Removing Efficiency and Mechanism of Ciprofloxacin from Aqueous Solution Using Rectorite
This work found that rectorite (REC) has a good adsorption effect on cationic pollutants such as ciprofloxacin (CIP), with a maximum adsorption capacity of 79.73 mg/g for CIP. The zeta potential analysis showed that the electronegativity of the REC surface would be weakened after CIP adsorption unde...
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| Veröffentlicht in: | Water, air, and soil pollution air, and soil pollution, 2024-05, Vol.235 (5), p.271, Article 271 |
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| creator | Su, Dan Huang, Jingyi Li, Yang Chen, Lin Wang, Yingru |
| description | This work found that rectorite (REC) has a good adsorption effect on cationic pollutants such as ciprofloxacin (CIP), with a maximum adsorption capacity of 79.73 mg/g for CIP. The zeta potential analysis showed that the electronegativity of the REC surface would be weakened after CIP adsorption under acidic conditions. Through adsorption kinetics, isotherm study, XRD, FTIR, and other characterizations, the phenomenon of reduced negative charge on the surface of REC adsorbed with CIP under acidic conditions was explained. Based on the Langmuir and Temkin models, the adsorption process of CIP on REC is a spontaneous endothermic adsorption process. The adsorption kinetics can be better described using a pseudo-second-order model, indicating that the adsorption rate is mainly controlled by chemical adsorption. The characterization further proved that REC adsorbed ciprofloxacin mainly through hydrogen bonding, cation exchange, and electrostatic gravitational interaction. CIP, as an emerging contaminant discharged into the water environment, will be harmful to the ecological environment and human health. Therefore, the utilization of REC for the removal of CIP from an aqueous solution has potential prospects. |
| doi_str_mv | 10.1007/s11270-024-07070-z |
| format | Article |
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The zeta potential analysis showed that the electronegativity of the REC surface would be weakened after CIP adsorption under acidic conditions. Through adsorption kinetics, isotherm study, XRD, FTIR, and other characterizations, the phenomenon of reduced negative charge on the surface of REC adsorbed with CIP under acidic conditions was explained. Based on the Langmuir and Temkin models, the adsorption process of CIP on REC is a spontaneous endothermic adsorption process. The adsorption kinetics can be better described using a pseudo-second-order model, indicating that the adsorption rate is mainly controlled by chemical adsorption. The characterization further proved that REC adsorbed ciprofloxacin mainly through hydrogen bonding, cation exchange, and electrostatic gravitational interaction. CIP, as an emerging contaminant discharged into the water environment, will be harmful to the ecological environment and human health. Therefore, the utilization of REC for the removal of CIP from an aqueous solution has potential prospects.</description><identifier>ISSN: 0049-6979</identifier><identifier>EISSN: 1573-2932</identifier><identifier>DOI: 10.1007/s11270-024-07070-z</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Adsorption ; Aqueous solutions ; Atmospheric Protection/Air Quality Control/Air Pollution ; Cation exchange ; Cation exchanging ; Cations ; Ciprofloxacin ; Climate Change/Climate Change Impacts ; Contaminants ; Earth and Environmental Science ; Electronegativity ; Electrostatic properties ; Endothermic reactions ; Environment ; Gravity ; Hydrogen bonding ; Hydrogeology ; Kinetics ; Soil Science & Conservation ; Surface chemistry ; Water Quality/Water Pollution ; Zeta potential</subject><ispartof>Water, air, and soil pollution, 2024-05, Vol.235 (5), p.271, Article 271</ispartof><rights>The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. 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The zeta potential analysis showed that the electronegativity of the REC surface would be weakened after CIP adsorption under acidic conditions. Through adsorption kinetics, isotherm study, XRD, FTIR, and other characterizations, the phenomenon of reduced negative charge on the surface of REC adsorbed with CIP under acidic conditions was explained. Based on the Langmuir and Temkin models, the adsorption process of CIP on REC is a spontaneous endothermic adsorption process. The adsorption kinetics can be better described using a pseudo-second-order model, indicating that the adsorption rate is mainly controlled by chemical adsorption. The characterization further proved that REC adsorbed ciprofloxacin mainly through hydrogen bonding, cation exchange, and electrostatic gravitational interaction. CIP, as an emerging contaminant discharged into the water environment, will be harmful to the ecological environment and human health. 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The zeta potential analysis showed that the electronegativity of the REC surface would be weakened after CIP adsorption under acidic conditions. Through adsorption kinetics, isotherm study, XRD, FTIR, and other characterizations, the phenomenon of reduced negative charge on the surface of REC adsorbed with CIP under acidic conditions was explained. Based on the Langmuir and Temkin models, the adsorption process of CIP on REC is a spontaneous endothermic adsorption process. The adsorption kinetics can be better described using a pseudo-second-order model, indicating that the adsorption rate is mainly controlled by chemical adsorption. The characterization further proved that REC adsorbed ciprofloxacin mainly through hydrogen bonding, cation exchange, and electrostatic gravitational interaction. CIP, as an emerging contaminant discharged into the water environment, will be harmful to the ecological environment and human health. 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| subjects | Adsorption Aqueous solutions Atmospheric Protection/Air Quality Control/Air Pollution Cation exchange Cation exchanging Cations Ciprofloxacin Climate Change/Climate Change Impacts Contaminants Earth and Environmental Science Electronegativity Electrostatic properties Endothermic reactions Environment Gravity Hydrogen bonding Hydrogeology Kinetics Soil Science & Conservation Surface chemistry Water Quality/Water Pollution Zeta potential |
| title | Removing Efficiency and Mechanism of Ciprofloxacin from Aqueous Solution Using Rectorite |
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