Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis
The long-term presence of PPCPs in the aqueous environment poses a potentially significant threat to human life and physical health and the safety of the water environment. In our previous work, we investigated low-cost pitch-based HCP adsorbents with an excellent adsorption capacity and magnetic re...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-01-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/2/463 |
| _version_ | 1797339526271598592 |
|---|---|
| author | Qilin Yang Hongwei Zhao Qi Peng Guang Chen Jiali Liu Xinxiu Cao Shaohui Xiong Gen Li Qingquan Liu |
| author_facet | Qilin Yang Hongwei Zhao Qi Peng Guang Chen Jiali Liu Xinxiu Cao Shaohui Xiong Gen Li Qingquan Liu |
| author_sort | Qilin Yang |
| collection | DOAJ |
| description | The long-term presence of PPCPs in the aqueous environment poses a potentially significant threat to human life and physical health and the safety of the water environment. In our previous work, we investigated low-cost pitch-based HCP adsorbents with an excellent adsorption capacity and magnetic responsiveness through a simple one-step Friedel–Crafts reaction. In this work, we further investigated the adsorption behavior of the prepared pitch-based adsorbents onto three PPCP molecules (DFS, AMP, and antipyrine) in detail. The maximum adsorption capacity of P-MPHCP for DFS was 444.93 mg g<sup>−1</sup>. The adsorption equilibrium and kinetic processes were well described through the Langmuir model and the proposed secondary kinetic model. The negative changes in Gibbs free energy and enthalpy reflected that the adsorption of HCPs onto PPCPs was a spontaneous exothermic process. The recoverability results showed that the adsorption of MPHCP and P-MPHCP onto DFS remained above 95% after 10 adsorption–desorption cycles. The present work further demonstrates that these pitch-based adsorbents can be used for multiple applications, which have a very extensive practical application prospect. |
| first_indexed | 2024-03-08T09:48:29Z |
| format | Article |
| id | doaj.art-2565cafcd14e499dbe83047ee6d3176c |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-08T09:48:29Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-2565cafcd14e499dbe83047ee6d3176c2024-01-29T14:08:50ZengMDPI AGMolecules1420-30492024-01-0129246310.3390/molecules29020463Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism AnalysisQilin Yang0Hongwei Zhao1Qi Peng2Guang Chen3Jiali Liu4Xinxiu Cao5Shaohui Xiong6Gen Li7Qingquan Liu8School of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaSchool of Material Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, ChinaThe long-term presence of PPCPs in the aqueous environment poses a potentially significant threat to human life and physical health and the safety of the water environment. In our previous work, we investigated low-cost pitch-based HCP adsorbents with an excellent adsorption capacity and magnetic responsiveness through a simple one-step Friedel–Crafts reaction. In this work, we further investigated the adsorption behavior of the prepared pitch-based adsorbents onto three PPCP molecules (DFS, AMP, and antipyrine) in detail. The maximum adsorption capacity of P-MPHCP for DFS was 444.93 mg g<sup>−1</sup>. The adsorption equilibrium and kinetic processes were well described through the Langmuir model and the proposed secondary kinetic model. The negative changes in Gibbs free energy and enthalpy reflected that the adsorption of HCPs onto PPCPs was a spontaneous exothermic process. The recoverability results showed that the adsorption of MPHCP and P-MPHCP onto DFS remained above 95% after 10 adsorption–desorption cycles. The present work further demonstrates that these pitch-based adsorbents can be used for multiple applications, which have a very extensive practical application prospect.https://www.mdpi.com/1420-3049/29/2/463HCP adsorbentspitch-basedmagneticPPCPs |
| spellingShingle | Qilin Yang Hongwei Zhao Qi Peng Guang Chen Jiali Liu Xinxiu Cao Shaohui Xiong Gen Li Qingquan Liu Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis Molecules HCP adsorbents pitch-based magnetic PPCPs |
| title | Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis |
| title_full | Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis |
| title_fullStr | Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis |
| title_full_unstemmed | Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis |
| title_short | Elimination of Pharmaceutical Compounds from Aqueous Solution through Novel Functionalized Pitch-Based Porous Adsorbents: Kinetic, Isotherm, Thermodynamic Studies and Mechanism Analysis |
| title_sort | elimination of pharmaceutical compounds from aqueous solution through novel functionalized pitch based porous adsorbents kinetic isotherm thermodynamic studies and mechanism analysis |
| topic | HCP adsorbents pitch-based magnetic PPCPs |
| url | https://www.mdpi.com/1420-3049/29/2/463 |
| work_keys_str_mv | AT qilinyang eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT hongweizhao eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT qipeng eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT guangchen eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT jialiliu eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT xinxiucao eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT shaohuixiong eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT genli eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis AT qingquanliu eliminationofpharmaceuticalcompoundsfromaqueoussolutionthroughnovelfunctionalizedpitchbasedporousadsorbentskineticisothermthermodynamicstudiesandmechanismanalysis |