3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution
A novel adsorbent of N-doped carbonized microspheres were developed from chitin (N-doped CM-chitin) for adsorption of Congo red (CR). The N-doped CM-chitin showed spherical shape and consisted of carbon nanofibers with 3D hierarchical architecture. There were many micro/nano-pores existing in N-dope...
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MDPI AG
2022-12-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/1/684 |
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| author | Taimei Cai Huijie Chen Lihua Yao Hailong Peng |
| author_facet | Taimei Cai Huijie Chen Lihua Yao Hailong Peng |
| author_sort | Taimei Cai |
| collection | DOAJ |
| description | A novel adsorbent of N-doped carbonized microspheres were developed from chitin (N-doped CM-chitin) for adsorption of Congo red (CR). The N-doped CM-chitin showed spherical shape and consisted of carbon nanofibers with 3D hierarchical architecture. There were many micro/nano-pores existing in N-doped CM-chitin with high surface area (455.703 m<sup>2</sup> g<sup>−1</sup>). The N element was uniformly distributed on the carbon nanofibers and formed with oxidize-N graphitic-N, pyrrolic-N, and pyridinic-N. The N-doped CM-chitin showed excellent adsorption capability for CR and the maximum adsorption amount was approximate 954.47 mg g<sup>−1</sup>. The π-π/n-π interaction, hydrogen-bond interactions, and pore filling adsorption might be the adsorption mechanisms. The adsorption of N-doped CM-chitin was considered as a spontaneous endothermic adsorption process, and which well conformed to the pseudo-second-order kinetic and Langmuir isotherm model. The N-doped CM-chitin exhibited an effective adsorption performance for dynamic CR water with good reusability. Therefore, this work provides new insights into the fabrication of a novel N-doped adsorbent from low-cost and waste biomasses. |
| first_indexed | 2024-03-11T09:58:49Z |
| format | Article |
| id | doaj.art-501764bc145a465595cec976f8d9e782 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-11T09:58:49Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-501764bc145a465595cec976f8d9e7822023-11-16T15:36:57ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672022-12-0124168410.3390/ijms240106843D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous SolutionTaimei Cai0Huijie Chen1Lihua Yao2Hailong Peng3School of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, ChinaSchool of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, ChinaSchool of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, ChinaSchool of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, ChinaA novel adsorbent of N-doped carbonized microspheres were developed from chitin (N-doped CM-chitin) for adsorption of Congo red (CR). The N-doped CM-chitin showed spherical shape and consisted of carbon nanofibers with 3D hierarchical architecture. There were many micro/nano-pores existing in N-doped CM-chitin with high surface area (455.703 m<sup>2</sup> g<sup>−1</sup>). The N element was uniformly distributed on the carbon nanofibers and formed with oxidize-N graphitic-N, pyrrolic-N, and pyridinic-N. The N-doped CM-chitin showed excellent adsorption capability for CR and the maximum adsorption amount was approximate 954.47 mg g<sup>−1</sup>. The π-π/n-π interaction, hydrogen-bond interactions, and pore filling adsorption might be the adsorption mechanisms. The adsorption of N-doped CM-chitin was considered as a spontaneous endothermic adsorption process, and which well conformed to the pseudo-second-order kinetic and Langmuir isotherm model. The N-doped CM-chitin exhibited an effective adsorption performance for dynamic CR water with good reusability. Therefore, this work provides new insights into the fabrication of a novel N-doped adsorbent from low-cost and waste biomasses.https://www.mdpi.com/1422-0067/24/1/684chitinN-doped carbonized microspherescongo redremarkable adsorption |
| spellingShingle | Taimei Cai Huijie Chen Lihua Yao Hailong Peng 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution International Journal of Molecular Sciences chitin N-doped carbonized microspheres congo red remarkable adsorption |
| title | 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution |
| title_full | 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution |
| title_fullStr | 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution |
| title_full_unstemmed | 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution |
| title_short | 3D Hierarchical Porous and N-Doped Carbonized Microspheres Derived from Chitin for Remarkable Adsorption of Congo Red in Aqueous Solution |
| title_sort | 3d hierarchical porous and n doped carbonized microspheres derived from chitin for remarkable adsorption of congo red in aqueous solution |
| topic | chitin N-doped carbonized microspheres congo red remarkable adsorption |
| url | https://www.mdpi.com/1422-0067/24/1/684 |
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