Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite
Diatomite was slightly modified with a sodium hydroxide solution. The resulting material was characterized by using energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption-desorp...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2021-01-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | http://dx.doi.org/10.1155/2021/1014354 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832544712539504640 |
|---|---|
| author | Pham Dinh Du Huynh Thanh Danh |
| author_facet | Pham Dinh Du Huynh Thanh Danh |
| author_sort | Pham Dinh Du |
| collection | DOAJ |
| description | Diatomite was slightly modified with a sodium hydroxide solution. The resulting material was characterized by using energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption-desorption isotherms. The so-treated diatomite has a high specific surface area (77.8 m2/g) and a high concentration of isolated silanol groups on the surface, and therefore, its adsorption capacity increases drastically in both the single and binary adsorption systems for rhodamine B and methylene blue. The binary system is more effective than the single system, with methylene blue being adsorbed more than rhodamine B. The adsorption process is spontaneous and fits well with the Langmuir isothermal model, and it depends on pH significantly. |
| format | Article |
| id | doaj-art-b9a0ea5770d0440b921f7c8a5af3d53b |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-b9a0ea5770d0440b921f7c8a5af3d53b2025-02-03T10:07:23ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382021-01-01202110.1155/2021/10143541014354Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese DiatomitePham Dinh Du0Huynh Thanh Danh1Thu Dau Mot University, Binh Duong 75000, VietnamGiong Rieng High School, Kien Giang 91000, VietnamDiatomite was slightly modified with a sodium hydroxide solution. The resulting material was characterized by using energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption-desorption isotherms. The so-treated diatomite has a high specific surface area (77.8 m2/g) and a high concentration of isolated silanol groups on the surface, and therefore, its adsorption capacity increases drastically in both the single and binary adsorption systems for rhodamine B and methylene blue. The binary system is more effective than the single system, with methylene blue being adsorbed more than rhodamine B. The adsorption process is spontaneous and fits well with the Langmuir isothermal model, and it depends on pH significantly.http://dx.doi.org/10.1155/2021/1014354 |
| spellingShingle | Pham Dinh Du Huynh Thanh Danh Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite Adsorption Science & Technology |
| title | Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite |
| title_full | Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite |
| title_fullStr | Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite |
| title_full_unstemmed | Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite |
| title_short | Single and Binary Adsorption Systems of Rhodamine B and Methylene Blue onto Alkali-Activated Vietnamese Diatomite |
| title_sort | single and binary adsorption systems of rhodamine b and methylene blue onto alkali activated vietnamese diatomite |
| url | http://dx.doi.org/10.1155/2021/1014354 |
| work_keys_str_mv | AT phamdinhdu singleandbinaryadsorptionsystemsofrhodaminebandmethyleneblueontoalkaliactivatedvietnamesediatomite AT huynhthanhdanh singleandbinaryadsorptionsystemsofrhodaminebandmethyleneblueontoalkaliactivatedvietnamesediatomite |