Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions
This work studied the isotherm, kinetic and mechanism of Paraquat adsorption in aqueous solution by using corn cob biochar produced from different pyrolysis temperatures and times. The kinetic and isotherm data was fitted by the Pseudo-second-order and Langmuir models. These results showed that the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016422000706 |
| _version_ | 1811207560085110784 |
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| author | Chi Toan Nguyen Dondej Tungtakanpoung Van Tung Tra Puangrat Kajitvichyanukul |
| author_facet | Chi Toan Nguyen Dondej Tungtakanpoung Van Tung Tra Puangrat Kajitvichyanukul |
| author_sort | Chi Toan Nguyen |
| collection | DOAJ |
| description | This work studied the isotherm, kinetic and mechanism of Paraquat adsorption in aqueous solution by using corn cob biochar produced from different pyrolysis temperatures and times. The kinetic and isotherm data was fitted by the Pseudo-second-order and Langmuir models. These results showed that the adsorption capacity decreased with increasing pyrolysis temperatures during 6 hours in the order 200, 300, 400, 500, 600 °C and decreasing pyrolysis time in the order 2, 3, 4, 5, 6 hours, respectively at 200 °C. The mechanisms possibly contributed to hydrogen bonding and pore filling while π-π interaction was minor contributor in the adsorption process. Therefore, the corn cob biochar can become an alternative and promising adsorbent for Paraquat removal from an aqueous solution. |
| first_indexed | 2024-04-12T04:05:08Z |
| format | Article |
| id | doaj.art-7c8ef92c20714e17adc0de8123e1a0f5 |
| institution | Directory Open Access Journal |
| issn | 2666-0164 |
| language | English |
| last_indexed | 2024-04-12T04:05:08Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj.art-7c8ef92c20714e17adc0de8123e1a0f52022-12-22T03:48:37ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642022-12-016100248Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditionsChi Toan Nguyen0Dondej Tungtakanpoung1Van Tung Tra2Puangrat Kajitvichyanukul3Center of Excellence on Environmental Research and Innovation, Faculty of Engineering, Naresuan University, Phitsanulok, 65000, Thailand; Corresponding author.Center of Excellence on Environmental Research and Innovation, Faculty of Engineering, Naresuan University, Phitsanulok, 65000, ThailandNguyen Tat Thanh University, Ho Chi Minh City, Viet NamDepartment of Environmental Engineering, Faculty of Engineering, Chiang Mai University, Chiangmai, 50200, Thailand; Corresponding author.This work studied the isotherm, kinetic and mechanism of Paraquat adsorption in aqueous solution by using corn cob biochar produced from different pyrolysis temperatures and times. The kinetic and isotherm data was fitted by the Pseudo-second-order and Langmuir models. These results showed that the adsorption capacity decreased with increasing pyrolysis temperatures during 6 hours in the order 200, 300, 400, 500, 600 °C and decreasing pyrolysis time in the order 2, 3, 4, 5, 6 hours, respectively at 200 °C. The mechanisms possibly contributed to hydrogen bonding and pore filling while π-π interaction was minor contributor in the adsorption process. Therefore, the corn cob biochar can become an alternative and promising adsorbent for Paraquat removal from an aqueous solution.http://www.sciencedirect.com/science/article/pii/S2666016422000706Adsorption capacityBio-charCorn cobParaquatPyrolysisHydrogen bonding |
| spellingShingle | Chi Toan Nguyen Dondej Tungtakanpoung Van Tung Tra Puangrat Kajitvichyanukul Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions Case Studies in Chemical and Environmental Engineering Adsorption capacity Bio-char Corn cob Paraquat Pyrolysis Hydrogen bonding |
| title | Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| title_full | Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| title_fullStr | Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| title_full_unstemmed | Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| title_short | Kinetic, isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| title_sort | kinetic isotherm and mechanism in paraquat removal by adsorption process using corn cob biochar produced from different pyrolysis conditions |
| topic | Adsorption capacity Bio-char Corn cob Paraquat Pyrolysis Hydrogen bonding |
| url | http://www.sciencedirect.com/science/article/pii/S2666016422000706 |
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