Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars
In this paper, Canna indica was pyrolyzed to produce the original biochar (BC) and modified by HNO3 and KOH (HBC and KBC). The adsorption kinetics and isotherm for ofloxacin (OFLX) removal by three biochars were studied, and the effects of pH value and dosage on the adsorption effect were also inves...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_01004.pdf |
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| author | Yuan Jiajia Liu Tianhao Xie Wei Yuan Huizhou Dong Wenyi Wang Hongjie Yang Yang |
| author_facet | Yuan Jiajia Liu Tianhao Xie Wei Yuan Huizhou Dong Wenyi Wang Hongjie Yang Yang |
| author_sort | Yuan Jiajia |
| collection | DOAJ |
| description | In this paper, Canna indica was pyrolyzed to produce the original biochar (BC) and modified by HNO3 and KOH (HBC and KBC). The adsorption kinetics and isotherm for ofloxacin (OFLX) removal by three biochars were studied, and the effects of pH value and dosage on the adsorption effect were also investigated. The results showed that the quasi-second-order kinetic model could describe the OFLX adsorption processes by BC, HBC and KBC, which was mainly chemical adsorption. The adsorption isotherms of three biochars were consistent with the Freundlich model. The adsorption by BC was greatly affected by pH change, and its adsorption capacity decreased with the increasing of pH, while the HBC and KBC were not sensitivity. With the increase of biochars dosage, the adsorption capacity of OFLX for the three kinds of biochar presented a trend of increasing first and then gradually stabilizing. |
| format | Article |
| id | doaj-art-e8c9a0ea6f9c4b84b0c45fa9bb4383b2 |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-e8c9a0ea6f9c4b84b0c45fa9bb4383b22025-08-20T03:54:07ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016280100410.1051/e3sconf/202562801004e3sconf_eppct2025_01004Study on the Adsorption of Ofloxacin in Water by Canna indica BiocharsYuan Jiajia0Liu Tianhao1Xie Wei2Yuan Huizhou3Dong Wenyi4Wang Hongjie5Yang Yang6School of Materials and Environmental Engineering, Shenzhen Polytechnic UniversitySchool of Civil and Environmental Engineering, Harbin Institute of Technology ShenzhenCollege of Civil Engineering, Hunan UniversitySchool of Materials and Environmental Engineering, Shenzhen Polytechnic UniversitySchool of Civil and Environmental Engineering, Harbin Institute of Technology ShenzhenSchool of Civil and Environmental Engineering, Harbin Institute of Technology ShenzhenSchool of Civil and Environmental Engineering, Harbin Institute of Technology ShenzhenIn this paper, Canna indica was pyrolyzed to produce the original biochar (BC) and modified by HNO3 and KOH (HBC and KBC). The adsorption kinetics and isotherm for ofloxacin (OFLX) removal by three biochars were studied, and the effects of pH value and dosage on the adsorption effect were also investigated. The results showed that the quasi-second-order kinetic model could describe the OFLX adsorption processes by BC, HBC and KBC, which was mainly chemical adsorption. The adsorption isotherms of three biochars were consistent with the Freundlich model. The adsorption by BC was greatly affected by pH change, and its adsorption capacity decreased with the increasing of pH, while the HBC and KBC were not sensitivity. With the increase of biochars dosage, the adsorption capacity of OFLX for the three kinds of biochar presented a trend of increasing first and then gradually stabilizing.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_01004.pdf |
| spellingShingle | Yuan Jiajia Liu Tianhao Xie Wei Yuan Huizhou Dong Wenyi Wang Hongjie Yang Yang Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars E3S Web of Conferences |
| title | Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars |
| title_full | Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars |
| title_fullStr | Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars |
| title_full_unstemmed | Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars |
| title_short | Study on the Adsorption of Ofloxacin in Water by Canna indica Biochars |
| title_sort | study on the adsorption of ofloxacin in water by canna indica biochars |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/28/e3sconf_eppct2025_01004.pdf |
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