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Mamba FB, Mbuli BS, Ramontja J. Synergistic effect of ZnO/Ag 2O@g-C 3N 4 based nanocomposites embedded in carrageenan matrix for dye degradation in water. Heliyon 2024; 10:e31109. [PMID: 38828361 PMCID: PMC11140603 DOI: 10.1016/j.heliyon.2024.e31109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 06/05/2024] Open
Abstract
This research achieved success by synthesizing innovative nanocomposite composed of zinc oxide (ZnO), graphitic carbon nitride (g-C3N4) and silver oxide (Ag2O) nanomaterials incorporated into a carrageenan matrix, thus creating an environmentally friendly and stable support structure. The synthesis process involved hydrothermal and chemical precipitation methods to create photocatalytic g-C3N4, ZnO, and Ag2O nanocomposites. The success is evident through the characterization results, which unveiled distinctive peaks corresponding to Zn-O (590-404 cm-1) and Ag-O (2072 cm-1) stretching in the Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses, conclusively confirming the successful synthesis of g-C3N4, ZnO, Ag2O, and their respective nanocomposites. Further validation through a scanning electron microscope coupled with an energy dispersive spectrometer (SEM-EDX) and elemental mapping affirmed the presence of Zn, O, Ag, C, and N. Additionally, transmission electron microscope (TEM) imaging unveiled the nanosheet morphology of g-C3N4, the nanorod structure of ZnO, and the spherical form of Ag2O nanomaterials. ZnO and Ag2O nanomaterials demonstrated a consistent 10-20 nm size range. To underscore their ability to harness visible light, the nanomaterials were excited at 380 nm, emitting visible light emission within the 400-450 nm range. The synthesized nanocomposites showcased outstanding adsorption and photocatalytic properties, achieving efficiency ranging from 80 % to 98 %, attributed to the synergistic interactions between the various components. These findings culminate in a confirmation of the research's success, validating the exceptional potential of these nanocomposites for various applications.
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Affiliation(s)
- Feziwe B. Mamba
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
- DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, 2028, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Bhekani S. Mbuli
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
- DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, 2028, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Doornfontein, 2028, South Africa
| | - James Ramontja
- Department of Chemical Sciences, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
- DSI/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, 2028, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Doornfontein, 2028, South Africa
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Olivito F, Algieri V, Jiritano A, Tallarida MA, Costanzo P, Maiuolo L, De Nino A. Bio-Based Polyurethane Foams for the Removal of Petroleum-Derived Pollutants: Sorption in Batch and in Continuous-Flow. Polymers (Basel) 2023; 15:polym15071785. [PMID: 37050399 PMCID: PMC10098679 DOI: 10.3390/polym15071785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 03/27/2023] [Accepted: 04/01/2023] [Indexed: 04/07/2023] Open
Abstract
In this paper, we evaluated the potential of two synthesized bio-based polyurethane foams, PU1 and PU2, for the removal of diesel and gasoline from water mixtures. We started the investigation with the experiment in batch. The total sorption capacity S (g/g) for the diesel/water system was slightly higher with respect to gasoline/water, with a value of 62 g/g for PU1 and 65 g/g for PU2. We found that the sorption follows a pseudo second-order kinetic model for both the materials. The experimental data showed that the best isotherm models were obtained with Langmuir and Redlich–Peterson models. In addition, to provide an idea of the process scalability for future industrial applications, we tested the sorption capacity of the foams using a continuous-flow of the same oil/water mixtures and we obtained performances even better with respect to the batch test. The regeneration can be performed up to 50 times by centrifuge, without losing efficacy.
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Affiliation(s)
- Fabrizio Olivito
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Vincenzo Algieri
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Antonio Jiritano
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Matteo Antonio Tallarida
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Paola Costanzo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Loredana Maiuolo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
| | - Antonio De Nino
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 12C, 87036 Rende, CS, Italy
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Xiao Y, Luo R, Ji Y, Li S, Hu H, Zhang X. Removal of Copper(II) from Aqueous Environment Using Silk Sericin-Derived Carbon. Int J Mol Sci 2022; 23:ijms231911202. [PMID: 36232512 PMCID: PMC9570140 DOI: 10.3390/ijms231911202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/18/2022] [Accepted: 09/21/2022] [Indexed: 11/22/2022] Open
Abstract
Sericin is a by-product of the silk industry. Its recycling contributes to environmental protection and the sustainable development of the cocoon silk industry. In this paper, on the basis of realizing sericin enrichment in solution, the Cu(II) adsorption capacities of sericin-derived carbon (SC), prepared at different pyrolysis temperatures, were studied. SC was characterized using scanning electron microscopy (SEM) and the zeta potential. The effects of the initial concentration of Cu(II), pH, adsorption temperature, and contact time on the adsorption process were evaluated, followed by an investigation of the mechanism of Cu(II) adsorption by SC. The results showed that SC has a porous structure that provides sites for Cu(II) adsorption. The maximum adsorption capacity of Cu(II) onto SC1050, 17.97 mg/g, was obtained at an adsorption temperature of 35 °C and a pH of 5.5. In addition, the pseudo-second-order kinetic model and Langmuir isotherm model correctly described the adsorption process of Cu(II) onto SC1050. Therefore, SC can act as a potential adsorbent for removing Cu(II) from water. This study helps promote the effective use of cocoon silk resources.
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Affiliation(s)
- Yuting Xiao
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
- Westa College, Southwest University, Chongqing 400715, China
| | - Ruixiao Luo
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
| | - Yansong Ji
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
| | - Shiwei Li
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
- Westa College, Southwest University, Chongqing 400715, China
| | - Hongmei Hu
- Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan 316021, China
| | - Xiaoning Zhang
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
- Correspondence:
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Jomeh Farsangi Z, Song X, Yang K, Hoare T. Design and optimization of superabsorbent hydrogels based on acrylic acid/
2‐acrylamido‐2‐methylpropane
sulfonic acid copolymers. J Appl Polym Sci 2022. [DOI: 10.1002/app.52849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Xuedong Song
- Global Research and Engineering Kimberly‐Clark Corp Roswell Georgia USA
| | - Kaiyuan Yang
- Global Research and Engineering Kimberly‐Clark Corp Roswell Georgia USA
| | - Todd Hoare
- Department of Chemical Engineering McMaster University Hamilton Ontario Canada
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Cao H, Ma X, Wei Z, Tan Y, Chen S, Ye T, Yuan M, Yu J, Wu X, Yin F, Xu F. Behavior and mechanism of the adsorption of lead by an eco-friendly porous double-network hydrogel derived from keratin. CHEMOSPHERE 2022; 289:133086. [PMID: 34848225 DOI: 10.1016/j.chemosphere.2021.133086] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/20/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
In this study, a novel eco-friendly porous double-network keratin/polyacrylic acid (keratin-PAA) hydrogel was prepared using the one-pot method to improve the adsorption performance of the hydrogel toward Pb(II). The obtained porous keratin-PAA hydrogel was then characterized using nitrogen adsorption-desorption isotherms, thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The interaction mechanism of Pb(II) and the keratin-PAA hydrogel was further investigated using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The results showed that keratin-PAA hydrogel was successfully synthesized, with a specific surface area of 49.35 m2/g and a uniform pore distribution of 6.20 nm. The synthesized keratin-PAA hydrogel only took 6 min to adsorb nearly 70% of Pb(II) from the solution because of the interconnected porous network. The keratin-PAA hydrogel also showed a maximal adsorption amount of 234.6 mg/g, and satisfactory selectivity toward Pb(II). The adsorption kinetics of the keratin-PAA hydrogel binding to Pb(II) could be better described by the pseudo-second-order model, whereas the adsorption isotherms could be fitted using the Langmuir equation; this suggested that chemisorption was the main rate-limiting step. The XPS and FT-IR analysis results indicated that the sulfur-, nitrogen- and oxygen-containing groups in the keratin-PAA hydrogel were the main binding sites for Pb(II). In real aqueous samples, the keratin-PAA hydrogel could remove 93-104% of Pb(II). It is clear that the keratin-PAA hydrogel is an outstanding adsorbent material for the removal of Pb(II) from aqueous samples.
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Affiliation(s)
- Hui Cao
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Xiuna Ma
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Ziqi Wei
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Yang Tan
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Siwei Chen
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Tai Ye
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Min Yuan
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Jinsong Yu
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Xiuxiu Wu
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Fengqin Yin
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China
| | - Fei Xu
- School of Medical Instrument and Food Engineering, Shanghai Engineering Research Center for Food Rapid Detection, University of Shanghai for Science and Technology, P.O. Box 454, No. 516, Jungong Road, Shanghai, 200093, PR China.
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The impact of methionine, tryptophan and proline on methane (95%)–propane (5%) hydrate formation. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-02089-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Akhmetzhan A, Myrzakhmetova N, Amangeldi N, Kuanyshova Z, Akimbayeva N, Dosmaganbetova S, Toktarbay Z, Longinos SN. A Short Review on the N,N-Dimethylacrylamide-Based Hydrogels. Gels 2021; 7:234. [PMID: 34940294 PMCID: PMC8701052 DOI: 10.3390/gels7040234] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 01/21/2023] Open
Abstract
Scientists have been encouraged to find different methods for removing harmful heavy metal ions and dyes from bodies of water. The adsorption technique offers promising outcomes for heavy metal ion removal and is simple to run on a large scale, making it appropriate for practical applications. Many adsorbent hydrogels have been developed and reported, comprising N,N-dimethylacrylamide (DMAA)-based hydrogels, which have attracted a lot of interest due to their reusability, simplicity of synthesis, and processing. DMAA hydrogels are also a suitable choice for self-healing materials and materials with good mechanical properties. This review work discusses the recent studies of DMAA-based hydrogels such as hydrogels for dye removal and the removal of hazardous heavy metal ions from water. Furthermore, there are also references about their conduct for self-healing materials and for enhancing mechanical properties.
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Affiliation(s)
- Ayatzhan Akhmetzhan
- Faculty of Natural Sciecnes, L.N. Gumilyov Eurasian National University, Kazhymukan Street 5, Nur-Sultan 010008, Kazakhstan; (A.A.); (S.D.)
| | - Nurbala Myrzakhmetova
- Department of Chemistry, Faculty of Natural Science, Kazakh National Woman’s Teacher Training University, Aitekebi Street 99, Almaty 700420, Kazakhstan; (N.M.); (Z.K.); (N.A.)
| | - Nurgul Amangeldi
- Department of Pre-University Training, Faculty of Pre-University Education, Al-Farabi Kazakh National University, Al-Farabi Av. 71, Almaty 700420, Kazakhstan;
| | - Zhanar Kuanyshova
- Department of Chemistry, Faculty of Natural Science, Kazakh National Woman’s Teacher Training University, Aitekebi Street 99, Almaty 700420, Kazakhstan; (N.M.); (Z.K.); (N.A.)
| | - Nazgul Akimbayeva
- Department of Chemistry, Faculty of Natural Science, Kazakh National Woman’s Teacher Training University, Aitekebi Street 99, Almaty 700420, Kazakhstan; (N.M.); (Z.K.); (N.A.)
| | - Saule Dosmaganbetova
- Faculty of Natural Sciecnes, L.N. Gumilyov Eurasian National University, Kazhymukan Street 5, Nur-Sultan 010008, Kazakhstan; (A.A.); (S.D.)
| | - Zhexenbek Toktarbay
- Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences Nazarbayev University, Kabanbaybatyr av.53, Nur-Sultan 010000, Kazakhstan
| | - Sotirios Nik. Longinos
- Department of Petroleum Engineering, Nazarbayev University, Kabanbaybatyr av.53, Nur-Sultan 010000, Kazakhstan;
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