Synthesis of sodium silicate crystals from rice husk ash
The rich husk is an agricultural waste of rice cultivation worldwide, which is highly rich in amorphous silica. Rice husk obtained from Dagiri was pyrolyzed at 750ºC to give white ash (RHA) which was further treated with acid (ARHA). The ash was reacted with sodium hydroxide at 90ºC for 2.5 h to pro...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2023-01-01
|
| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/0352-5139/2023/0352-51392300040E.pdf |
| _version_ | 1827586841471090688 |
|---|---|
| author | Emmanuel Stella Adedunni Sallau Alhassan Adeku Adedirin Oluwaseye Ibrahim Hussain Doko Buga Mohammed Lawal Okereke Anthony Ozonyia Gertrude Ngozi Alabi Fortune Miebaka |
| author_facet | Emmanuel Stella Adedunni Sallau Alhassan Adeku Adedirin Oluwaseye Ibrahim Hussain Doko Buga Mohammed Lawal Okereke Anthony Ozonyia Gertrude Ngozi Alabi Fortune Miebaka |
| author_sort | Emmanuel Stella Adedunni |
| collection | DOAJ |
| description | The rich husk is an agricultural waste of rice cultivation worldwide, which is highly rich in amorphous silica. Rice husk obtained from Dagiri was pyrolyzed at 750ºC to give white ash (RHA) which was further treated with acid (ARHA). The ash was reacted with sodium hydroxide at 90ºC for 2.5 h to produce sodium silicate crystals. Sodium silicate synthesized in the study was characterized for some physicochemical parameters. Their structural and morphological properties were assessed using a Fourier transform infra-red spectrophotometer (FTIR), X-ray diffractometer (XRD) and scanning electron microscope (SEM). The mineralogical composition of the ash and sodium silicate was investigated with energy-dispersive X-ray fluorescence (EDXRF) spectrometer. The sodium silicate produced has a melting point of 61ºC, pH of 12.03 and appeared as brownish–white to clear-white in colour. The RHA and ARHA from XRD investigation showed patterns which match the mineral phase cristobalite, while that of the sodium silicate XRD patterns match the mineral heptahydrate disodium trioxosilicate as the most dominant phase. Rietveld refinement of the XRD pattern for the sodium silicate gave Rwp = 12.81, Rexp = 5.55, χ2 = 5.3274 and GoF = 2.3081 against a dual phase analysis. The crystals synthesized are suitable for use in cosmetic formulations. |
| first_indexed | 2024-03-09T00:07:33Z |
| format | Article |
| id | doaj.art-cf63837abc2c467c9a0b6cb63a898752 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 1820-7421 |
| language | English |
| last_indexed | 2024-03-09T00:07:33Z |
| publishDate | 2023-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-cf63837abc2c467c9a0b6cb63a8987522023-12-12T13:08:14ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212023-01-018810999101210.2298/JSC221126040E0352-51392300040ESynthesis of sodium silicate crystals from rice husk ashEmmanuel Stella Adedunni0https://orcid.org/0000-0001-9392-666XSallau Alhassan Adeku1https://orcid.org/0000-0002-9558-9377Adedirin Oluwaseye2https://orcid.org/0000-0002-7220-3275Ibrahim Hussain Doko3Buga Mohammed Lawal4Okereke Anthony5Ozonyia Gertrude Ngozi6Alabi Fortune Miebaka7https://orcid.org/0009-0000-5365-4081Chemistry Advanced Research Center, SHESTCO, Abuja, NigeriaChemistry Advanced Research Center, SHESTCO, Abuja, NigeriaChemistry Advanced Research Center, SHESTCO, Abuja, NigeriaRaw Materials Research and Development Council, RMRDC, Maitama, AbujaRaw Materials Research and Development Council, RMRDC, Maitama, AbujaRaw Materials Research and Development Council, RMRDC, Maitama, AbujaRaw Materials Research and Development Council, RMRDC, Maitama, AbujaRaw Materials Research and Development Council, RMRDC, Maitama, AbujaThe rich husk is an agricultural waste of rice cultivation worldwide, which is highly rich in amorphous silica. Rice husk obtained from Dagiri was pyrolyzed at 750ºC to give white ash (RHA) which was further treated with acid (ARHA). The ash was reacted with sodium hydroxide at 90ºC for 2.5 h to produce sodium silicate crystals. Sodium silicate synthesized in the study was characterized for some physicochemical parameters. Their structural and morphological properties were assessed using a Fourier transform infra-red spectrophotometer (FTIR), X-ray diffractometer (XRD) and scanning electron microscope (SEM). The mineralogical composition of the ash and sodium silicate was investigated with energy-dispersive X-ray fluorescence (EDXRF) spectrometer. The sodium silicate produced has a melting point of 61ºC, pH of 12.03 and appeared as brownish–white to clear-white in colour. The RHA and ARHA from XRD investigation showed patterns which match the mineral phase cristobalite, while that of the sodium silicate XRD patterns match the mineral heptahydrate disodium trioxosilicate as the most dominant phase. Rietveld refinement of the XRD pattern for the sodium silicate gave Rwp = 12.81, Rexp = 5.55, χ2 = 5.3274 and GoF = 2.3081 against a dual phase analysis. The crystals synthesized are suitable for use in cosmetic formulations.https://doiserbia.nb.rs/img/doi/0352-5139/2023/0352-51392300040E.pdfacid treated ashcosmeticcrystal structurepaddysilicawater glass |
| spellingShingle | Emmanuel Stella Adedunni Sallau Alhassan Adeku Adedirin Oluwaseye Ibrahim Hussain Doko Buga Mohammed Lawal Okereke Anthony Ozonyia Gertrude Ngozi Alabi Fortune Miebaka Synthesis of sodium silicate crystals from rice husk ash Journal of the Serbian Chemical Society acid treated ash cosmetic crystal structure paddy silica water glass |
| title | Synthesis of sodium silicate crystals from rice husk ash |
| title_full | Synthesis of sodium silicate crystals from rice husk ash |
| title_fullStr | Synthesis of sodium silicate crystals from rice husk ash |
| title_full_unstemmed | Synthesis of sodium silicate crystals from rice husk ash |
| title_short | Synthesis of sodium silicate crystals from rice husk ash |
| title_sort | synthesis of sodium silicate crystals from rice husk ash |
| topic | acid treated ash cosmetic crystal structure paddy silica water glass |
| url | https://doiserbia.nb.rs/img/doi/0352-5139/2023/0352-51392300040E.pdf |
| work_keys_str_mv | AT emmanuelstellaadedunni synthesisofsodiumsilicatecrystalsfromricehuskash AT sallaualhassanadeku synthesisofsodiumsilicatecrystalsfromricehuskash AT adedirinoluwaseye synthesisofsodiumsilicatecrystalsfromricehuskash AT ibrahimhussaindoko synthesisofsodiumsilicatecrystalsfromricehuskash AT bugamohammedlawal synthesisofsodiumsilicatecrystalsfromricehuskash AT okerekeanthony synthesisofsodiumsilicatecrystalsfromricehuskash AT ozonyiagertrudengozi synthesisofsodiumsilicatecrystalsfromricehuskash AT alabifortunemiebaka synthesisofsodiumsilicatecrystalsfromricehuskash |