Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach
In this research work, a simple, efficient, and eco-friendly procedure for the biosorption of Cr(VI) ions was studied. A detailed comparative study was performed to check the adsorption efficiency of agrowaste (banana and potato peels)-based adsorbents. Firstly, mixed biosorbent was washed, dried an...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
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Multidisciplinary Digital Publishing Institute
2022
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| Online Access: | http://psasir.upm.edu.my/id/eprint/101452/ |
| _version_ | 1848863563707318272 |
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| author | Ashfaq, Aamna Nadeem, Raziya Gong, Hongyu Rashid, Umer Saima Noreen Rehman, Shafique ur Ahmed, Zubair Adil, Muhammad Akhtar, Nayab Ashfaq, Muhammad Zeeshan Alharthi, Fahad A. Kazerooni, Elham Ahmed |
| author_facet | Ashfaq, Aamna Nadeem, Raziya Gong, Hongyu Rashid, Umer Saima Noreen Rehman, Shafique ur Ahmed, Zubair Adil, Muhammad Akhtar, Nayab Ashfaq, Muhammad Zeeshan Alharthi, Fahad A. Kazerooni, Elham Ahmed |
| author_sort | Ashfaq, Aamna |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this research work, a simple, efficient, and eco-friendly procedure for the biosorption of Cr(VI) ions was studied. A detailed comparative study was performed to check the adsorption efficiency of agrowaste (banana and potato peels)-based adsorbents. Firstly, mixed biosorbent was washed, dried and ground into powder, secondly, biosorbent was pyrolyzed into biochar and thirdly TiO2 nanocomposite (TiO2 NC) biosorbent was made by sonicating using prepared biochar and TiO2 NPs. Titanium dioxide nanoparticles (TiO2 NPs) were synthesized by a green method using Psidium guajava leaf extract. The synthesized adsorbents were characterized by SEM, EDX FT-IR, XRD and UV-visible analysis. The effect of four different factors, i.e., pH of the synthetic metallic solution, time, concentration and adsorbent dosage was studied. The optimum conditions were time (120 min), pH (3), concentration (10 ppm) and adsorbent dosage (1.0 g). The kinetic modeling showed that the adsorption of Cr(VI) ion follows a pseudo second-order mechanism and the Langmuir isotherm model was found to fit better for this study. Response surface methodology (RSM)-based optimized parameters provided optimal parameter sets that better represent the adsorption rate models. The uptake capacity of Cr(VI) from aqueous solution was found to be biomass (76.49 mg/L) ˂ biochar (86.51 mg/L) ˂ TiO2 NC (92.89 mg/L). It can be suggested that the produced TiO2 NC could possibly be an efficient biosorbent for the removal of Cr(IV). |
| first_indexed | 2025-11-15T13:34:55Z |
| format | Article |
| id | upm-101452 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:34:55Z |
| publishDate | 2022 |
| publisher | Multidisciplinary Digital Publishing Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1014522023-09-22T23:30:03Z http://psasir.upm.edu.my/id/eprint/101452/ Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach Ashfaq, Aamna Nadeem, Raziya Gong, Hongyu Rashid, Umer Saima Noreen Rehman, Shafique ur Ahmed, Zubair Adil, Muhammad Akhtar, Nayab Ashfaq, Muhammad Zeeshan Alharthi, Fahad A. Kazerooni, Elham Ahmed In this research work, a simple, efficient, and eco-friendly procedure for the biosorption of Cr(VI) ions was studied. A detailed comparative study was performed to check the adsorption efficiency of agrowaste (banana and potato peels)-based adsorbents. Firstly, mixed biosorbent was washed, dried and ground into powder, secondly, biosorbent was pyrolyzed into biochar and thirdly TiO2 nanocomposite (TiO2 NC) biosorbent was made by sonicating using prepared biochar and TiO2 NPs. Titanium dioxide nanoparticles (TiO2 NPs) were synthesized by a green method using Psidium guajava leaf extract. The synthesized adsorbents were characterized by SEM, EDX FT-IR, XRD and UV-visible analysis. The effect of four different factors, i.e., pH of the synthetic metallic solution, time, concentration and adsorbent dosage was studied. The optimum conditions were time (120 min), pH (3), concentration (10 ppm) and adsorbent dosage (1.0 g). The kinetic modeling showed that the adsorption of Cr(VI) ion follows a pseudo second-order mechanism and the Langmuir isotherm model was found to fit better for this study. Response surface methodology (RSM)-based optimized parameters provided optimal parameter sets that better represent the adsorption rate models. The uptake capacity of Cr(VI) from aqueous solution was found to be biomass (76.49 mg/L) ˂ biochar (86.51 mg/L) ˂ TiO2 NC (92.89 mg/L). It can be suggested that the produced TiO2 NC could possibly be an efficient biosorbent for the removal of Cr(IV). Multidisciplinary Digital Publishing Institute 2022-06-29 Article PeerReviewed Ashfaq, Aamna and Nadeem, Raziya and Gong, Hongyu and Rashid, Umer and Saima Noreen and Rehman, Shafique ur and Ahmed, Zubair and Adil, Muhammad and Akhtar, Nayab and Ashfaq, Muhammad Zeeshan and Alharthi, Fahad A. and Kazerooni, Elham Ahmed (2022) Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach. Polymers, 14 (13). art. no. 2644. pp. 1-20. ISSN 2073-4360 https://www.mdpi.com/2073-4360/14/13/2644 10.3390/polym14132644 |
| spellingShingle | Ashfaq, Aamna Nadeem, Raziya Gong, Hongyu Rashid, Umer Saima Noreen Rehman, Shafique ur Ahmed, Zubair Adil, Muhammad Akhtar, Nayab Ashfaq, Muhammad Zeeshan Alharthi, Fahad A. Kazerooni, Elham Ahmed Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title | Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title_full | Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title_fullStr | Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title_full_unstemmed | Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title_short | Fabrication of novel agrowaste (banana and potato peels)-based biochar/TiO2 nanocomposite for adsorption of Cr(VI), statistical optimization via RSM approach |
| title_sort | fabrication of novel agrowaste (banana and potato peels)-based biochar/tio2 nanocomposite for adsorption of cr(vi), statistical optimization via rsm approach |
| url | http://psasir.upm.edu.my/id/eprint/101452/ http://psasir.upm.edu.my/id/eprint/101452/ http://psasir.upm.edu.my/id/eprint/101452/ |