Synthesis of poly(methacrylic acid)-functionalized SBA-15 and its adsorption of phenol in aqueous media

Vien Vo, Hee Jin Kim, Youngmee Kim, Sung Jin Kim

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8 Scopus citations


Poly(methacrylic acid)-functionalized SBA-15 silicas (denoted as P-x-PMA/SBA-15 where x is molar ratio of TSPM/(TEOS+TSPM) in percentage in the initial mixture) were synthesized by co-condensation of tetraethoxysilane and varying contents of 3-(trimethoxysilyl)propyl methacrylate in acidic medium with the block copolymer Pluronic 123 as a structure directing agent and then polymerization by methacrylic acid in the presence of ammonium persulfate as an initiator. The functionalized materials were characterized by PXRD, TEM, SEM, IR, and N2 adsorption-desorption at 77 K. The investigation of phenol adsorption in aqueous solution on the materials showed that the poly(methacrylic acid)-functionalized mesoporous silicas possessstrong adsorption ability for phenol with interaction of various kinds of hydrogen bonds. The adsorption data were fitted to Langmuir isotherms and the maximum adsorption capacity of the three functionalized materialsP-5-PMA/SBA-15, P-10-PMA/SBA-15, and P-15-PMA/SBA-15 to be 129.37 mg/g, 187.97 mg/g, and 78.43 mg/g, respectively, were obtained. The effect of the pH on phenol adsorption was studied.

Original languageEnglish
Pages (from-to)3570-3576
Number of pages7
JournalBulletin of the Korean Chemical Society
Issue number12
StatePublished - 20 Dec 2013


  • Functionalization
  • Mesoporous materials
  • Methacrylate
  • Phenol adsorption


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