Exhausted Yerba Mate Leaves (Ilex paraguariensis) as Biosorbent for the Removal of Metals from Aqueous Solutions

被引：16
|
作者：
Copello, Guillermo J. [1 ,2 ]
Garibotti, Rodolfo E. [1 ]
Varela, Florencia [1 ]
Tuttolomondo, Maria V. [1 ]
Diaz, Luis E. [1 ,2 ]
机构：
[1] Univ Buenos Aires, Fac Farm & Bioquim, Catedra Quim Analit Instrumental, RA-1113 Buenos Aires, DF, Argentina
[2] IQUIMEFA UBA CONICET, Buenos Aires, DF, Argentina
来源：
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2011年 / 22卷 / 04期
关键词：
yerba mate; lead; chromium; metal removal; biosorbent; HEAVY-METALS; ADSORPTION; IONS; BIOSORPTION; KINETICS; THERMODYNAMICS; POLYPHENOLS; ADSORBENT; ISOTHERM; CR(III);
D O I：
10.1590/S0103-50532011000400024
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Yerba mate is the most popular tea-like beverage of South America. Consequently, there is a huge generation of residues of exhausted yerba mate and these may be used for removal of metals. The capability of exhausted yerba mate leaves in the removal of metals was evaluated in this study. The greatest adsorption was found to be at pHs below 5 and the adsorption capacity was 12.28, 11.77 and 8.80 mg g(-1) for Pb(II), Cr(III) and Cr(VI), respectively.
引用
收藏
页码：790 / 795
页数：6
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