Characterization and application of Ti-containing mesoporous silica for dye removal with synergistic effect of coupled adsorption and photocatalytic oxidation

Chih Hung Huang, Kai Ping Chang, Hong De Ou, Yu Chun Chiang, E. E. Chang, Chu Fang Wang

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Highly ordered mesoporous silica, Santa Barbara Amorphous-15 (SBA-15), and titanium-substituted mesoporous silica (TiSBA-15) materials were successfully synthesized, characterized, and evaluated. The textual and structural properties of the prepared materials with various titanium contents were characterized by inductively coupled plasma-mass spectrometer (ICP-MS), powder X-ray diffraction (XRD) patterns, nitrogen physisorption isotherms, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). A limited content of titanium could be effectively substituted into the framework of SBA-15 without provoking structure change. The adsorptive performance was examined by methylene blue (MB) adsorbed on prepared materials. The isotherm models were analyzed to describe the adsorption behavior of prepared materials. The adsorption isotherms were well-fitted with Langmuir and Freundlich models in the simulation of the adsorption behavior of dyes. The SBA-15 and TiSBA-15 materials were found to be effective adsorbents for MB from aqueous solutions. The photodegradation of MB and total organic carbon (TOC) analysis on solid composites were used to evaluate the catalytical performance of Ti-containing mesoporous silica. The synergistic effect of adsorptive and photocatalytical ability of prepared TiSBA-15 was identified. The regeneration and cyclic performance were also proved. These results revealed that TiSBA-15 could be one effective alternative material for dye removal.

Original languageEnglish
Pages (from-to)1174-1182
Number of pages9
JournalJournal of Hazardous Materials
Volume186
Issue number2-3
DOIs
Publication statusPublished - Feb 28 2011

Fingerprint

Methylene Blue
Titanium
Silicon Dioxide
Adsorption
dye
Coloring Agents
Dyes
silica
Silica
adsorption
oxidation
Oxidation
titanium
isotherm
Photolysis
Transmission Electron Microscopy
X-Ray Diffraction
Electron Scanning Microscopy
Powders
Isotherms

Keywords

  • Adsorption
  • Dye
  • Mesoporous
  • Photocatalytic oxidation
  • TiSBA-15

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Characterization and application of Ti-containing mesoporous silica for dye removal with synergistic effect of coupled adsorption and photocatalytic oxidation. / Huang, Chih Hung; Chang, Kai Ping; Ou, Hong De; Chiang, Yu Chun; Chang, E. E.; Wang, Chu Fang.

In: Journal of Hazardous Materials, Vol. 186, No. 2-3, 28.02.2011, p. 1174-1182.

Research output: Contribution to journalArticle

Huang, Chih Hung ; Chang, Kai Ping ; Ou, Hong De ; Chiang, Yu Chun ; Chang, E. E. ; Wang, Chu Fang. / Characterization and application of Ti-containing mesoporous silica for dye removal with synergistic effect of coupled adsorption and photocatalytic oxidation. In: Journal of Hazardous Materials. 2011 ; Vol. 186, No. 2-3. pp. 1174-1182.
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