Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach
Heavy metal pollution in water sources is a great environmental issue worldwide. In this line, Cd(II) is considered to be one of the top toxic heavy metals because it is a threat not only to plants, but also to humans. Accordingly, development of new strategies for removal of Cd(II) is of great impo...
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Water and Wastewater Consulting Engineers Research Development
2020-11-01
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doaj-7a74a5e2864545da9732ccc6a671feba2021-04-02T19:32:14ZengWater and Wastewater Consulting Engineers Research Developmentآب و فاضلاب1024-59362383-09052020-11-01315587210.22093/wwj.2020.210880.2960113650Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption ApproachFatemeh Zarei0Azam Marjani1Ali Hassani Joshaghani2PhD Student of Chemistry, Dept. of Chemistry, Arak Branch, Islamic Azad University, Arak, IranAssoc. Prof., Dept. of Chemistry, Arak Branch, Islamic Azad University, Arak, IranAssist. Prof., Dept. of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, IranHeavy metal pollution in water sources is a great environmental issue worldwide. In this line, Cd(II) is considered to be one of the top toxic heavy metals because it is a threat not only to plants, but also to humans. Accordingly, development of new strategies for removal of Cd(II) is of great importance for scientists. This study could be divided into three overall sections: 1) synthesis and characterization of fibrous mesoporous silica KCC-1, 2) surface modification and characterization of triamine-functionalized KCC-1 (TA-KCC-1), 3) investigation of the applicability of TA-KCC-1 as an adsorbent for the removal of Cd(II) from aqueous solution via adsorption method. Synthesized materials were analyzed and investigated by FTIR, FESEM, and N2 adsorption-desorption isotherms. In order to investigate adsorption features and determine the better adsorption capacity for TA-KCC-1, adsorption conditions such as pH, adsorbent dosage, initial concentration of pollutants, and contact time were monitored and optimized. Then, to investigate and predict the adsorption properties and adsorption mechanism of Cd(II) by synthesized TA-KCC-1, various nonlinear kinetic and isotherm models were used. Theoretical parameters obtained from experimental data revealed that the adoption of Cd(II) cations by TA-KCC-1 follows the Langmuir isotherm model with the maximum adsorption capacity of 378 mg g–1 under optimum conditions (pH=7.0; adsorbent dosage=5.0 mg; time=300 min; temperature=298 K). The results of this study showed that the novel adsorbent reported in this study possesses the high potential for adsorptive removal of Cd(II) from aqueous solution. Also, biodegradability, designability, and high adsorption capacity of this adsorbent may be promising for similar research in the field of adsorption pollutants in the future.http://www.wwjournal.ir/article_113650_72db483578544ac7fb4922b85ff15c3b.pdffibrous silica kcc-1surface modificationadsorption of toxic metalslangmuir isotherm |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fatemeh Zarei Azam Marjani Ali Hassani Joshaghani |
spellingShingle |
Fatemeh Zarei Azam Marjani Ali Hassani Joshaghani Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach آب و فاضلاب fibrous silica kcc-1 surface modification adsorption of toxic metals langmuir isotherm |
author_facet |
Fatemeh Zarei Azam Marjani Ali Hassani Joshaghani |
author_sort |
Fatemeh Zarei |
title |
Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach |
title_short |
Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach |
title_full |
Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach |
title_fullStr |
Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach |
title_full_unstemmed |
Synthesis and Characterization of Novel Adsorbent Based on Mesoporous Fibrous Silica (KCC-1) for Removal of Heavy Metal from Aqueous Solution via Adsorption Approach |
title_sort |
synthesis and characterization of novel adsorbent based on mesoporous fibrous silica (kcc-1) for removal of heavy metal from aqueous solution via adsorption approach |
publisher |
Water and Wastewater Consulting Engineers Research Development |
series |
آب و فاضلاب |
issn |
1024-5936 2383-0905 |
publishDate |
2020-11-01 |
description |
Heavy metal pollution in water sources is a great environmental issue worldwide. In this line, Cd(II) is considered to be one of the top toxic heavy metals because it is a threat not only to plants, but also to humans. Accordingly, development of new strategies for removal of Cd(II) is of great importance for scientists. This study could be divided into three overall sections: 1) synthesis and characterization of fibrous mesoporous silica KCC-1, 2) surface modification and characterization of triamine-functionalized KCC-1 (TA-KCC-1), 3) investigation of the applicability of TA-KCC-1 as an adsorbent for the removal of Cd(II) from aqueous solution via adsorption method. Synthesized materials were analyzed and investigated by FTIR, FESEM, and N2 adsorption-desorption isotherms. In order to investigate adsorption features and determine the better adsorption capacity for TA-KCC-1, adsorption conditions such as pH, adsorbent dosage, initial concentration of pollutants, and contact time were monitored and optimized. Then, to investigate and predict the adsorption properties and adsorption mechanism of Cd(II) by synthesized TA-KCC-1, various nonlinear kinetic and isotherm models were used. Theoretical parameters obtained from experimental data revealed that the adoption of Cd(II) cations by TA-KCC-1 follows the Langmuir isotherm model with the maximum adsorption capacity of 378 mg g–1 under optimum conditions (pH=7.0; adsorbent dosage=5.0 mg; time=300 min; temperature=298 K). The results of this study showed that the novel adsorbent reported in this study possesses the high potential for adsorptive removal of Cd(II) from aqueous solution. Also, biodegradability, designability, and high adsorption capacity of this adsorbent may be promising for similar research in the field of adsorption pollutants in the future. |
topic |
fibrous silica kcc-1 surface modification adsorption of toxic metals langmuir isotherm |
url |
http://www.wwjournal.ir/article_113650_72db483578544ac7fb4922b85ff15c3b.pdf |
work_keys_str_mv |
AT fatemehzarei synthesisandcharacterizationofnoveladsorbentbasedonmesoporousfibroussilicakcc1forremovalofheavymetalfromaqueoussolutionviaadsorptionapproach AT azammarjani synthesisandcharacterizationofnoveladsorbentbasedonmesoporousfibroussilicakcc1forremovalofheavymetalfromaqueoussolutionviaadsorptionapproach AT alihassanijoshaghani synthesisandcharacterizationofnoveladsorbentbasedonmesoporousfibroussilicakcc1forremovalofheavymetalfromaqueoussolutionviaadsorptionapproach |
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