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Sangkarak S, Kittipongvises S, Kitkaew D, Chaveanghong S, Ittisupornrat S, Phetrak A, Lohwacharin J. Influence of the iron-oxide mass fractions of magnetic powdered activated carbon on its hexavalent chromium adsorption performance in water. CHEMOSPHERE 2024; 364:142997. [PMID: 39097106 DOI: 10.1016/j.chemosphere.2024.142997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 07/18/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
Magnetic powdered activated carbon (Mag-PAC) is an effective adsorbent to remove hexavalent chromium (Cr(VI)) from water and can be recovered for reuse. However, the tradeoff between the adsorption performance of Cr(VI) and magnetic properties of Mag-PAC remains unclear. Herein, we prepared a series of Mag-PAC adsorbents containing various iron-oxide mass fractions with FeSO4·7H2O as the precursor, using a facile wet-chemical precipitation route and conducted batch experiments to evaluate the Cr(VI) adsorption performance. Results revealed that Mag-PAC was functionalized by magnetic iron oxide comprising crystalline goethite and magnetite structures. Furthermore, its adsorption performance was highly dependent on pH and was most effective at an initial solution pH of 2. Both the sorption rate constant and Cr(VI) adsorption capacity were greatly influenced by magnetization, and they gradually decreased as the iron-oxide mass fraction increased. Among the prepared adsorbents, Mag-PAC-75 (∼32% wt iron) exhibited not only an excellent Cr(VI) adsorption performance (Langmuir adsorption capacity: 75.76 mg/g) but also effective magnetic properties (saturation magnetization: 9.66 emu/g). Coexisting anions had a negligible competitive effect on Cr(VI) removal by Mag-PAC-75 at an initial pH of 2, whereas the presence of tannic acid markedly improved the Cr(VI) elimination. The presence of trivalent chromium on the surface of Mag-PAC-75 confirmed via X-ray photoelectron spectroscopy indicated that some synergistic redox reactions may occur during the sorption process. After five regeneration cycles using NaOH, Mag-PAC-75 continued to exhibit a high Cr(VI) removal efficiency and magnetic stability. These findings indicate that optimizing the adsorption performance and magnetic properties is a key factor for realizing the practical application of Mag-PAC for Cr(VI) removal. Overall, Mag-PAC may have been a promising application prospect for Cr(VI) removal from water due to its high adsorption capacity and magnetic properties, coupled with its good reusability and magnetic stability after regeneration cycles.
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Affiliation(s)
- Sirirat Sangkarak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | - Duangta Kitkaew
- Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Bangkok, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Thailand
| | - Suwilai Chaveanghong
- Mahidol University Frontier Research Facility (MU-FRF), Mahidol University, 999 Phuttamonthon Sai 4 Rd, Salaya, Nakhon Pathom, Thailand
| | - Suda Ittisupornrat
- Climate Change and Environment Research Center, Department of Climate Change and Environment, Pathumthani, Thailand
| | - Athit Phetrak
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
| | - Jenyuk Lohwacharin
- Department of Environmental and Sustainable Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
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Faiz F, Pan YF, Zhang S, Dai J, Qiao JQ, Lian HZ, Mao L, Cui XB. A novel zwitterionic magnetic nanocomposite developed for non-invasive speciation analysis of inorganic chromium. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134860. [PMID: 38861901 DOI: 10.1016/j.jhazmat.2024.134860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 06/13/2024]
Abstract
3-(2-Aminoethylamino)propyltriethoxysilane and carboxyethylsilanetriol sodium salt were grafted on silica-coated Fe3O4 nanoparticles via sol-gel process to prepare novel amine- and carboxyl-bifunctionalized magnetic nanocomposites (SMNPs-(NH2 + COOH)). After well characterized, this doubly functionalized material was used as magnetic solid-phase extraction (MSPE) adsorbent to separate and enrich inorganic chromium species followed by inductively coupled plasma-mass spectrometry detection. The optimization of MSPE operation parameters including pH was conducted. It is reasonably elucidated that the adsorption mechanisms of zwitterionic SMNPs-(NH2 + COOH) towards chromium species are electrostatic and/or coordination interactions. Cr(VI) and Cr(III) can be adsorbed around pH 3.0 and around 10.0 respectively with strong anti-interference ability not only from other co-existing ions but also from the two labile species each other, and eluted by dilute nitric acid solution. With a 15-fold enrichment factor, the limits of detection of Cr(VI) and Cr(III) were 0.008 and 0.009 μg L-1, respectively, profiting from the maximum adsorption capacities of 7.52 and 6.11 mg g-1. The just one magnetic extraction matrix based speciation scheme possesses excellent convenience and friendliness to Cr(VI) and Cr(III) without any oxidation or reduction prior to capture of these two species. This protocol has been successfully applied to the speciation analysis of inorganic chromium in real-world environmental water samples.
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Affiliation(s)
- Faisal Faiz
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China
| | - Yi-Fan Pan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China
| | - Sen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China
| | - Jinxia Dai
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China
| | - Jun-Qin Qiao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China
| | - Hong-Zhen Lian
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing 210023, China.
| | - Li Mao
- Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Xiao-Bing Cui
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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Venkatrajan G, Venkatesan J, Madankumar N, Nirmala, Pushparaju S. Effective chromium removal of metal anchored alginate-chitosan binary bio-composites. Int J Biol Macromol 2024; 264:130408. [PMID: 38417764 DOI: 10.1016/j.ijbiomac.2024.130408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 03/01/2024]
Abstract
Water is the most essential resource for the biotic and abiotic components of an ecosystem. Any change in the quality of this water may cause adverse impact on the ecosystem. Hexavalent chromium is one such important pollutant that gets exposed in the water mainly through anthropogenic processes. Adsorption is considered to be an effective, economic and easiest method for remediation of such pollutants. Amongst the innumerable adsorbents available, biopolymers fetch the interest due to its cost effectiveness, efficiency and biocompatibility. But, the mechanical strength and workability of such biopolymers makes it unfit to use as an adsorbent. To improve these drawbacks, synthesis of biopolymeric composites become the need of the hour. So, an attempt was made here to synthesize metal cross-linked binary bio-composites using Alginate and Chitosan polymer matrix. Synthesized bio-composites were characterised with the aid of FTIR, XPS, Thermal analysis, SEM with EDAX and subjected for hexavalent chromium removal from water. Analysis of variance (ANOVA) with 95 % confidence intervals was used to assess the significance of independent variables and their interactions. Adsorption studies were done using batch process and to achieve greater sorption, various influencing parameters were optimized one by one. While investigating one parameter, other parameters were kept unaltered. Optimization was done for the parameters like contact time, dosage of the adsorbent, pH of the medium and presence of co-ions. Contact time and dosage for all the composites was 30 mins and 0.1 g respectively. Amongst the composites, Zirconium loaded binary composite possess high sorption capacity of around 14.8 mg/g. While Calcium and Iron loaded composites exhibit sorption capacity of around 9.8 mg/g and 10.4 mg/g respectively. Presence of other co-ions in the medium doesn't affect the sorption process. Isothermal studies infer the adsorption follows Langmuir model and thermodynamic parameters concludes the endothermic and randomness of the adsorption. The bio-composites can be recycled and used upto three cycles. Field trial was conducted and the composites work well in such conditions.
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Affiliation(s)
- Gopalakannan Venkatrajan
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India.
| | - Janarthanan Venkatesan
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
| | - Natarajan Madankumar
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
| | - Nirmala
- PG & Research department of Chemistry, J.K.K. Nataraja College of Arts and Science, Komarapalayam, Namakkal, Tamil Nadu, India
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Nabavi SR, Seyednezhad SM, Shakiba M. Fabrication of Polyamide6/Polyaniline as an Effective Nano-web Membrane for Removal of Cr (VI) from Water and a Black Box Approach in Modeling of Adsorption Process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:85968-85985. [PMID: 37395880 DOI: 10.1007/s11356-023-28566-x] [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: 03/30/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Abstract
Chromium (Cr), as a highly toxic heavy metal ion, is still a severe environmental issue, although many research efforts have been put into its removal from water. Polyaniline (PANI), as a conductive polymer, demonstrated great capability in heavy metal adsorption due to its low cost, ease of synthesis, reversible redox behavior, and chemical stability. However, using PANI powder alone in heavy metal removal causes secondary pollution and aggregation in water. The PANI coating on a substrate could tackle this problem. In this study, polyaniline-coated polyamide6 (PA6/PANI) nano-web membrane was used for the removal of Cr(VI) in both adsorption and filtration-adsorption modes. The PA6/PANI nano-web membrane was fabricated via PA6 electrospinning followed by in-situ polymerization of the aniline monomer. The electrospinning condition of PA6 was optimized by the Taguchi method. The PA6/PANI nano-web membrane was characterized by FESEM, N2-adsorption/desorption, FT-IR, contact angle measurement, and tensile test. FT-IR and FESEM results demonstrated the successful synthesis of PA6/PANI nano-web and PANI homogeneous coating on PA6 nanofibers, respectively. The N2 adsorption/desorption results indicated that the pore volume of the PA6/PANI nano-web decreased by 39% compared to PA6 nanofibers. The tensile test and water contact angle studies showed that the coating of PANI on PA6 nanofibers improves the mechanical properties and hydrophilicity of PA6 by 10% and 25%, respectively. The application of PA6/PANI nano-web in the removal of Cr(VI) in batch and filtration modes exhibits excellent removal of 98.4 and 86.7%, respectively. A pseudo first order model well described the adsorption kinetics, and the adsorption isotherm was best fitted by the Langmuir model. A black box modeling approach based on artificial neural networks (ANN) was developed to predict the removal efficiency of the membrane. The superior performance of PA6/PANI in both adsorption and filtration-adsorption systems makes it a potential candidate for the removal of heavy metals from water on an industrial scale.
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Affiliation(s)
- Seyed Reza Nabavi
- Department of Applied Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
| | | | - Mohamadreza Shakiba
- Department of Applied Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran
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Andriayani, Marpongahtun, Muis Y, Pakpahan J, Daulay A. Stability of mesoporous silica using ricinoleic methyl ester as a template with the addition of HCl and application of Cd 2+ adsorption optimized by Box-Behnken design. RSC Adv 2023; 13:7329-7338. [PMID: 36891488 PMCID: PMC9987514 DOI: 10.1039/d2ra06973c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/21/2023] [Indexed: 03/08/2023] Open
Abstract
Mesoporous silica is restricted to organic solvents or other acidic media. The application of mesoporous silica depends on the medium's chemical stability and mechanical properties. It is necessary to stabilize the mesoporous silica material under acidic conditions. The results of the nitrogen adsorption characterization show that MS-50 has a large surface area and porosity, resulting in good mesoporous silica. Using variance analysis (ANOVA) to compare the collected data, the best conditions were found at a pH of 6.32, a Cd2+ concentration of 25.30 ppm, an adsorbent dose of 0.06 g, and a time of 70.44 min. The Cd2+ adsorption experiment data best fit the Langmuir isotherm model with the maximum amount of Cd2+ that MS-50 could absorb being 103.10 mg g-1.
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Affiliation(s)
- Andriayani
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara Jl. Bioteknologi No. 1 Medan 20155 Indonesia
| | - Marpongahtun
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara Jl. Bioteknologi No. 1 Medan 20155 Indonesia
| | - Yugia Muis
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara Jl. Bioteknologi No. 1 Medan 20155 Indonesia
| | - Jessica Pakpahan
- Graduate School, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara Jl. Bioteknologi No. 1 Medan 20155 Indonesia
| | - Amru Daulay
- Postgraduate School, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara Jl. Bioteknologi No. 1 Medan 20155 Indonesia
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6
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Yuan X, Li J, Luo L, Zhong Z, Xie X. Advances in Sorptive Removal of Hexavalent Chromium (Cr(VI)) in Aqueous Solutions Using Polymeric Materials. Polymers (Basel) 2023; 15:388. [PMID: 36679268 PMCID: PMC9863183 DOI: 10.3390/polym15020388] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/14/2023] Open
Abstract
Sorptive removal of hexavalent chromium (Cr(VI)) bears the advantages of simple operation and easy construction. Customized polymeric materials are the attracting adsorbents due to their selectivity, chemical and mechanical stabilities. The mostly investigated polymeric materials for removing Cr(VI) were reviewed in this work. Assembling of robust functional groups, reduction of self-aggregation, and enhancement of stability and mechanical strength, were the general strategies to improve the performance of polymeric adsorbents. The maximum adsorption capacities of these polymers toward Cr(VI) fitted by Langmuir isotherm model ranged from 3.2 to 1185 mg/g. Mechanisms of complexation, chelation, reduction, electrostatic attraction, anion exchange, and hydrogen bonding were involved in the Cr(VI) removal. Influence factors on Cr(VI) removal were itemized. Polymeric adsorbents performed much better in the strong acidic pH range (e.g., pH 2.0) and at higher initial Cr(VI) concentrations. The adsorption of Cr(VI) was an endothermic reaction, and higher reaction temperature favored more robust adsorption. Anions inhibited the removal of Cr(VI) through competitive adsorption, while that was barely affected by cations. Factors that affected the regeneration of these adsorbents were summarized. To realize the goal of industrial application and environmental protection, removal of the Cr(VI) accompanied by its detoxication through reduction is highly encouraged. Moreover, development of adsorbents with strong regeneration ability and low cost, which are robust for removing Cr(VI) at trace levels and a wider pH range, should also be an eternally immutable subject in the future. Work done will be helpful for developing more robust polymeric adsorbents and for promoting the treatment of Cr(VI)-containing wastewater.
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Affiliation(s)
- Xiaoqing Yuan
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jingxia Li
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Zhenyu Zhong
- Hunan Research Academy of Environmental Sciences, Changsha 410014, China
| | - Xiande Xie
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
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Peng X, Liu S, Luo Z, Yu X, Liang W. Selective Removal of Hexavalent Chromium by Novel Nitrogen and Sulfur Containing Cellulose Composite: Role of Counter Anions. MATERIALS (BASEL, SWITZERLAND) 2022; 16:ma16010184. [PMID: 36614522 PMCID: PMC9821927 DOI: 10.3390/ma16010184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 05/27/2023]
Abstract
Exploiting an adsorbent with superb selectivity is of utmost importance for the remediation of Cr (VI)-laden wastewater. In this work, a novel nitrogen and sulfur functionalized 3D macroporous cellulose material (MPS) was prepared by homogeneous cross-link cellulose and polyvinylimidazole, followed by ion exchange with MoS42-. MPS exhibited high removal efficiency at a broad pH range (1.0-8.0) and large adsorption capacity (379.78 mg/g) toward Cr (VI). Particularly, outstanding selectivity with an enormous partition coefficient (1.01 × 107 mL/g) was achieved on MPS. Replacing MoS42- with Cl- and MoO42- led to a sharp decline in adsorption selectivity, demonstrating that MoS42- contributed substantially to the selectivity. Results of FTIR, XPS, and apparent kinetic analysis revealed that Cr (VI) was first pre-enriched on the MPS surface via electrostatic and dispersion forces, and then reacted with MoS42- to generate Cr (III), which deposited on MPS by forming Cr(OH)3 and chromium(III) sulfide. This study provides a new idea for designing adsorbents with a superior selectivity for removing Cr (VI) from sewage.
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Affiliation(s)
- Xiong Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Shujun Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhijia Luo
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xiwen Yu
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, China
| | - Wanwen Liang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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Mortazavian S, Murph SEH, Moon J. Biochar Nanocomposite as an Inexpensive and Highly Efficient Carbonaceous Adsorbent for Hexavalent Chromium Removal. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15176055. [PMID: 36079435 PMCID: PMC9457831 DOI: 10.3390/ma15176055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 05/27/2023]
Abstract
Biochar is commonly used for soil amendment, due to its excellent water-holding capacity. The Cr(VI) contamination of water is a current environmental issue in industrial regions. Here, we evaluated the effects of two-step modifications on boosting biochar's performance in terms of the removal of aqueous hexavalent chromium (Cr(VI)), along with investigating the alterations to its surface properties. The first modification step was heat treatment under air at 300 °C, producing hydrophilic biochar (HBC). The resulting HBC was then impregnated with zero-valent iron nanoparticles (nZVI), creating an HBC/nZVI composite, adding a chemical reduction capability to the physical sorption mechanism. Unmodified biochar (BC), HBC, and HBC/nZVI were characterized for their physicochemical properties, including surface morphology and elemental composition, by SEM/EDS, while functional groups were ascertained by FTIR and surface charge by zeta potential. Cr(VI) removal kinetic studies revealed the four-time greater sorption capacity of HBC than BC. Although unmodified BC showed faster initial Cr(VI) uptake, it rapidly worsened and started desorption. After nZVI impregnation, the Cr(VI) removal rate of HBC increased by a factor of 10. FTIR analysis of biochars after Cr(VI) adsorption showed the presence of Cr(III) oxide only on the used HBC/nZVI and demonstrated that the carbonyl and carboxyl groups were the main groups involved in Cr(VI) sorption. Modified biochars could be considered an economical substitute for conventional methods.
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Affiliation(s)
- Soroosh Mortazavian
- Department of Mechanical Engineering, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
| | | | - Jaeyun Moon
- Department of Mechanical Engineering, University of Nevada Las Vegas, Las Vegas, NV 89154, USA
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Ramírez-Rodríguez LC, Quintanilla-Carvajal MX, Mendoza-Castillo DI, Bonilla-Petriciolet A, Jiménez-Junca C. Preparation and Characterization of an Electrospun Whey Protein/Polycaprolactone Nanofiber Membrane for Chromium Removal from Water. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2744. [PMID: 36014608 PMCID: PMC9413122 DOI: 10.3390/nano12162744] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/03/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
Chromium pollution represents a worldwide concern due to its high toxicity and bioaccumulation in organisms and ecosystems. An interesting material to remove metal ions from water is a whey-protein-based material elaborated by electrospinning, which is an emerging method to produce adsorbent membranes with diverse applications. The aim of this study was to prepare an adsorbent membrane of whey protein isolate (WPI) and polycaprolactone (PCL) by electrospinning to remove chromium ions from water. The adsorbent membrane was synthesized by a central composed design denaturing WPI using 2-Mercaptoethanol and mixing it with PCL to produce electrospun nanofibers. The adsorbent membrane was characterized by denaturation, Scanning Electron Microscope, Fourier-Transform Infrared Spectroscopy, Contact Angle, Thermogravimetric Analysis, and X-ray Photoelectron Spectrometry. The adsorption properties of this membrane were assessed in the removal of chromium. The removal performance of the membrane was enhanced by an increase in temperature showing an endothermic adsorption process. The adsorption process of chromium ions onto the nanofiber membrane followed the Sips adsorption isotherm, while the adsorption kinetics followed a pseudo-second kinetics where the maximum adsorption capacity was 31.0 mg/g at 30 °C and pH 2. This work provides a novel method to fabricate a hybrid membrane with amyloid-type fibrils of WPI and PCL, which is a promising adsorbent to remove heavy metal ions from water.
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Affiliation(s)
- Laura Cristina Ramírez-Rodríguez
- Maestría en Diseño y Gestión de Procesos Facultad de Ingeniería, Campus Universitario Puente del Común, Universidad de la Sabana, Km. 7 Autopista Norte, Chia 25001, Colombia
| | - María Ximena Quintanilla-Carvajal
- Agroindustrial Processes Research Group, Campus Universitario Puente del Común, Universidad de La Sabana, Km. 7 Autopista Norte, Chia 25001, Colombia
| | - Didilia Ileana Mendoza-Castillo
- CONACYT, Ciudad de México 03940, Mexico
- Departamento de Ingeniería Química, Instituto Tecnológico de Aguascalientes, Aguascalientes 20256, Mexico
| | - Adrián Bonilla-Petriciolet
- Departamento de Ingeniería Química, Instituto Tecnológico de Aguascalientes, Aguascalientes 20256, Mexico
| | - Carlos Jiménez-Junca
- Bioprospecting Research Group, Campus Universitario Puente del Común, Universidad de La Sabana, Km. 7 Autopista Norte, Chia 25001, Colombia
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10
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Sheydaei M. Sodium sulfide-based polysulfide polymers: synthesis, cure, thermal and mechanical properties. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2088235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Milad Sheydaei
- Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
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11
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Khalil KM, Elhamdy WA, Elsamahy AA. Biomass derived P−doped activated carbon as nanostructured mesoporous adsorbent for chromium(VI) pollutants with pronounced functional efficiency and recyclability. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Gao K, Li J, Chen M, Jin Y, Ma Y, Ou G, Wei Z. ZIF-67 derived magnetic nanoporous carbon coated by poly(m-phenylenediamine) for hexavalent chromium removal. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119436] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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13
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Han TU, Kim J, Kim K. Use of spent coffee ground as a reducing agent for enhanced reduction of chromate by freezing process. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Sadeghi S, Mohammadi Bijaem T. Magnetic dispersive micro-solid-phase extraction using Fe 3O 4@AC-DZ nanosorbent for the determination of Cr(VI) in water samples. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1931281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Susan Sadeghi
- Department of Chemistry, Faculty of Science, University of Birjand, Birjand, Iran
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15
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Fang Y, Yang K, Zhang Y, Peng C, Robledo-Cabrera A, López-Valdivieso A. Highly surface activated carbon to remove Cr(VI) from aqueous solution with adsorbent recycling. ENVIRONMENTAL RESEARCH 2021; 197:111151. [PMID: 33844973 DOI: 10.1016/j.envres.2021.111151] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/20/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
To enhance the inferior removal capability of aqueous Cr(VI) by commercial activated carbon under neutral conditions. The emerging ball milling technology was employed and the removal efficiency of Cr(VI) by ball-milled highly activated carbon (HAC) increased from 68.3% to 99.0% under pH 6 and from 42.7% to 77.8% under pH 7 compared to pristine activated carbon (AC), respectively. Raman spectra and Boehm's titration results signified that the enhanced Cr(VI) removal performance of HAC under neutral conditions was associated with the enriched surface acid functional groups, in which the content of COOH groups increased from 0.31 mmol/g to 0.97 mmol/g. Two Cr(VI) removal mechanisms were proposed established on the acid and alkalic solution washed chromium-loaded HAC, involving the reduction of Cr(VI) to Cr(III) subsequently accompany with the formation of chromium hydroxides on the surface and inside the pores of HAC, and the bonding of CrO42- on the surface COOH groups, as confirmed by SEM-EDX element mapping and specific surface area and porosity measurements. The Pseudo-second order model and Freundlich model fitted the adsorption kinetic and isotherm of AC and HAC well severally, suggesting that the specific interaction of Cr(VI) with the HAC surface and the Cr(VI) removal was multi-layer adsorption. Thermodynamic study exhibited the spontaneity of Cr(VI) removal on ball-milled HAC was increased. Reusability and regeneration studies of HAC denoted the potential application on Cr(VI) uptake under neutral conditions.
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Affiliation(s)
- Yi Fang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Ke Yang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Yipeng Zhang
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Changsheng Peng
- School of Environmental and Chemical Engineering, Zhaoqing Univerity, Zhaoqing, 526061, China.
| | - Aurora Robledo-Cabrera
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
| | - Alejandro López-Valdivieso
- Instituto de Metalurgia, Universidad Autónoma de San Luis Potosí, Av. Sierra Leona 550, C.P, 78210, Mexico.
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16
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Huang T, Junjun T, Liu W, Song D, Yin LX, Zhang S. Biotreatment for the spent lithium-ion battery in a three-module integrated microbial-fuel-cell recycling system. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 126:377-387. [PMID: 33819901 DOI: 10.1016/j.wasman.2021.03.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 01/22/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
A bio-electrochemically (BE) recycling platform was assembled to recover Li and Co from the cathodic materials of spent LIBs in one integrated system. The BE platform consists of three microbial-fuel-cell (MFC) subsystems, including MFC-A, MFC-B, and MFC-C. Co and Li were smoothly recovered from the cathodic materials in the assembled platform. The initial pH and the loading ratios of LiCoO2 both significantly influenced the leaching efficiencies of Li and Co in MFC-A. Approximately 45% Li and 93% Co were simultaneously released through the reduction of LiCoO2 at the initial pH of 1 and the loading ratios of LiCoO2 of 0.2 g/L. The (NH4)2C2O4-modified granular activated carbons (GAC) with a thickness of 1.5 cm was favorably stacked adjacent to the cathode of the MFC-B system. About 98% of removal efficiency (RECo1) and 96% of recovery efficiency (RECo2) of Co were achieved in MFC-B under optimum conditions. The dosing concentration of Li+ lower than 2 mg/L and the (NH4)2CO3 of 0.01-0.02 M were conducive to enhancing the recovery of Li from raffinate and guaranteed the higher power output and coulombic efficiencies in MFC-C. The continuous release of CO2 caused by exoelectrogenic microorganisms on the biofilm facilitated the precipitation of Li2CO3.
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Affiliation(s)
- Tao Huang
- School of Materials Engineering, Changshu Institute of Technology, 215500, China; Suzhou Key Laboratory of Functional Ceramic Materials, Changshu Institute of Technology, Changshu 215500, China; School of Chemical Engineering & Technology China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Tao Junjun
- School of Materials Engineering, Changshu Institute of Technology, 215500, China.
| | - Wanhui Liu
- School of Materials Engineering, Changshu Institute of Technology, 215500, China; Suzhou Key Laboratory of Functional Ceramic Materials, Changshu Institute of Technology, Changshu 215500, China.
| | - Dongping Song
- School of Materials Engineering, Changshu Institute of Technology, 215500, China
| | - Li-Xin Yin
- School of Economics and Management, Changshu Institute of Technology, No. 99, South 3rd Ring Road, Changshu 215500, China.
| | - Shuwen Zhang
- Nuclear Resources Engineering College, University of South China, 421001, China
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17
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Claros M, Kuta J, El-Dahshan O, Michalička J, Jimenez YP, Vallejos S. Hydrothermally synthesized MnO2 nanowires and their application in Lead (II) and Copper (II) batch adsorption. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115203] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Meng Q, Zhang Y, Meng D, Liu X, Zhang Z, Gao P, Lin A, Hou L. Removal of sulfadiazine from aqueous solution by in-situ activated biochar derived from cotton shell. ENVIRONMENTAL RESEARCH 2020; 191:110104. [PMID: 32853664 DOI: 10.1016/j.envres.2020.110104] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/07/2020] [Accepted: 08/08/2020] [Indexed: 06/11/2023]
Abstract
Phosphoric acid is used to in-situ activate biochar pyrolyzed by cotton shells to enhance the adsorption ability of sulfadiazine (SDZ). To confirm the optimum condition, different impregnation ratios and impregnation times were investigated. It was found that the biochar (BC) pyrolyzed under the condition of an impregnation ratio of 2.5 and an impregnation time of 6 h showed the highest performance for the removal of SDZ. The maximum adsorption ability was 86.89 mg/g at a temperature of 298 K. The pseudo-second-order model was used to disclose the adsorption process of SDZ by BCs. The experimental data were described by the Langmuir and Temkin isotherms at different temperatures. It was found that the sorption of SDZ was an exothermic process according to the thermomechanical analysis. The activated BC could be recycled for at least five times with a high removal rate of SDZ. Thus, activated BCs are regarded as promising adsorbents for SDZ removal.
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Affiliation(s)
- Qingmei Meng
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China; College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Yanli Zhang
- College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Di Meng
- College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Xinpeng Liu
- College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Zijian Zhang
- College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Peiling Gao
- College of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255049, PR China
| | - Aiguo Lin
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China; Academy of Science and Technology, China University of Petroleum (East China), Qingdao, 266580, PR China
| | - Lian Hou
- College of Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, PR China.
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19
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Li SY, Shu M, Zhong C, Chen H, Bi Y, Hou PF, Wu GP. Characterization and Kinetic Study of Bentonite-Coated Activated Carbon for Adsorption of DNA Polymerase Inhibitors to Improve the Detection Sensitivity of Salmonella Derived from Vegetables by Rti-LAMP. FOOD ANAL METHOD 2020. [DOI: 10.1007/s12161-020-01814-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Kalaee M, Abdouss M, Shakiba M. Synthesis and characterization of aliphatic polysulfides by interfacial polycondensation of sodium tetrasulfide with dichloroalkanes in the presence of quaternary onium salts. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1787413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Mohammadreza Kalaee
- Department of Polymer and Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Majid Abdouss
- Department of Chemistry, Amirkabir University of Technology, Tehran, Iran
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21
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Zhao LY, Fei JJ, Lian HZ, Mao L, Cui XB. Development of a novel amine- and carboxyl-bifunctionalized hybrid monolithic column for non-invasive speciation analysis of chromium. Talanta 2020; 212:120799. [DOI: 10.1016/j.talanta.2020.120799] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 01/08/2023]
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22
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Sultana Q, Naeem A, Mahmood T, Ud Din I, Saeed T, Khan N, Ahmad T. Sorption Studies of Chromate by Iron Oxide from Drinking Water. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-1461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Abstract
Chromium is well-thought-out heavy metal which is one of the enormously lethal due to its cancer-causing nature. In this study, iron oxide is used as adsorbent for chromate removal from aqueous solution as a function of pH, time, temperature, concentration of adsorbate and media dosage. The influence of pH on Cr (VI) sorption by iron oxide reveals that adsorption is significantly increased as pH is decreased from 8 to 2. The sorption rate is detected to be higher in the beginning and then it remains constant after 120 min of equilibrium time. The removal of Cr (VI) is found to be greater at higher temperature, which confirms the endothermic nature of Cr (VI) adsorption by iron oxide. Whereas, the kinetic investigations confirm that the chromate adsorption follows the pseudo second order with kinetic energy in the range of 8.4–83.7 kJ mol−1.
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Affiliation(s)
- Qamar Sultana
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
| | - A. Naeem
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
| | - Tahira Mahmood
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
| | - Israf Ud Din
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
- Prince Sattam bin Abdulaziz University, College of Science and Humanities , Department of Chemistry , Al-kharj , Saudi Arabia
| | - Tooba Saeed
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
| | - Nadir Khan
- National Centre of Excellence in Physical Chemistry, University of Peshawar , Peshawar , Pakistan
| | - Tauqeer Ahmad
- Department of Chemistry , University of Sargodha , Sub Campus Mianwali , Sargodha , Pakistan
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23
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Zheng X, Kang F, Liu X, Peng H, JinYang Zhang. Carbon-coated Mg–Al layered double oxide nanosheets with enhanced removal of hexavalent chromium. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.07.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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24
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Pakade VE, Tavengwa NT, Madikizela LM. Recent advances in hexavalent chromium removal from aqueous solutions by adsorptive methods. RSC Adv 2019; 9:26142-26164. [PMID: 35531021 PMCID: PMC9070541 DOI: 10.1039/c9ra05188k] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 08/13/2019] [Indexed: 12/25/2022] Open
Abstract
Chromium exists mainly in two forms in environmental matrices, namely, the hexavalent (Cr(vi)) and trivalent (Cr(iii)) chromium. While Cr(iii) is a micronutrient, Cr(vi) is a known carcinogen, and that warrants removal from environmental samples. Amongst the removal techniques reported in the literature, adsorption methods are viewed as superior to other methods because they use less chemicals; consequently, they are less toxic and easy to handle. Mitigation of chromium using adsorption methods has been achieved by exploiting the physical, chemical, and biological properties of Cr(vi) due to its dissolution tendencies in aqueous solutions. Many adsorbents, including synthetic polymers, activated carbons, biomass, graphene oxide, and nanoparticles as well as bioremediation, have been successfully applied in Cr(vi) remediation. Initially, adsorbents were used singly in their natural form, but recent literature shows that more composite materials are generated and applied. This review focused on the recent advances, insights, and project future directions for these adsorbents as well as compare and contrast the performances achieved by the mentioned adsorbents and their variants.
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Affiliation(s)
- Vusumzi E Pakade
- Department of Chemistry, Vaal University of Technology Private Bag X 021 Vanderbijlpark South Africa
| | - Nikita T Tavengwa
- Department of Chemistry, University of Venda Private Bag X5050 Thohoyandou 0950 South Africa
| | - Lawrence M Madikizela
- Department of Chemistry, Durban University of Technology PO Box 1334 Durban 4000 South Africa
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25
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Li B, Yin W, Xu M, Tan X, Li P, Gu J, Chiang P, Wu J. Facile modification of activated carbon with highly dispersed nano-sized α-Fe 2O 3 for enhanced removal of hexavalent chromium from aqueous solutions. CHEMOSPHERE 2019; 224:220-227. [PMID: 30822728 DOI: 10.1016/j.chemosphere.2019.02.121] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/15/2019] [Accepted: 02/18/2019] [Indexed: 05/22/2023]
Abstract
Activated carbon-coated α-Fe2O3 nanoparticles (nFe2O3@AC) were synthesized by a facile impregnation method to enhance hexavalent chromium (Cr(VI)) removal from water. The SEM images confirmed that α-Fe2O3 particles ranging from 90 to 500 nm were dispersedly loaded on the AC, which successfully amended Cr(VI) removal. The nFe2O3@AC was able to remove Cr(VI) with a 3 times higher efficiency of 94% in comparison with the AC. After adsorption, Cr(VI) reduction coupled with AC oxidation and low soluble (CrxFe1-x)(OH)3 precipitates were eventually formed. The Cr(VI) removal process was pH-dependent and could be well fitted to pseudo second-order kinetics. The nFe2O3@AC could be easily regenerated by 0.1 M HCl and showed a good stability as an 80% Cr(VI) removal efficiency was recorded after 4 desorption-adsorption cycles. In addition, this composite had a promising potential for repeated utilization because the AC of the adsorbed nFe2O3@AC could be refreshed and remodified with nFe2O3 after stripping all the nFe2O3 and (CrxFe1-x)(OH)3 precipitates from its surface by 1 M HCl and a Cr(VI) removal efficiency of 86% could be achieved. Our results demonstrated that the use of nFe2O3 is an efficient and promising method to modify AC and enhance Cr(VI) removal form aqueous solutions.
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Affiliation(s)
- Bing Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Weizhao Yin
- School of Environment, Jinan University, Guangzhou, 510632, PR China
| | - Meng Xu
- Poten Environment Group Co., Ltd, Beijing, 100082, PR China
| | - Xueyun Tan
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Ping Li
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Jingjing Gu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Penchi Chiang
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China
| | - Jinhua Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou, 510006, PR China; The Key Laboratory of Environmental Protection and Eco-Remediation of Guangdong Regular Higher Education Institutions, Guangzhou, 510006, PR China.
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