Removal of Cu(II)-ion over amine-functionalized mesoporous silica materials

Lee, Hyung Won; Cho, Hye‐Kyung; Yim, Jin‐Heong; Kim, Ji Man; Jeon, Jong‐Ki; Sohn, Jung Min; Yoo, Kyung-Seun; Kim, Seung-Soo; Park, Young-Kwon

doi:10.1016/j.jiec.2010.09.022

Cited by 41 publications

(28 citation statements)

References 21 publications

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“…This occurs in many industries including mining process, smelting, metal plating, pigment, battery manufacturing processes, metallurgical industries [1] [2] [3], tannery and fabrication [4].…”

Section: Introductionmentioning

confidence: 99%

“…Since copper is an essential metal in a number of enzymes for all forms of life, problems take place when it is deficient or in excess [26]. Copper is considered one of the most widely used heavy metal and the cupric ion, Cu(II), is the most prevalent species found in the environment and copper in this form is toxic to many living organisms [3] [42] [43].…”

Section: Introductionmentioning

confidence: 99%

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Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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In this study, the adsorption behavior of copper(II) ions from aqueous solutions onto sesame husk (SH) was investigated. The effect of different parameters such as pH, contact time, adsorbent dosage, adsorbate concentration, temperature and agitation speed was studied. Thermodynamic parameters, equilibrium isotherms and kinetic data have been evaluated. The functional groups and surface morphology of SH adsorbent were characterized by FTIR and SEM. Adsorption equilibrium isotherms were expressed by Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption models and it was found that Langmuir adsorption model fits the experimental data better than Freundlich and D-R models. The adsorption can be best described by the pseudo second-order kinetic model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

El-Araby¹,

Ibrahim²,

Mangood³

et al. 2017

GEP

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show abstract

“…Water-soluble polymers are used in many fields including food, textiles, construction and pharmaceutical industries, coating technologies, dye industry, adhesives, and water cleaning [1][2][3]. Developments of nanotechnology, environmental engineering, biomedical engineering, information technologies and smart devices with biocompatible and environment-friendly properties resulted from extensive studies of these compounds [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Heat resisting and water-soluble chocolate polyesters containing azomethine group

Temizkan

Kaya

2017

Materials Science-Poland

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In this study, soluble in water poly(azomethine-ester)s (PAEs) were synthesized via elimination reactions of aromatic dihydroxy compounds containing imine bonding with terephthaloyl chloride. The structures of Schiff bases (SBs) and PAEs containing different aliphatic chains were confirmed by FT-IR, 1 H-NMR, 13 C-NMR and UV-Vis analyses. Physicochemical properties of the new polymers were characterized. Thermal properties of the compounds were investigated by TGA-DTA, DMA and DSC. According to TGA measurements, the starting degradation temperatures (T on ) of P-1, P-2, P-3, and P-4 poly(azomethine-ester)s were found as 255°C, 232°C, 222°C, and 221°C, respectively. The starting degradation temperatures of the poly(azomethine-ester)s were higher than their Schiff base compounds. According to dynamical mechanical analysis (DMA) measurements, glass transition temperature (T g ) of P-1, P-2, P-3, and P-4 poly(azomethine-ester)s were found as 95°C, 138°C, 140°C, and 145°C, respectively. The morphological and topographic properties of the PAEs containing azomethine linkage in the main chain were investigated by FE-SEM and AFM, respectively. The molecular mass distributions of PAEs were determined by gel permeation chromatography (GPC). Electrochemical (E g ) and optical band gap (E opt g ) values of the prepared SBs and PAEs were calculated from cyclic voltammetry (CV) and UV-Vis analyses. The electrochemical band gap (E g ) values of P-1, P-2, P-3 and P-4 were found as 2.44 eV, 2.41 eV, 2.39 eV and 2.39 eV, respectively, from the cyclic voltammetry.

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“…Geralmente, esses íons não são biodegradáveis e podem facilmente acumular dentro do corpo humano induzindo a várias doenças (Ulusoy e Akkaya, 2009;Fu e Wang, 2011 (13,9 mgg -1 ). Lee et al, (2011) estudaram a capacidade para a adsorção de íon Cu(II) de adsorventes. A peneira molecular MCM-41 funcionalizada com aminopropil apresentou a melhor atividade para a adsorção de íon Cu(II), 5,9 mg g -1 .…”

Section: Introductionunclassified

“…Varios estudos tem sido realizados com o intuito de desenvolver adsorventes altamente eficientes, os materiais mesoporosos ordenados tem apresentado resultados satisfatórios no estudo de remoção de íons de metais pesados (Wu e Zhao, 2011;Rostamian et al, 2011;Lee et al, 2011). As peneiras moleculares são suportes atrativos devido à elevada área superficial e dessa forma são susceptiveis a reações de funcionalização.…”

Section: Introductionunclassified

Aplicação Da Peneira Molecular Sba-15 Como Adsorvente Para Espécies Poluentes De Cátions Metálicos Em Solução Aquosa.

Rodrigues¹,

Marinho²,

Almeida³

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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RESUMO -Neste trabalho sintetizou-se a peneira molecular SBA-15, com o intuito de utilizá-la como adsorvente para espécies poluentes de cátions metálicos em solução aquosa. A SBA-15 foi sintetizada com a seguinte composição molar: 1.0 (fonte de sílica): 0.017 P123: 5.7 HCl: 193 H 2 O. A solução de PAR foi preparada a uma concentração de 150 ppm. Foram utilizados concentrações de 10, 30 e 50 ppm de chumbo para as adsorções e calibração. Foi preparada uma solução tampão bórax pH 9,00. Os espectros foram registrados utilizando o instrumento UV-Vis/NIR da Perkin Elmer, modelo Lambda 750. Os materiais obtidos foram caracterizados através das técnicas de difração de raios-X (DRX), análise química por (EDX) e Adsorção de Nitrogênio (Método de BET). Através das caracterizações verificou-se a formação da peneira molecular SBA-15. Foi realizada a adsorção variando-se a concentração das soluções iniciais dos cátions metálicos, onde foram observados excelentes valores de remoção de Chumbo, em torno de 60%.

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Removal of Cu(II)-ion over amine-functionalized mesoporous silica materials

Cited by 41 publications

References 21 publications

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

Sesame Husk as Adsorbent for Copper(II) Ions Removal from Aqueous Solution

Heat resisting and water-soluble chocolate polyesters containing azomethine group

Aplicação Da Peneira Molecular Sba-15 Como Adsorvente Para Espécies Poluentes De Cátions Metálicos Em Solução Aquosa.

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