Adsorption of indigo carmine on Pistia stratiotes dry biomass chemically modified

被引：33
作者：
Ferreira, Rachel M. [1 ,2 ]
de Oliveira, Nazare M. [1 ]
Lima, Lorenna L. S. [1 ]
Campista, Ana Laura D. M. [1 ]
Stapelfeldt, Danielle M. A. [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Dept Chem, Aluisio da Silva Gomes St 50, BR-27930560 Macae, RJ, Brazil
[2] Natl Publ Hlth Sch Sergio Arouca Fiocruz RJ, Leopoldo Bulhoes 1480, BR-21041210 Manguinho, RJ, Brazil
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2019年 / 26卷 / 28期
关键词：
Indigo carmine; Biosorbent; Pistia stratiotes; RICE HUSK ASH; AQUEOUS-SOLUTION; TERM TOXICITY; WASTE-WATER; REMOVAL; DYE; BIOSORPTION; EQUILIBRIUM; ADSORBENT; KINETICS;
D O I：
10.1007/s11356-018-3752-x
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Pistia stratiotes is a common aquatic plant of the northern region of the state of Rio de Janeiro, and its use as adsorbent material was studied in the present work. The preparation process included washing, drying, grinding, and acid activation. The sorption potential for removal of the indigo carmine dye from aqueous solutions was tested under various conditions, such as initial concentration, contact time, and temperature. The tests showed that the obtained biosorbent showed good performance for dye removal with a maximum capacity of 41.2 mg/g. The kinetic studies revealed that the pseudo-second-order equation provided the best fit of the experimental data. The Freundlich isotherm provided the best fit of the experimental sorption data for the system under study. The results obtained show that Pistia stratiotes has great potential to be used as biosorbent for the removal of dyes from aqueous solutions.
引用
收藏
页码：28614 / 28621
页数：8
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