Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder
Abstract The present study investigates activated teak leaf powder (Tectona grandis) as a biosorbent for the effective removal of Congo red (CR) dye from aqueous solution. Biosorbent was characterized via Fourier transform infrared spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller a...
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doaj-718c4d8219d249d7ace16bd129b15cb52020-11-25T01:54:55ZengSpringerOpenApplied Water Science2190-54872190-54952019-03-019311310.1007/s13201-019-0933-9Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powderVidyadhar V. Gedam0Pranay Raut1Anup Chahande2Pranav Pathak3Environmental Engineering and Management, National Institute of Industrial Engineering (NITIE)Priyadarshini Institute of Engineering and TechnologyPriyadarshini Institute of Engineering and TechnologyMIT School of Bioengineering Sciences & ResearchAbstract The present study investigates activated teak leaf powder (Tectona grandis) as a biosorbent for the effective removal of Congo red (CR) dye from aqueous solution. Biosorbent was characterized via Fourier transform infrared spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller and X-ray diffraction. The effect of different parameters, i.e., initial dye concentration, adsorbent dosage, contact time, pH and temperature, was studied in detail. The experimental data were interpreted and studied using Langmuir, Freundlich and Temkin isotherm, and Langmuir isotherm was observed to be best fit. The investigation shows the pseudo-second order is the prevailing kinetic mechanism during adsorption and the energy change (ΔG), enthalpy change (ΔH) and entropy change (ΔS) were − 5.101 kJ/mol, 246.792776 J/mol K and 69.6771398 kJ/mol, respectively. The results show that activated teak leaf powder can be a viable sorbent for the removal of CR dye from wastewater in a reasonable, economical and environmentally friendly way.http://link.springer.com/article/10.1007/s13201-019-0933-9Tectona GrandisCongo red (CR) dyeAdsorption isothermsKinetics modelsThermodynamic study |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vidyadhar V. Gedam Pranay Raut Anup Chahande Pranav Pathak |
spellingShingle |
Vidyadhar V. Gedam Pranay Raut Anup Chahande Pranav Pathak Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder Applied Water Science Tectona Grandis Congo red (CR) dye Adsorption isotherms Kinetics models Thermodynamic study |
author_facet |
Vidyadhar V. Gedam Pranay Raut Anup Chahande Pranav Pathak |
author_sort |
Vidyadhar V. Gedam |
title |
Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder |
title_short |
Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder |
title_full |
Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder |
title_fullStr |
Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder |
title_full_unstemmed |
Kinetic, thermodynamics and equilibrium studies on the removal of Congo red dye using activated teak leaf powder |
title_sort |
kinetic, thermodynamics and equilibrium studies on the removal of congo red dye using activated teak leaf powder |
publisher |
SpringerOpen |
series |
Applied Water Science |
issn |
2190-5487 2190-5495 |
publishDate |
2019-03-01 |
description |
Abstract The present study investigates activated teak leaf powder (Tectona grandis) as a biosorbent for the effective removal of Congo red (CR) dye from aqueous solution. Biosorbent was characterized via Fourier transform infrared spectroscopy, scanning electron microscopy, Brunauer–Emmett–Teller and X-ray diffraction. The effect of different parameters, i.e., initial dye concentration, adsorbent dosage, contact time, pH and temperature, was studied in detail. The experimental data were interpreted and studied using Langmuir, Freundlich and Temkin isotherm, and Langmuir isotherm was observed to be best fit. The investigation shows the pseudo-second order is the prevailing kinetic mechanism during adsorption and the energy change (ΔG), enthalpy change (ΔH) and entropy change (ΔS) were − 5.101 kJ/mol, 246.792776 J/mol K and 69.6771398 kJ/mol, respectively. The results show that activated teak leaf powder can be a viable sorbent for the removal of CR dye from wastewater in a reasonable, economical and environmentally friendly way. |
topic |
Tectona Grandis Congo red (CR) dye Adsorption isotherms Kinetics models Thermodynamic study |
url |
http://link.springer.com/article/10.1007/s13201-019-0933-9 |
work_keys_str_mv |
AT vidyadharvgedam kineticthermodynamicsandequilibriumstudiesontheremovalofcongoreddyeusingactivatedteakleafpowder AT pranayraut kineticthermodynamicsandequilibriumstudiesontheremovalofcongoreddyeusingactivatedteakleafpowder AT anupchahande kineticthermodynamicsandequilibriumstudiesontheremovalofcongoreddyeusingactivatedteakleafpowder AT pranavpathak kineticthermodynamicsandequilibriumstudiesontheremovalofcongoreddyeusingactivatedteakleafpowder |
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1724986255372976128 |