Preparation of a hierarchical flower-like gamma -Al2O3C composite exhibiting enhanced adsorption performance for congo red by high temperature transformation of gamma -AlOOHC precursors

A hierarchical flower-like gamma -Al2O3C composite was synthesized via a hydrothermal method combined with a heat treatment process using glucose and Al nanopowders as reactants. Herein, glucose plays key roles in the formation of the flower-like structure and carbon shell. Due to the high specific...

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Bibliographic Details
Published inRSC advances Vol. 6; no. 1; pp. 61 - 64
Main Authors Fang, Beibei, Bao, Zepei, Lu, Lun, Zhao, Lijun, Wang, Huiyuan
Format Journal Article
LanguageEnglish
Published 01.12.2015
Subjects
Adsorption
Carbon
Dyes
Glucose
Materials selection
Precursors
Surface chemistry
Transformations
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Summary:A hierarchical flower-like gamma -Al2O3C composite was synthesized via a hydrothermal method combined with a heat treatment process using glucose and Al nanopowders as reactants. Herein, glucose plays key roles in the formation of the flower-like structure and carbon shell. Due to the high specific surface area of the flower-like gamma -Al2O3C composite (346.2 m2 g-1), its adsorption ability was investigated. The organic dye Congo Red (CR) was selected as a subject in the study. Over 90% of CR could be removed from aqueous solution within 5 min, and the final adsorption capacity reaches 244.5 mg g-1 which is much higher than most gamma -AlOOH and gamma -Al2O3 materials reported before, indicating it would be a promising material used in the water treatment industry.
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ISSN:2046-2069
DOI:10.1039/c5ra18339a