The Preparation and Use of a Mesoporous Silicate Material for the Removal of Tetramethyl Ammonium Hydroxide (TMAH) from Aqueous Solution

Kieran Hodnett, Tom O'Dwyer, Brian P. Kelleher, Aidan M. Doyle

Research output: Contribution to journalArticlepeer-review

Abstract

A cubic mesoporous silicate (CMS) was prepared, characterised, and assessed as an adsorbent for tetramethyl ammonium hydroxide (TMAH) from aqueous solution. The adsorption process was studied as a function of temperature and time. Sorption closely followed the Langmuir model. The adsorption of TMAH on CMS was endothermic and kinetic studies suggest that the overall rate of adsorption was pseudo-second-order. Pore diffusion effects contribute to limiting the overall rate of adsorption while at lower initial TMAH concentrations, film diffusion becomes more important. Desorption studies were carried out using water and methanol. Methanol was the superior disorbing agent.

Original languageEnglish (Ireland)
Pages (from-to)1216-1222
Number of pages7
JournalJournal of Chemical Technology and Biotechnology
Volume76
Issue number12
DOIs
Publication statusPublished - 2001

Keywords

  • Adsorption
  • Mesoporous silicates
  • Tetramethyl ammonium hydroxide
  • Wastewater treatment

Fingerprint

Dive into the research topics of 'The Preparation and Use of a Mesoporous Silicate Material for the Removal of Tetramethyl Ammonium Hydroxide (TMAH) from Aqueous Solution'. Together they form a unique fingerprint.

Cite this