Competitive adsorption of ternary dye mixture using pine cone powder modified with β-cyclodextrin
| Autor: | Kriveshini Pillay, Niladri Ballav, Arjun Maity, Sushanta Debnath |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Diffusion
Inorganic chemistry 02 engineering and technology 010501 environmental sciences 01 natural sciences Endothermic process chemistry.chemical_compound symbols.namesake Adsorption Physisorption Materials Chemistry Organic chemistry Physical and Theoretical Chemistry Spectroscopy 0105 earth and related environmental sciences Langmuir adsorption model 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials chemistry Brilliant green symbols 0210 nano-technology Ternary operation Methylene blue |
| Zdroj: | Journal of Molecular Liquids. 225:679-688 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2016.10.109 |
| Popis: | The adsorption characteristics for the uptake of a ternary dye mixture safranine O, brilliant green and methylene blue (SO, BG and MB) by pine cone modified with β-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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect