The Effect of Ionic Charge on the Adsorption of Organic Dyes onto Titanate Nanotubes

被引：60

作者：

Bavykin, Dmitry V. ^{[1
]}

Redmond, Katherine E. ^{[1
]}

Nias, Benjamin P. ^{[1
]}

Kulak, Alexander N. ^{[1
]}

Walsh, Frank C. ^{[1
]}

机构：

[1] Univ Southampton, Electrochem Engn Lab, Energy Technol Res Grp, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

来源：

AUSTRALIAN JOURNAL OF CHEMISTRY | 2010年 / 63卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

PHOTOCATALYTIC ACTIVITY; TITANIUM-DIOXIDE; TIO2; FABRICATION; HYDROGEN; OXIDE; INTERCALATION; EXCHANGE; LITHIUM; STORAGE;

D O I：

10.1071/CH09326

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The adsorption of dye molecules from aqueous solution onto the surface of titanate nanotubes (which have been synthesized via an alkaline hydrothermal treatment) has been studied. The ionic charge on the dye molecules was found to affect their ability to adsorb onto the titanate nanotube surface. In the case of (cationic) methylene blue, the adsorption was preferable on the negatively charged surface of titanate nanotubes rather than on positively charged P25 TiO2 nanoparticles. In the case of (anionic) Eriochrome Black T dye, the opposite trend was found. Herein, the dynamics of dye adsorption and the effect of pH on the adsorption capacity are considered.

引用

页码：270 / 275

页数：6

共 43 条

[21] CHARACTERIZATION OF PHYSICAL ADSORPTION SYSTEMS .3. THE SEPARATE EFFECTS OF PORE SIZE AND SURFACE ACIDITY UPON THE ADSORBENT CAPACITIES OF ACTIVATED CARBONS [J].