Adsorption using chitosan and nano zerovalent iron composite material for sustainable water treatment
The growing global population and rapid urbanization have led to a water crisis. Current environmental issues emphasize the exploration of advanced materials and economical methods for purification of wastewater. The present work focuses on using advanced composite material made up of chitosan, acti...
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| Published in | Materials research express Vol. 8; no. 2; pp. 24001 - 24017 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
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Bristol
IOP Publishing
01.02.2021
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| Abstract | The growing global population and rapid urbanization have led to a water crisis. Current environmental issues emphasize the exploration of advanced materials and economical methods for purification of wastewater. The present work focuses on using advanced composite material made up of chitosan, activated carbon, zerovalent iron nanoparticles for adsorption of Congo red dye. The adsorbent was characterized using SEM, XRD and FTIR. An investigation was conducted on the critical parameters such as pH, the effect of initial dye concentration, temperature and the adsorbent dosage. The optimum dye to adsorbent ratio was analyzed. The composite material proposed as adsorbent was found to be very effective in adsorption of the Congo red dye. 100% adsorption was noted in 70 min under room temperature for the dye concentration of 100 ppm using 1 g of the adsorbent at pH 7. The efficacy of adsorption increased with the increase in temperature and found to increase under acidic pH. The optimum dye to adsorbent dosage is found to be 1:10. 100% of degradation is achieved within 50 min at a temperature of 80 °C and pH 1. The optimization studies were incorporated to investigate the effects of the variables on the process of adsorption using Box-Behnken design of experiments. The inquest of the present study provides an economical and efficient method for water treatment which can be easily adapted for the wastewater purification. |
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| AbstractList | The growing global population and rapid urbanization have led to a water crisis. Current environmental issues emphasize the exploration of advanced materials and economical methods for purification of wastewater. The present work focuses on using advanced composite material made up of chitosan, activated carbon, zerovalent iron nanoparticles for adsorption of Congo red dye. The adsorbent was characterized using SEM, XRD and FTIR. An investigation was conducted on the critical parameters such as pH, the effect of initial dye concentration, temperature and the adsorbent dosage. The optimum dye to adsorbent ratio was analyzed. The composite material proposed as adsorbent was found to be very effective in adsorption of the Congo red dye. 100% adsorption was noted in 70 min under room temperature for the dye concentration of 100 ppm using 1 g of the adsorbent at pH 7. The efficacy of adsorption increased with the increase in temperature and found to increase under acidic pH. The optimum dye to adsorbent dosage is found to be 1:10. 100% of degradation is achieved within 50 min at a temperature of 80 °C and pH 1. The optimization studies were incorporated to investigate the effects of the variables on the process of adsorption using Box-Behnken design of experiments. The inquest of the present study provides an economical and efficient method for water treatment which can be easily adapted for the wastewater purification. |
| Author | Yerragolla, Shrikanth Sankannavar, Ravi Sowmya, S R Madhu, G M |
| Author_xml | – sequence: 1 givenname: S R orcidid: 0000-0003-2973-3358 surname: Sowmya fullname: Sowmya, S R organization: Department of Chemical Engineering, MS Ramaiah Institute of Technology, Bangalore 560054, India – sequence: 2 givenname: G M orcidid: 0000-0003-3937-7924 surname: Madhu fullname: Madhu, G M organization: Department of Chemical Engineering, MS Ramaiah Institute of Technology, Bangalore 560054, India – sequence: 3 givenname: Ravi orcidid: 0000-0002-1590-5609 surname: Sankannavar fullname: Sankannavar, Ravi organization: Department of Chemical Engineering, MS Ramaiah Institute of Technology, Bangalore 560054, India – sequence: 4 givenname: Shrikanth surname: Yerragolla fullname: Yerragolla, Shrikanth organization: Department of Chemical Engineering, MS Ramaiah Institute of Technology, Bangalore 560054, India |
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| SubjectTerms | Activated carbon Adsorbents Adsorption Chitosan Composite materials Congo red dye Design of experiments Dosage Dyes Iron kinetics Nanoparticles Optimization Room temperature Urbanization Wastewater Water purification Water treatment zerovalent iron nanoparticles |
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| Title | Adsorption using chitosan and nano zerovalent iron composite material for sustainable water treatment |
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