Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions
Multi-walled carbon nanotubes (MWCNTs) encapsulated by polyaniline (PANI) were synthesized by in situ polymerization. Scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and thermal gravimetric analysis (TGA) were used to characterize the synthesized composites (O-MWC...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2018-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617416687564 |
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| author | Kaiyue Wu Jingang Yu Xinyu Jiang |
| author_facet | Kaiyue Wu Jingang Yu Xinyu Jiang |
| author_sort | Kaiyue Wu |
| collection | DOAJ |
| description | Multi-walled carbon nanotubes (MWCNTs) encapsulated by polyaniline (PANI) were synthesized by in situ polymerization. Scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and thermal gravimetric analysis (TGA) were used to characterize the synthesized composites (O-MWCNTs/PANI), and the surface area was calculated by the Brunauer–Emmett–Teller (BET) method. The removal capacity of alizarin yellow R (AYR) with O-MWCNTs/PANI was further investigated. Experiments were conducted to optimize the adsorption conditions, including contact time, pH, initial concentration of AYR and temperature. The results showed that the maximum adsorption capacity for AYR was 884.80 mg/g. The adsorption kinetics and the adsorption isotherm could be better described by the pseudo-second-order model and the Langmuir isotherm, respectively. Energy changes revealed that the adsorption process was exothermic and spontaneous in nature. Additionally, the O-MWCNTs/PANI showed higher adsorption capacity than pristine MWCNTs or PANI. Therefore, O-MWCNTs/PANI would be applied as an efficient adsorbent for the removal of dye from water. |
| format | Article |
| id | doaj-art-e4de4f1693ff41ffbd781a9d328cc6ce |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2018-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-e4de4f1693ff41ffbd781a9d328cc6ce2025-02-03T10:07:34ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382018-02-013610.1177/0263617416687564Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutionsKaiyue WuJingang YuXinyu JiangMulti-walled carbon nanotubes (MWCNTs) encapsulated by polyaniline (PANI) were synthesized by in situ polymerization. Scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy and thermal gravimetric analysis (TGA) were used to characterize the synthesized composites (O-MWCNTs/PANI), and the surface area was calculated by the Brunauer–Emmett–Teller (BET) method. The removal capacity of alizarin yellow R (AYR) with O-MWCNTs/PANI was further investigated. Experiments were conducted to optimize the adsorption conditions, including contact time, pH, initial concentration of AYR and temperature. The results showed that the maximum adsorption capacity for AYR was 884.80 mg/g. The adsorption kinetics and the adsorption isotherm could be better described by the pseudo-second-order model and the Langmuir isotherm, respectively. Energy changes revealed that the adsorption process was exothermic and spontaneous in nature. Additionally, the O-MWCNTs/PANI showed higher adsorption capacity than pristine MWCNTs or PANI. Therefore, O-MWCNTs/PANI would be applied as an efficient adsorbent for the removal of dye from water.https://doi.org/10.1177/0263617416687564 |
| spellingShingle | Kaiyue Wu Jingang Yu Xinyu Jiang Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions Adsorption Science & Technology |
| title | Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions |
| title_full | Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions |
| title_fullStr | Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions |
| title_full_unstemmed | Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions |
| title_short | Multi-walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow R from aqueous solutions |
| title_sort | multi walled carbon nanotubes modified by polyaniline for the removal of alizarin yellow r from aqueous solutions |
| url | https://doi.org/10.1177/0263617416687564 |
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