Adsorption performance of basic fuchsin on alkali-activated diatomite
The natural diatomite was treated with NaOH to obtain alkali-activated diatomite. The materials were systematically characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopic, scanning electron microscopy, and N 2 adsorption–desorption. Meanwhile, the pot...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2020-07-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1177/0263617420922084 |
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| _version_ | 1841564503579295744 |
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| author | Yong-Hua Zhao Jin-Tao Geng Jie-Chuan Cai Yu-Fu Cai Chun-Yan Cao |
| author_facet | Yong-Hua Zhao Jin-Tao Geng Jie-Chuan Cai Yu-Fu Cai Chun-Yan Cao |
| author_sort | Yong-Hua Zhao |
| collection | DOAJ |
| description | The natural diatomite was treated with NaOH to obtain alkali-activated diatomite. The materials were systematically characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopic, scanning electron microscopy, and N 2 adsorption–desorption. Meanwhile, the potential use of alkali-activated diatomite as adsorbent for the removal of basic fuchsin from aqueous solution was assessed by batch experiment. Results indicated that the structure and textural properties of diatomite were obviously changed via alkali activation, and then affecting its adsorption performance. The adsorption capacity of alkali-activated diatomite for basic fuchsin was higher than that of natural diatomite. In the case of alkali-activated diatomite, its adsorption capacity was increased with increasing the activation temperature, and the diatomite activated at 115°C (alkali-activated diatomite-115) exhibited the maximum adsorption capacity. The pseudo-first-order kinetics and the Sips isotherm model were preferable to describe the adsorption process of basic fuchsin on alkali-activated diatomite-115 and the thermodynamic parameters indicated that the adsorption process was endothermic and spontaneous. |
| format | Article |
| id | doaj-art-eb69a5a64f70456a9d60c4c8fe3bfc54 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2020-07-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-eb69a5a64f70456a9d60c4c8fe3bfc542025-01-02T22:39:31ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382020-07-013810.1177/0263617420922084Adsorption performance of basic fuchsin on alkali-activated diatomiteYong-Hua ZhaoJin-Tao GengJie-Chuan CaiYu-Fu CaiChun-Yan CaoThe natural diatomite was treated with NaOH to obtain alkali-activated diatomite. The materials were systematically characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopic, scanning electron microscopy, and N 2 adsorption–desorption. Meanwhile, the potential use of alkali-activated diatomite as adsorbent for the removal of basic fuchsin from aqueous solution was assessed by batch experiment. Results indicated that the structure and textural properties of diatomite were obviously changed via alkali activation, and then affecting its adsorption performance. The adsorption capacity of alkali-activated diatomite for basic fuchsin was higher than that of natural diatomite. In the case of alkali-activated diatomite, its adsorption capacity was increased with increasing the activation temperature, and the diatomite activated at 115°C (alkali-activated diatomite-115) exhibited the maximum adsorption capacity. The pseudo-first-order kinetics and the Sips isotherm model were preferable to describe the adsorption process of basic fuchsin on alkali-activated diatomite-115 and the thermodynamic parameters indicated that the adsorption process was endothermic and spontaneous.https://doi.org/10.1177/0263617420922084 |
| spellingShingle | Yong-Hua Zhao Jin-Tao Geng Jie-Chuan Cai Yu-Fu Cai Chun-Yan Cao Adsorption performance of basic fuchsin on alkali-activated diatomite Adsorption Science & Technology |
| title | Adsorption performance of basic fuchsin on alkali-activated diatomite |
| title_full | Adsorption performance of basic fuchsin on alkali-activated diatomite |
| title_fullStr | Adsorption performance of basic fuchsin on alkali-activated diatomite |
| title_full_unstemmed | Adsorption performance of basic fuchsin on alkali-activated diatomite |
| title_short | Adsorption performance of basic fuchsin on alkali-activated diatomite |
| title_sort | adsorption performance of basic fuchsin on alkali activated diatomite |
| url | https://doi.org/10.1177/0263617420922084 |
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