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Title: Polyethyleneimine modified bentonite for the adsorption of amino black 10B

Abstract

The modified bentonite with a graft amount of 30% was prepared by polyethylenimine reacting with the epoxy bonds on the molecular of (3-Glycidyloxypropyl) trimethoxysilane and being grafted on the bentonite to remove amino black10B. The effects of pH, time, temperature and concentration on the adsorption capacity were studied. As the pH value increases from 3 to 10, the adsorption capacity decreased from 264.5 to 140.4 mg/g. The adsorption process reached equilibrium at 90 min when pH=3. The adsorption kinetics indicates that the adsorption process was very fast and in accordance with the secondary adsorption kinetics. The data about thermodynamic equilibrium was consistent with the Langmuir model. The adsorption process mainly depended on electrostatic attraction and hydrogen bonding and the adsorption data of Bent-PGLYMO-PEI showed that the maximum adsorption capacity reached 327.7 mg/g. - Graphical abstract: Bent-PGLYMO-PEI has been synthesized and exhibited a high adsorption capacity on amino black 10B due to electrostatic interaction between polyethyleneimine and amino black 10B. Display Omitted - Highlights: • The composite material is covalently bonded and stable. • Each repeating unit of polyethyleneimine has a plurality of adsorption sites. • Bent-GLYMO-PEI has a faster adsorption rate and a higher adsorption capacity for amino black 10B.

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22742023
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 252; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ADSORPTION; BENTONITE; BONDING; BORON 10; CAPACITY; COMPOSITE MATERIALS; PH VALUE

Citation Formats

Du, Sen, Wang, Luyan, Xue, Ni, Pei, Meishan, Sui, Weiping, and Guo, Wenjuan. Polyethyleneimine modified bentonite for the adsorption of amino black 10B. United States: N. p., 2017. Web. doi:10.1016/J.JSSC.2017.04.034.
Du, Sen, Wang, Luyan, Xue, Ni, Pei, Meishan, Sui, Weiping, & Guo, Wenjuan. Polyethyleneimine modified bentonite for the adsorption of amino black 10B. United States. doi:10.1016/J.JSSC.2017.04.034.
Du, Sen, Wang, Luyan, Xue, Ni, Pei, Meishan, Sui, Weiping, and Guo, Wenjuan. Tue . "Polyethyleneimine modified bentonite for the adsorption of amino black 10B". United States. doi:10.1016/J.JSSC.2017.04.034.
@article{osti_22742023,
title = {Polyethyleneimine modified bentonite for the adsorption of amino black 10B},
author = {Du, Sen and Wang, Luyan and Xue, Ni and Pei, Meishan and Sui, Weiping and Guo, Wenjuan},
abstractNote = {The modified bentonite with a graft amount of 30% was prepared by polyethylenimine reacting with the epoxy bonds on the molecular of (3-Glycidyloxypropyl) trimethoxysilane and being grafted on the bentonite to remove amino black10B. The effects of pH, time, temperature and concentration on the adsorption capacity were studied. As the pH value increases from 3 to 10, the adsorption capacity decreased from 264.5 to 140.4 mg/g. The adsorption process reached equilibrium at 90 min when pH=3. The adsorption kinetics indicates that the adsorption process was very fast and in accordance with the secondary adsorption kinetics. The data about thermodynamic equilibrium was consistent with the Langmuir model. The adsorption process mainly depended on electrostatic attraction and hydrogen bonding and the adsorption data of Bent-PGLYMO-PEI showed that the maximum adsorption capacity reached 327.7 mg/g. - Graphical abstract: Bent-PGLYMO-PEI has been synthesized and exhibited a high adsorption capacity on amino black 10B due to electrostatic interaction between polyethyleneimine and amino black 10B. Display Omitted - Highlights: • The composite material is covalently bonded and stable. • Each repeating unit of polyethyleneimine has a plurality of adsorption sites. • Bent-GLYMO-PEI has a faster adsorption rate and a higher adsorption capacity for amino black 10B.},
doi = {10.1016/J.JSSC.2017.04.034},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 252,
place = {United States},
year = {2017},
month = {8}
}