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Lo Dico G, Lisuzzo L, Carcelén V, Cavallaro G, Haranczyk M. Thermogravimetric Analysis of Moisture in Natural and Thermally Treated Clay Materials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2231. [PMID: 38793298 PMCID: PMC11123035 DOI: 10.3390/ma17102231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024]
Abstract
Clays are a class of porous materials; their surfaces are naturally covered by moisture. Weak thermal treatment may be considered practical to remove the water molecules, changing the surface properties and making the micro- and/or mesoporosities accessible to interact with other molecules. Herein, a modulated thermogravimetric analysis (MTGA) study of the moisture behavior on the structures of five, both fibrous and laminar, clay minerals is reported. The effect of the thermal treatment at 150 °C, which provokes the release of weakly adsorbed water molecules, was also investigated. The activation energies for the removal of the adsorbed water (Ea) were calculated, and they were found to be higher, namely, from 160 to 190 kJ mol-1, for fibrous clay minerals compared to lamellar structures, ranging in this latter case from 80 to 100 kJ mol-1. The thermal treatment enhances the rehydration in Na-montmorillonite, stevensite, and sepiolite structures with a decrease in the energy required to remove it, while Ea increases significantly in palygorskite (from 164 to 273 kJ mol-1). As a proof of concept, the MTGA results are statistically correlated, together with a full characterization of the physico-chemical properties of the five clay minerals, with the adsorption of two molecules, i.e., aflatoxin B1 (AFB1) and β-carotene. Herein, the amount of adsorbed molecules ranges from 12 to 97% for the former and from 22 to 35% for the latter, depending on the particular clay. The Ea was correlated with AFB1 adsorption with a Spearman score of -0.9. When the adsorbed water is forcibly removed, e.g., under vacuum conditions and high temperatures, the structure becomes the most important, decreasing the Spearman score between β-carotene and Ea to -0.6.
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Affiliation(s)
- Giulia Lo Dico
- IMDEA Materials Institute, C/Eric Kandel 2, Getafe, 28906 Madrid, Spain;
- Tolsa Group, Carretera de Madrid a Rivas Jarama, 35, 28031 Madrid, Spain;
- Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Unive sidad, 30, Leganés, 28911 Madrid, Spain
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy;
| | - Lorenzo Lisuzzo
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy;
| | - Verónica Carcelén
- Tolsa Group, Carretera de Madrid a Rivas Jarama, 35, 28031 Madrid, Spain;
- Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Unive sidad, 30, Leganés, 28911 Madrid, Spain
| | - Giuseppe Cavallaro
- Department of Physics and Chemistry, University of Palermo, Viale delle Scienze, pad. 17, 90128 Palermo, Italy;
| | - Maciej Haranczyk
- IMDEA Materials Institute, C/Eric Kandel 2, Getafe, 28906 Madrid, Spain;
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Cullari LL, Yosefi G, Nativ-Roth E, Furó I, Regev O. Decoupling rheology from particle concentration by charge modulation: Aqueous graphene-clay dispersions. J Colloid Interface Sci 2024; 655:863-875. [PMID: 37979292 DOI: 10.1016/j.jcis.2023.11.047] [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: 08/01/2023] [Revised: 10/18/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023]
Abstract
HYPOTHESIS Aqueous graphene dispersions are usually obtainable by treating the surface of graphene chemically or physically. In these dispersions, the rheological properties (e.g., viscosity) are governed by a direct coupling to the graphene concentration, which limits their applicability. An alternative approach for dispersing graphene is trapping them in a viscoelastic-network formed by a co-dispersed charged fibrous-clay, Sepiolite. Contrary to surface treatment, the rheological properties of these dispersions are set by the clay particles. The rheology of charged-colloidal dispersions is governed by various parameters, including interparticle interactions. Hence, the rheology of the dispersion could be modulated by changing the clay surface charge without compromising the dispersed graphene concentration. EXPERIMENTAL The surface charge of Sepiolite was modulated either by charge-screening (by NaCl added to the solution) or by surface-charging (by attachment of highly charged ions, e.g., HexaMetaPhosphate, HMP-) and the effect on rheology and graphene concentration was assessed. In particular, loading the dispersion with HMP- yielded low viscosity, storage, and loss moduli (two orders of magnitude lower than the corresponding HMP--free dispersion) while the graphene concentration was maintained. We demonstrate that by this charge-modulation approach, reaching the rheological requirements of different applications without compromising on graphene concentration is plausible.
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Affiliation(s)
- Lucas Luciano Cullari
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
| | - Gal Yosefi
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Einat Nativ-Roth
- The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - István Furó
- Division of Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, Stockholm SE-1044, Sweden.
| | - Oren Regev
- Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel; The Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
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Li X, Feng Y, Zhang K, Zhou J, Sun J, Rong K, Liu S. Composite carrier enhanced bacterial adhesion and nitrogen removal in partial nitrification/anammox process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161659. [PMID: 36657689 DOI: 10.1016/j.scitotenv.2023.161659] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
The rapid start-up and stable operation of one-stage (Partial nitrification/anammox) PN/A process for low-ammonium wastewater are difficult to be achieved, and many carriers are designed to solve this problem. Here, a composite carrier was developed, in which sepiolite and non-woven fabrics were assembled in polypropylene spherical shells. At the start-up phase, PA reactor using the composite carriers reached a higher nitrogen removal rate of 134.50 ± 19.60 mg·N·L-1d-1, in contrast to that of 48.85 ± 19.64 mg·N·L-1d-1 in the PB reactor without sepiolite carriers. When the final influent ammonium concentration of PN/A process is 100 mg/L, the total nitrogen removal efficiency can reach 72 ± 0.03 %. High biomass immobilization ability of composite carrier was evidenced by the greater adsorption trend between sludge and sepiolite than that between sludge and non-woven fabrics, where hydrophobic interaction and Van der Waals interaction played a major role. Extracellular protein (PN) content and the ratio of PN and extracellular polysaccharide of samples in PA were significantly higher than those in PB, verifying higher biofilm formation ability on the composite carrier. The composite carrier also increased the abundance of dominant bacteria in PN/A process, especially AOB, the relative abundance of which reached 46.11 %. And it increased the abundance of essential functional genes for nitrogen conversion as their perfect acid neutralizing effects. This study is of great significance in improving the start-up speed and stable operation of this process.
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Affiliation(s)
- Xinjue Li
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Yiming Feng
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Kuo Zhang
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Jianhang Zhou
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Jingqi Sun
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Kaiyu Rong
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; Key Laboratory of Water and Sediment Sciences, Ministry of Education of China, Beijing 100871, China
| | - Sitong Liu
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; State Environmental Protection Key Laboratory of All Material Fluxes in River Ecosystems, Beijing 100871, China.
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Pawar RR, Chuaicham C, Sekar K, Rajendran S, Sasaki K. Synthesis, characterization, and application of MOF@clay composite as a visible light-driven photocatalyst for Rhodamine B degradation. CHEMOSPHERE 2022; 291:132922. [PMID: 34800503 DOI: 10.1016/j.chemosphere.2021.132922] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/17/2021] [Accepted: 11/14/2021] [Indexed: 06/13/2023]
Abstract
Metal Organic Frameworks (MOFs) with natural clay materials is a relatively new research avenue that appears to reduce high production costs and address the instability issues of pure MOFs. A novel MOF and natural clay composites of MOF@Sp_n (n = 1-4) were fabricated by the in situ precipitation of stable MOF, Zr6O4(OH)4 (ABDC)6 (where ABDC = 2-aminobenzene-1,4-dicarboxylic acid), over natural sepiolite (Sp) clay and used as a photocatalysts for elimination of organic dyes in aqueous media. The formation of MOF@Sp_n due to its strong electrostatic interactions between the positively charged MOF and the negatively charged sepiolite. Optimizing the Sp content in the composite strongly influenced the dispersibility, crystallinity of MOFs, resulting in progressively functional hybrid materials with an excellent optoelectronic properties. The composites lessened the shortcomings of the individual components and made them suitable as a visible light-active, highly efficient, standalone photocatalyst material that can degrade RhB.
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Affiliation(s)
- Radheshyam Rama Pawar
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan; Ashapura International Limited, Survey No. 256/3, Village Baraya, Bhuj-Mundra Highway, Mundra, Kutch, Gujarat, 370-415, India.
| | - Chitiphon Chuaicham
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Karthikeyan Sekar
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan; Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
| | - Keiko Sasaki
- Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, 819-0395, Japan.
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Wang F, Hao M, Liang J, Gao P, Zhu M, Fang B, Zhang H, Shang Z. A facile fabrication of sepiolite mineral nanofibers with excellent adsorption performance for Cd2+ ions. RSC Adv 2019; 9:40184-40189. [PMID: 35542660 PMCID: PMC9076242 DOI: 10.1039/c9ra07836c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/22/2019] [Indexed: 11/21/2022] Open
Abstract
In this work, sepiolite mineral nanofibers are facilely prepared by a microwave-hydrogen peroxide method, and the bulk densities of the samples are adopted to evaluate the defibering effect.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Ming Hao
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Jinsheng Liang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Peizhang Gao
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Maomao Zhu
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Baizeng Fang
- Department of Chemical & Biological Engineering
- University of British Columbia
- Vancouver
- Canada
| | - Hui Zhang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
| | - Zengyao Shang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information
- Hebei University of Technology
- Ministry of Education
- Tianjin 300130
- China
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Sepiolite and sepiolite-bound humic acid interactions in alkaline media and the mechanism of the formation of sepiolite-humic acid complexes. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.minpro.2017.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ngulube T, Gumbo JR, Masindi V, Maity A. An update on synthetic dyes adsorption onto clay based minerals: A state-of-art review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 191:35-57. [PMID: 28086140 DOI: 10.1016/j.jenvman.2016.12.031] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/08/2016] [Accepted: 12/12/2016] [Indexed: 05/25/2023]
Abstract
Dyes are growing to be a problematic class of pollutants to the environment. The disposal of dyes in water resources has bad aesthetic and health effects, hence the need to remove them from the environment. The need for treatment methods that are effective and low in price is rising hence a lot of research interest is being diverted towards adsorbents that are cheap, preferable naturally occurring materials like clays. In most reported dye adsorption studies, limited information on the relationship between characterization results with adsorbent performance on dye removal has been given. This review article seeks to report on the link between the adsorption characteristics of the clays and their adsorption capacities and to gather information on the modifications done on clays to improve their adsorption capacities. A critical analysis of the different mechanisms involved during the decolouration process and their application for dye removal has been discussed in detail in this up-to-date review. From a wide range of consulted literature review, it is evident that some clays have appreciable adsorption capacities on top of being widely available. It was also noted that several parameters like contact time, dosage, concentration, temperature and pH affect the removal of dyes. Furthermore, the application of clay minerals for decolourising water represents economic viable and locally available materials that can be used substantially for pollution control and management. Conclusions were also drawn and suggestions for future research perspectives are proposed.
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Affiliation(s)
- Tholiso Ngulube
- Department of Ecology and Resources Management, University of Venda, Private Bag X5050, Thohoyandou, 0950, Limpopo, South Africa.
| | - Jabulani Ray Gumbo
- Department of Hydrology and Water Resources, School of Environmental Sciences, University of Venda, Private Bag X5050, Thohoyandou, 0950, Limpopo, South Africa
| | - Vhahangwele Masindi
- Council of Scientific and Industrial Research (CSIR), Building Science and Technology (BST), Built Environment, P.O Box 395, Pretoria, 0001, South Africa; Department of Environmental Sciences, School of Agriculture and Environmental Sciences, University of South Africa (UNISA), P. O. Box 392, Florida, 1710, South Africa
| | - Arjun Maity
- Smart Polymers Group, Polymers and Composites, Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa
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Fayazi M, Afzali D, Taher M, Mostafavi A, Gupta V. Removal of Safranin dye from aqueous solution using magnetic mesoporous clay: Optimization study. J Mol Liq 2015. [DOI: 10.1016/j.molliq.2015.09.045] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Moayedi H, Kazemian S, Kassim KA, Nazir R, Raftari M. Removal of Suspended Colloids through the Control of Their Zeta Potential. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2012.738113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Moayedi H, Kazemian S. Zeta Potentials of Suspended Humus in Multivalent Cationic Saline Solution and Its Effect on Electro-Osomosis Behavior. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2011.646601] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Padilla-Ortega E, Leyva-Ramos R, Mendoza-Barron J, Guerrero-Coronado R, Jacobo-Azuara A, Aragon-Piña A. Adsorption of Heavy Metal Ions from Aqueous Solution onto Sepiolite. ADSORPT SCI TECHNOL 2011. [DOI: 10.1260/0263-6174.29.6.569] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- E. Padilla-Ortega
- Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Quimicas Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava No. 6, San Luis Potosi, SLP 78210, Mexico
| | - R. Leyva-Ramos
- Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Quimicas Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava No. 6, San Luis Potosi, SLP 78210, Mexico
| | - J. Mendoza-Barron
- Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Quimicas Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava No. 6, San Luis Potosi, SLP 78210, Mexico
| | - R.M. Guerrero-Coronado
- Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Quimicas Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava No. 6, San Luis Potosi, SLP 78210, Mexico
| | - A. Jacobo-Azuara
- División de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Unidad Noria Alta, Col. Noria Alta S/N, 36500, México
| | - A. Aragon-Piña
- Centro de Investigacion y Estudios de Posgrado, Facultad de Ciencias Quimicas Universidad Autonoma de San Luis Potosi, Av. Dr. Manuel Nava No. 6, San Luis Potosi, SLP 78210, Mexico
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Tunç S, Duman O, Uysal R. Electrokinetic and rheological behaviors of sepiolite suspensions in the presence of poly(acrylic acid sodium salt)s, polyacrylamides, and poly(ethylene glycol)s of different molecular weights. J Appl Polym Sci 2008. [DOI: 10.1002/app.28245] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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