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Subramanium R, Sathiyamoorthi E, Rajagopal S, Krishnamoorthy R, Lee J, A LK. Synthesis, characterization, and evaluation of fluoride removal capacity of calcium-impregnated Euphorbia neriifolia carbon (Ca-Enc). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-31943-9. [PMID: 38244161 DOI: 10.1007/s11356-024-31943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024]
Abstract
Fluoride ions must be removed from drinking water in order to prevent fluorosis. Many conventional techniques have been examined for the defluoridation of water all over the world. As far as fluoride ions are concerned, adsorption is the most promising method for the removal of them from aqueous environments. In the present study, we aim to find out how well Euphorbia neriifolia plants can remove fluoride from water using activated and carbonized adsorbents. The Euphorbia neriifolia plant stem was pulverized, dried, and activated using calcium ions extracted from used eggshells collected nearby. The synthesized adsorbent material before and after adsorption of fluoride ions was systematically characterized using FTIR, XRD, SEM with EDAX, TGA, and zero-point charge. The defluoridation capacity of the as-prepared adsorbent material was investigated using batch adsorption studies. Various influencing factors such as contact time, solution pH, initial fluoride concentration, mass of the adsorbent, temperature, and co-existing ions were systematically investigated towards the removal of fluoride ion on prepared adsorbent material. This study was conducted to identify the optimal conditions of prepared adsorbent for the maximum removal of fluoride ions from aqueous solution. A groundwater sample with fluoride content of more than 1.5 ppm was taken and studied in this present work. A basic quality indicator of the synthesized material was examined, and its ability to remove fluoride was determined. The findings provide insight into the selective elimination of fluoride ions from aqueous environment.
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Affiliation(s)
- Rajkumar Subramanium
- Department of Chemistry, SRM Madurai College for Engineering and Technology, Pottapalayam, Sivagangai, 630612, Tamil Nadu, India.
| | | | - Saravanakumar Rajagopal
- Department of Chemistry, Sethu Institute Technology, Viruthunagar, 626115, Tamil Nadu, India
| | | | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Lakshman Kumar A
- Corrosion Analysis and Research Lab, NTPC Energy Technology Research Alliance (NTPC NETRA), Greater Noida, UP, India
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2
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Chen Y, Yu W, Cao H. Arginine-Functionalized Thin Film Composite Forward Osmosis Membrane Integrating Antifouling and Antibacterial Effects. MEMBRANES 2023; 13:760. [PMID: 37755182 PMCID: PMC10534298 DOI: 10.3390/membranes13090760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/16/2023] [Accepted: 08/20/2023] [Indexed: 09/28/2023]
Abstract
Membrane fouling is an inevitable obstacle of polyamide composite forward osmosis (FO) membranes in oily wastewater treatment. In this study, zwitterionic arginine (Arg) is grafted onto nascent self-made FO polyamide poly(ether sulfone) (PA-PES) membrane, imparting superior hydrophilic, antifouling, and antibacterial properties to the membrane. Detailed characterizations revealed that the Arg-modified (Arg-PES) membrane presented obviously surface positively charged and unique morphology. Results showed that our strategy endowed the optimized membrane, the water flux increased by 113.2% compared to the pristine membrane, respectively, meanwhile keeping high NaCl rejection > 93.9% (with DI water as feed solution and 0.5 M NaCl as draw solution, FO mode). The dynamic fouling tests indicated that the Arg-PES membranes exhibited much improved antifouling performance towards oily wastewater treatment. The flux recovery ratios of the membrane were as high as 92.0% for cationic emulsified oil (cetyl pyridinium chloride, CPC), 87.0% for neutral emulsified oil (Tween-80), and 86.0% for anionic emulsified oil (sodium dodecyl sulfate, SDS) after washing, respectively. Meanwhile, the Arg-PES membranes assembled with guanidine cationic groups exhibited an enhanced antibacterial property against E. coli, which exhibited a high antibacterial efficiency of approximately 96%. Consequently, the newly arginine functionalized FO membrane possesses impressive antifouling performance, while simultaneously resisting bacterial invasion, thus rendering it an ideal alternative for oily wastewater treatment in the FO process.
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Affiliation(s)
- Yichen Chen
- School of Environment, Renmin University of China, Beijing 100872, China;
| | - Wenmeng Yu
- Rural Energy & Environment Agency, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Beijing 100125, China
| | - Hu Cao
- School of Environment, Renmin University of China, Beijing 100872, China;
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3
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Wujcicki Ł, Mańdok T, Budzińska-Lipka W, Pawlusińska K, Szozda N, Dudek G, Piotrowski K, Turczyn R, Krzywiecki M, Kazek-Kęsik A, Kluczka J. Cerium(IV) chitosan-based hydrogel composite for efficient adsorptive removal of phosphates(V) from aqueous solutions. Sci Rep 2023; 13:13049. [PMID: 37567895 PMCID: PMC10421956 DOI: 10.1038/s41598-023-40064-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
The excess presence of phosphate(V) ions in the biosphere is one of the most serious problems that negatively affect aqueous biocenosis. Thus, phosphates(V) separation is considered to be important for sustainable development. In the presented study, an original cerium(IV)-modified chitosan-based hydrogel (Ce-CTS) was developed using the chemical co-precipitation method and then used as an adsorbent for efficient removal of phosphate(V) ions from their aqueous solutions. From the scientific point of view, it represents a completely new physicochemical system. It was found that the adsorptive removal of phosphate(V) anions by the Ce-CTS adsorbent exceeded 98% efficiency which is ca. 4-times higher compared with the chitosan-based hydrogel without any modification (non-cross-linked CTS). The best result of the adsorption capacity of phosphates(V) on the Ce-CTS adsorbent, equal to 71.6 mg/g, was a result of adsorption from a solution with an initial phosphate(V) concentration 9.76 mg/dm3 and pH 7, an adsorbent dose of 1 g/dm3, temperature 20 °C. The equilibrium interphase distribution data for the Ce-CTS adsorbent and aqueous solution of phosphates(V) agreed with the theoretical Redlich-Peterson and Hill adsorption isotherm models. From the kinetic point of view, the pseudo-second-order model explained the phosphates(V) adsorption rate for Ce-CTS adsorbent the best. The specific effect of porous structure of adsorbent influencing the diffusional mass transfer resistances was identified using Weber-Morris kinetic model. The thermodynamic study showed that the process was exothermic and the adsorption ran spontaneously. Modification of CTS with cerium(IV) resulted in the significant enhancement of the chitosan properties towards both physical adsorption (an increase of the point of zero charge of adsorbent), and chemical adsorption (through the presence of Ce(IV) that demonstrates a chemical affinity for phosphate(V) anions). The elaborated and experimentally verified highly effective adsorbent can be successfully applied to uptake phosphates(V) from aqueous systems. The Ce-CTS adsorbent is stable in the conditions of the adsorption process, no changes in the adsorbent structure or leaching of the inorganic filling were observed.
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Affiliation(s)
- Łukasz Wujcicki
- Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Tomasz Mańdok
- Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Wiktoria Budzińska-Lipka
- Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Karolina Pawlusińska
- Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Natalia Szozda
- Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Gabriela Dudek
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
| | - Krzysztof Piotrowski
- Department of Chemical Engineering and Process Design, Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 7, 44-100, Gliwice, Poland
| | - Roman Turczyn
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Ks. M. Strzody 9, 44-100, Gliwice, Poland
- Centre for Organic and Nanohybrid Electronics, Silesian University of Technology, Konarskiego 22B, 44-100, Gliwice, Poland
| | - Maciej Krzywiecki
- Institute of Physics - Centre for Science and Education, Silesian University of Technology, Konarskiego 22B, 44-100, Gliwice, Poland
| | - Alicja Kazek-Kęsik
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100, Gliwice, Poland
| | - Joanna Kluczka
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100, Gliwice, Poland.
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Hu QH, Tang DY, Xiang YL, Chen X, Lin J, Zhou QH. Magnetic ion-imprinted polyacrylonitrile-chitosan electro-spun nanofibrous membrane as recyclable adsorbent with selective heavy metal removal and antibacterial fouling in water treatment. Int J Biol Macromol 2023; 241:124620. [PMID: 37119910 DOI: 10.1016/j.ijbiomac.2023.124620] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/12/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
Water pollution has become one of the most concerned environmental issues on the worldwide scale. Due to the harmfulness of the heavy metal ions and microorganisms in wastewater, novel filtration membranes for water treatment are expected to simultaneously clear these pollutants. Herein, the electro-spun polyacrylonitrile (PAN) based magnetic ion-imprinted membrane (MIIM) were fabricated to achieve both selective removal of Pb(II) ions and excellent antibacterial efficiency. The competitive removal experiments showed that the MIIM displayed efficiently selective removal of Pb(II) (45.4 mg·g-1). Pseudo-second-order mode and Langmuir isotherm equation is well matched with the equilibrium adsorption. The MIIM showed sustained removal performance (~79.0 %) against Pb(II) ions after 7 adsorption-desorption cycles with negligible Fe ions loss of 7.3 %. Moreover, the MIIM exhibited excellent antibacterial properties that >90 % of E. coli and S. aureus were killed by the MIIM. In conclusion, the MIIM provides a novel technological platform for integration of multi-function with selective metal ions removal, excellent cycling reusability, and enhanced antibacterial fouling property, which can be potentially utilized as a promising adsorbent in actual treatment of polluted water.
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Affiliation(s)
- Qiu-Hui Hu
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - De-Yu Tang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Ya-Li Xiang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Xiao Chen
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China
| | - Juan Lin
- School of Biomedical Sciences and Technology, Chengdu Medical College, Xindu Road No.783, Chengdu, Sichuan 610500, China.
| | - Qing-Han Zhou
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, First Ring Road, 4th Section No.16, Chengdu, Sichuan 610041, China; Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China.
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5
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Maiti A, Halder A, Dinda S, Pahari G, Ghoshal D. Construction of four new d10 metal ion coordination polymers: Synthesis, characterization and structural diversity. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Ferreira RM, Campista ALDM, Stapelfeldt DMA, Moreira MDFR. Emulsified oil separation by bioadsorption: a sustainable proposal. ENVIRONMENTAL TECHNOLOGY 2022; 43:696-708. [PMID: 32713267 DOI: 10.1080/09593330.2020.1801852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Oil emulsions are very stable, so both the treatment and the recovery of marine oil spills require expensive technologies, sometimes inefficient. Thus, studies of alternative methods for the treatment of oily effluents and phytoremediation are very important for sustainable development. The objective of this study was to use a chemically modified biomass of Salvinia sp. (SOH), for the removal of oil from oil-in-water emulsions. Initially, a chemical modification was carried out to remove interferences and to increase the adsorption capacity of the biomass. Physicochemical characterization tests were performed to understand the structure of the adsorbent produced as well as to verify changes going on the surface of the material. Adsorption tests were done, such as concentration variation, time, temperature and pH. The maximum adsorption capacity (qmax) of SOH was obtained in 15 min and was 574.86 mg g-1 in oil-in-salt water emulsion and 525.92 mg g-1, for oil-in-water emulsion. The isotherm model that best fitted was Freundlich model and for the kinetic model, the best fit was obtained with the intraparticle diffusion model. Thermodynamic studies indicate that SOH has physisorption, and the process is spontaneous and reversible.
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Affiliation(s)
- Rachel M Ferreira
- National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | | | - Maria de F R Moreira
- National School of Public Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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7
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Huang Z, Luo X, Mi Y, Wu G, Wang C, Liu L, Ye F, Luo Y. Magnetic recyclable carbon nanotubes and its demulsification performance in oily wastewater. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2020.1808899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zhiming Huang
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, P.R. China
- Production Optimization, China Oilfield Serv Ltd, Tianjin, P.R China
| | - Xiao Luo
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, P.R. China
| | - Yuanzhu Mi
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, P.R. China
| | - Guang Wu
- Production Optimization, China Oilfield Serv Ltd, Tianjin, P.R China
| | - Chunlin Wang
- Production Optimization, China Oilfield Serv Ltd, Tianjin, P.R China
| | - Lei Liu
- Production Optimization, China Oilfield Serv Ltd, Tianjin, P.R China
| | - Fan Ye
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, P.R. China
| | - Yue Luo
- School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, P.R. China
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8
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Ultrasonic aided sorption of oil from oil-in-water emulsion onto oleophilic natural organic-silver nanocomposite. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2020.10.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Mohammed TJ, Al-Zuheri HA. Enhancing Oily Wastewater Treatment in Petroleum Industry Using Magnetite Nanoparticles. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-04713-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Liu J, Wang S, Xu K, Fan Z, Wang P, Xu Z, Ren X, Hu S, Gao Z. Fabrication of double crosslinked chitosan/gelatin membranes with Na+ and pH dual-responsive controlled permeability. Carbohydr Polym 2020; 236:115963. [DOI: 10.1016/j.carbpol.2020.115963] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/05/2020] [Accepted: 02/05/2020] [Indexed: 01/12/2023]
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11
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Yau XH, Khe CS, Mohamed Saheed MS, Lai CW, You KY, Tan WK. Magnetically recoverable magnetite-reduced graphene oxide as a demulsifier for surfactant stabilized crude oil-in-water emulsion. PLoS One 2020; 15:e0232490. [PMID: 32353051 PMCID: PMC7192466 DOI: 10.1371/journal.pone.0232490] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/15/2020] [Indexed: 11/30/2022] Open
Abstract
Oily wastewater, especially water-oil emulsion has become serious environmental issue and received global attention. Chemical demulsifiers are widely used to treat oil-water emulsion, but the toxicity, non-recyclable and non-environmental friendly characteristic of chemical demulsifiers had limited their practical application in oil-water separation. Therefore, it is imperative to develop an efficient, simple, eco-friendly and recyclable demulsifiers for breaking up the emulsions from the oily wastewater. In this study, a magnetic demulsifier, magnetite-reduced graphene oxide (M-rGO) nanocomposites were proposed as a recyclable demulsifier to break up the surfactant stabilized crude oil-in-water (O/W) emulsion. M-rGO nanocomposites were prepared via in situ chemical synthesis by using only one type Fe salt and GO solid as precursor at room temperature. The prepared composites were fully characterized by various techniques. The effect of demulsifier dosage and pH of emulsion on demulsification efficiency (ED) has been studied in detailed. The demulsification mechanism was also proposed in this study. Results showed that M-rGO nanocomposites were able to demulsify crude O/W emulsion. The ED reaches 99.48% when 0.050 wt.% of M-rGO nanocomposites were added to crude O/W emulsion (pH = 4). Besides, M-rGO nanocomposites can be recycled up to 7 cycles without showing a significant change in terms of ED. Thus, M-rGO nanocomposite is a promising demulsifier for surfactant stabilized crude O/W emulsion.
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Affiliation(s)
- Xin Hui Yau
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar,Perak, Malaysia
| | - Cheng Seong Khe
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar,Perak, Malaysia
| | - Mohamed Shuaib Mohamed Saheed
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, Malaysia
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar,Perak, Malaysia
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre (NANOCAT), Institute for Advanced Studies (IAS), University of Malaya, Kuala Lumpur, Malaysia
| | - Kok Yeow You
- Department of Communication Engineering, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Wai Kian Tan
- Institute of Liberal Arts and Sciences, Toyohashi University of Technology, Toyohashi, Aichi, Japan
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12
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Scheverín N, Fossati A, Horst F, Lassalle V, Jacobo S. Magnetic hybrid gels for emulsified oil adsorption: an overview of their potential to solve environmental problems associated to petroleum spills. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:861-872. [PMID: 31814073 DOI: 10.1007/s11356-019-06752-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
Hydrogels (HGs) based on gelatin and crosslinked with gum Arabic have been prepared by the thaw-freezing method, employing two different concentrations of gum Arabic (15 and 50% w/w). Magnetic gels or ferrogels (FGs) were prepared by applying the breath in method to incorporate iron oxide magnetic nanoparticles to the HG matrix. The obtained HG and FG were characterized by XRD, FTIR, and SEM, and the FG composition was estimated by atomic absorption spectroscopy in terms of Fe content. The adsorption of crude oil onto HG and FG was explored achieving very satisfactory results. FG was regenerated by washing with toluene, maintaining efficiency of almost 90% after the fourth cycle. Equilibrium studies were performed to determine the capacity of the prepared FG for adsorption of crude oil from seawater synthetic solutions. The experiments were carried out as a function of different initial concentrations of oil residue (24 to 240 mg/L) exploring different contact times. Equilibrium data were found to fit very well with the Sips models. The kinetic data adsorption of oil onto the FG-15 was better fitted by a pseudo-second-order kinetic indicating that at the initial stages of adsorption, external mass transfer could control the whole rate of the crude oil uptake while intraparticle diffusion controlled the global rate of adsorption at later stages. The obtained results showed that the FG prepared by employing 15% of gum Arabic as the crosslinker (FG-15) has a high removal efficiency of crude oil reaching 1.53 g/g of FG at pH 5.5 and 0.59 g/g for oil/water emulsions in the order of 0.1 g/L. The magnetic properties extend its application. The reached data suggest that the materials presented here may be useful to further the design of systems or devices intended for the remediation of petroleum spills and/or its derivatives in marine water as well as other surfaces such as polluted rocks or soil.
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Affiliation(s)
- Natalia Scheverín
- Instituto de Química del Sur (INQUISUR), Departamento de Química, Universidad Nacional del Sur, CONICET, Avda. Alem 1235, (B8000CPB), Bahía Blanca, Bs. As., Argentina
| | - Ana Fossati
- División Química de Materiales Magnéticos de Aplicación a la Ingeniería (DiQuiMMAI), Facultad de Ingeniería, UBA INTECIN-CONICET, Buenos Aires, Argentina
| | - Fernanda Horst
- Instituto de Química del Sur (INQUISUR), Departamento de Química, Universidad Nacional del Sur, CONICET, Avda. Alem 1235, (B8000CPB), Bahía Blanca, Bs. As., Argentina
| | - Verónica Lassalle
- Instituto de Química del Sur (INQUISUR), Departamento de Química, Universidad Nacional del Sur, CONICET, Avda. Alem 1235, (B8000CPB), Bahía Blanca, Bs. As., Argentina.
| | - Silvia Jacobo
- División Química de Materiales Magnéticos de Aplicación a la Ingeniería (DiQuiMMAI), Facultad de Ingeniería, UBA INTECIN-CONICET, Buenos Aires, Argentina
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Karthikeyan P, Meenakshi S. In-situ fabrication of cerium incorporated chitosan-β-cyclodextrin microspheres as an effective adsorbent for toxic anions removal. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.enmm.2019.100272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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14
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Removal of oil emulsion from aqueous solution by using Ricinus communis leaves as adsorbent. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0970-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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15
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Thermoresponsive polymer brushes on magnetic chitosan microspheres: Synthesis, characterization and application in oily water of high salinity. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Hesas RH, Baei MS, Rostami H, Gardy J, Hassanpour A. An investigation on the capability of magnetically separable Fe 3O 4/mordenite zeolite for refinery oily wastewater purification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 241:525-534. [PMID: 30301659 DOI: 10.1016/j.jenvman.2018.09.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/17/2018] [Accepted: 09/02/2018] [Indexed: 05/27/2023]
Abstract
Damage to the water resources and environment as a consequence of oil production and use of fossil fuels, has increased the need for applying various technologies and developing effective materials to remove contaminates from oily wastewaters resources. One of the challenges for an economic industrial wastewater treatment is separation and reusability of the developed purifying agents. Development of magnetic materials could potentially facilitate easier and more economic separation of purifying agents. Therefore, herein we have synthesised an efficient and easily recyclable Fe3O4/mordenite zeolite using a hydrothermal process to investigate its purification capability for wastewater from Kermanshah oil refinery. The synthesised Fe3O4/mordenite zeolite was characterised using XRD, FTIR, SEM, EDX, XRF and BET analysis. XRD result showed that the synthesised Fe3O4/mordenite zeolite comprised sodium aluminium silicate hydrate phase [01-072-7919, Na8(Al6Si30O72)(H2O)9.04] and cubic iron oxide phase [04-013-9808, Fe3O4]. Response Surface Method (RSM) combined with Central Composite Design (CCD) was used to identify the optimum operation parameters of the pollutant removal process. The effect of pH, contact time and Fe3O4/mordenite zeolite amount on the Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD) and Nephelometric Turbidity Unit (NTU) were investigated. It was found that pH was the most significant factor influencing COD and BOD removal but the quantity of Fe3O4/mordenite zeolite was the most influential factor on the turbidity removal capacity. The optimum removal process conditions were identified to be pH of 7.81, contact time of 15.8 min and Fe3O4/mordenite zeolite amount of 0.52% w/w. The results show that the regenerated Fe3O4/mordenite zeolite can be reused for five consecutive cycles in purification of petroleum wastes.
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Affiliation(s)
| | - Mazyar Sharifzadeh Baei
- Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.
| | - Hadi Rostami
- Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
| | - Jabbar Gardy
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Ali Hassanpour
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
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17
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Banu HT, Karthikeyan P, Meenakshi S. Zr 4+ ions embedded chitosan-soya bean husk activated bio-char composite beads for the recovery of nitrate and phosphate ions from aqueous solution. Int J Biol Macromol 2019; 130:573-583. [PMID: 30797805 DOI: 10.1016/j.ijbiomac.2019.02.100] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/22/2019] [Accepted: 02/16/2019] [Indexed: 11/15/2022]
Abstract
Removal of nitrate and phosphate ions using Zr4+ ions embedded chitosan-soya bean husk activated bio-char composite beads (Zr-CS-SAC) was carried out by batch mode to overcome the environmental problems due to eutrophication. The adsorbent was well characterized by using Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) analysis with energy dispersive X-ray analyzer (EDX), X-ray diffraction analysis (XRD), Brunauer-Emmett-Teller surface analyzer (BET), thermo-gravimetric analysis (TGA) and differential thermal analysis (DTA) etc. The adsorption equilibrium models of Langmuir, Freundlich and D-R isotherms were evaluated and the results described that the Freundlich model was the best for both the adsorbates of nitrate and phosphates ions with respective capacities of 90.09 and 131.29 mg g-1 at 30 °C. Studies on thermodynamic parameters revealed the endothermic and spontaneous nature of the adsorption. Different kinetic models were studied and found that pseudo-second-order kinetic data were well fitted for adsorption process. These results suggested that Zr-CS-SAC composite beads as a promising adsorbent for the removal of nitrate and phosphate ions from water with good removal efficiency, adsorbability, recyclability and non- toxicity.
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Affiliation(s)
- H Thagira Banu
- Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University, Gandhigram 624 302, Tamil Nadu, India
| | - P Karthikeyan
- Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University, Gandhigram 624 302, Tamil Nadu, India
| | - Sankaran Meenakshi
- Department of Chemistry, The Gandhigram Rural Institute-Deemed to be University, Gandhigram 624 302, Tamil Nadu, India.
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18
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Kluczka J, Dudek G, Kazek-Kęsik A, Gnus M. Chitosan Hydrogel Beads Supported with Ceria for Boron Removal. Int J Mol Sci 2019; 20:ijms20071567. [PMID: 30925788 PMCID: PMC6479674 DOI: 10.3390/ijms20071567] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 12/23/2022] Open
Abstract
In this study, a chitosan hydrogel supported with ceria (labelled Ce-CTS) was prepared by an encapsulation technique and used for the efficient removal of excess B(III) from aqueous solutions. The functionalisation of chitosan with Ce(IV) and the improvement in the adsorptive behaviour of the hydrogel were determined by SEM-EDS, FTIR, XRD, and inductively coupled plasma optical emission spectrometer (ICP-OES) analyses and discussed. The results demonstrate that Ce-CTS removes boric acid from aqueous solutions more efficiently than either cerium dioxide hydrate or raw chitosan beads, the precursors of the Ce-CTS biosorbent. The maximum adsorption capacity of 13.5 ± 0.9 mg/g was achieved at pH 7 after 24 h. The equilibrium data of boron adsorption on Ce-CTS fitted the Freundlich isotherm model, while the kinetic data followed the Elovich pseudo-second-order model, which indicated that the process was non-homogeneous. The dominant mechanism of removal was the reaction between boric acid molecules and hydroxyl groups bound to the ceria chelated by chitosan active centres. Due to its high efficiency in removing boron, good regeneration capacity and convenient form, Ce-CTS may be considered a promising biosorbent in water purification.
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Affiliation(s)
- Joanna Kluczka
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Gabriela Dudek
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, ks. M. Strzody 9, 44-100 Gliwice, Poland.
| | - Alicja Kazek-Kęsik
- Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Małgorzata Gnus
- Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, ks. M. Strzody 9, 44-100 Gliwice, Poland.
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Wang L, Li J, Wang J, Guo X, Wang X, Choo J, Chen L. Green multi-functional monomer based ion imprinted polymers for selective removal of copper ions from aqueous solution. J Colloid Interface Sci 2019; 541:376-386. [PMID: 30710820 DOI: 10.1016/j.jcis.2019.01.081] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/19/2019] [Accepted: 01/21/2019] [Indexed: 10/27/2022]
Abstract
Green ion imprinted polymers (IIPs) were prepared in aqueous phase via the synergy of three functional monomers of low-cost eco-friendly gelatin (G), 8-hydroxyquinoline (HQ) and chitosan (C), namely G-HQ-C IIPs, and were applied as an effective and recyclable adsorbent to remove Cu(II) from aqueous solution. The as-prepared G-HQ-C IIPs were systematically characterized, and several major factors affecting adsorption capacity including solution pH, temperature and contact time were investigated in detail. The adsorption of Cu(II) on G-HQ-C IIPs followed the pseudo-second-order kinetic and Langmuir isotherm models, and the adsorption capacity increased with temperature increase. Moreover, the maximum adsorption capacities of G-HQ-C IIPs toward Cu(II) reached up to 111.81 mg/g at room temperature, much higher than those of most of the reported adsorbents for Cu(II). The G-HQ-C IIPs displayed excellent selectivity against seven common divalent ions with selectivity coefficients above 18.71, as well as high anti-interference ability. Additionally, a good reusability was demonstrated without significant loss in adsorption capacity after at least ten cycles. The IIPs were applied to environmental water samples for selective removal of Cu(II) with satisfactory results. By replacing Cu(II) template by Cd(II), Hg(II) and Pb(II), respectively, the obtained three kinds of IIPs based on G-HQ-C presented convincing imprinting properties, and therefore the work could provide a simple and general imprinting strategy toward various concerned heavy metal ions through multi-point interactions from multiple functional monomers.
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Affiliation(s)
- Liyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Polymer Chemistry, Yantai Engineering & Technology College, Yantai 264006, China
| | - Jinhua Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Jianan Wang
- School of Civil Engineering, Yantai University, Yantai 264005, China
| | - Xiaotong Guo
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyan Wang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China
| | - Jaebum Choo
- Department of Chemistry, Chung-Ang University, Seoul 06974, South Korea.
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China.
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20
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Zhang L, Yang L, Xu Y, Chang G. Renewable 4-HIF/NaOH aerogel for efficient methylene blue removal via cation–π interaction induced electrostatic interaction. RSC Adv 2019; 9:29772-29778. [PMID: 35531533 PMCID: PMC9071979 DOI: 10.1039/c9ra04166d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/23/2019] [Indexed: 12/20/2022] Open
Abstract
A novel porous organic material 4-hydroxyindole-formaldehyde/NaOH (4-HIF/NaOH) aerogel was prepared via a facile polymerization, soaking in NaOH aqueous solution and ambient drying method. 4-HIF/NaOH aerogel porous polymer networks with high surface area have been applied as efficient adsorbents to remove methylene blue from wastewater via synergistic effects of cation–π interaction induced electrostatic interaction, electrostatic interaction and π–π interaction. The adsorption capacity calculated by adsorption isotherms at 303 K was 1016.9 mg g−1 which is higher than those observed for methylene blue on other aerogels and most other materials. Furthermore, the methylene blue loaded 4-HIF aerogel can easily be regenerated with 0.1 M HCl solution and ethanol wash, retaining over 75% of the adsorption capacity after recycling five times. A novel porous organic material 4-hydroxyindole-formaldehyde/NaOH (4-HIF/NaOH) aerogel was prepared via a facile polymerization, soaking in NaOH aqueous solution and ambient drying method.![]()
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Affiliation(s)
- Longfei Zhang
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- P. R. China
| | - Li Yang
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- P. R. China
| | - Yewei Xu
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- P. R. China
| | - Guanjun Chang
- State Key Laboratory of Environment-friendly Energy Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang
- P. R. China
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