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A AR, Jagadeesan AK, Deivasigamani P, Sundararaman S, Balakrishna Pillai Sankari NP. The bio-adsorption competence of tailor made lemon grass adsorbents on oils: An in-vitro approach. ENVIRONMENTAL RESEARCH 2023; 222:115332. [PMID: 36709874 DOI: 10.1016/j.envres.2023.115332] [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: 09/27/2022] [Revised: 12/05/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
The oil contamination in aquatic system is considered as most serious environmental issues and identifying a suitable ecofriendly solution for this oil pollution management is critical. Hence, this research was designed to evaluate the oils (petrol, diesel, engine oil, and crude oil) adsorptive features through raw lemon grass adsorbent, physically/chemically treated adsorbents. Initially, such raw and treated adsorbents were characterized by Scanning Electron Microscope (SEM), Fourier transform infrared spectroscopy (FTIR), and Energy-Dispersive X-ray Spectroscopy (EDS) analysis. These characterization techniques revealed that the lemon grass adsorbent had considerable level of pollutant adsorption potentials owing to porous morphological structure, active functional groups and pollutants interaction with chemical elements. The physically treated adsorbent exhibited better adsorption characteristics than others. Accordingly, the petrol adsorption potential of raw adsorbent, physically treated and chemically treated ones was discovered as their weight incremented up to 2.0, 3.0, and 1.5 times their initial weight, respectively. Similarly, the weight of raw form, physically and chemically treated ones on diesel had increased significantly, up to 2.5 times, 4.0 times, and 2.0 times, respectively. It was evaluated that the weight of these tested adsorbents on engine oil incremented by 3.5, 5.0, and 3.0 times their initial weight, while on crude oil these incremented by 4.0, 6.0, and 4.0 times their initial weight respectively. When the media are compared, it's indeed evident about absorption which is preferred as follows: Crude oil, engine oil, diesel, and petrol. The physically treated lemon grass adsorbent showed maximum adsorption and retention potential than others. The kinetic study reveals that the pseudo second order kinetics is the best fit for the adsorption of oil with R2 value of 0.99.
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Affiliation(s)
- Annam Renita A
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India.
| | - Aravind Kumar Jagadeesan
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, Tamil Nadu, India
| | - Prabu Deivasigamani
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
| | - Sathish Sundararaman
- Department of Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
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Joya-Cárdenas DR, Rodríguez-Caicedo JP, Gallegos-Muñoz A, Zanor GA, Caycedo-García MS, Damian-Ascencio CE, Saldaña-Robles A. Graphene-Based Adsorbents for Arsenic, Fluoride, and Chromium Adsorption: Synthesis Methods Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3942. [PMID: 36432228 PMCID: PMC9698471 DOI: 10.3390/nano12223942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Water contamination around the world is an increasing problem due to the presence of contaminants such as arsenic, fluoride, and chromium. The presence of such contaminants is related to either natural or anthropogenic processes. The above-mentioned problem has motivated the search for strategies to explore and develop technologies to remove these contaminants in water. Adsorption is a common process employed for such proposals due to its versatility, high adsorption capacity, and lower cost. In particular, graphene oxide is a material that is of special interest due to its physical and chemical properties such as surface area, porosity, pore size as well as removal efficiency for several contaminants. This review shows the advances, development, and perspectives of materials based on GO employed for the adsorption of contaminants such as arsenite, arsenate, fluoride, and hexavalent chromium. We provided a detailed discussion of the synthesis techniques and their relationship with the adsorption capacities and other physical properties as well as pH ranges employed to remove the contaminants. It is concluded that the adsorption capacity is not proportional to the surface area in all the cases; instead, the synthesis method, as well as the functional groups, play an important role. In particular, the sol-gel synthesis method shows better adsorption capacities.
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Affiliation(s)
| | | | | | - Gabriela A. Zanor
- Graduate Program in Biosciences, University of Guanajuato, Irapuato 36500, Mexico
- Department of Environmental Engineering, University of Guanajuato, Irapuato 36500, Mexico
| | - Maya S. Caycedo-García
- Facultad de Ingenierías y Tecnologías, Instituto de Investigación Xerira, Universidad de Santander, Bucaramanga 680003, Colombia
| | | | - Adriana Saldaña-Robles
- Graduate Program in Biosciences, University of Guanajuato, Irapuato 36500, Mexico
- Department of Agricultural Engineering, University of Guanajuato, Irapuato 36500, Mexico
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Fatima H, Rizwan Azhar nvestigation M, Cao C, Shao Z. ZnHCF@PB nanoparticles with reduced bandgap as a promising photocatalyst for the degradation of conventional and emerging water contaminants. J Colloid Interface Sci 2022; 631:258-268. [DOI: 10.1016/j.jcis.2022.11.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 11/01/2022] [Accepted: 11/06/2022] [Indexed: 11/13/2022]
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Baraneedharan P, Vadivel S, C A A, Mohamed SB, Rajendran S. Advances in preparation, mechanism and applications of various carbon materials in environmental applications: A review. CHEMOSPHERE 2022; 300:134596. [PMID: 35436457 DOI: 10.1016/j.chemosphere.2022.134596] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/24/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Carbon-related materials are now widely investigated in a various industrial field due to their excellent and unique qualities. It must be tailored to the application in such a way that it fits the application. At the same time, it needs to be generated in sufficient quantities for commercial use, and the synthesis method is the major sticking point here. Because most new materials are discovered by chance, the synthesis process described here may not be the most effective way to create them. The research is merely a steppingstone to discovering a different approach, and it will continue until the substance is no longer being used. If you're developing materials for any purpose, synthesis processes are essential. Fullerene, carbon nanotubes (CNT), graphene, and MXene are only a few of the carbon-based compounds discussed in this overview study, which also gives a brief prognosis on the materials future. Furthermore, the environmental application of these carbon materials was discussed and commented.
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Affiliation(s)
- P Baraneedharan
- Centre for Micro Nano Design and Fabrication, Department of Electronics and Communication Engineering, Saveetha Engineering College, Thandalam, Chennai, 602 105, India
| | - Sethumathavan Vadivel
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India.
| | - Anil C A
- Department of Material Science, Central University of Tamilnadu, Thiruvarur, 610005, India
| | - S Beer Mohamed
- Department of Material Science, Central University of Tamilnadu, Thiruvarur, 610005, India.
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
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Dual immobilization of magnetite nanoparticles and biosilica within alginate matrix for the adsorption of Cd(II) from aquatic phase. Sci Rep 2022; 12:11473. [PMID: 35794461 PMCID: PMC9259746 DOI: 10.1038/s41598-022-15844-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/30/2022] [Indexed: 12/07/2022] Open
Abstract
The adsorption of cadmium ions by magnetite (Fe3O4)@biosilica/alginate (MBA nano-hybrid) was the main aim of the present investigation. Herein, MBA nano-hybrid was synthesized via chemical precipitation technique. As-synthesized MBA nano-hybrid was characterized using FT-IR, FESEM and XRD analyzes. Based on the results, the maximum adsorption capacity of the adsorbent for the removal of Cd(II) was obtained at the initial pH of 7.0. At the initial Cd(II) concentration of 40 mg/L, increasing the reaction time to 180 min led to the Cd adsorption of 35.36 mg/g. Since the removal of Cd(II) after the reaction time of 60 min was insignificant, the reaction time of 60 min was considered as optimum reaction time for performing the experimental runs. According to the results, Langmuir isotherm and pseudo-second order kinetic models were the best fitted models with high correlation coefficients (R2 > 0.99). The results of thermodynamic study indicated exothermic (positive ΔH°) and spontaneous nature (negative ΔG°) of the adsorption of Cd(II) on the surface of MBA nano-hybrid. Negligible reduction in the adsorption capacity of the nano-hybrid was observed (16.57%) after fifth experimental runs, indicating high reusability potential of the as-synthesized nano-hybrid adsorbent.
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Dash B, Jena SK, Rath SS. Adsorption of Cr (III) and Cr (VI) ions on muscovite mica: Experimental and molecular modeling studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119116] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Nayl AA, Abd-Elhamid AI, Ahmed IM, Bräse S. Preparation and Characterization of Magnetite Talc (Fe 3O 4@Talc) Nanocomposite as an Effective Adsorbent for Cr(VI) and Alizarin Red S Dye. MATERIALS 2022; 15:ma15093401. [PMID: 35591732 PMCID: PMC9105966 DOI: 10.3390/ma15093401] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 12/10/2022]
Abstract
In this work, the adsorption of Cr(VI) ions and the organic dye Alizarin Red S (ARS) was investigated using magnetite talc (Fe3O4@Talc) nanocomposite. Different characterization techniques such as scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray Diffraction (XRD), and thermogravimetric analysis (TGA) were used to demonstrate the physical and chemical properties of the fabricated Fe3O4@Talc nanocomposite. In addition, the adsorption isothermic, kinetic, and thermodynamic properties were illustrated. The results demonstrate that the investigated adsorption processes obeyed the Langmuir isotherm model for Cr(VI) and the Freundlich isotherm model for ARS dye, with a maximum adsorption capacity of 13.5 and 11.76 mg·g−1, respectively, controlled by pseudo second-order kinetics. Regeneration and reusability studies demonstrated that the prepared Fe3O4@Talc nanocomposite is a promising and stable adsorbent with considerable reusability potential.
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Affiliation(s)
- AbdElAziz A. Nayl
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia;
- Correspondence: or (A.A.N.); (S.B.)
| | - Ahmed I. Abd-Elhamid
- Nanotechnology and Composite Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab, Alexandria 21934, Egypt;
| | - Ismail M. Ahmed
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia;
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76133 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence: or (A.A.N.); (S.B.)
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Ardila-Arias AN, Arriola-Villaseñor E, Álvarez-González W, Hernández-Maldonado JA, Barrera-Zapata R. Aprovechamiento de residuos de Eichhornia Crassipes para la remoción de Cr (vi) en aguas residuales simuladas. REVISTA POLITÉCNICA 2022. [DOI: 10.33571/rpolitec.v18n35a5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Eichhornia crassipes es una planta considerada una plaga para los diferentes ecosistemas acuáticos en el mundo. Además el Cr (VI) es un contaminante acuático altamente tóxico. Se estudió la capacidad de adsorción de la Eichhornia crassipes como bioadsorbente para la remoción de Cr (VI) presente en un agua residual simulada. La concentración del ion en solución, pH y temperatura fueron estudiadas como variables en un diseño experimental factorial simétrico, y mediante análisis ANOVA. La mayor capacidad de adsorción Cr (VI) (2.5 mgꞏg-1) se obtuvo a 75 ppm de Cr (VI), pH de 1.5 y 45 °C. Se observaron grupos funcionales superficiales que mediante atracción electrostática y formación de puentes de hidrógeno favorecieron la adsorción de Cr (VI). Esto permite concluir que el bioadsorbente es efectivo para la remoción de Cr (VI) en solución con un proceso simple y de bajo costo.
Eichhornia crassipes commonly called water hyacinth, is a plant considered a pest for the different aquatic ecosystems in the world. Furthermore, Cr (VI) is a highly toxic aquatic pollutant. In order to contribute to the solution of these two environmental problems, the adsorption capacity of water hyacinth as a bioadsorbent was studied for the removal of Cr (VI) in a simulated wastewater. The ion concentration in solution, pH y temperature were studied using a symmetric factorial experimental design y applicating an ANOVA analysis. The highest Cr (VI) adsorption capacity (2.5 mgꞏg-1) was obtained at 75 ppm of Cr (VI), pH of 1.5 y 45 ° C. Surface functional groups were observed that, through electrostatic attraction y formation of hydrogen bonds, favored the adsorption of Cr (VI). This allows to conclude that this bioadsorbent is effective for the elimination of Cr (VI) in solution using a simple y low-cost process.
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De Beni E, Giurlani W, Fabbri L, Emanuele R, Santini S, Sarti C, Martellini T, Piciollo E, Cincinelli A, Innocenti M. Graphene-based nanomaterials in the electroplating industry: A suitable choice for heavy metal removal from wastewater. CHEMOSPHERE 2022; 292:133448. [PMID: 34973258 DOI: 10.1016/j.chemosphere.2021.133448] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/30/2021] [Accepted: 12/24/2021] [Indexed: 05/19/2023]
Abstract
The presence of various heavy metal ions in the industrial waste waters has recently been a challenging issue for human health. Since heavy metals are highly soluble in the aquatic environments and they can be absorbed easily by living organisms, their removal is essential from the environmental point of view. Many studies have been devoted to investigating the environmental behaviour of graphene-based nanomaterials as sorbent agents to remove metals from wastewaters arising by galvanic industries. Among the graphene derivates, especially graphene oxide (GO), due to its abundant oxygen functional groups, high specific area and hydrophilicity, is a high-efficient adsorbent for the removal of heavy and precious metals in aquatic environment. This paper reviews the main graphene, GO, functionalized GO and their composites and its applications in the metals removal process. The influencing factors, adsorption capacities and reuse capability are highlighted for the most extensively used heavy metals, including copper, zinc, nickel, chromium, cobalt and precious metals (i.e., gold, silver, platinum, palladium, rhodium, and ruthenium) in the electroplating process.
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Affiliation(s)
- Eleonora De Beni
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy.
| | - Walter Giurlani
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | - Lorenzo Fabbri
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Roberta Emanuele
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Saul Santini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Chiara Sarti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Tania Martellini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | | | - Alessandra Cincinelli
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Massimo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy; Center for Colloid and Surface Science (CSGI), Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; Insititute of Chemistry of Organometallic Compounds (ICCOM) - National Research Council (CNR), Via Madonna Del Piano 10, 50019, Sesto Fiorentino, (FI), Italy
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Shu Y, Ji B, Li Y, Zhang W, Zhang H, Zhang J. Natural pyrite improved steel slag towards environmentally sustainable chromium reclamation from hexavalent chromium-containing wastewater. CHEMOSPHERE 2021; 282:130974. [PMID: 34107422 DOI: 10.1016/j.chemosphere.2021.130974] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/17/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Currently, varied processes adopted to remove hexavalent chromium from aqueous solution have been realized to cause secondary pollution. As such, this study explored a green method for aqueous hexavalent chromium (Cr(Ⅵ)) reclamation by waste steel slag (SS) enhanced by natural pyrite (NP). Compared with the sole SS or NP, more efficient Cr(Ⅵ) removal was achieved by NP-SS at an initial pH value ranging from 1 to 8, resulting in a final pH value of 7-8. Cr(Ⅵ) in the solution could be initially reduced to Cr(III) by Fe2+ provided by NP, which was then bound with the OH- in the solution and the supersaturated calcium silicate hydrate on the surface of SS. In addition, the stearic acid anions existing on the surface of SS could promote the adsorption of Cr(III) to form chromium stearate. The used adsorbent could be potentially used for chromium smelting. Overall, this study provides a feasible and environmental sustainable solution to chromium reclamation from hexavalent chromium-containing wastewater.
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Affiliation(s)
- Yaorong Shu
- Department of Water and Wastewater Engineering, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Bin Ji
- Department of Water and Wastewater Engineering, Wuhan University of Science and Technology, Wuhan, 430065, China.
| | - Yuexin Li
- Department of Water and Wastewater Engineering, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Wei Zhang
- School of Hydraulic Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Huining Zhang
- School of Civil Engineering, Lanzhou University of Technology, Lanzhou, 730050, People's Republic of China
| | - Jun Zhang
- Institute of Resources Comprehensive Utilization, Guangdong Academy of Sciences, Guangzhou, 510651, China
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New insights into colloidal GO, Cr(VI) and Fe(II) interaction by a combined batch, spectroscopic and DFT calculation investigation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Ultrafast and efficient removal of aqueous Cr(VI) using iron oxide nanoparticles supported on Bermuda grass-based activated carbon. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116026] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Bao S, Yang W, Wang Y, Yu Y, Sun Y. Highly efficient and ultrafast removal of Cr(VI)in aqueous solution to ppb level by poly(allylamine hydrochloride) covalently cross-linked amino-modified graphene oxide. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:124470. [PMID: 33189464 DOI: 10.1016/j.jhazmat.2020.124470] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/22/2020] [Accepted: 10/31/2020] [Indexed: 05/08/2023]
Abstract
We herein report a facile strategy to prepare poly(allylamine hydrochloride) cross-linked amino-modified graphene oxide (PAH-ASGO) by Schiff-base reactions. The resulting PAH-ASGO exhibited a maximum adsorption capacity of 373.1 mg/g for Cr(VI), which was nearly 9 times higher than that of pure graphene oxide, exceeding that of most GO-based materials previously reported. More significantly, PAH-ASGO can effectively diminish the Cr(VI) concentration from 9.9 mg/L to the extremely low level of 0.004 mg/L within 10 s, far below the maximum allowable level of Cr(VI) (0.05 mg/L) in drinking water. In addition, the adsorbents still displayed excellent removal efficiency of 91.8% after 10 cycles. Considering the broad diversity, we developed also a magnetic PAH-ASGO/Fe3O4 adsorbent by a simple cross-linking reaction to achieve rapid separation of PAH-ASGO from their aqueous solution. Finally, the PAH-ASGO was successfully utilized to treat the actual industrial effluent.
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Affiliation(s)
- Shuangyou Bao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Weiwei Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China.
| | - Yingjun Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - Yongsheng Yu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China.
| | - Yinyong Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
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Asgari E, Sheikhmohammadi A, Yeganeh J. Application of the Fe3O4-chitosan nano-adsorbent for the adsorption of metronidazole from wastewater: Optimization, kinetic, thermodynamic and equilibrium studies. Int J Biol Macromol 2020; 164:694-706. [DOI: 10.1016/j.ijbiomac.2020.07.188] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/12/2020] [Accepted: 07/17/2020] [Indexed: 12/31/2022]
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Efficient removal of Cr (VI) from aqueous solution by halloysite/poly(amidoamine) dendritic nano-hybrid materials: kinetic, isotherm and thermodynamic studies. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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One-step synthesis of 2-mercaptobenzothiazole functionalized magnetic Fe3O4 and its application for the removal of heavy metals. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.08.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Performance Differences of Hexavalent Chromium Adsorbents Caused by Graphene Oxide Drying Process. Sci Rep 2020; 10:4882. [PMID: 32184454 PMCID: PMC7078186 DOI: 10.1038/s41598-020-61760-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/02/2020] [Indexed: 12/27/2022] Open
Abstract
In this study, the influence of drying conditions on amine (−NH3) functionalization of graphene oxide (GO) was evaluated, and the hexavalent chromium (Cr(VI)) adsorption efficiency of the prepared materials was compared. 3-[2-(2-aminoehtylamino) ethylamino]propyl-trimethoxysilane (3N) was used for amine functionalization. The synthesized materials were analyzed by SEM, BET, TGA, XPS, and EA. TGA results showed that the solution-GO (SGO) was functionalized by more 3N molecules than freeze-dried GO (FDGO) and oven-dried GO (ODGO). Additionally, XPS analysis also showed that the ratio of N/C and Si/C was relatively high in SGO than FDGO and ODGO. The maximum adsorption capacity of SGO, FDGO, and ODGO for Cr(VI) was 258.48, 212.46, and 173.45 mg g−1, respectively. These results indicate that it is better to use SGO without drying processes for efficient amine functionalization and Cr(VI) removal. However, when the drying process is required, freeze-drying is better than oven-drying.
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Preparation and Characterization of Fe-Mn Binary Oxide/Mulberry Stem Biochar Composite Adsorbent and Adsorption of Cr(VI) from Aqueous Solution. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17030676. [PMID: 31972981 PMCID: PMC7036895 DOI: 10.3390/ijerph17030676] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/12/2020] [Accepted: 01/17/2020] [Indexed: 11/17/2022]
Abstract
This study details the preparation of Fe-Mn binary oxide/mulberry stem biochar composite adsorbent (FM-MBC) from mulberry stems via the multiple activation by potassium permanganate, ferrous chloride, triethylenetetramine, and epichlorohydrin. The characteristics of FM-MBC had been characterized by SEM-EDS, BET, FT-IR, XRD, and XPS, and static adsorption batch experiments such as pH, adsorption time, were carried out to study the mechanism of Cr(VI) adsorption on FM-MBC and the impact factors. The results indicated that in contrast with the mulberry stem biochar (MBC), the FM-MBC has more porous on surface with a BET surface area of 74.73 m2/g, and the surface loaded with α-Fe2O3 and amorphization of MnO2 particles. Besides, carboxylic acid, hydroxyl, and carbonyls functional groups were also formed on the FM-MBC surface. At the optimal pH 2.0, the maximum adsorption capacity for Cr(VI) was calculated from the Langmuir model of 28.31, 31.02, and 37.14 mg/g at 25, 35, and 45 °C, respectively. The aromatic groups, carboxyls, and the hydroxyl groups were the mainly functional groups in the adsorption of Cr(VI). The mechanism of the adsorption process of FM-MBC for Cr(VI) mainly involves electrostatic interaction, surface adsorption of Cr(VI) on FM-MBC, and ion exchange.
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Rasoulzadeh H, Dehghani MH, Mohammadi AS, Karri RR, Nabizadeh R, Nazmara S, Kim KH, Sahu J. Parametric modelling of Pb(II) adsorption onto chitosan-coated Fe3O4 particles through RSM and DE hybrid evolutionary optimization framework. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111893] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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