Volume 17, Issue 4 (3-2025)
ijhe 2025, 17(4): 845-870 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Mirbolooki H, Mahdavi S, Solgi E, Razdar B, Zarabi M, Akhzari D. Equilibrium and kinetic investigation of solophenyl dye removal from aqueous solution using cellulose adsorbents. ijhe 2025; 17 (4) :845-870
URL: http://ijhe.tums.ac.ir/article-1-6988-en.html
URL: http://ijhe.tums.ac.ir/article-1-6988-en.html
Hanieh Mirbolooki1 
, Shahriar Mahdavi * 2, Eisa Solgi3 , Babak Razdar4 , Mahboubeh Zarabi5 , Davoud Akhzari6
, Shahriar Mahdavi * 2, Eisa Solgi3 , Babak Razdar4 , Mahboubeh Zarabi5 , Davoud Akhzari6
1- Department of Environmental Science, Research Institute of Grape and Raisin (RIGR), Malayer University, Malayer, Iran
2- Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran ,sh.mahdavi@malayeru.ac.ir
3- Department of Environment, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran
4- Department of REgional Models and geo-Hydrological Impacts Division (REMHI), Euro-Mediterranean Center on Climate Change (CMCC), Caserta, Italy
5- Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran
6- Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran
2- Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran ,
3- Department of Environment, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran
4- Department of REgional Models and geo-Hydrological Impacts Division (REMHI), Euro-Mediterranean Center on Climate Change (CMCC), Caserta, Italy
5- Department of Soil Science, Faculty of Agriculture, Malayer University, Malayer, Iran
6- Department of Nature Engineering, Faculty of Natural Resources and Environment, Malayer University, Malayer, Iran
Abstract: (52 Views)
Background and Objective: Dyes are among the most widespread pollutants found in industrial wastewater. The aim of this study is to investigate the potential of vineyard wood waste as a green adsorbent for the removal of polyazo solophenyl dye from aquatic environments.
Materials and Methods: In this laboratory research, two forms of adsorbents modified with H₂SO₄ and NaOH were used. Data obtained from dye adsorption in synthetic solutions were fitted to isotherm, kinetic, and thermodynamic models, with all calculations performed using Excel software. Zeta potential analysis, along with FTIR, BET, and FESEM-EDS instrumental analyses, was conducted to determine the properties of the adsorbent. Additionally, the desorption rates of the adsorbents were analyzed.
Results: The results showed that the highest color removal efficiency for the adsorbent modified with H2SO4 was achieved at a contact time of 180 minutes and a reaction temperature of 50 °C, while for the adsorbent modified with NaOH, the highest efficiency was observed at a contact time of 105 minutes and a reaction temperature of 25 °C. For both adsorbents, the optimal pH was 4, and the optimal adsorbent dosage was 1 g. The adsorption data for both modified adsorbents followed the pseudo-second-order kinetic model, while the equilibrium data aligned with the Freundlich and Temkin isotherm models. The adsorption capacities were found to be 22.27 mg/g and 9.87 mg/g for the adsorbents modified with acid and base, respectively, under optimal conditions.
Conclusion: This study introduces a novel, low-cost adsorbent derived from natural waste for water pollution removal, transforming the current approach into a cost-effective and eco-friendly solution.
Materials and Methods: In this laboratory research, two forms of adsorbents modified with H₂SO₄ and NaOH were used. Data obtained from dye adsorption in synthetic solutions were fitted to isotherm, kinetic, and thermodynamic models, with all calculations performed using Excel software. Zeta potential analysis, along with FTIR, BET, and FESEM-EDS instrumental analyses, was conducted to determine the properties of the adsorbent. Additionally, the desorption rates of the adsorbents were analyzed.
Results: The results showed that the highest color removal efficiency for the adsorbent modified with H2SO4 was achieved at a contact time of 180 minutes and a reaction temperature of 50 °C, while for the adsorbent modified with NaOH, the highest efficiency was observed at a contact time of 105 minutes and a reaction temperature of 25 °C. For both adsorbents, the optimal pH was 4, and the optimal adsorbent dosage was 1 g. The adsorption data for both modified adsorbents followed the pseudo-second-order kinetic model, while the equilibrium data aligned with the Freundlich and Temkin isotherm models. The adsorption capacities were found to be 22.27 mg/g and 9.87 mg/g for the adsorbents modified with acid and base, respectively, under optimal conditions.
Conclusion: This study introduces a novel, low-cost adsorbent derived from natural waste for water pollution removal, transforming the current approach into a cost-effective and eco-friendly solution.
Type of Study: Research |
Subject:
تصفیه آب
Received: 2024/09/30 | Accepted: 2025/02/2 | Published: 2025/03/8
Received: 2024/09/30 | Accepted: 2025/02/2 | Published: 2025/03/8
Send email to the article author
| Rights and Permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
