Fabrication of cellulose-collagen based biosorbent as eco-friendly scavengers for uranyl ions
Copyright © 2024 Elsevier B.V. All rights reserved..
The aim of the present research is to fabricate a biosorbent using agricultural waste for removal of uranium from contaminated water i.e. "waste to wealth" approach. Cellulose extracted from wheat straw was mercerized and a novel semi-interpenetrating polymer network (semi-IPN) was fabricated through graft copolymerization of polyvinyl alcohol onto hybrid mercerized cellulose + collagen backbone. Response surface methodology was used for optimization of different reaction parameters as a function of % grafting (195.1 %) was carried out. Semi-IPN was found to possess higher thermal stability. Adsorption results revealed that the optimum parameters for the elimination of uranium using semi-IPN were: adsorbent dose = 0.15 g, pH = 6.0, contact time = 120 min and initial U (VI) concentration = 100 μg/L. The pseudo-second-order kinetic model gave the best description of the adsorption equilibrium data as the calculated qe value is nearest to the experimental qe for the different initial U(VI) concentrations. Adsorption experiments followed Langmuir isotherm with R2 = 0.999. Furthermore, recyclability and reusability studies showed that the adsorption efficiency of semi-IPN was 82 % after 5 cycles indicating the superior recycling execution of fabricated biosorbent. Thus, the fabricated ecofriendly device can be used effectively for the removal of uranium from contaminated wastewater sources.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:266 |
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| Enthalten in: |
International journal of biological macromolecules - 266(2024), Pt 2 vom: 04. Apr., Seite 131400 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Sharma, Himani [VerfasserIn] |
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| Links: |
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| Themen: |
Adsorption |
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| Anmerkungen: |
Date Revised 09.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1016/j.ijbiomac.2024.131400 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370718860 |
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| 500 | |a published: Print-Electronic | ||
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| 520 | |a Copyright © 2024 Elsevier B.V. All rights reserved. | ||
| 520 | |a The aim of the present research is to fabricate a biosorbent using agricultural waste for removal of uranium from contaminated water i.e. "waste to wealth" approach. Cellulose extracted from wheat straw was mercerized and a novel semi-interpenetrating polymer network (semi-IPN) was fabricated through graft copolymerization of polyvinyl alcohol onto hybrid mercerized cellulose + collagen backbone. Response surface methodology was used for optimization of different reaction parameters as a function of % grafting (195.1 %) was carried out. Semi-IPN was found to possess higher thermal stability. Adsorption results revealed that the optimum parameters for the elimination of uranium using semi-IPN were: adsorbent dose = 0.15 g, pH = 6.0, contact time = 120 min and initial U (VI) concentration = 100 μg/L. The pseudo-second-order kinetic model gave the best description of the adsorption equilibrium data as the calculated qe value is nearest to the experimental qe for the different initial U(VI) concentrations. Adsorption experiments followed Langmuir isotherm with R2 = 0.999. Furthermore, recyclability and reusability studies showed that the adsorption efficiency of semi-IPN was 82 % after 5 cycles indicating the superior recycling execution of fabricated biosorbent. Thus, the fabricated ecofriendly device can be used effectively for the removal of uranium from contaminated wastewater sources | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Adsorption | |
| 650 | 4 | |a Grafting | |
| 650 | 4 | |a Mercerized cellulose | |
| 650 | 4 | |a Response surface methodology (RSM) | |
| 650 | 4 | |a Semi-IPN | |
| 650 | 4 | |a Uranium | |
| 700 | 1 | |a Kaith, Balbir Singh |e verfasserin |4 aut | |
| 700 | 1 | |a Kumar, Rakesh |e verfasserin |4 aut | |
| 700 | 1 | |a Mehra, Rohit |e verfasserin |4 aut | |
| 700 | 1 | |a Bhatti, Manpreet Singh |e verfasserin |4 aut | |
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