Highly ordered selective adsorption of methyl orange on heterogeneous surfaces in aqueous solutions

Xuefeng Zhou, Yunzhu Qian, Yang Bai, Xin Feng, Ning Gu, Xiaohua Lu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of chemical heterogeneity on the adsorption of Methyl Orange (MO) in aqueous solutions was investigated by atomic force microscopy (AFM). On hydrophilic mica, a small number of disordered islands of Methyl Orange were formed. However, after deposition of self-assembled monolayers (SAMs) of octadecyltrichlorosilane (OTS) on mica, MO mole-cules adsorbed extensively and selectively on the hydrophobic OTS SAMs. Most importantly, the MO molecules on hydropho-bic domains were highly ordered and almost perpendicular to the OTS surface.

Original languageEnglish
Pages (from-to)1142-1143
Number of pages2
JournalChemistry Letters
Volume38
Issue number12
DOIs
Publication statusPublished - 28 Dec 2009

Fingerprint Dive into the research topics of 'Highly ordered selective adsorption of methyl orange on heterogeneous surfaces in aqueous solutions'. Together they form a unique fingerprint.

Cite this