Issue 6, 2002

Preparation of chelating agents from sugarcane bagasse by microwave radiation as an alternative ecologically benign procedure

Abstract

Microwave radiation was utilized to produce neutral chelating agents (BCA) from sugarcane bagasse. BCA were prepared by reaction of urea with reactive sites present in bagasse such as hydroxyl and carboxylic groups. BCA prepared through microwave radiation had slightly lower yield (83%) compared to the conventional oven-drier process (87%). BCA demonstrated maximum chelating adsorption capacity (Qmax) of 1.2 mmol g−1 for Cu(II) at pH of 5.5 and 1.4 mmol g−1 for Hg(II) at pH 6.0. These results could be comparable with the Qmax of 1.46 mmol g−1 for Cu(II) and 2.4 mmol g−1 for Hg(II) obtained from Duolite GT-73, a commercial chelating resin, macroreticular with tiol (S–H) functional groups.

Graphical abstract: Preparation of chelating agents from sugarcane bagasse by microwave radiation as an alternative ecologically benign procedure

Article information

Article type
Paper
Submitted
08 Apr 2002
First published
08 Oct 2002

Green Chem., 2002,4, 555-557

Preparation of chelating agents from sugarcane bagasse by microwave radiation as an alternative ecologically benign procedure

U. S. Orlando, A. U. Baes, W. Nishijima and M. Okada, Green Chem., 2002, 4, 555 DOI: 10.1039/B203440A

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