Preparation and characterization of activated carbon produced from coffee waste

被引：45

作者：

Brum, Sarah Silva ^{[1
]}

Bianchi, Maria Lucia ^{[1
]}

de Silva, Vanesia Liane ^{[1
]}

Goncalves, Maraisa ^{[1
]}

Guerreiro, Mario Cesar ^{[1
]}

Alves de Oliveira, Luiz Carlos ^{[1
]}

机构：

[1] Univ Fed Lavras, Dept Quim, BR-37200000 Lavras, MG, Brazil

来源：

QUIMICA NOVA | 2008年 / 31卷 / 05期

关键词：

activated carbons; coffee waste; adsorption;

D O I：

10.1590/S0100-40422008000500019

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Coffee fruit processing is one of the most polluting activities in agriculture due to the large amount of waste generated in the process. In this work, coffee parchment was employed as precursor for the production of carbons activated with ZnCl2 (CAP). The material was characterized unsing N-2 adsorption/desorption at 77 K. Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The material showed a surface area of 521.6 m(2).g(-1) and microporous structure. CAP was applied as adsorbent for the removal of methylene blue dye in aqueous medium. The adsorption capacity was found to be about 188.7 mg g(-1).

引用

页码：1048 / 1052

页数：5

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