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Abdulazeez I, Alrajjal AS, Ganiyu S, Baig N, Salhi B, AbdElazem S. Facile engineering of mesoporous silica for the effective removal of anionic dyes from wastewater: Insights from DFT and experimental studies. Heliyon 2023; 9:e21356. [PMID: 37920496 PMCID: PMC10618791 DOI: 10.1016/j.heliyon.2023.e21356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/10/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023] Open
Abstract
The discharge of dye effluents from the textile industries has become a major environmental issue due to its potential to impart serious harm to human health and aquatic life. Mesoporous silica due to its high chemical stability, large surface area, tunable morphologies, large pore volume and pore size and cost-effectiveness is commonly used to remove such dyes before recycling of the wastewater for agricultural, domestic, and industrial applications. However, the low colloidal stability, the fast aggregation of the silica particles and the slow etching of the silica surface often results in the fast deactivation of the adsorbents and limits their long-term applications. In this study, we report the functionalization of mesoporous silica (SBA-15) with ZnO nanoparticles for the effective removal of anionic dyes. The Zn-silica exhibited highly positive surface with a dipole moment of 172 Debye and high charge transfer efficacy with an energy bandgap (ΔE) of 3.35 eV as revealed by quantum chemical DFT simulations. It achieved excellent removal of Alizarin red dye reaching a removal efficiency of 99.99 % and an adsorption capacity of 50 mg/g. In the presence of heavy metal ions commonly present in wastewater (Cd2+, Co2+, Zn2+, Ni2+, Cu2+ and Hg2+), the Zn-silica maintain excellent stability, high selectivity, and reusability within 5 cycles without a significant decline in efficiency. This study thus presents an effective way of wastewater purification on cost-effective adsorbents for meeting the water scarcity demands.
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Affiliation(s)
- Ismail Abdulazeez
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Ali S. Alrajjal
- Aerospace Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Saheed Ganiyu
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
- Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Billel Salhi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Sohaib AbdElazem
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
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Synthesis, molecular dynamics simulation and adsorption study of different pollutants on functionalized mesosilica. Sci Rep 2021; 11:1967. [PMID: 33479295 PMCID: PMC7820229 DOI: 10.1038/s41598-020-80566-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/23/2020] [Indexed: 11/08/2022] Open
Abstract
Experimental and computational works were carried out on a new type of mesoporous silica. In the experimental section, functionalized hollow mesosilica spheres were prepared via a facile technique and then evaluated using some analytical techniques (FESEM, TEM, L-XRD, FTIR, BET-BJH, and TGA). The obtained results revealed that the synthesized material had hollow structure with a diamino-grafted porous shell. The molecular separation of crystal Violet (CV) and neutral Red (NR) dyes from water were investigated by adsorption process using the synthesized powder. Influence of adsorbent loading was evaluated as adsorption ability and dyes removal efficiency. Also, the obtained modeling results revealed appropriate fitting of data with non-linear Langmuir model. The theoretical studies were employed to study the adsorption and removal mechanism of cationic (CV and NR) and anionic (orange II (OII)) dyes using molecular dynamics calculations. Moreover, the simulation outcomes provided valuable information about quantum chemical properties including the HOMO-LUMO maps, chemical reactivity, global softness (σ) and hardness (η) for silica-linker-water-dyes components.
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Xie J, Yamaguchi T, Oh JM. Synthesis of a mesoporous Mg–Al–mixed metal oxide with P123 template for effective removal of Congo red via aggregation-driven adsorption. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121758] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Zeb S, Ali N, Ali Z, Bilal M, Adalat B, Hussain S, Gul S, Ali F, Ahmad R, khan S, Iqbal HM. Silica-based nanomaterials as designer adsorbents to mitigate emerging organic contaminants from water matrices. JOURNAL OF WATER PROCESS ENGINEERING 2020. [DOI: 10.1016/j.jwpe.2020.101675] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Zhang Y, Xia K, Liu X, Chen Z, Du H, Zhang X. Synthesis of cationic-modified silica gel and its adsorption properties for anionic dyes. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Salman M, Jahan S, Kanwal S, Mansoor F. Recent advances in the application of silica nanostructures for highly improved water treatment: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:21065-21084. [PMID: 31124071 DOI: 10.1007/s11356-019-05428-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
The demand for high-quality safe and clean water supply has revolutionized water treatment technologies and become a most focused subject of environmental science. Water contamination generally marks the presence of numerous toxic and harmful substances. These contaminants such as heavy metals, organic and inorganic pollutants, oil wastes, and chemical dyes are discharged from various industrial effluents and domestic wastes. Among several water treatment technologies, the utilization of silica nanostructures has received considerable attention due to their stability, sustainability, and cost-effective properties. As such, this review outlines the latest innovative approaches for synthesis and application of silica nanostructures in water treatment, apart from exploring the gaps that limit their large-scale industrial application. In addition, future challenges for improved water remediation and water quality technologies are keenly discussed.
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Affiliation(s)
- Muhammad Salman
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, People's Republic of China
| | - Shanaz Jahan
- Department of Geology, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Shamsa Kanwal
- Department of Basic Sciences, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, Rahim Yar Khan, Pakistan
| | - Farrukh Mansoor
- Department of Basic Sciences, Khwaja Fareed University of Engineering and Information Technology, Abu Dhabi Road, Rahim Yar Khan, Pakistan
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Kumar R, Sharma RK, Singh AP. Grafting of cellulose with N-isopropylacrylamide and glycidyl methacrylate for efficient removal of Ni(II), Cu(II) and Pd(II) ions from aqueous solution. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.035] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Bagheri S, Amini MM, Behbahani M, Rabiee G. Low cost thiol-functionalized mesoporous silica, KIT-6-SH, as a useful adsorbent for cadmium ions removal: A study on the adsorption isotherms and kinetics of KIT-6-SH. Microchem J 2019. [DOI: 10.1016/j.microc.2018.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Amino grafted MCM-41 as highly efficient and reversible ecofriendly adsorbent material for the Direct Blue removal from wastewater. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.060] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Vojoudi H, Badiei A, Amiri A, Banaei A, Ziarani G, Schenk-Joß K. Efficient device for the benign removal of organic pollutants from aqueous solutions using modified mesoporous magnetite nanostructures. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 2018; 113:210-219. [DOI: 10.1016/j.jpcs.2017.10.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
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Monteiro MS, de Farias RF, Chaves JAP, Santana SA, Silva HAS, Bezerra CWB. Wood (Bagassa guianensis Aubl) and green coconut mesocarp (cocos nucifera) residues as textile dye removers (Remazol Red and Remazol Brilliant Violet). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 204:23-30. [PMID: 28846892 DOI: 10.1016/j.jenvman.2017.08.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 08/17/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
In this work the efficiency of two lignocellulosic waste materials, wood residues and coconut mesocarp, were investigated as adsorbents towards two representative textile dyes (Remazol Red, RR and Remazol Brilliant Violet, RBV). The moisture, carbohydrate, protein, lipid, ash and fiber contents of both natural matrices were characterized. The materials were also characterized by infrared spectroscopy, X-ray diffractometry, scanning electron microscopy, specific surface area analysis and thermogravimetry. The adsorption of dyes was monitored by using UV-Vis spectrophotometry. It was verified that both, coconut mesocarp (CM) and wood residues can act as effective adsorbents towards the investigated dyes. It is verified that the maximum adsorption capacity ΓM (mg g-1) for RBV and RR are 7.28 and 3.97 towards CM and 0.64 and 0.71 towrads SD. Furthermore, it was verified that the adsorption is strongly pH dependent and, as a general behavior, an increase in the pH value is associated with a decrease of the total amount of adsorbed dye. The adsorption of violet dye onto coconut mesocarp is well described by the Langmuir model, while all the remazol red fitted better with the Freundlich equation.
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Affiliation(s)
- Mônica S Monteiro
- Departamento de Química, Universidade Federal do Maranhão, Av. dos Portugueses s/n, 65080-040 São Luis, MA, Brazil
| | - Robson F de Farias
- Universidade Federal do Rio Grande do Norte, Cx. Postal 1664, 59078-970 Natal, RN, Brazil
| | - José Alberto Pestana Chaves
- Departamento de Química, Universidade Federal do Maranhão, Av. dos Portugueses s/n, 65080-040 São Luis, MA, Brazil
| | - Sirlane A Santana
- Departamento de Química, Universidade Federal do Maranhão, Av. dos Portugueses s/n, 65080-040 São Luis, MA, Brazil
| | - Hildo A S Silva
- Departamento de Química, Universidade Federal do Maranhão, Av. dos Portugueses s/n, 65080-040 São Luis, MA, Brazil
| | - Cícero W B Bezerra
- Departamento de Química, Universidade Federal do Maranhão, Av. dos Portugueses s/n, 65080-040 São Luis, MA, Brazil.
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Banaei A, Samadi S, Karimi S, Vojoudi H, Pourbasheer E, Badiei A. Synthesis of silica gel modified with 2,2′-(hexane-1,6-diylbis(oxy)) dibenzaldehyde as a new adsorbent for the removal of Reactive Yellow 84 and Reactive Blue 19 dyes from aqueous solutions: Equilibrium and thermodynamic studies. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.06.044] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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13
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Banaei A, Ebrahimi S, Vojoudi H, Karimi S, Badiei A, Pourbasheer E. Adsorption equilibrium and thermodynamics of anionic reactive dyes from aqueous solutions by using a new modified silica gel with 2,2′-(pentane-1,5-diylbis(oxy))dibenzaldehyde. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.04.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Zwitter ionic modification of cobalt-ferrite nanofiber for the removal of anionic and cationic dyes. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.07.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Mahmoodi NM. Dendrimer functionalized nanoarchitecture: Synthesis and binary system dye removal. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.12.010] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Enhanced decolorization of reactive black 5 dye by active carbon sorbent-immobilized-cationic surfactant (AC-CS). J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2013.06.034] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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17
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Zarezadeh-Mehrizi M, Badiei A. Highly efficient removal of basic blue 41 with nanoporous silica. WATER RESOURCES AND INDUSTRY 2014; 5:49-57. [DOI: 10.1016/j.wri.2014.04.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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18
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Zambrano JAB, Morales GS, Ortega AÁ, Rodríguez DM, Figueiras CC. Evaluation of dyes adsorption properties of TiO2-alginate biohybrid material. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1757-899x/45/1/012021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Loganathan S, Tikmani M, Ghoshal AK. Novel pore-expanded MCM-41 for CO2 capture: synthesis and characterization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:3491-3499. [PMID: 23413982 DOI: 10.1021/la400109j] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Recently, amine-functionalized mesoporous silica materials have attracted considerable attention as a promising chemical sorbent for postcombustion CO2 capture applications. However, the grafting of amines in the conventional MCM-41 support induces the subsequent reduction of surface area and pore volume of the sorbents, affecting the CO2 adsorption-desorption kinetics significantly. To mitigate this problem, expensive pore expansion agents have been used to increase the pore size as well as the pore volume. The present study provides an innovative approach to the development of novel pore-expanded MCM-41 without the application of any swelling agent. The average pore size (~30 nm) obtained in our work is remarkably higher than the values (9 to 10 nm) reported in the literature. On the basis of the fundamental understanding of micelle properties under different alkaline conditions, a mechanism for the pore expansion process is proposed. The outcome (1.2 mmol/g) of the preliminary CO2 adsorption studies carried out on the novel support material grafted with monoamine silane is very promising.
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Affiliation(s)
- Sravanthi Loganathan
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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20
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Guerra DJL, Mello I, Resende R, Silva RAS. Kinetics and thermodynamics of Cr(VI) ion adsorption onto organo-bentonite from the Amazon region. REACTION KINETICS MECHANISMS AND CATALYSIS 2012. [DOI: 10.1007/s11144-012-0519-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Wu YN, Zhang B, Li F, Zhu W, Xu D, Hannam P, Li G. Electrospun fibrous mats as a skeleton for fabricating hierarchically structured materials as sorbents for Cu2+. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm13874c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Taha AA, Qiao J, Li F, Zhang B. Preparation and application of amino functionalized mesoporous nanofiber membrane via electrospinning for adsorption of Cr3+ from aqueous solution. J Environ Sci (China) 2012; 24:610-616. [PMID: 22894094 DOI: 10.1016/s1001-0742(11)60806-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Novel amino (-NH2) functionalized mesoporous polyvinyl pyrrolidone (PVP)/SiO2 composite nanofiber membranes were fabricated by a one-step electrospinning method using poly (vinyl alcohol) and tetraethyl orthosilicate (TEOS) mixed with cationic surfactant, cetyltrimethyl ammonium bromide (CTAB) as the structure directing agent. Ureidopropyltriethoxysilane was used for functionalization of the internal pore surfaces. The membranes were characterized by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) images, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), element analyzer and N2 adsorption-desorption isotherms. The nanofiber diameters, average pore diameters and surface areas were 100-700 nm, 2.86 nm and 873.62 m2/g, respectively. These mesoporous membranes functionalized with -NH2 groups exhibited very high adsorptions properties based on the adsorption of Cr3+ from an aqueous solution. Equilibrium adsorption was achieved after approximately 20 min and more than 97% of chromium ions in the solution were removed. The membrane could be regenerated through acidification.
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Affiliation(s)
- Ahmed A Taha
- College of Environmental Science and Engineering, UNEP Tongji Institute of Environment for Sustainable Development, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China
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Cardoso NF, Lima EC, Pinto IS, Amavisca CV, Royer B, Pinto RB, Alencar WS, Pereira SFP. Application of cupuassu shell as biosorbent for the removal of textile dyes from aqueous solution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2011; 92:1237-1247. [PMID: 21195535 DOI: 10.1016/j.jenvman.2010.12.010] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2010] [Revised: 11/15/2010] [Accepted: 12/12/2010] [Indexed: 05/30/2023]
Abstract
The cupuassu shell (Theobroma grandiflorum) which is a food residue was used in its natural form as biosorbent for the removal of C.I. Reactive Red 194 and C.I. Direct Blue 53 dyes from aqueous solutions. This biosorbent was characterized by infrared spectroscopy, scanning electron microscopy, and nitrogen adsorption/desorption curves. The effects of pH, biosorbent dosage and shaking time on biosorption capacities were studied. In acidic pH region (pH 2.0) the biosorption of the dyes were favorable. The contact time required to obtain the equilibrium was 8 and 18 h at 298 K, for Reactive Red 194 and Direct Blue 53, respectively. The Avrami fractionary-order kinetic model provided the best fit to experimental data compared with pseudo-first-order, pseudo-second-order and chemisorption kinetic adsorption models. The equilibrium data were fitted to Langmuir, Freundlich, Sips and Radke-Prausnitz isotherm models. For both dyes the equilibrium data were best fitted to the Sips isotherm model.
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Affiliation(s)
- Natali F Cardoso
- Institute of Chemistry, Federal University of Rio Grande do Sul, UFRGS, Av. Bento Gonçalves 9500, Caixa Postal 15003, CEP 91501-970, Porto Alegre, RS, Brazil
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Li D, Liu Q, Ma S, Chang Z, Zhang L. Adsorption of Alizarin Red S onto Nano-Sized Silica Modified with γ-Aminopropyltriethoxysilane. ADSORPT SCI TECHNOL 2011. [DOI: 10.1260/0263-6174.29.3.289] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Deliang Li
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Qing Liu
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Shuanglong Ma
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Zhixian Chang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Ling Zhang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
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Idris SA, Davidson CM, McManamon C, Morris MA, Anderson P, Gibson LT. Large pore diameter MCM-41 and its application for lead removal from aqueous media. JOURNAL OF HAZARDOUS MATERIALS 2011; 185:898-904. [PMID: 21035253 DOI: 10.1016/j.jhazmat.2010.09.105] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 09/24/2010] [Accepted: 09/28/2010] [Indexed: 05/30/2023]
Abstract
A room temperature method to create large pore size and pore volume ordered mesoporous silica (MCM-41) is demonstrated. Template removal was achieved with a microwave digestion procedure using a solution of nitric acid and hydrogen peroxide. The silica product exhibited an ordered hexagonal mesostructure, large pore volume (up to 0.99 cm(3)/g), and large pore size (up to 6.74 nm) indicating its potential as a high capacity adsorbent. Surface modification, to enhance the ability of the material to extract potentially toxic metals (PTMs) from water was performed using different amino- and mercapto-functional groups. This paper reports on the extraction of lead ions from aqueous solution to demonstrate the material's significant improvement in adsorption capacity (up to 1000 μmol g(-1) for lead). Moreover, methods have been developed to regenerate the sorbent allowing 100% recovery of Pb and reuse of the sorbent material in subsequent extractions. The performance of the material was also demonstrated for environmental samples containing relatively high concentrations (ppmv) of mixed metal ions reducing them to lower values (<100 ppbv) indicating that the sorbent may have applicability for environmental remediation of polluted water.
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Affiliation(s)
- Salah A Idris
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, United Kingdom
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Wu S, Li F, Wang H, Fu L, Zhang B, Li G. Effects of poly (vinyl alcohol) (PVA) content on preparation of novel thiol-functionalized mesoporous PVA/SiO2 composite nanofiber membranes and their application for adsorption of heavy metal ions from aqueous solution. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.10.015] [Citation(s) in RCA: 143] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Walcarius A, Mercier L. Mesoporous organosilica adsorbents: nanoengineered materials for removal of organic and inorganic pollutants. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b924316j] [Citation(s) in RCA: 473] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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28
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Yoshitake H. Design of functionalization and structural analysis of organically-modified siliceous oxides with periodic structures for the development of sorbents for hazardous substances. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b927567c] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Chaves JAP, Santana LAA, Schultz MS, Silva HAS, Penha RS, Vieira AP, de Souza AG, Bezerra CWB. Removal of the Textile Dye Indanthrene Olive Green from Aqueous Solution Using Chitosan. ADSORPT SCI TECHNOL 2009. [DOI: 10.1260/0263-6174.27.10.947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- José Alberto P. Chaves
- Colégio Universitário, Universidade Federal do Maranhão, 65080-040, São Luís, MA, Brazil
| | | | - Mário S. Schultz
- Núcleo de Pesquisas Ecológicas de Macaé, Universidade Federal do Rio de Janeiro, Macaé, RJ, Brazil
| | - Hildo Antônio S. Silva
- Departamento de Química/CCET, Universidade Federal do Maranhão, 65080-040, São Luís, MA, Brazil
| | - Rosiane S. Penha
- Departamento de Química/CCET, Universidade Federal do Maranhão, 65080-040, São Luís, MA, Brazil
| | - Adriana P. Vieira
- Departamento de Química/CCET, Universidade Federal do Maranhão, 65080-040, São Luís, MA, Brazil
| | - Antônio G. de Souza
- Departamento de Química/CCEN, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
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Guerra DL, Viana RR, Airoldi C. Adsorption of thorium cation on modified clays MTTZ derivative. JOURNAL OF HAZARDOUS MATERIALS 2009; 168:1504-1511. [PMID: 19372006 DOI: 10.1016/j.jhazmat.2009.03.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 03/08/2009] [Accepted: 03/10/2009] [Indexed: 05/27/2023]
Abstract
Diquite (D) and bentonite (B) mineral samples from the Amazon region, Brazil, were modified by MTTZ derivative (5-mercapto-1-methyltetrazole) using heterogeneous route. These materials were characterized by textural and elemental analysis, transmission electron microscopy (TEM), power X-ray diffraction and (13)C NMR spectroscopy. The chemically modified clay (D(MTTZ) and B(MTTZ)) samples showed modification of its physical-chemical properties including: specific area 41.4 (B) to 398.5m(2)g(-1) (B(MTTZ)) and 25.0 (D) to 178.8m(2)g(-1) (D(MTTZ)). The adsorption experiments performed under batch process with Th(IV) concentration, pH and contact time as variables. The ability of these materials to remove thorium from aqueous solution was followed by a series of adsorption isotherms adjusted to a Sips equation at room temperature and pH 2.0, with variable concentration of Th(IV). The maximum number of moles adsorbed was determined to be 10.45 x 10(-2) and 12.76 x 10(-2)mmol g(-1) for D(MTTZ) and B(MTTZ), respectively. The energetic effects (Delta(int)H degrees , Delta(int)G degrees and Delta(int)S degrees ) caused by thorium cation adsorption were determined through calorimetric titrations.
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Affiliation(s)
- Denis L Guerra
- Chemistry Institute, State University of Campinas, São Paulo, Brazil.
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