Graphene oxide adsorption enhanced by in situ reduction with sodium hydrosulfite to remove acridine orange from aqueous solution

JOURNAL OF HAZARDOUS MATERIALS

卷:203

Article

Sun, Ling¹  Yu, Hongwen¹  Fugetsu, Bunshi¹ 

[1] Hokkaido Univ, Lab Environm Remediat, Grad Sch Environm Sci, Sapporo, Hokkaido 0600810, Japan

关键词: Graphene oxide;    Sodium hydrosulfite;    Acridine orange;    In situ reduction;    Hydrogen bonding interaction;   

DOI  :  10.1016/j.jhazmat.2011.11.097

来源: Elsevier

【 摘 要 】

Graphene oxide (GO) is a highly effective adsorbent, and its absorbing capability is further enhanced through its in situ reduction with sodium hydrosulfite as the reductant. Acridine orange is the selected target to eliminate with GO as the adsorbent. Under identical conditions. GO without the in situ reduction showed a maximum adsorption capacity of 1.4 g g(-1), and GO with the in situ reduction provided a maximum adsorption capacity of 3.3 g g(-1). Sodium hydrosulfite converts carbonyl groups on GO into hydroxyl groups, which function as the key sites for the adsorption enhancement. (C) 2011 Elsevier B.V. All rights reserved.

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