STABILIZATION; ADSORPTION; GOLD;

D O I：

10.1021/bm401613h

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Developing sustainable chemical methods to synthesize silver nanoparticles has drawn significant research interest. Due to their unique and well-defined physical-chemical properties, cellulose nanocrystals (CNCs) have become one of the most promising renewable nanomaterials. Here we use CNC to mediate silver nanoparticle synthesis and elucidate the effect of CNC surface chemistry (as defined by sulfate groups) in nanoparticle formation and nucleation in the presence of borohydride reduction. Pristine CNCs produced by sulfuric acid hydrolysis and partially desulfated CNCs mediated the formation of silver nanoparticles of different sizes (and size distribution) following different rates of formation, as determined by transmission electron microscopy (TEM) and UV-vis spectroscopy. The results shed light on methods to stabilize silver nanoparticles, control their nucleation, and highlight the potential of CNCs in metal nanoparticle synthesis.

引用

页码：373 / 379

页数：7

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