The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies
Adopting banana peel as a raw material, the adsorption properties of banana peel hydrothermal carbon modified with a KOH solution for lead ions in aqueous solution were studied. The surface structure and functional groups of the modified hydrothermal carbon were analyzed by means of X-ray diffractio...
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2024-01-01
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| author | Tao Bai Jiaxin Zhao Laixin Tian Luming Zhang Zhiping Jin |
| author_facet | Tao Bai Jiaxin Zhao Laixin Tian Luming Zhang Zhiping Jin |
| author_sort | Tao Bai |
| collection | DOAJ |
| description | Adopting banana peel as a raw material, the adsorption properties of banana peel hydrothermal carbon modified with a KOH solution for lead ions in aqueous solution were studied. The surface structure and functional groups of the modified hydrothermal carbon were analyzed by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, the Brunner–Emmet–Teller (BET) method, element analysis, and Raman spectroscopy. The results showed that an adsorption capacity of 42.92 mg/g and a removal rate of 86.84% were achieved when the banana peel hydrothermal carbon was modified with a KOH solution of 0.5 mol/L, with a pH of 6 and a solid–liquid ratio of 1 g/L. The equilibrium adsorption time for lead ions in solution being adsorbed using KOH-modified hydrothermal carbon was 240 min, the adsorption process satisfied the quasi-second-order kinetic model and the Redlich–Peterson isotherm equation, and the equilibrium removal efficiency was 88.62%. The adsorption of lead ions using KOH-modified hydrothermal carbon is mainly chemical–physical adsorption. |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-08T10:43:07Z |
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| spelling | doaj.art-3b8784a1fbac4f29a5b2ffafecda51262024-01-26T17:26:36ZengMDPI AGMaterials1996-19442024-01-0117231110.3390/ma17020311The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic StudiesTao Bai0Jiaxin Zhao1Laixin Tian2Luming Zhang3Zhiping Jin4School of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, ChinaSchool of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, ChinaSchool of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, ChinaSchool of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, ChinaSchool of Electric Power, Civil Engineering and Architecture, Shanxi University, Taiyuan 030006, ChinaAdopting banana peel as a raw material, the adsorption properties of banana peel hydrothermal carbon modified with a KOH solution for lead ions in aqueous solution were studied. The surface structure and functional groups of the modified hydrothermal carbon were analyzed by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier-transform infrared (FT-IR) spectroscopy, the Brunner–Emmet–Teller (BET) method, element analysis, and Raman spectroscopy. The results showed that an adsorption capacity of 42.92 mg/g and a removal rate of 86.84% were achieved when the banana peel hydrothermal carbon was modified with a KOH solution of 0.5 mol/L, with a pH of 6 and a solid–liquid ratio of 1 g/L. The equilibrium adsorption time for lead ions in solution being adsorbed using KOH-modified hydrothermal carbon was 240 min, the adsorption process satisfied the quasi-second-order kinetic model and the Redlich–Peterson isotherm equation, and the equilibrium removal efficiency was 88.62%. The adsorption of lead ions using KOH-modified hydrothermal carbon is mainly chemical–physical adsorption.https://www.mdpi.com/1996-1944/17/2/311modified hydrothermal carbonbanana peellead ion removaladsorption mechanism |
| spellingShingle | Tao Bai Jiaxin Zhao Laixin Tian Luming Zhang Zhiping Jin The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies Materials modified hydrothermal carbon banana peel lead ion removal adsorption mechanism |
| title | The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies |
| title_full | The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies |
| title_fullStr | The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies |
| title_full_unstemmed | The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies |
| title_short | The Adsorption of Pb(II) from Aqueous Solution Using KOH-Modified Banana Peel Hydrothermal Carbon: Adsorption Properties and Mechanistic Studies |
| title_sort | adsorption of pb ii from aqueous solution using koh modified banana peel hydrothermal carbon adsorption properties and mechanistic studies |
| topic | modified hydrothermal carbon banana peel lead ion removal adsorption mechanism |
| url | https://www.mdpi.com/1996-1944/17/2/311 |
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