元素硫对糊精的吸附特性

Characteristics of dextrin adsorption by elemental sulfur.

作者信息

Brossard Sylwia K, Du Hao, Miller Jan D

机构信息

Department of Metallurgical Engineering, 135 S. 1460 E., 412 William C. Browning Building, University of Utah, Salt Lake City, UT 84112, USA.

出版信息

J Colloid Interface Sci. 2008 Jan 1;317(1):18-25. doi: 10.1016/j.jcis.2007.09.003. Epub 2007 Sep 7.

DOI:10.1016/j.jcis.2007.09.003

PMID:17935730

Abstract

Characteristics of dextrin adsorption by elemental sulfur were investigated by the means of diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy, total organic carbon (TOC) measurements, BET measurements as well as molecular dynamics simulation (MDS). Adsorption isotherms for dextrin adsorption by sulfur were compared to isotherms for dextrin adsorption by other hydrophilic and hydrophobic surfaces taken from the literature. The three-dimensional structure of dextrin was studied in detail and possible mechanisms of adsorption are discussed. Additionally, molecular dynamics simulations provided further insight into the mechanism of dextrin adsorption by elemental sulfur.

摘要

通过漫反射红外傅里叶变换（DRIFT）光谱、总有机碳（TOC）测量、BET测量以及分子动力学模拟（MDS）等手段，研究了元素硫对糊精的吸附特性。将硫对糊精的吸附等温线与文献中其他亲水和疏水表面对糊精的吸附等温线进行了比较。详细研究了糊精的三维结构，并讨论了可能的吸附机制。此外，分子动力学模拟进一步深入了解了元素硫对糊精的吸附机制。