Competitive adsorption of ternary dye mixture using pine cone powder modified with β-cyclodextrin
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作者:
Debnath, Sushanta
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Univ Johannesburg, Dept Appl Chem, Johannesburg, South Africa
Saha Inst Nucl Phys, C&MB Div, Kolkata, IndiaUniv Johannesburg, Dept Appl Chem, Johannesburg, South Africa
Debnath, Sushanta
[1
,2
]
Ballav, Niladri
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Univ Johannesburg, Dept Appl Chem, Johannesburg, South AfricaUniv Johannesburg, Dept Appl Chem, Johannesburg, South Africa
Ballav, Niladri
[1
]
Maity, Arjun
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Univ Johannesburg, Dept Appl Chem, Johannesburg, South Africa
CSIR, Natl Ctr Nano structured Mat, Pretoria, South AfricaUniv Johannesburg, Dept Appl Chem, Johannesburg, South Africa
Maity, Arjun
[1
,3
]
Pillay, Kriveshini
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Univ Johannesburg, Dept Appl Chem, Johannesburg, South AfricaUniv Johannesburg, Dept Appl Chem, Johannesburg, South Africa
Pillay, Kriveshini
[1
]
机构:
[1] Univ Johannesburg, Dept Appl Chem, Johannesburg, South Africa
[2] Saha Inst Nucl Phys, C&MB Div, Kolkata, India
[3] CSIR, Natl Ctr Nano structured Mat, Pretoria, South Africa
The adsorption characteristics for the uptake of a ternary dye mixture safranine 0, brilliant green and methylene blue (SO, BG and MB) by pine cone modified with beta-cyclodextrin (CD) were investigated. The adsorption process primarily followed a pseudo - second order model and the rate of adsorption was inversely proportional to the initial dye concentration. The adsorption was also a multi-stage process which was limited by intraparticle diffusion. The adsorption predominately followed the Langmuir isotherm and was controlled by physisorption and electrostatic interactions. The adsorption was spontaneous and endothermic in nature. The order of performance of adsorption of the dyes was BG>SO> MB at all temperatures studied. The adsorption of BG was therefore highly favoured at all temperatures. (C) 2016 Elsevier B.V. All rights reserved.
机构:
Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Queens Univ Belfast, Sch Chem & Chem Engn, Belfast, Antrim, North IrelandHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Chan, L. S.
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Cheung, W. H.
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Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Cheung, W. H.
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Allen, S. J.
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McKay, G.
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Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
机构:
Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Queens Univ Belfast, Sch Chem & Chem Engn, Belfast, Antrim, North IrelandHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Chan, L. S.
;
Cheung, W. H.
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Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China
Cheung, W. H.
;
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机构:
Allen, S. J.
;
McKay, G.
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h-index: 0
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Hong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem & Biomol Engn, Hong Kong, Hong Kong, Peoples R China