201
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A. Ahmed S, El-Roudi AM, Salem AA. Removal of Mn(II) from Ground Water by Solid Wastes of Sugar Industry. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/jest.2015.338.351] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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202
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Nouri L, Bendjama Z, Hamitouche AE, Boumaza S, Kaouah F, Trari M, Riad L. Optimization of a novel biocomposite synthesis ( Ammi Visnaga extraction waste/alginate) for Cd 2+ biosorption. Int J Biol Macromol 2015; 80:588-95. [DOI: 10.1016/j.ijbiomac.2015.07.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 07/08/2015] [Accepted: 07/12/2015] [Indexed: 10/23/2022]
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203
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Gaya UI, Otene E, Abdullah AH. Adsorption of aqueous Cd(II) and Pb(II) on activated carbon nanopores prepared by chemical activation of doum palm shell. SPRINGERPLUS 2015; 4:458. [PMID: 26339560 PMCID: PMC4550633 DOI: 10.1186/s40064-015-1256-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 08/17/2015] [Indexed: 11/10/2022]
Abstract
Non-uniformly sized activated carbons were derived from doum palm shell, a new precursor, by carbonization in air and activation using KOH, NaOH and ZnCl2. The activated carbon fibres were characterised by X-ray diffraction, N2 adsorption-desorption, scanning electron microscopy, particle size analysis and evaluated for Cd(II) and Pb(II) removal. The 40-50 nm size, less graphitic, mesoporous NaOH activated carbon yielded high adsorption efficiency, pointing largely to the influence surface area. The performance of the KOH based activated carbon was arguably explained for the first time in terms of crystallinity. The efficiencies of the mesoporous ZnCl2-formulated activated carbon diminished due to the presence of larger particles. Batch adsorption of divalent metals revealed dependence on adsorbent dose, agitation time, pH and adsorbate concentrations with high adsorption efficiencies at optimum operating parameters. The equilibrium profiles fitted Langmuir and Freundlich isotherms, and kinetics favoured pseudo-second order model. The study demonstrated the practicability of the removal of alarming levels of cadmium and lead ions from industrial effluents.
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Affiliation(s)
- Umar Ibrahim Gaya
- Department of Pure and Industrial Chemistry, Bayero University Kano, Kano, 700241 Kano State Nigeria
| | - Emmanuel Otene
- Department of Pure and Industrial Chemistry, Bayero University Kano, Kano, 700241 Kano State Nigeria
| | - Abdul Halim Abdullah
- Department of Chemistry, Universiti Putra Malaysia, 43400 Serdang, Selangor D.E. Malaysia ; Advanced Material and Nanotechnology Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor D.E. Malaysia
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204
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Xue YP, Shu XR, Zou SP, Wang YJ, Zheng YG. Efficient recovery of 1-cyanocyclohexaneacetic acid by ion-exchange process. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2015.1078359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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205
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Synthesis of poly(acrylic acid–maleic acid)SiO2/Al2O3 as novel composite material for cesium removal from acidic solutions. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4349-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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206
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Removal of Co(II) from aqueous solutions by sulfonated magnetic multi-walled carbon nanotubes. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0072-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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207
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Wang H, Yuan X, Zeng G, Wu Y, Liu Y, Jiang Q, Gu S. Three dimensional graphene based materials: Synthesis and applications from energy storage and conversion to electrochemical sensor and environmental remediation. Adv Colloid Interface Sci 2015; 221:41-59. [PMID: 25983012 DOI: 10.1016/j.cis.2015.04.005] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 12/16/2014] [Accepted: 04/20/2015] [Indexed: 12/14/2022]
Abstract
With superior electrical/thermal conductivities and mechanical properties, two dimensional (2D) graphene has become one of the most intensively explored carbon allotropes in materials science. To exploit the inherent properties fully, 2D graphene sheets are often fabricated or assembled into functional architectures (e.g. hydrogels, aerogels) with desired three dimensional (3D) interconnected porous microstructures. The 3D graphene based materials show many excellent characteristics including increased active material per projected area, accessible mass transport or storage, electro/thermo conductivity, chemical/electrochemical stability and flexibility. It has paved the way for practical requirements in electronics, adsorption as well as catalysis related system. This review shows an extensive overview of the main principles and the recent synthetic technologies about fabricating various innovative 3D graphene based materials. Subsequently, recent progresses in electrochemical energy devices (lithium/lithium ion batteries, supercapacitors, fuel cells and solar cells) and hydrogen energy generation/storage are explicitly discussed. The up to date advances for pollutants detection and environmental remediation are also reviewed. Finally, challenges and outlooks in materials development for energy and environment are suggested.
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208
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Janyasuthiwong S, Phiri SM, Kijjanapanich P, Rene ER, Esposito G, Lens PNL. Copper, lead and zinc removal from metal-contaminated wastewater by adsorption onto agricultural wastes. ENVIRONMENTAL TECHNOLOGY 2015; 36:3071-3083. [PMID: 26001037 DOI: 10.1080/09593330.2015.1053537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
The use of agricultural wastes (groundnut shell, orange and banana peel, rice husk, coconut husk and Wawa tree saw dust) as potential cost-effective adsorbent for heavy metal removal from wastewater was evaluated. The effect of pH (2.0-6.0), adsorbent dosage (0.6-2.2 g), contact time (10-130 min) and initial concentration (Pb: 5-105 mg/L, Cu and Zn: 2.5-52.7 mg/L) on the metal removal efficiency and uptake capacity were investigated using response surface methodology to optimize the process conditions. Groundnut shell showed a high potential to remove Cu, Pb and Zn from synthetic wastewater. The highest removal efficiencies with groundnut as the adsorbent were 85% at pH 5.0 for Cu and 98% at pH 3.0 for Pb and Zn. The optimum conditions obtained were 2.5 g adsorbent with 40.7 mg/L Cu at pH 4.4 and 64 min contact time, 2.5 g adsorbent with 196.1 mg/L Pb at pH 5.6 and 60 min contact time and 3.1 g adsorbent with 70.2 mg/L Zn at pH 4.3 and 50 min contact time, for Cu, Pb and Zn, respectively. The regeneration of the groundnut shell was possible for a maximum of three cycles using 0.2 M HCl as the desorbing solution without any significant change in the adsorbing efficiency.
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Affiliation(s)
- Suthee Janyasuthiwong
- a Department of Environmental Engineering and Water Technology , UNESCO-IHE Institute for Water Education , Westvest 7, 2611 AX Delft , The Netherlands
| | - Sheila M Phiri
- a Department of Environmental Engineering and Water Technology , UNESCO-IHE Institute for Water Education , Westvest 7, 2611 AX Delft , The Netherlands
| | - Pimluck Kijjanapanich
- a Department of Environmental Engineering and Water Technology , UNESCO-IHE Institute for Water Education , Westvest 7, 2611 AX Delft , The Netherlands
- b Department of Environmental Engineering, Faculty of Engineering , Chiang Mai University , Chiang Mai 50200 , Thailand
| | - Eldon R Rene
- a Department of Environmental Engineering and Water Technology , UNESCO-IHE Institute for Water Education , Westvest 7, 2611 AX Delft , The Netherlands
| | - Giovanni Esposito
- c Department of Civil and Mechanical Engineering , University of Cassino and Southern Lazio , Via Di Biasio, 43, Cassino , FR 03043 , Italy
| | - Piet N L Lens
- a Department of Environmental Engineering and Water Technology , UNESCO-IHE Institute for Water Education , Westvest 7, 2611 AX Delft , The Netherlands
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209
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Zhao Y, Pan Y, Liu W, Zhang L. Removal of Heavy Metal Ions from Aqueous Solutions by Adsorption onto ZIF-8 Nanocrystals. CHEM LETT 2015. [DOI: 10.1246/cl.150137] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yingjie Zhao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University
| | - Yichang Pan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University
| | - Wei Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University
| | - Lixiong Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University
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210
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Aliakbarian B, Casazza AA, Perego P. Kinetic and Isotherm Modelling of the Adsorption of
Phenolic Compounds from Olive Mill Wastewater onto Activated Carbon. Food Technol Biotechnol 2015; 53:207-214. [PMID: 27904350 DOI: 10.17113/ftb.53.02.15.3790] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The adsorption of phenolic compounds from olive oil wastewater by commercial activated carbon was studied as a function of adsorbent quantity and temperature. The sorption kinetics and the equilibrium isotherms were evaluated. Under optimum conditions (8 g of activated carbon per 100 mL), the maximum sorption capacity of activated carbon expressed as mg of caffeic acid equivalent per g of activated carbon was 35.8 at 10 °C, 35.4 at 25 °C and 36.1 at 40 °C. The pseudo-second-order model was considered as the most suitable for kinetic results, and Langmuir isotherm was chosen to better describe the sorption system. The results confirmed the efficiency of activated carbon to remove almost all phenolic compound fractions from olive mill effluent. The preliminary results obtained will be used in future studies. The carbohydrate fraction of this upgraded residue could be employed to produce bioethanol, and adsorbed phenolic compounds can be recovered and used in different industries.
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Affiliation(s)
- Bahar Aliakbarian
- Department of Civil, Chemical and Environmental Engineering, University of Genoa,
Via Opera Pia 15, IT-16145 Genoa, Italy
| | - Alessandro A Casazza
- Department of Civil, Chemical and Environmental Engineering, University of Genoa,
Via Opera Pia 15, IT-16145 Genoa, Italy
| | - Patrizia Perego
- Department of Civil, Chemical and Environmental Engineering, University of Genoa,
Via Opera Pia 15, IT-16145 Genoa, Italy
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211
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Jafari SA, Jamali A, Hosseini A. Cadmium removal from aqueous solution by brown seaweed, Sargassum angustifolium. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0013-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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212
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Sribudda D, Sunsandee N, Ramakul P, Pancharoen U, Phatanasri S. Separation of Cd(II) from industrial wastewater via HFSLM: Equilibrium, kinetic and thermodynamic investigation. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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213
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A new, low-cost adsorbent: Preparation, characterization, and adsorption behavior of Pb(II) and Cu(II). J Colloid Interface Sci 2015; 445:294-302. [DOI: 10.1016/j.jcis.2014.12.099] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/31/2014] [Accepted: 12/31/2014] [Indexed: 11/23/2022]
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214
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Pawluk K, Fronczyk J. Evaluation of single and multilayered reactive zones for heavy metals removal from stormwater. ENVIRONMENTAL TECHNOLOGY 2015; 36:1576-1583. [PMID: 25496055 DOI: 10.1080/09593330.2014.997299] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, the ability of granular activated carbon (GAC), silica spongolite (SS) and zeolite (Z) to remove heavy metals from aqueous solutions has been investigated through column tests. The breakthrough times for a mobile tracer that does not sorb to the material for SS, GAC and layered SS, Z and GAC were as follows: 2.54×10(4) s, 2.38×10(4) s and 3.02×10(4) s. The breakthrough time (tbR) for Ni was in the range from tbR=1.70×10(6) s for SS, through tbR=3.98×10(5) s for the layered bed, to tbR=8.75×10(5) s for GAC. The breakthrough time for Cd was in the range from tbR=1.83×10(5) s for GAC to tbR=1.30×10(6) s for SS, Z, GAC. During the experiment, the concentration of Cd, Cu, Pb and Zn in the solution from a column filled with construction aggregate and the concentration of Pb, and Cu in a filtrate from the column filled with several materials was close to zero. The reduction in metal ions removal was due to high pH values of the solution (above 8.00). In addition, during the testing period, an increase in Cd and Zn concentrations in the filtrate from the column filled with the layered bed was observed, but at the end of the experiment the concentrations did not reach the maximum values. The test results suggest that the multilayered permeable reactive barrier is the most effective technology for long time effective removal of heavy metals.
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Affiliation(s)
- Katarzyna Pawluk
- a Department of Geotechnical Engineering , Warsaw University of Life Sciences - SGGW , Warsaw , Poland
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215
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216
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Bazrafshan E, Mostafapour FK, Esmaelnejad M, Ebrahimzadeh GR, Mahvi AH. Concentration of heavy metals in surface water and sediments of Chah Nimeh water reservoir in Sistan and Baluchestan province, Iran. DESALINATION AND WATER TREATMENT 2015. [DOI: 10.1080/19443994.2015.1027958] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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217
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Sukpreabprom H, Arqueropanyo OA, Naksata W, Sooksamiti P, Janhom S. Single and binary adsorption of Cd (II) and Zn (II) ions from aqueous solutions onto bottom ash. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-014-0309-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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218
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Shaker MA. Thermodynamics and kinetics of bivalent cadmium biosorption onto nanoparticles of chitosan-based biopolymers. J Taiwan Inst Chem Eng 2015. [DOI: 10.1016/j.jtice.2014.10.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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219
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Khan S, Kazi TG, Soylak M. Ionic Liquid-Based Ultrasound-Assisted Emulsification Microextraction of Cadmium in Biological Samples: Optimization by a Multivariate Approach. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.999280] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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220
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Fałtynowicz H, Kaczmarczyk J, Kułażyński M. Preparation and characterization of activated carbons from biomass material – giant knotweed (Reynoutria sachalinensis). OPEN CHEM 2015. [DOI: 10.1515/chem-2015-0128] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractActivated carbons from biomass material of giant knotweed Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai were obtained. Use of this plant for manufacturing activated carbon has not been studied yet. Therefore, the first activated carbons of giant knotweed origin are described. Both physicochemical (by steam and CO2) and chemical (by KOH) activation methods were applied. Influences of temperature (500, 600, 700 and 800°C), burn-off [10, 25 and 50 wt. % (daf)] and KOH concentration on pores surface area and volume distribution of the obtained activated carbons were explored. Porosity of the elaborated sorbents was determined by benzene and carbon dioxide sorption measurements. Sorbents obtained by steam activation were micro- and mesoporous with surface area and volume of pores increasing with temperature and burn-off to V = 0.351 cm3 g-1 and S = 768 m2 g-1 at 800°C at 50% burn-off. Carbon dioxide activation resulted with notably microporous activated carbons with porous texture parameters also increasing with burn-off to V = 0.286 cm3 g-1 and S = 724 m2 g-1 at 50% burn-off. The highest BET surface area of 2541 m2 g-1 was achieved when chemical (KOH) activation was performed using KOH to char ratio 4:1.
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221
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Dos Santos MBP, Leal KZ, Oliveira FJS, Sella SM, Vieira MD, Marques EMD, Gomes VAC. Efficient removal of mercury from aqueous solutions and industrial effluent. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2015; 50:1230-1240. [PMID: 26301849 DOI: 10.1080/10934529.2015.1055147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The objective of this study was to examine the ability of a solid waste produced during beneficiation of ornamental rocks to remove mercury (Hg) from an industrial effluent and aqueous solutions under various conditions. Batch studies have been carried out by observing the effects of pH, concentration of the adsorbate, contact time, and so on. Various sorption isotherm models such as Langmuir, Freundlich, and Tóth have been applied for the adsorbent. Film and intraparticle diffusion were both found to be rate-limiting steps. Adsorption was properly described by the Freundlich model (capacity constant of 0.3090 (mg g(-1))(mg L(-1))(-1/n) and adsorption intensity indicator of 2.2939), which indicated a favorable sorption and encouraged subsequent studies for treatment of Hg-containing industrial effluent. Industrial effluent treatment efficiency reached Hg removals greater than 90% by using ornamental rock solid waste (ORSW). Besides, desorption studies indicated that the maximum recovery of mercury was 100 ± 2% for 1 mol L(-1) HNO3 and 74 ± 8% for 0.1 mol L(-1) HNO3. The ORSW could be reused thrice without significant difference on the Hg removal rate from industrial effluent. These findings place ORSW as a promising efficient and low-cost adsorbent for the removal of Hg from aqueous solutions and industrial effluent.
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Affiliation(s)
- Maria B P Dos Santos
- a Institute of Chemistry, Federal Fluminense University, Campus of Valonguinho , Niterói, Rio de Janeiro , Brazil
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222
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Wei W, Li A, Yang J, Ma F, Wu D, Xing J, Zhou X, Zhao D. Synergetic effects and flocculation behavior of anionic polyacrylamide and extracellular polymeric substrates extracted from Klebsiella sp. J1 on improving soluble cadmium removal. BIORESOURCE TECHNOLOGY 2015; 175:34-41. [PMID: 25459801 DOI: 10.1016/j.biortech.2014.10.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/08/2014] [Accepted: 10/09/2014] [Indexed: 06/04/2023]
Abstract
The performance and flocs properties in removing soluble cadmium of the dual flocculant APAM-MFX (anionic polyacrylamide APAM used in combination with extracellular polymeric substrates extracted from Klebsiella sp. J1 MFX) were studied compared with the performance of using bioflocculant alone. In addition, adsorption isotherms and kinetic process for Cd(II) adsorption onto APAM-MFX were investigated. APAM-MFX synergistically improved the Cd(II) removal percentage by 82.68%. Characteristic flocs formed by APAM-MFX indicated the synergetic effects resulted from additional bridging bonds between APAM and MFX. Adsorption process was best described by the Freundlich isotherm and pseudo-second order kinetic model. The mean free energy E (8.39-8.57kJmol(-1)) and activation energy Ea (45.09kJmol(-1)) were determined. Based on the results, the main mechanism of Cd(II) removal by APAM-MFX could be chemical ion exchange, and the liquid-film diffusion step was the rate-limiting step.
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Affiliation(s)
- Wei Wei
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Ang Li
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China.
| | - Jixian Yang
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China.
| | - Fang Ma
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Dan Wu
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Jie Xing
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Xianjiao Zhou
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Dan Zhao
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
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223
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Xu M, Hadi P, Ning C, Barford J, An KJ, McKay G. Aluminosilicate-based adsorbent in equimolar and non-equimolar binary-component heavy metal removal systems. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2015; 72:2166-2178. [PMID: 26676004 DOI: 10.2166/wst.2015.440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cadmium (Cd) and lead (Pb) are toxic heavy metals commonly used in various industries. The simultaneous presence of these metals in wastewater amplifies the toxicity of wastewater and the complexity of the treatment process. This study has investigated the selective behavior of an aluminosilicate-based mesoporous adsorbent. It has been demonstrated that when equimolar quantities of the metals are present in wastewater, the adsorbent uptakes the Pb²⁺ ions selectively. This has been attributed to the higher electronegativity value of Pb²⁺ compared to Cd²⁺ which can be more readily adsorbed on the adsorbent surface, displacing the Cd²⁺ ions. The selectivity can be advantageous when the objective is the separation and reuse of the metals besides wastewater treatment. In non-equimolar solutions, a complete selectivity can be observed up to a threshold Pb²⁺ molar ratio of 30%. Below this threshold value, the Cd²⁺ and Pb²⁺ ions are uptaken simultaneously due to the abundance of Cd²⁺ ions and the availability of adsorption sites at very low Pb²⁺ molar ratios. Moreover, the total adsorption capacities of the adsorbent for the multi-component system have been shown to be in the same range as the single-component system for each metal ion which can be of high value for industrial applications.
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Affiliation(s)
- Meng Xu
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR E-mail:
| | - Pejman Hadi
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR E-mail: ; School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Hong Kong SAR
| | - Chao Ning
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR E-mail:
| | - John Barford
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR E-mail:
| | - Kyoung Jin An
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Hong Kong SAR
| | - Gordon McKay
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong SAR E-mail: ; Division of Sustainable Development, College of Science, Engineering and Technology, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
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224
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Jia YY, Zhang YH, Xu J, Feng R, Zhang MS, Bu XH. A high-performance “sweeper” for toxic cationic herbicides: an anionic metal–organic framework with a tetrapodal cage. Chem Commun (Camb) 2015; 51:17439-42. [DOI: 10.1039/c5cc07249b] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
High efficiency adsorption and removal of toxic herbicides in an anionic metal–organic framework.
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Affiliation(s)
- Yan-Yuan Jia
- Department of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Ying-Hui Zhang
- School of Materials Science and Engineering
- TKL of Metal- and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Jian Xu
- School of Materials Science and Engineering
- TKL of Metal- and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Rui Feng
- School of Materials Science and Engineering
- TKL of Metal- and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Ming-Shi Zhang
- Department of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Xian-He Bu
- Department of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
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225
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Choi YW, Lee JJ, Kim C. A highly selective fluorescent chemosensor based on a quinoline derivative for zinc ions in pure water. RSC Adv 2015. [DOI: 10.1039/c5ra09954d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A water-soluble fluorescent sensor with a low detection limit could be used to detect and quantify Zn2+in water samples.
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Affiliation(s)
- Ye Won Choi
- Department of Fine Chemistry and Department of Interdisciplinary Bio IT Materials
- Seoul National University of Science and Technology
- Seoul 139-743
- Korea
| | - Jae Jun Lee
- Department of Fine Chemistry and Department of Interdisciplinary Bio IT Materials
- Seoul National University of Science and Technology
- Seoul 139-743
- Korea
| | - Cheal Kim
- Department of Fine Chemistry and Department of Interdisciplinary Bio IT Materials
- Seoul National University of Science and Technology
- Seoul 139-743
- Korea
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226
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Rakchaiyawan U, Kulratkitiwong Y, Piyamongkala K. Kinetics Adsorption of Silver Ion by Blend Chitosan-Polyvinyl Alcohol Resin. ACTA ACUST UNITED AC 2015. [DOI: 10.7763/ijesd.2015.v6.675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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227
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Lee ME, Park JH, Chung JW, Lee CY, Kang S. Removal of Pb and Cu ions from aqueous solution by Mn 3 O 4 -coated activated carbon. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2014.03.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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228
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Bohli T, Ouederni A, Fiol N, Villaescusa I. Evaluation of an activated carbon from olive stones used as an adsorbent for heavy metal removal from aqueous phases. CR CHIM 2015. [DOI: 10.1016/j.crci.2014.05.009] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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229
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Sahu MK, Patel RK. Removal of safranin-O dye from aqueous solution using modified red mud: kinetics and equilibrium studies. RSC Adv 2015. [DOI: 10.1039/c5ra15780c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adsorption of safranin-O dye on SDS modified red mud at different pH.
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Affiliation(s)
- Manoj Kumar Sahu
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Raj Kishore Patel
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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230
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Liu L, Zhang Y, He Y, Xie Y, Huang L, Tan S, Cai X. Preparation of montmorillonite-pillared graphene oxide with increased single- and co-adsorption towards lead ions and methylene blue. RSC Adv 2015. [DOI: 10.1039/c4ra13008a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Montmorillonite-pillared graphene oxide was used as adsorbent with increased single- and co-adsorption towards lead ions and methylene blue.
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Affiliation(s)
- Lu Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Yaru Zhang
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Yanjin He
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Yongfen Xie
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Langhuan Huang
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Shaozao Tan
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- P. R. China
| | - Xiang Cai
- Department of Light Chemical Engineering
- Guangdong Polytechnic
- Foshan 528041
- P. R. China
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231
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Evaluation of Acacia nilotica as a non conventional low cost biosorbent for the elimination of Pb(II) and Cd(II) ions from aqueous solutions. ARAB J CHEM 2014. [DOI: 10.1016/j.arabjc.2012.03.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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232
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Song J, Liu M, Zhang Y. Ion-exchange adsorption of calcium ions from water and geothermal water with modified zeolite A. AIChE J 2014. [DOI: 10.1002/aic.14671] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Junchao Song
- School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
| | - Mingyan Liu
- School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
- State Key Laboratory of Chemical Engineering (Tianjin University); Tianjin 300072 China
| | - Yang Zhang
- School of Chemical Engineering and Technology, Tianjin University; Tianjin 300072 China
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233
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González P, Pliego-Cuervo Y. Adsorption of Cd(II), Hg(II) and Zn(II) from aqueous solution using mesoporous activated carbon produced from Bambusa vulgaris striata. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2014.02.013] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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234
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Shvets O, Belyakova L. Synthesis, characterization and sorption properties of silica modified with some derivatives of β-cyclodextrin. JOURNAL OF HAZARDOUS MATERIALS 2014; 283:643-656. [PMID: 25464306 DOI: 10.1016/j.jhazmat.2014.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 09/26/2014] [Accepted: 10/12/2014] [Indexed: 06/04/2023]
Abstract
Nanoporous β-cyclodextrin-containing silicas which differ by functional substituents of wide edge of attached cyclic oligosaccharide molecules (alcohol, bromoacetyl, thiosemicarbazidoacetyl groups) have been synthesized. The structure and chemical composition of the surface, porosity of obtained materials, their chemical and thermal stability have been characterized by scanning electron microscopy, IR spectroscopy, thermogravimetry, nitrogen ad-desorption, elemental and chemical analyses of solid surface. Sorption of trace amounts of cadmium (II) in the presence of ten- and hundred-fold excess of hardness salts by synthesized organosilicas has been studied. It has been demonstrated that the sorption equilibrium is reached after 30 min. The sorption of trace amounts of cadmium (II) from multi-component solutions does not decrease, but even increases in the presence of hardness salts, simulating soft and hard water. Coefficients of distribution and selectivity as well as the sorption parameters of Langmuir and Freundlich equations have been calculated. It was found that the driving force of cadmium (II) sorption on the surface of functional β-cyclodextrin-containing silicas is the formation of inclusion complexes "β-cyclodextrin-nitrate-anion". It has been proved the formation of supramolecular structures on the surface of synthesized organosilicas as a result of cadmium (II) sorption. Chemical composition of supermolecules depends on the structure of surface active centers.
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Affiliation(s)
- Oleksandra Shvets
- Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., Kiev 03164, Ukraine.
| | - Lyudmila Belyakova
- Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., Kiev 03164, Ukraine.
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235
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Zhang X, Zhao J, Cheng L, Lu C, Wang Y, He X, Zhang W. Acrylic acid grafted and acrylic acid/sodium humate grafted bamboo cellulose nanofibers for Cu2+adsorption. RSC Adv 2014. [DOI: 10.1039/c4ra08307e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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236
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Zhong QQ, Yue QY, Li Q, Gao BY, Xu X. Removal of Cu(II) and Cr(VI) from wastewater by an amphoteric sorbent based on cellulose-rich biomass. Carbohydr Polym 2014; 111:788-96. [DOI: 10.1016/j.carbpol.2014.05.043] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 11/27/2022]
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237
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Gelain L, Antunes M, Crespo JS, Giovanela M. Removal of Zinc(II) from Aqueous Solutions using an Eco-Friendly Biosorbent Originating from the Winery Industry. SEP SCI TECHNOL 2014. [DOI: 10.1080/01496395.2014.913626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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238
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Yang S, Li L, Pei Z, Li C, Lv J, Xie J, Wen B, Zhang S. Adsorption kinetics, isotherms and thermodynamics of Cr(III) on graphene oxide. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.05.062] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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239
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Varsihini C JS, Das D, Das N. Optimization of parameters for cerium(III) biosorption onto biowaste materials of animal and plant origin using 5-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies. J RARE EARTH 2014. [DOI: 10.1016/s1002-0721(14)60136-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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240
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Development of nano-hydroxyapatite/chitosan composite for cadmium ions removal in wastewater treatment. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.10.008] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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241
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Madhumala M, Madhavi D, Sankarshana T, Sridhar S. Recovery of hydrochloric acid and glycerol from aqueous solutions in chloralkali and chemical process industries by membrane distillation technique. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2014.02.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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242
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Guru PS, Dash S. Sorption on eggshell waste--a review on ultrastructure, biomineralization and other applications. Adv Colloid Interface Sci 2014; 209:49-67. [PMID: 24456801 DOI: 10.1016/j.cis.2013.12.013] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 12/19/2013] [Accepted: 12/19/2013] [Indexed: 11/26/2022]
Abstract
The structure, adsorption behavior and applications of eggshell waste materials have been reviewed. The ultrastructure of eggshell particles has been discussed to understand the pore structure as well as the surface geometry of the materials leading to its multifarious applicability. Besides, the ultrastructure studies give full information regarding the chemical constituents of egghell particles as well as eggshell membranes. The process of biomineralization in living organisms, their consequent effect of controlling the formation of inorganic-organic composites propelling their application in biomimetic designing of advanced composites with optimized novel properties leading to advances in materials design have been discussed. Utilization of eggshell waste materials for the removal of organic dyes and heavy inorganic ions has been reviewed with suitable models for understanding their adsorption quality and capacity. The applications of these materials in various fields of research have been extensively discussed.
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243
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Yakout SM, Hassan HS. Adsorption characteristics of sol gel-derived zirconia for cesium ions from aqueous solutions. Molecules 2014; 19:9160-72. [PMID: 24988186 PMCID: PMC6271618 DOI: 10.3390/molecules19079160] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 06/01/2014] [Accepted: 06/09/2014] [Indexed: 11/29/2022] Open
Abstract
Zirconia powder was synthesized via a sol gel method and placed in a batch reactor for cesium removal investigation. X-ray analysis and Fourier transform infrared spectroscopy were utilized for the evaluation of the developed adsorbent. The adsorption process has been investigated as a function of pH, contact time and temperature. The adsorption is strongly dependent on the pH of the medium whereby the removal efficiency increases as the pH turns to the alkaline range. The process was initially very fast and the maximum adsorption was attained within 60 min of contact. A pseudo-second-order model and homogeneous particle diffusion model (HPDM) were found to be the best to correlate the diffusion of cesium into the zirconia particles. Furthermore, adsorption thermodynamic parameters, namely the standard enthalpy, entropy, and Gibbs free energy, were calculated. The results indicate that cesium adsorption by zirconia is an endothermic (ΔH > 0) process and good affinity of cesium ions towards the sorbent (ΔS > 0) was observed.
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Affiliation(s)
- Sobhy M Yakout
- Biochemistry Department, College of Science, King Saud University, PO Box, 2455, Riyadh 11451, Kingdom of Saudi Arabia.
| | - Hisham S Hassan
- Hot Laboratories Center, Atomic Energy Authority, P. Box 13759, Cairo, Egypt
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244
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Rahman MM, Adil M, Yusof AM, Kamaruzzaman YB, Ansary RH. Removal of Heavy Metal Ions with Acid Activated Carbons Derived from Oil Palm and Coconut Shells. MATERIALS 2014; 7:3634-3650. [PMID: 28788640 PMCID: PMC5453229 DOI: 10.3390/ma7053634] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 03/13/2014] [Accepted: 03/14/2014] [Indexed: 11/16/2022]
Abstract
In this work, batch adsorption experiments were carried out to investigate the suitability of prepared acid activated carbons in removing heavy metal ions such as nickel(II), lead(II) and chromium(VI). Acid activated carbons were obtained from oil palm and coconut shells using phosphoric acid under similar activation process while the differences lie either in impregnation condition or in both pretreatment and impregnation conditions. Prepared activated carbons were modified by dispersing hydrated iron oxide. The adsorption equilibrium data for nickel(II) and lead(II) were obtained from adsorption by the prepared and commercial activated carbons. Langmuir and Freundlich models fit the data well. Prepared activated carbons showed higher adsorption capacity for nickel(II) and lead(II). The removal of chromium(VI) was studied by the prepared acid activated, modified and commercial activated carbons at different pH. The isotherms studies reveal that the prepared activated carbon performs better in low concentration region while the commercial ones in the high concentration region. Thus, a complete adsorption is expected in low concentration by the prepared activated carbon. The kinetics data for Ni(II), Pb(II) and Cr(VI) by the best selected activated carbon fitted very well to the pseudo-second-order kinetic model.
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Affiliation(s)
- Mokhlesur M Rahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia.
| | - Mohd Adil
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, UTM Johor Bahru 81310, Johor, Malaysia.
| | - Alias M Yusof
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, UTM Johor Bahru 81310, Johor, Malaysia.
| | - Yunus B Kamaruzzaman
- Department of Biotechnology, Faculty of Science, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia.
| | - Rezaul H Ansary
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, International Islamic University Malaysia, Kuantan 25200, Pahang, Malaysia.
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245
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Saha TK, Karmaker S, Alam MF. Kinetics, mechanism and thermodynamics involved in sorption of meso-tetrakis(4-sulfonatophenyl)porphyrin onto chitosan in aqueous medium. J PORPHYR PHTHALOCYA 2014. [DOI: 10.1142/s1088424613501174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Sorption of meso-tetrakis(4-sulfonatophenyl)porphyrin ( H 2 tpps ) onto chitosan has been investigated in aqueous medium. Kinetic and isotherm studies were carried out by considering the effects of various parameters, such as pH, initial concentration of H 2 tpps solution, and temperature. The kinetic data obtained from different batch experiments were analyzed using pseudo first-, second-order, intraparticle, and film diffusion kinetic models. The equilibrium sorption data was analyzed by using Tempkin, Langmuir and Freundlich models. The best results were achieved with the pseudo second-order kinetic, Langmuir and Freundlich isotherm models. The intraparticle diffusion and film diffusion are the rate limiting steps. The amount of sorbate adsorbed at equilibrium (qe) increased with increasing the initial concentration of H 2 tpps solution, showing maximum sorption capacity of 445.21 μmol.g-1. The activation energy (Ea) of sorption kinetics was found to be 19.47 kJ.mol-1. Thermodynamic parameters such as change in free energy (ΔG), enthalpy (ΔH) and entropy (ΔS) were evaluated by applying the Van't Hoff equation. Thermodynamic activation parameters such as change in enthalpy of activation (ΔH‡), entropy of activation (ΔS‡), and free energy of activation (ΔG‡) were also calculated. The thermodynamics of H 2 tpps sorption onto chitosan in aqueous medium indicates its spontaneous and endothermic nature.
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Affiliation(s)
- Tapan K. Saha
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Subarna Karmaker
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Md F. Alam
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
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246
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Dong X, Wang C, Li H, Wu M, Liao S, Zhang D, Pan B. The sorption of heavy metals on thermally treated sediments with high organic matter content. BIORESOURCE TECHNOLOGY 2014; 160:123-128. [PMID: 24486102 DOI: 10.1016/j.biortech.2014.01.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/31/2013] [Accepted: 01/04/2014] [Indexed: 06/03/2023]
Abstract
A sediment sample with organic matter higher than 60% was thermally treated and the sorption of Cu(II), Cd(II), and Pb(II) was investigated and compared to evaluate the potential use of sediments with high organic matter content to produce biochar. Cu(II) and Cd(II) sorption generally decreased with increasing pyrolysis temperature, concurred with decreased oxygen-containing functional groups of the adsorbents. Sediment particles pyrolyzed at 400 and 500 °C showed higher sorption to Pb(II) than other temperatures. The small hydrated ionic radius of Pb(II) may enable its close contact with solid particles and thus facilitated the diffusion of Pb(II) into the pores and the formation of cation-π bond with aromatic structures generated by pyrolysis. The sorption of heavy metals in thermally treated sediment showed comparable sorption to or higher sorption than natural adsorbents and biochars from biomass, suggesting their possible significant impact on the transport and risk of heavy metals.
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Affiliation(s)
- Xudong Dong
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China; Medical School, Kunming University of Science & Technology, Kunming 650500, China
| | - Chi Wang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Min Wu
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China.
| | - Shaohua Liao
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Di Zhang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
| | - Bo Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, China
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247
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Wang N, Zhang Y, Zhu F, Li J, Liu S, Na P. Adsorption of soluble oil from water to graphene. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:6495-6505. [PMID: 24522396 DOI: 10.1007/s11356-014-2504-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 12/22/2013] [Indexed: 06/03/2023]
Abstract
The toxicity of soluble oil to the aquatic environment has started to attract wide attention in recent years. In the present work, we prepare graphene according to oxidation and thermal reduction methods for the removal of soluble oil from the solution. Characterization of the as-prepared graphene are performed by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectra, Brunauer-Emmett-Teller, X-ray photoelectron spectroscopy, and contact angle analysis. The adsorption behavior of soluble oil on graphene is examined, and the obtained adsorption data are modeled using conventional theoretical models. Adsorption experiments reveal that the adsorption rate of soluble oil on graphene is notably fast, especially for the soluble diesel oil, which could reach equilibrium within 30 min, and the kinetics of adsorption is perfectly consistent with a pseudo-second-order model. Furthermore, it is determined that the adsorption isotherm of soluble diesel oil with graphene fit the Freundlich model best, and graphene has a very strong adsorption capacity for soluble diesel oil in the solution. These results demonstrate that graphene is the material that provided both good adsorptive capacity and good kinetics, implying that it could be used as a promising sorbent for soluble oil removal from wastewater.
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Affiliation(s)
- Na Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
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248
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de Oliveira Sousa Neto V, Melo DQ, de Oliveira TC, Nonato R, Teixeira P, Silva MAA, Nascimento RFD. Evaluation of new chemically modified coconut shell adsorbents with tannic acid for Cu (II) removal from wastewater. J Appl Polym Sci 2014. [DOI: 10.1002/app.40744] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vicente de Oliveira Sousa Neto
- Universidade Estadual do Ceará; Centro de Ciências e Tecnologia da Região do Inhamuns; CECITEC. BR 116, s/n, Bairro Bezerra e Souza Tauá-Ceará Brazil CEP 63600000
| | - Diego Quadros Melo
- Departamento de Química Analítica e Físico Química Campus do Pici; Universidade Federal do Ceará, Centro de Ciências; Bloco 940-CEP 60451-970 Fortaleza Ceará
| | - Talles Cardoso de Oliveira
- Departamento de Química Analítica e Físico Química Campus do Pici; Universidade Federal do Ceará, Centro de Ciências; Bloco 940-CEP 60451-970 Fortaleza Ceará
| | | | - P. Teixeira
- Departamento de Química Biológica-Rua Cel. Antônio Luis; Universidade Regional do Cariri; 1161-63.100-000-Pimenta Crato Ceará Brazil
- Departamento de Engenharia Hidráulica e Ambiental; Universidade Federal do Ceará, Campus do Pici-Centro de Tecnologia; Bloco 713-CEP 60451-970 Fortaleza Ceará Brazil
| | - Marcos Antônio Araújo Silva
- Departamento de Física; Universidade Federal do Ceará, Campus do Pici-Bloco 922; CEP 60.455-900 Fortaleza Ceará Brazil
| | - Ronaldo Ferreira do Nascimento
- Departamento de Química Analítica e Físico Química Campus do Pici; Universidade Federal do Ceará, Centro de Ciências; Bloco 940-CEP 60451-970 Fortaleza Ceará
- Departamento de Engenharia Hidráulica e Ambiental; Universidade Federal do Ceará, Campus do Pici-Centro de Tecnologia; Bloco 713-CEP 60451-970 Fortaleza Ceará Brazil
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249
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Sharma I, Sharma SK, Sambi SS. Cadmium and Chromium Adsorption on Activated Carbon. INDIAN CHEMICAL ENGINEER 2014. [DOI: 10.1080/00194506.2014.903624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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250
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Khan S, Kazi TG, Soylak M. Rapid ionic liquid-based ultrasound assisted dual magnetic microextraction to preconcentrate and separate cadmium-4-(2-thiazolylazo)-resorcinol complex from environmental and biological samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 123:194-199. [PMID: 24398463 DOI: 10.1016/j.saa.2013.12.065] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 11/28/2013] [Accepted: 12/08/2013] [Indexed: 06/03/2023]
Abstract
A rapid and innovative microextraction technique named as, ionic liquid-based ultrasound-assisted dual magnetic microextraction (IL-UA-DMME) was developed for the preconcentration and extraction of trace cadmium from environmental and biological samples, prior to analyzed by flame atomic absorption spectrometry (FAAS). The proposed method has many obvious advantages, including evading the use of organic solvents and achieved high extraction yields by the combination of dispersive liquid-liquid microextraction (DLLME) and magnetic mediated-solid phase extraction (MM-SPE). In this approach ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate [C4mim][PF6] play an important role to extract the cadmium-4-(2-thiazolylazo)-resorcinol (Cd-TAR) complex from acid digested sample solutions and ultrasonic irradiation was applied to assist emulsification. After then, dispersed small amount of Fe3O4 magnetic nanoparticles (MNPs) in sample solutions to salvaged the IL and complete phase separation was attained. Some analytical parameters that influencing the efficiency of proposed (IL-UA-DMME) method, such as pH, volume of IL, ligand concentration, ultra-sonication time, amount of Fe3O4 MNPs, sample volume and matrix effect were optimized. Limit of detection (LOD) and enrichment factor (EF) of the method under optimal experimental conditions were found to be 0.40μgL(-1) and 100, respectively. The relative standard deviation (RSD) of 50μgL(-1) Cd was 4.29%. The validity and accuracy of proposed method, was assessed to analyzed certified reference materials of fortified lake water TMDA-54.4, SPS-WW2 waste water, spinach leaves 1570a and also checked by standard addition method. The obtained values showed good agreement with the certified values and sufficiently high recovery were found in the range of 98.1-101% for Cd. The proposed method was facile, rapid and successfully applied for the determination of Cd in environmental and different biological samples.
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Affiliation(s)
- Sumaira Khan
- Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey; Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
| | - Tasneem Gul Kazi
- Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
| | - Mustafa Soylak
- Erciyes University, Fen Faculty, Department of Chemistry, 38039 Kayseri, Turkey.
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