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El-Toni AM, Habila MA, Sheikh M, El-Mahrouky M, Al-Awadi AS, Labis JP, ALOthman ZA. Fabrication of Fe 3O 4 core-TiO 2/mesoSiO 2 and Fe 3O 4 core-mesoSiO 2/TiO 2 Double Shell Nanoparticles for Methylene Blue Adsorption: Kinetic, Isotherms and Thermodynamic Characterization. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2548. [PMID: 37764578 PMCID: PMC10537299 DOI: 10.3390/nano13182548] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/01/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023]
Abstract
Herein, Fe3O4 core-TiO2/mesoSiO2 and Fe3O4 core-mesoSiO2/TiO2 double shell nanoparticles were prepared by first (R1) and second (R2) routes and applied for the removal of methylene blue. The reported adsorption capacities for R1-0.2, R1-0.4 and R2 samples were 128, 118 and 133 mg.g-1, respectively, which were obtained after 80 min as equilibrium contact time, and pH of 6 using a methylene blue concentration of 200 ppm. The adsorption of methylene blue using the prepared Fe3O4 core-meso SiO2/TiO2 double shell was analyzed by kinetic and isotherms models. In addition, thermodynamic investigations were applied to assess the spontaneous nature of the process. The obtained results confirmed that the pseudo-second order model is well fitted with the adsorption data and the Freundlich-isotherm assumption suggested a multilayer adsorption mechanism. In addition, results of the thermodynamic investigation indicated that ΔG° was in the range of -2.3 to -6.8 kJ/mol for R1-0.2, -2.8 to -6.3 kJ/mol for R1-0.4 and -2.0 to -5.2 kJ/mol for R2. In addition, the ΔH° and ΔS° values were found in the range of 26.4 to 36.19 kJ.mol-1 and 94.9 to 126.3 Jmol-1 K-1, respectively. These results confirm that the surfaces of Fe3O4 core-mesoSiO2/TiO2 and Fe3O4 core-TiO2/mesoSiO2 double shell exhibit a spontaneous tendency to adsorb methylene blue from the aqueous solutions. The achieved performance of Fe3O4 core-meso SiO2/TiO2 and Fe3O4 core-TiO2/meso SiO2 double shell as adsorbent for methylene blue removal will encourage future research investigations on the removal of a broad range of contaminants from wastewater.
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Affiliation(s)
- Ahmed Mohamed El-Toni
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia; (A.M.E.-T.); (J.P.L.)
- Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87 Helwan, Cairo 11421, Egypt
| | - Mohamed A. Habila
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia (Z.A.A.)
| | - Mohamed Sheikh
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia (Z.A.A.)
| | - Mohamed El-Mahrouky
- Soil Science Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Abdulrhman S. Al-Awadi
- K.A. Care Energy Research and Innovation Center in Riyadh, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Joselito P. Labis
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia; (A.M.E.-T.); (J.P.L.)
| | - Zeid A. ALOthman
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia (Z.A.A.)
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Efficient and easily scaled-up biosorbent based on natural and chemically modified macauba (Acrocomia aculeata) to remove Al 3+, Mn 2+ and Fe 3+ from surface water contaminated with iron mining tailings. Talanta 2023; 256:124273. [PMID: 36706501 DOI: 10.1016/j.talanta.2023.124273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 12/18/2022] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
The ruptures of tailings mine dams in the cities of Mariana and Brumadinho contaminated local Brazilian Rivers with toxic metals. Herein, we describe a scaled-up biosorbent based on natural macauba endocarp (NTE) and macauba endocarp chemically treated (TE) to remove Al3+, Mn2+ and Fe3+ from aqueous solutions. For the TE material: the variation of pH and temperature of water did not cause significant sorption interferences; the kinetics studies suggest a pseudo-second-order model; the adsorption isotherms revealed that the Langmuir equation was the best fit for Al3+ and Mn2+, while the Freundlich equation best described the Fe3+; and the maximum adsorption capacities were between 0.268 mg g-1 and 1.379 mg g-1. A scaled-up was carried out using an adsorption column to remove the metals from Rio Paraopeba River water samples and the results showed that both NTE and TE are potentially low cost biosorbents for removing Al3+, Mn2+ and Fe3+.
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Zhou Y, He Y, Wang R, Mao Y, Bai J, Dou Y. Modification of Multiwalled Carbon Nanotubes and Their Mechanism of Demanganization. Molecules 2023; 28:molecules28041870. [PMID: 36838859 PMCID: PMC9963761 DOI: 10.3390/molecules28041870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Multiwalled carbon nanotubes (MWCNTs) were modified by oxidation and acidification with concentrated HNO3 and H2SO4, and the modified multiwalled carbon nanotubes (M-MWCNTs) and raw MWCNTs were characterized by several analytical techniques. Then the demanganization effects of MWCNTs and M-MWCNTs were well investigated and elucidated. The experimental data demonstrated that the adsorption efficiency of Mn(II) could be greatly promoted by M-MWCNTs from about 20% to 75%, and the optimal adsorption time was 6 h and the optimal pH was 6. The results of the kinetic model studies showed that Mn(II) removal by M-MWCNTs followed the pseudo-second-order model. Isothermal studies were conducted and the results demonstrated that the experimental data fitted well with the three models. The reliability of the experimental results was well verified by PSO-BP simulation, and the present conclusion could be used as a condition for further simulation. The research results provide a potential technology for promoting the removal of manganese from wastewater; at the same time, the application of various mathematical models also provides more scientific ideas for the research of the mechanism of adsorption of heavy metals by nanomaterials.
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Affiliation(s)
- Yuan Zhou
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yingying He
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Ruixue Wang
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yongwei Mao
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Jun Bai
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
| | - Yan Dou
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an 710054, China
- Correspondence:
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Kim HN, Park JH. Concurrent sorption of antimony and lead by iron phosphate and its possible application for multi-oxyanion contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:22835-22842. [PMID: 36308659 DOI: 10.1007/s11356-022-23800-4] [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: 08/04/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Concurrent stabilization of oxyanions such as antimony (Sb), arsenic (As), and heavy metals including lead (Pb) and manganese (Mn) in contaminated soils is difficult because of their diverse chemical properties. Antimony and As are stabilized by sorption with iron oxides while heavy metals are stabilized by phosphate. Hence, iron phosphate can be used to simultaneously stabilize Sb and Pb. Therefore, this study aimed to evaluate the possibility of simultaneous stabilization of Sb and Pb using iron phosphate. A single and a mixed solution of Sb and Pb were reacted with synthesized iron phosphate. Contaminated soil by Sb, As, Mo, Cr, and Mn was treated with iron phosphate, and bioavailable metal concentrations were evaluated by extracting the soil with 0.05 M ammonium sulfate. In a single solution, Sb(III) and Sb(V) sorption rate ranged up to 97% and 65%, respectively. In a mixed metal solution, Sb sorption increased compared to the single solution and Pb removal reached more than 95% in all cases. The sorption of Sb increased as the pH decreased, but the Sb(III) sorption was less affected by the pH than Sb(V). In various pH ranges, Sb(III) and Sb(V) sorption rates increased by 26 ~ 32% and 38 ~ 68%, respectively, compared to the single solution. Especially, Sb(V) sorption significantly increased in the presence of Pb at lower pH because of the lower solubility of iron phosphate. In soil, iron phosphate slightly decreased bioavailable As, Cr, Mo, Sb, and Mn concentrations. Therefore, metalloids and metals can be simultaneously stabilized by iron phosphate both in solution and soil.
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Affiliation(s)
- Han Na Kim
- Department of Environmental and Biological Chemistry, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Jin Hee Park
- Department of Environmental and Biological Chemistry, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea.
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Decorated Copper Oxide Using β-Cyclodextrin for a Potential Removal of Sunset Yellow from Aqueous Medium. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-06939-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rosli N, Yahya WZN, Wirzal MDH. Crosslinked chitosan/poly(vinyl alcohol) nanofibers functionalized by ionic liquid for heavy metal ions removal. Int J Biol Macromol 2022; 195:132-141. [PMID: 34896464 DOI: 10.1016/j.ijbiomac.2021.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 11/17/2022]
Abstract
Nanostructure adsorbents namely nanofibers have been demonstrated to have a high adsorption rate and are efficient to treat wastewater. Herein, chitosan/poly(vinyl alcohol) (PVA) blend nanofiber membranes prepared by electrospinning method were crosslinked using glutaraldehyde and functionalized with 1-allyl-3-methylimidazolium chloride to be used as a potential bio-sorbent for heavy metal ions removal. The chitosan was first hydrolyzed before electrospinning with PVA, followed by crosslinking and further functionalized by ionic liquid to overcome the limitation of chitosan which has low adsorption capacity and unsuitable physical properties for the adsorption process. The morphology and the chemical bond formed were investigated by using field emission scanning electron microscopy with energy dispersive x-ray spectroscopy (FESEM-EDX) and Fourier transform infrared (FTIR) showing that the hydrolyzed chitosan/PVA nanofiber membranes were successfully crosslinked and functionalized. The synthesized adsorbent was evaluated in pure heavy metal ions solutions namely Pb(II), Mn(II), and Cu(II) and shown best performance for Pb(II) ions. The highest adsorption capacity recorded for Pb(II) ions was 166.34 mg/g and are well fitted to the Freundlich isotherm model and pseudo-second-order kinetic model to describe the adsorption equilibrium and kinetic rate of the Pb(II) uptake, respectively. The synthesized adsorbent clearly shows a great capability to remove Pb(II) ions.
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Affiliation(s)
- Norhazirah Rosli
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
| | - Wan Zaireen Nisa Yahya
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia; Centre of Research in Ionic Liquid (CORIL), Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia.
| | - Mohd Dzul Hakim Wirzal
- Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia; Centre of Research in Ionic Liquid (CORIL), Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
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Luhar I, Luhar S, Abdullah MMAB, Razak RA, Vizureanu P, Sandu AV, Matasaru PD. A State-of-the-Art Review on Innovative Geopolymer Composites Designed for Water and Wastewater Treatment. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7456. [PMID: 34885611 PMCID: PMC8658912 DOI: 10.3390/ma14237456] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/17/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022]
Abstract
There is nothing more fundamental than clean potable water for living beings next to air. On the other hand, wastewater management is cropping up as a challenging task day-by-day due to lots of new additions of novel pollutants as well as the development of infrastructures and regulations that could not maintain its pace with the burgeoning escalation of populace and urbanizations. Therefore, momentous approaches must be sought-after to reclaim fresh water from wastewaters in order to address this great societal challenge. One of the routes is to clean wastewater through treatment processes using diverse adsorbents. However, most of them are unsustainable and quite costly e.g. activated carbon adsorbents, etc. Quite recently, innovative, sustainable, durable, affordable, user and eco-benevolent Geopolymer composites have been brought into play to serve the purpose as a pretty novel subject matter since they can be manufactured by a simple process of Geopolymerization at low temperature, lower energy with mitigated carbon footprints and marvellously, exhibit outstanding properties of physical and chemical stability, ion-exchange, dielectric characteristics, etc., with a porous structure and of course lucrative too because of the incorporation of wastes with them, which is in harmony with the goal to transit from linear to circular economy, i.e., "one's waste is the treasure for another". For these reasons, nowadays, this ground-breaking inorganic class of amorphous alumina-silicate materials are drawing the attention of the world researchers for designing them as adsorbents for water and wastewater treatment where the chemical nature and structure of the materials have a great impact on their adsorption competence. The aim of the current most recent state-of-the-art and scientometric review is to comprehend and assess thoroughly the advancements in geo-synthesis, properties and applications of geopolymer composites designed for the elimination of hazardous contaminants viz., heavy metal ions, dyes, etc. The adsorption mechanisms and effects of various environmental conditions on adsorption efficiency are also taken into account for review of the importance of Geopolymers as most recent adsorbents to get rid of the death-defying and toxic pollutants from wastewater with a view to obtaining reclaimed potable and sparkling water for reuse offering to trim down the massive crisis of scarcity of water promoting sustainable water and wastewater treatment for greener environments. The appraisal is made on the performance estimation of Geopolymers for water and wastewater treatment along with the three-dimensional printed components are characterized for mechanical, physical and chemical attributes, permeability and Ammonium (NH4+) ion removal competence of Geopolymer composites as alternative adsorbents for sequestration of an assortment of contaminants during wastewater treatment.
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Affiliation(s)
- Ismail Luhar
- Department of Civil Engineering, Shri Jagdishprasad Jhabarmal Tibrewala University, Rajasthan 333001, India;
| | - Salmabanu Luhar
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia;
- Frederick Research Center, P.O. Box 24729, Nicosia 1303, Cyprus
- Department of Civil Engineering, Frederick University, Nicosia 1036, Cyprus
| | - Mohd Mustafa Al Bakri Abdullah
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia;
| | - Rafiza Abdul Razak
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Perlis 01000, Malaysia;
| | - Petrica Vizureanu
- Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron 41, 700050 Iasi, Romania
| | - Andrei Victor Sandu
- Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, D. Mangeron 41, 700050 Iasi, Romania
- Romanian Inventors Forum, St. P. Movila 3, 700089 Iasi, Romania
- National Institute for Research and Development in Environmental Protection INCDPM, Splaiul Independentei 294, 060031 Bucuresti, Romania
| | - Petre-Daniel Matasaru
- Faculty of Electronics, Telecommunications and Information Technology, Technical University “Gheorghe Asachi”, Carol I Bvd, nr. 11 A, 700506 Iasi, Romania;
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Arsenic removal approaches: A focus on chitosan biosorption to conserve the water sources. Int J Biol Macromol 2021; 192:1196-1216. [PMID: 34655588 DOI: 10.1016/j.ijbiomac.2021.10.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 12/20/2022]
Abstract
Globally, millions of people have no access to clean drinking water and are either striving for that or oppressed to intake polluted water. Arsenic is considered one of the most hazardous contaminants in water bodies that reaches there due to various natural and anthropogenic activities. Modified chitosan has gained much attention from researchers due to its potential for arsenic removal. This review focuses on the need and potential of chitosan-based biosorbents for arsenic removal from water systems. Chitosan is a low-cost, abundant, biodegradable biopolymer that possesses unique structural aspects and functional sites for the adsorption of contaminants like arsenic species from contaminated water. The chitosan-based biosorbents had also been modified using various techniques to enhance their arsenic removal efficiencies. This article reviews various forms of chitosan and parameters involved in chitosan modification which eventually affect the arsenic removal efficiency of the resultant sorbents. The literature revealed that the modified chitosan-based sorbents could express higher adsorption efficiency compared to those prepared from native chitosan. The sustainability of the chitosan-based sorbents has also been considered in terms of reusability. Finally, some recommendations have been underlined for further improvements in this domain.
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You K, Gao Y, Qian W, Fu J, Wang J, Zhou W. Simultaneous removal of fluoride, manganese and iron by manganese oxide supported activated alumina: characterization and optimization via response surface methodology. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:3799-3816. [PMID: 34928845 DOI: 10.2166/wst.2021.461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Fluoride, iron and manganese simultaneous exceedance of standard can be observed in groundwater in northeastern China. This work aims to apply a highly efficient method combining adsorption and oxidation for the synchronous removal of the inorganic ions. An innovative adsorbent (manganese-supported activated alumina) was synthesized by the impregnation method and showed a significant adsorption capacity better than that of fresh activated alumina. The characterization (scanning electron microscope; Brunauer, Emmett and Teller; X-ray diffraction and Fourier transform infrared spectroscopy) results verified the successful introduction of MnOOH and MnO2, and the improvement of surface microstructure enhanced the removal ability. The effect of single factors, such as pH value, reaction time or dosage on the removal performance has been verified. The maximum removal efficiencies of fluoride, iron and manganese were optimized via Response surface methodology considering the independent factors in the range of MO@AA dosage (5-9 g/L), pH (4-6) and contact time (4-12 h). Noted that compared with control, MO@AA exhibited 59.4% of improved fluoride performance. At pH of 5.79, contacting time of 12 h and 8.21 g/L of MO@AA, fluoride, iron and manganese removal were found to be 91, 100 and 23%, respectively. Herein, MO@AA was distinguished as good applicability for the treatment of fluoride-, iron- and manganese-containing groundwater.
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Affiliation(s)
- Kun You
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China E-mail:
| | - Yujia Gao
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China E-mail:
| | - Weiyi Qian
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China E-mail:
| | - Jinxiang Fu
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China E-mail:
| | - Juliang Wang
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China E-mail:
| | - Weiwei Zhou
- Department of Municipal Engineering and Equipment Engineering, Shandong Urban Construction Vocational College, Jinan 250103, China
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Peng H, Qiu H, Wang C, Yuan B, Huang H, Li B. Thermodynamic and Kinetic Studies on Adsorption of Vanadium with Glutamic Acid. ACS OMEGA 2021; 6:21563-21570. [PMID: 34471759 PMCID: PMC8388076 DOI: 10.1021/acsomega.1c02590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Many hydrometallurgy methods, including chemical precipitation, ion exchange, solvent extraction, and adsorption, have been used to recover vanadium from vanadium solution, but the final step of these methods involved precipitation with ammonium salts, high concentrations of which are harmful to the environment. The key point is to find a new compound to replace ammonium salts without reducing the vanadium precipitation efficiency. The adsorption process of vanadium with glutamic acid is investigated. The effects of experimental factors, including dosage of glutamic acid, reaction temperature, concentration of H2SO4, and reaction time, on the adsorption process are investigated. The results show that nearly 91.66% vanadium is adsorbed under the following reaction conditions: reaction temperature of 90 °C, H2SO4 concentration of 20 g/L, glutamic acid dosage at n(glu)/n(V) = 3.0:1, and reaction time of 60 min. The response surface methodology is applied to optimize the reaction conditions. The analysis results indicate that the reaction temperature has the greatest effect on the adsorption efficiency of vanadium and the influence of experimental factors follows the order: reaction temperature > dosage of glutamic acid to vanadium > reaction time > concentration of H2SO4. The pseudo-second-order model is selected to describe well the adsorption kinetic behavior, and the thermodynamic analysis results indicate that the adsorption process of vanadium is unspontaneous and exothermic. The results will be useful for further applications of glutamic acid, and they provide a bright future for vanadium recovery.
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Affiliation(s)
- Hao Peng
- College of Chemistry
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Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Hongzhi Qiu
- College of Chemistry
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Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Caiqiong Wang
- College of Chemistry
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Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Binfang Yuan
- College of Chemistry
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Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Huisheng Huang
- College of Chemistry
and
Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Bing Li
- College of Chemistry
and
Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
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Gupta A, Sharma V, Sharma K, Kumar V, Choudhary S, Mankotia P, Kumar B, Mishra H, Moulick A, Ekielski A, Mishra PK. A Review of Adsorbents for Heavy Metal Decontamination: Growing Approach to Wastewater Treatment. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4702. [PMID: 34443225 PMCID: PMC8398132 DOI: 10.3390/ma14164702] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 02/05/2023]
Abstract
Heavy metal is released from many industries into water. Before the industrial wastewater is discharged, the contamination level should be reduced to meet the recommended level as prescribed by the local laws of a country. They may be poisonous or cancerous in origin. Their presence does not only damage people, but also animals and vegetation because of their mobility, toxicity, and non-biodegradability into aquatic ecosystems. The review comprehensively discusses the progress made by various adsorbents such as natural materials, synthetic, agricultural, biopolymers, and commercial for extraction of the metal ions such as Ni2+, Cu2+, Pb2+, Cd2+, As2+ and Zn2+ along with their adsorption mechanisms. The adsorption isotherm indicates the relation between the amount adsorbed by the adsorbent and the concentration. The Freundlich isotherm explains the effective physical adsorption of the solute particle from the solution on the adsorbent and Langmuir isotherm gives an idea about the effect of various factors on the adsorption process. The adsorption kinetics data provide valuable insights into the reaction pathways, the mechanism of the sorption reaction, and solute uptake. The pseudo-first-order and pseudo-second-order models were applied to describe the sorption kinetics. The presented information can be used for the development of bio-based water treatment strategies.
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Affiliation(s)
- Archana Gupta
- Department of Chemistry, MCM DAV College for Women, Sector 36,
Chandigarh 160036, India;
| | - Vishal Sharma
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Kashma Sharma
- Department of Chemistry, DAV College, Sector-10, Chandigarh 160011, India;
| | - Vijay Kumar
- Department of Physics, National Institute of Technology Srinagar, Srinagar 190006, India;
| | - Sonal Choudhary
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Priyanka Mankotia
- Institute of Forensic Science and Criminology, Panjab University, Chandigarh 160014, India; (S.C.); (P.M.)
| | - Brajesh Kumar
- Post Graduate Department of Chemistry, TATA College, Jharkhand, Chaibasa 833202, India;
- Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolqui 171103, Ecuador
| | - Harshita Mishra
- Smart Society Research Team, Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic; (H.M.); (A.M.)
| | - Amitava Moulick
- Smart Society Research Team, Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic; (H.M.); (A.M.)
| | - Adam Ekielski
- Department of Production Engineering, Warsaw University of Life Sciences, 02-787 Warsaw, Poland;
| | - Pawan Kumar Mishra
- Faculty of Business and Economics, Mendel University in Brno, 61300 Brno, Czech Republic
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Hammo MM, Akar T, Sayin F, Celik S, Akar ST. Efficacy of green waste-derived biochar for lead removal from aqueous systems: Characterization, equilibrium, kinetic and application. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 289:112490. [PMID: 33819651 DOI: 10.1016/j.jenvman.2021.112490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
The removal of toxic metals from the aquatic ecosystem is one of the most pressing environmental and public health concerns today. A strong potential has recently emerged for the removal of such metals using biochar sorbents. Biosorption technology could make a significant difference in the future. It is a viable and cost-effective alternative to the remediation of toxic pollutants utilizing various biomaterials. In the current study, batch and fixed-bed studies were performed to evaluate the performance of Capsicum annuum L. seeds biochar (CASB) as an alternative material in removing toxic Pb(II) from aqueous solutions. Removal characteristics were investigated by considering the equilibrium and kinetic aspects. Biosorption equilibrium was established within 40 min. The optimum dosage of CASB for Pb(II) removal was determined as 2.0 g L-1. Biosorption data were well predicted by a non-linear Langmuir isotherm model. Monolayer biosorption occurred for CASB with a maximum capacity of 36.43 mg g-1. Biosorption kinetics fitted well with a pseudo-first-order kinetic model. The external mass transfer may control Pb(II) transport mechanism. Dynamic flow mode biosorption and regeneration potential of CASB were also examined. The application of CASB exhibited a 100% removal yield in real apple juice samples spiked with low concentrations of Pb(II). Exhausted points for the CASB packed columns were recorded as 195 and 320 min for simulated wastewater (SW) and synthetic Pb(II) solution, respectively. FTIR, BET, SEM-EDX analysis, and zeta potential measurements were used for the characterization of biochar and assessment of the metal ion-biosorbent interaction mechanism. Finally, our study provides a practical approach for the uptake of Pb(II) ions from contaminated solutions.
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Affiliation(s)
- Mahmoud M Hammo
- Eskisehir Osmangazi University, Graduate School of Natural and Applied Sciences, Department of Chemistry, 26040, Eskisehir, Turkey
| | - Tamer Akar
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Chemistry, TR-26040, Eskisehir, Turkey.
| | - Fatih Sayin
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Chemistry, TR-26040, Eskisehir, Turkey
| | - Sema Celik
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Chemistry, TR-26040, Eskisehir, Turkey
| | - Sibel Tunali Akar
- Eskisehir Osmangazi University, Faculty of Science and Letters, Department of Chemistry, TR-26040, Eskisehir, Turkey
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13
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Peng H, Guo J, Wang B. Adsorption behavior of Fe (III) in aqueous solution on melamine. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:1848-1857. [PMID: 33201848 DOI: 10.2166/wst.2020.455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This paper focused on the adsorption behavior of Fe (III) in aqueous solution on melamine. The effects of experimental conditions including dosage of melamine, reaction time and reaction temperature were investigated. The results showed that nearly 99% Fe (III) was adsorbed under the optimal conditions: melamine dosage (mole ratio) at n(C3H6N6)/n(Fe) = 3.5:1, reaction time of 60 min and reaction temperature of 90 °C. The optimal processing factors were obtained from response surface methodology and the effects of processing parameters on the removal efficiency of Fe (III) followed the order: mole ratio (n(C3N6H6):n(Fe)) > reaction temperature > reaction time. The adsorption kinetics behavior was fitted well with the pseudo-second-order model. The thermodynamic study showed that the adsorption process was unspontaneous and endothermic. The value of free energy change and standard enthalpy change disclosed that the mechanism of adsorption onto melamine was physisorption. The results will be useful for further applications of system design in the treatment of practical waste effluents.
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Affiliation(s)
- Hao Peng
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China E-mail:
| | - Jing Guo
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China E-mail:
| | - Bingqing Wang
- Changshou Economic and Technological Development Area Development Investment Group Co., Ltd, Chongqing 408100, China
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14
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Zhuang H, Zhong Y, Yang L. Adsorption equilibrium and kinetics studies of divalent manganese from phosphoric acid solution by using cationic exchange resin. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.07.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Alcaraz L, Alguacil FJ, López FA. Microporous adsorbent from winemaking waste for the recovery of Mn(
VII
) in liquid solutions. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lorena Alcaraz
- National Center for Metallurgical Research Spanish National Research Council (CENIM‐CSIC) Madrid Spain
| | - Francisco J. Alguacil
- National Center for Metallurgical Research Spanish National Research Council (CENIM‐CSIC) Madrid Spain
| | - Félix A. López
- National Center for Metallurgical Research Spanish National Research Council (CENIM‐CSIC) Madrid Spain
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16
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Wang H, Wang T, Ma R, Wu K, Li H, Feng B, Li C, Shen Y. Facile synthesis of sulfonated covalent organic framework for the adsorption of heavy metal ions. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Alman-Abad ZS, Pirkharrati H, Asadzadeh F, Maleki-Kakelar M. Application of response surface methodology for optimization of zinc elimination from a polluted soil using tartaric acid. ADSORPT SCI TECHNOL 2020. [DOI: 10.1177/0263617420916592] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Heavy metal wastes generated from mining activities are a major concern in developing countries such as Iran. Increasing concentrations of these metals in the soil make up a severe health hazard due to their non-degradability and toxicity. In this study, batch washing experiments were conducted in order to investigate the removal efficiency of zinc by biodegradable chelates, tartaric acid. For this purpose, soil samples were collected from the zinc contaminated soil in the region of the Angouran, Zanjan, Iran. Hence, optimization of batch washing conditions followed using a three-level central composite design approach based on the response surface methodology. The results demonstrated that the effects of pH, tartaric acid concentration, and interaction between selective factors on the zinc removal efficiency were all positive and significant (P < 0.05). An optimum zinc removal efficiency of 89.35 ±2.12% was achieved at tartaric acid concentration of 200 mM l−1, pH of 4.46, and incubation time of 120 min as the optimal conditions. Accordingly, response surface methodology is appropriately capable to determine and optimize chemical soil washing process to remediate heavy metal polluted soil.
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18
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Removal of Boron and Manganese Ions from Wet-Flue Gas Desulfurization Wastewater by Hybrid Chitosan-Zirconium Sorbent. Polymers (Basel) 2020; 12:polym12030635. [PMID: 32164366 PMCID: PMC7183067 DOI: 10.3390/polym12030635] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/07/2020] [Accepted: 03/08/2020] [Indexed: 11/18/2022] Open
Abstract
Flue gas desulfurization (FGD) wastewater, after the alkaline precipitation and coagulation processes, often requires additional treatment in order to reduce the concentrations of boron and heavy metals below the required limits. In this study, we present an innovative and environmentally friendly method for boron and manganese removal that is based on a hybrid chitosan-zirconium hydrogel sorbent. The results from the batch adsorption experiment indicated that the uptake capacity for boron and manganese was equal to 1.61 mg/g and 0.75 mg/g, respectively, while the column study indicated that the total capacity of boron and manganese was equal to 1.89 mg/g and 0.102 mg/g, respectively. The very good applicability of the Langmuir isotherm at 25 °C suggested the monolayer coverage of the boron species onto the hybrid chitosan-zirconium hydrogel with a maximum adsorptive capacity of 2 mg/g. The amounts of boron and manganese in purified water could be decreased to less than 1 mg/dm3 and 0.05 mg/dm3, respectively, starting from the initial concentration of boron equal to 24.7 mg/dm3 and manganese equal to 3.0 mg/dm3 in FGD wastewater. Selective desorption of boron from the loaded bed was favorable when a NaOH solution was used, while manganese was preferentially eluted with a HCl solution. It is important to note that such an innovative method was investigated for the first time by testing borax recovery from wastewater in terms of an eco-technological perspective.
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19
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Smythers AL, Perry NL, Kolling DR. Chlorella vulgaris bioaccumulates excess manganese up to 55× under photomixotrophic conditions. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Xu C, Jiang L, Qin X, Jin C, Liu L, Yu S, Xian M. Enhancement mechanism behind the different adsorptive behaviors of nitro/amine modified hypercrosslinked resins towards phenols. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Xu C, Sun WZ, Qin XL, Jia YX, Yu ST, Xian M. Effective adsorption of phenolic compounds by functional group modified resins: behavior and mechanism. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2018.1518331] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Chao Xu
- School of Chemical Engineering, Qingdao University of Science& Technology, Qingdao, China
- Key Laboratory of Biobased Materials,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Wei-Zhi Sun
- Key Laboratory of Biobased Materials,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Xiao-Li Qin
- Key Laboratory of Biobased Materials,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Yu-Xiang Jia
- Key Laboratory of Biobased Materials,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Shi-Tao Yu
- School of Chemical Engineering, Qingdao University of Science& Technology, Qingdao, China
| | - Mo Xian
- Key Laboratory of Biobased Materials,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
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22
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Muliwa AM, Leswifi TY, Maity A, Ochieng A, Onyango MS. Fixed-bed operation for manganese removal from water using chitosan/bentonite/MnO composite beads. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:18081-18095. [PMID: 29691746 DOI: 10.1007/s11356-018-1993-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
In the present study, a new composite adsorbent, chitosan/bentonite/manganese oxide (CBMnO) beads, cross-linked with tetraethyl-ortho-silicate (TEOS) was applied in a fixed-bed column for the removal of Mn (II) from water. The adsorbent was characterised by scanning electron microscopy (SEM), Fourier transform infra-red (FT-IR), N2 adsorption-desorption and X-ray photoelectron spectroscopy (XPS) techniques, and moreover the point of zero charge (pHpzc) was determined. The extend of Mn (II) breakthrough behaviour was investigated by varying bed mass, flow rate and influent concentration, and by using real environmental water samples. The dynamics of the column showed great dependency of breakthrough curves on the process conditions. The breakthrough time (tb), bed exhaustion time (ts), bed capacity (qe) and the overall bed efficiency (R%) increased with an increase in bed mass, but decreased with the increase in both influent flow rate and concentration. Non-linear regression suggested that the Thomas model effectively described the breakthrough curves while large-scale column performance could be estimated by the bed depth service time (BDST) model. Experiments with environmental water revealed that coexisting ions had little impact on Mn (II) removal, and it was possible to achieve 6.0 mg/g breakthrough capacity (qb), 4.0 L total treated water and 651 bed volumes processed with an initial concentration of 38.5 mg/L and 5.0 g bed mass. The exhausted bed could be regenerated with 0.001 M nitric acid solution within 1 h, and the sorbent could be reused twice without any significant loss of capacity. The findings advocate that CBMnO composite beads can provide an efficient scavenging pathway for Mn (II) in polluted water.
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Affiliation(s)
- Anthony M Muliwa
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, South Africa.
| | - Taile Y Leswifi
- Centre for Renewable Energy and Water, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Arjun Maity
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, South Africa
- DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria, South Africa
| | - Aoyi Ochieng
- Centre for Renewable Energy and Water, Vaal University of Technology, Vanderbijlpark, South Africa
| | - Maurice S Onyango
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Private Bag X680, Pretoria, South Africa
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23
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Suddai A, Nuengmatcha P, Sricharoen P, Limchoowong N, Chanthai S. Feasibility of hard acid–base affinity for the pronounced adsorption capacity of manganese(ii) using amino-functionalized graphene oxide. RSC Adv 2018. [DOI: 10.1039/c7ra12999h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study reveals the feasibility of using graphene oxide (GO) functionalized with 3-mercaptopropyl-trimethoxysilane (APTMS) for the removal of Mn(ii) from aqueous solution. The APTMS bound on GO's surface was successfully confirmed by FTIR and EDX.
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Affiliation(s)
- Anek Suddai
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
| | - Prawit Nuengmatcha
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
| | - Phitchan Sricharoen
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
| | - Nunticha Limchoowong
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
| | - Saksit Chanthai
- Materials Chemistry Research Center
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Khon Kaen University
- Khon Kaen 40002
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24
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Bakr AA, Sayed NA, Salama TM, Ali IO, Gayed RRA, Negm NA. Potential of Mg–Zn–Al layered double hydroxide (LDH)/montmorillonite nanocomposite in remediation of wastewater containing manganese ions. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3110-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Constantino LV, Quirino JN, Monteiro AM, Abrão T, Parreira PS, Urbano A, Santos MJ. Sorption and desorption of silver ions by bentonite clays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:11349-11359. [PMID: 28303542 DOI: 10.1007/s11356-017-8394-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 01/04/2017] [Indexed: 06/06/2023]
Abstract
Anthropogenic activities have increased the concentration of metal species in the environment. The toxicity of silver ions to aquatic and terrestrial organisms has required monitoring by analytical methods, besides actions to promote its control as pollutant. Sorption and desorption processes are directly related to the mobility and availability of metal ions in the environment. In this context, clay minerals can be used for pre-concentration, removal and recovery of silver ions from aqueous solution. Herein, two bentonite clays (BaVC-1 and SWy-2) were characterised and applied to investigate the sorption and desorption of silver ions. Isotherms were fitted to the dual-mode Langmuir-Freundlich model to qualify and quantify sorption sites and evaluate the mobilisation process. The maximum sorption capacity was 743 and 849 meq kg-1 for BaVC-1 and SWy-2, respectively. Hysteresis index (HI) and mobilisation factor (MF) suggest that the desorption of silver ions in BaVC-1 is about four times more conducive compared to that in SWy-2, although both materials have demonstrated a great potential for Ag+ pre-concentration from aqueous solutions.
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Affiliation(s)
- Leonel Vinicius Constantino
- Departamento de Química, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil
| | - Juliana Nunes Quirino
- Departamento de Química, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil
| | - Alessandra Maffei Monteiro
- Departamento de Química, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil
| | - Taufik Abrão
- Department of Electrical Engineering (DEEL), State University of Londrina (UEL), Rod. Celso Garcia Cid - PR445, s/n, Campus Universitário, P.O. Box 10.011 86057-970, Londrina, PR, Brazil
| | - Paulo Sérgio Parreira
- Departamento de Física, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil
| | - Alexandre Urbano
- Departamento de Física, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil
| | - Maria Josefa Santos
- Departamento de Química, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Paraná, 86051-990, Brazil.
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26
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Elwakeel KZ, Daher AM, Abd El-Fatah AIL, Abd El Monem H, Khalil MMH. Biosorption of lanthanum from aqueous solutions using magnetic alginate beads. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1146617] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Khalid Z. Elwakeel
- Chemistry Department, Faculty of Science, Jeddah University, Jeddah, Saudi Arabia
- Environmental Science Department, Faculty of Science, Port-Said University, Port-Said, Egypt
| | - A. M. Daher
- Egyptian Nuclear Materials Authority, El Maadi, Cairo, Egypt
| | | | - H. Abd El Monem
- Egyptian Nuclear Materials Authority, El Maadi, Cairo, Egypt
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27
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Zhang L, Zeng Y, Cheng Z. Removal of heavy metal ions using chitosan and modified chitosan: A review. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.013] [Citation(s) in RCA: 490] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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