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Jin H, Xu X, Yu X, Yu S, Wang S, Qu X. Bimetallic Organic Gel for Effective Methyl Orange Dye Adsorption. Gels 2024; 10:208. [PMID: 38534626 DOI: 10.3390/gels10030208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
A bimetallic organic gel (MOG-Fe/Al) was synthesized through the solvothermal method. The gel state of the product obtained under optimized gel formation conditions is sufficient to carry 2 g of weight for a long time. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Brunauer-Emmett-Teller (BET) technique, and X-ray photoelectron spectroscopy (XPS) analysis confirmed the structures and morphologies of the synthesized materials. MOG-Fe/Al, with good stability, excellent durability, and wide applicability, exhibited efficient MO adsorption capacity as high as 335.88 mg/g at 25 °C. Adsorption-influencing factors including solution pH, contact time, and temperature were investigated. The adsorption performance of the bimetallic organic gel was better than that of the monometallic organic gels (MOG-Fe and MOG-Al), and its adsorption processes were in accordance with the pseudo-second-order kinetic and Langmuir isothermal models. The excellent adsorption capacity of the MOG-Fe/Al is due to its surface structure, pore volume, π-π interactions, hydrogen bonds, and electrostatic interactions.
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Affiliation(s)
- Hua Jin
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
| | - Xinyuan Xu
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
| | - Xiaoyang Yu
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
| | - Shihua Yu
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
| | - Shanshan Wang
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
| | - Xiaoshu Qu
- Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China
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El-Ghoul Y, Alsamani S. Highly Efficient Biosorption of Cationic Dyes via Biopolymeric Adsorbent-Material-Based Pectin Extract Polysaccharide and Carrageenan Grafted to Cellulosic Nonwoven Textile. Polymers (Basel) 2024; 16:585. [PMID: 38475270 DOI: 10.3390/polym16050585] [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: 01/02/2024] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 03/14/2024] Open
Abstract
Water scarcity and contamination have emerged as critical global challenges, requiring the development of effective and sustainable solutions for the treatment of contaminated water. Recently, functionalized polymer biomaterials have garnered significant interest because of their potential for a wide range of water treatment applications. Accordingly, this paper highlights the design of a new adsorbent material based on a cellulosic nonwoven textile grafted with two extracted biopolymers. The layer-by-layer grafting technique was used for the polyelectrolyte multi-layer (PEM) biosorbent production. Firstly, we extracted a Suaeda fruticosa polysaccharide (SFP) and confirmed its pectin-like polysaccharide structure via SEC, NMR spectroscopy, and chemical composition analyses. Afterward, the grafting was designed via an alternating multi-deposition of layers of SFP polymer and carrageenan crosslinked with 1,2,3,4-butanetetracarboxylic acid (BTCA). FT-IR and SEM were used to characterize the chemical and morphological characteristics of the designed material. Chemical grafting via polyesterification reactions of the PEM biosorbent was confirmed through FT-IR analysis. SEM revealed the total filling of material microspaces with layers of grafted biopolymers and a rougher surface morphology. The assessment of the swelling behavior revealed a significant increase in the hydrophilicity of the produced adsorbent system, a required property for efficient sorption potential. The evaluation of the adsorption capabilities using the methylene blue (MB) as cationic dye was conducted in various experimental settings, changing factors such as the pH, time, temperature, and initial concentration of dye. For the untreated and grafted materials, the greatest adsorbed amounts of MB were 130.6 mg/g and 802.6 mg/g, respectively (pH = 4, T = 22 C, duration = 120 min, and dye concentration = 600 mg/L). The high adsorption performance, compared to other reported materials, was due to the presence of a large number of hydroxyl, sulfonate, and carboxylic functional groups in the biosorbent polymeric system. The adsorption process fitted well with the pseudo-first-order kinetic model and Langmuir/Temkin adsorption isotherms. This newly developed multi-layered biosorbent shows promise as an excellent adsorption resultant and cheap-cost/easy preparation alternative for treating industrial wastewater.
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Affiliation(s)
- Yassine El-Ghoul
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
- Textile Engineering Laboratory, University of Monastir, Monastir 5019, Tunisia
| | - Salman Alsamani
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
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Yang F, Yang Y, Chen S, Jin C, Jiang J, Liu T, Lv F, Yang C, Lu Z, Li J. Shrinkage Reduction in Nanopore-Rich Cement Paste Based on Facile Organic Modification of Montmorillonite. MATERIALS (BASEL, SWITZERLAND) 2024; 17:922. [PMID: 38399172 PMCID: PMC10890156 DOI: 10.3390/ma17040922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/29/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024]
Abstract
The organic modification of montmorillonite was successfully achieved using cetyltrimethyl ammonium bromide under facile conditions. The modified montmorillonite was subsequently used for the fabrication of montmorillonite-induced nanopore-rich cement paste (MNCP), and the shrinkage behavior and fundamental performance of MNCP were also investigated. The results indicate that alkali cations on a montmorillonite layer surface were exchanged by using CTAB under 80 °C, successfully achieving the organic modification of montmorillonite. As a pore-forming agent, the modified montmorillonite caused a reduction in shrinkage: the 28-day autogenous shrinkage at a design density of 400 kg/m3 and 800 kg/m3 was reduced to 2.05 mm/m and 0.24 mm/m, and the highest reduction percentages during the 28-day drying shrinkage were 68.1% and 62.2%, respectively. The enlarged interlamellar pores and hydrophobic effects caused by the organic modification of montmorillonite aided this process. Organic-modified montmorillonite had a minor influence on dry density and thermal conductivity and could contribute to an enhancement of strength in MNCP.
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Affiliation(s)
- Fengyuan Yang
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
| | - Ying Yang
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
| | - Shaoyou Chen
- Ningbo Construction Engineering Group Co., Ltd., Ningbo 345040, China; (S.C.); (C.J.)
| | - Chao Jin
- Ningbo Construction Engineering Group Co., Ltd., Ningbo 345040, China; (S.C.); (C.J.)
| | - Jun Jiang
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
| | - Tie Liu
- Ningbo Construction Engineering Group Co., Ltd., Ningbo 345040, China; (S.C.); (C.J.)
| | - Fei Lv
- Ningbo Construction Engineering Group Co., Ltd., Ningbo 345040, China; (S.C.); (C.J.)
| | - Chenxi Yang
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
| | - Zhongyuan Lu
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
| | - Jun Li
- State Key Laboratory of Environmentally Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China; (F.Y.); (Y.Y.)
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Chouli F, Ezzat AO, Sabantina L, Benyoucef A, Zehhaf A. Optimization Conditions of Malachite Green Adsorption onto Almond Shell Carbon Waste Using Process Design. Molecules 2023; 29:54. [PMID: 38202637 PMCID: PMC10780247 DOI: 10.3390/molecules29010054] [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: 11/19/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 01/12/2024] Open
Abstract
Almond shell-based biocarbon is a cheap adsorbent for the removal of malachite green, which has been investigated in this work. FT-IR, DRX, and BET were used to characterize almond shell-based biocarbon. The nitrogen adsorption-desorption isotherms analysis results showed a surface area of 120.21 m2/g and a type H4 adsorption isotherm. The parameters of initial dye concentration (5-600 mg.L-1), adsorbent mass (0.1-0.6 mg), and temperature (298-373 K) of adsorption were investigated. The experiments showed that the almond shell could be used in a wide concentration and temperature range. The adsorption study was fitted to the Langmuir isotherm and the pseudo-second-order kinetic model. The results of the FT-IR analysis demonstrated strong agreement with the pseudo-second-order chemisorption process description. The maximum adsorption capacity was calculated from the Langmuir isotherm and evaluated to be 166.66 mg.g-1. The positive ∆H (12.19 J.mol-1) indicates that the adsorption process is endothermic. Almond shell was found to be a stable adsorbent. Three different statistical design sets of experiments were taken out to determine the best conditions for the batch adsorption process. The optimal conditions for MG uptake were found to be adsorbent mass (m = 0.1 g), initial dye concentration (C0 = 600 mg.L-1), and temperature (T = 25 °C). The analysis using the D-optimal design showed that the model obtained was important and significant, with an R2 of 0.998.
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Affiliation(s)
- Faiza Chouli
- LMAE Laboratory, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria;
| | - Abdelrahman Osama Ezzat
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Lilia Sabantina
- Department of Apparel Engineering and Textile Processing, Berlin University of Applied Sciences—HTW, 12459 Berlin, Germany
- Department of Textile and Paper Engineering, Polytechnic University of Valencia, E-03801 Alcoy, Spain
| | - Abdelghani Benyoucef
- LSTE Laboratory, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria
| | - Abdelhafid Zehhaf
- Laboratory of Process Engineering and Chemistry Solution, Department of Process Engineering, Faculty of Science and Technologies, Mascara University, Mascara 29000, Algeria;
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Mosoarca G, Vancea C, Popa S, Dan M, Boran S. Utilizing Novel Lignocellulosic Material from Hart's-Tongue Fern ( Asplenium scolopendrium) Leaves for Crystal Violet Adsorption: Characterization, Application, and Optimization. Polymers (Basel) 2023; 15:3923. [PMID: 37835973 PMCID: PMC10575424 DOI: 10.3390/polym15193923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
In this work, a new lignocellulosic adsorbent was obtained and tested for crystal violet dye removal from water. The material was obtained from hart's-tongue fern (Asplenium scolopendrium) leaves after minimal processing, without chemical or thermal treatment. The surface of the material was characterized using a variety of techniques, including FTIR, SEM, and color analysis. The effect of various factors on the adsorption capacity was then investigated and discussed. The kinetic and equilibrium studies showed that the general-order kinetic model and the Sips isotherm are the most suitable to describe the adsorption process. The equilibrium time was reached after 20 min and the maximum calculated value of the adsorption capacity was 224.2 (mg g-1). The determined values for the thermodynamic parameters indicated physical adsorption as the main mechanism involved in the process. The Taguchi method was used to optimize the adsorption conditions and identify the most influential controllable factor, which was pH. ANOVA (general linear model) was used to calculate the percentage contribution of each controllable factor to dye removal efficiency. Analysis of all the results shows that hart's-tongue fern (Asplenium scolopendrium) leaves are a very inexpensive, readily available, and effective adsorbent for removing crystal violet dye from aqueous solutions.
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Affiliation(s)
| | | | | | - Mircea Dan
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (G.M.); (C.V.); (S.P.)
| | - Sorina Boran
- Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Bd. V. Parvan, No. 6, 300223 Timisoara, Romania; (G.M.); (C.V.); (S.P.)
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