Adsorption of organic phenols onto hexadecyltrimethylammonium-treated montmorillonite

Journal Article · Sun Dec 01 04:00:00 EST 1996 · Separation Science and Technology

DOI:https://doi.org/10.1080/01496399608000829· OSTI ID:494259

Kim, Young S; Song, Dong I; Jeon, Young W; Choi, Sang J ^[1]

---

1. Kyungpook National Univ., Taegu (Korea, Republic of)

Montmorillonite used as an adsorbent was organically modified by using a cationic surfactant, hexadecyltrimethylammonium (HDTMA), to enhance the removal capacity of organic phenol contaminants dissolved in an aqueous solution. This modification produces a change of the surface property of montmorillonite from hydrophilic to organophilic. The single- and multicomponent competitive adsorptions were performed in a batch reactor to investigate the removal of three toxic organic phenols, 2-chlorophenol, 3-cyanophenol, and 4-nitrophenol, on the modified HDTMA-montmorillonite. It was observed from the experimental results that the adsorption affinity for HDTMA-montmorillonite was 2-chlorophenol, 4-nitrophenol, 3-cyanophenol in decreasing order. Langmuir and the Redlich-Peterson models were used to analyze the single-component adsorption results, while the IAST and the LCM models predicted the multicomponent adsorption equilibria. These models yielded favorable representations of both individual and competitive adsorption behaviors.

• Sponsoring Organization: USDOE
• OSTI ID: 494259
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 20 Vol. 31; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ADSORPTION
AQUEOUS SOLUTIONS
MATHEMATICAL MODELS
MONTMORILLONITE
PHENOLS
SORPTIVE PROPERTIES
SURFACTANTS