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El Jery A, Alawamleh HSK, Sami MH, Abbas HA, Sammen SS, Ahsan A, Imteaz MA, Shanableh A, Shafiquzzaman M, Osman H, Al-Ansari N. Isotherms, kinetics and thermodynamic mechanism of methylene blue dye adsorption on synthesized activated carbon. Sci Rep 2024; 14:970. [PMID: 38200095 PMCID: PMC10781703 DOI: 10.1038/s41598-023-50937-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
The treatment of methylene blue (MB) dye wastewater through the adsorption process has been a subject of extensive research. However, a comprehensive understanding of the thermodynamic aspects of dye solution adsorption is lacking. Previous studies have primarily focused on enhancing the adsorption capacity of methylene blue dye. This study aimed to develop an environmentally friendly and cost-effective method for treating methylene blue dye wastewater and to gain insights into the thermodynamics and kinetics of the adsorption process for optimization. An adsorbent with selective methylene blue dye adsorption capabilities was synthesized using rice straw as the precursor. Experimental studies were conducted to investigate the adsorption isotherms and models under various process conditions, aiming to bridge gaps in previous research and enhance the understanding of adsorption mechanisms. Several adsorption isotherm models, including Langmuir, Temkin, Freundlich, and Langmuir-Freundlich, were applied to theoretically describe the adsorption mechanism. Equilibrium thermodynamic results demonstrated that the calculated equilibrium adsorption capacity (qe) aligned well with the experimentally obtained data. These findings of the study provide valuable insights into the thermodynamics and kinetics of methylene blue dye adsorption, with potential applications beyond this specific dye type. The utilization of rice straw as an adsorbent material presents a novel and cost-effective approach for MB dye removal from wastewater.
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Affiliation(s)
- Atef El Jery
- Department of Chemical Engineering, College of Engineering, King Khalid University, 61411, Abha, Saudi Arabia
| | - Heba Saed Kariem Alawamleh
- Department of Basic Scientific Sciences, Al-Huson College, Al-Balqa Applied University, P. O. Box 50, Al-Huson, 21510, Jordan
| | | | | | - Saad Sh Sammen
- Department of Civil Engineering, College of Engineering, University of Diyala, Baquba, Diyala Governorate, 32001, Iraq
| | - Amimul Ahsan
- Department of Civil and Environmental Engineering, Islamic University of Technology (IUT), Gazipur, 1704, Bangladesh.
- Department of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, Australia.
| | - M A Imteaz
- Department of Civil and Construction Engineering, Swinburne University of Technology, Melbourne, Australia
| | - Abdallah Shanableh
- Research Institute of Sciences and Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates
- Department of Civil and Environmental Engineering, University of Sharjah, 27272, Sharjah, United Arab Emirates
| | - Md Shafiquzzaman
- Department of Civil Engineering, College of Engineering, Qassim University, 51452, Buraidah, Saudi Arabia
| | - Haitham Osman
- Department of Chemical Engineering, College of Engineering, King Khalid University, 61411, Abha, Saudi Arabia
| | - Nadhir Al-Ansari
- Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, 97187, Lulea, Sweden.
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Zhang L, Yang L, Chen J, Zhang Y, Zhou X. Enhancing efficient reclaim of phosphorus from simulated urine by magnesium-functionalized biochar: Adsorption behaviors, molecular-level mechanistic explanations and its potential application. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167293. [PMID: 37742963 DOI: 10.1016/j.scitotenv.2023.167293] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/04/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Magnesium-functionalized Magnolia grandiflora Linn leaf-derived biochar (MBC) capable of efficiently reclaiming phosphorus from urine was synthesized by slow co-pyrolysis. Four adsorption kinetic and seven adsorption isotherm models were fitted to the batch adsorption and desorption experimental data, and it was found that pseudo-first-order kinetic model and multilayer model with saturation best described the phosphate-phosphorus (PO43--P) adsorption process by MBC. MBC and phosphorus-saturated MBC (P-MBC) were found to offer outstanding phosphorus adsorption and slow release properties, respectively. Based on material characterization, statistical physics, adsorption energy distribution and statistical thermodynamics, a multi-ionic, inclined orientation, entropy-driven spontaneous endothermic process of MBC on PO43--P was proposed, involving physicochemical interactions (porous filling, electrostatic attraction, ligand exchange and surface precipitation). Further, seed germination and early seedling growth experiments proved that P-MBC can be used as a slow-release fertilizer. Overall, MBC offers prospective applications as an efficient phosphorus adsorbent and then as a slow-release fertilizer.
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Affiliation(s)
- Lei Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China
| | - Libin Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China.
| | - Jiabin Chen
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, PR China; Key Laboratory of Rural Toilet and Sewage Treatment Technology, Ministry of Agriculture and Rural Affairs, Shanghai 200092, PR China.
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Gao F, Zhang L, Yang L, Zhou X, Zhang Y. Structural Properties of Graphene Oxide Prepared from Graphite by Three Different Methods and the Effect on Removal of Cr(VI) from Aqueous Solution. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020279. [PMID: 36678032 PMCID: PMC9867312 DOI: 10.3390/nano13020279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/25/2022] [Accepted: 01/04/2023] [Indexed: 05/27/2023]
Abstract
Herein, three types of graphene oxides (GOs, GO-M1, GO-M2 and GO-M3) have been successfully prepared from graphite by three different methods and utilized for the removal of Cr(VI) from aqueous solutions. Further, the effects of initial concentration and pH, adsorbent dosage, contact time and temperature on the adsorption performance of GOs were investigated by batch adsorption experiments. Furthermore, the adsorption mechanisms for Cr(VI) adsorption by GOs are mainly the redox reaction and electrostatic attraction, while there are also pore filling, ion exchange and complexation involved in these adsorption processes. The adsorption kinetic and isotherm data indicate that these adsorption processes of GOs on Cr(VI) are dominantly monolayer chemisorption and equilibrium can be reached in 30 min. The saturation adsorption capacities (Qm, 298.15 K) of GO-M1, GO-M2 and GO-M3 for Cr(VI) are estimated to be 3.5412 mg⋅g-1, 2.3631 mg⋅g-1 and 7.0358 mg⋅g-1, respectively. Moreover, the adsorption thermodynamic study showed that these adsorption processes of Cr(VI) by the three types of GOs at 298.15 K to 323.15 K are endothermic, entropy-driven and thermodynamically spontaneous and feasible. Overall, these findings provided vital insights into the mechanism and application of Cr(VI) removal by GOs.
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Affiliation(s)
- Feng Gao
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Lei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Libin Yang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Xuefei Zhou
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
| | - Yalei Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Key Laboratory of Yangtze Water Environment for Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Tongji University, Shanghai 200092, China
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