Adsorption of aniline onto hexagonal mesoporous silicate monoliths (HOM-2)

Sherif A. El-Safty, Fujio Mizukami, Takaaki Hanaoka

研究成果査読

9 被引用数 (Scopus)

抄録

Hexagonally highly ordered monolithic mesoporous silica and aluminosilicate composites (HOM-2 and Al/HOM-2, respectively) were used as adsorbents for removal of aniline in aqueous solution. These HOM-adsorbents were fabricated by using a simple, reproducible and direct synthesis strategy in which instantly preformed liquid crystalline phase of Brij 56 (C16EO10) surfactant was used as templates. Extensive characterisation studies showed that Al/HOM-2 composites revealed higher surface area, smaller pore sizes and thicker pore wall than those of unloaded-HOM-2 monoliths, indicating that Al might be impregnated into the inner pores and the wall frameworks of HOM-2 silica monoliths. The adsorption experiments of aniline were investigated by using batch techniques. The results obtained showed that the aniline molecule strongly adsorbed onto the aluminosilicate mesostructures. In addition, the HOM-adsorbent exhibited high efficiency for aniline removal after several uses without loss of structural ordering, permitting the reusability for further selective separation of organic molecules from water.

本文言語English
ページ(範囲)97-110
ページ数14
ジャーナルInternational Journal of Environment and Pollution
34
1-4
出版ステータスPublished - 2008 10
外部発表はい

ASJC Scopus subject areas

  • 汚染
  • 廃棄物管理と処理
  • 管理、モニタリング、政策と法律

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