The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst
Rice husk silica (RHS), an agriculture waste, was used as a silica source for MFI zeolite synthesis. Magnesium oxide (MgO) nanoparticles (NPs) were grown in zeolite substrates using a solid state reaction. The synthesized nanocomposite (NC) was characterized by X-ray diffraction (XRD), scanning elec...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iranian Environmental Mutagen Society
2020-07-01
|
| Series: | Journal of Water and Environmental Nanotechnology |
| Subjects: | |
| Online Access: | http://www.jwent.net/article_44989_ec769adb33e70089d1af634fdff34586.pdf |
| _version_ | 1818948147216384000 |
|---|---|
| author | Azita Albouyeh Afshin Pourahmad Hassan kefayati |
| author_facet | Azita Albouyeh Afshin Pourahmad Hassan kefayati |
| author_sort | Azita Albouyeh |
| collection | DOAJ |
| description | Rice husk silica (RHS), an agriculture waste, was used as a silica source for MFI zeolite synthesis. Magnesium oxide (MgO) nanoparticles (NPs) were grown in zeolite substrates using a solid state reaction. The synthesized nanocomposite (NC) was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), diffuse reflectance spectroscopy (DRS) and transmission electron microscopy (TEM) techniques. The BET results demonstrated specific surface area of MgO/RHS-MFI NC was smaller than RHS-MFI zeolite. It was founded that magnesium oxide NPs can be encapsulated into pores of RHS-MFI zeolite. The most principal objective of this research was evaluation of the capability of photocatalytic process of MgO/RHS-MFI zeolite heterogeneous nanocomposite over methylene blue (MB) dye. The results showed the MB degradation reached 80 % under UV light at pH=9. RHS-MFI affected the photocatalytic activity of magnesium oxide due to decrease of recombination rate of the electro-hole in magnesium oxide semiconductor. A plausible oxidation mechanism was also proposed. |
| first_indexed | 2024-12-20T08:42:10Z |
| format | Article |
| id | doaj.art-6eb0d3befbad4b889772f64cadcbe5e4 |
| institution | Directory Open Access Journal |
| issn | 2476-7204 2476-6615 |
| language | English |
| last_indexed | 2024-12-20T08:42:10Z |
| publishDate | 2020-07-01 |
| publisher | Iranian Environmental Mutagen Society |
| record_format | Article |
| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj.art-6eb0d3befbad4b889772f64cadcbe5e42022-12-21T19:46:22ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152020-07-015328329310.22090/jwent.2020.03.00844989The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalystAzita Albouyeh0Afshin Pourahmad1Hassan kefayati2Department of Chemistry, Faculty of Science, Rasht Branch, Islamic Azad University, Rasht, IranDepartment of Chemistry, Faculty of Science, Rasht Branch, Islamic Azad University, Rasht, IranDepartment of Chemistry, Faculty of Science, Rasht Branch, Islamic Azad University, Rasht, IranRice husk silica (RHS), an agriculture waste, was used as a silica source for MFI zeolite synthesis. Magnesium oxide (MgO) nanoparticles (NPs) were grown in zeolite substrates using a solid state reaction. The synthesized nanocomposite (NC) was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), diffuse reflectance spectroscopy (DRS) and transmission electron microscopy (TEM) techniques. The BET results demonstrated specific surface area of MgO/RHS-MFI NC was smaller than RHS-MFI zeolite. It was founded that magnesium oxide NPs can be encapsulated into pores of RHS-MFI zeolite. The most principal objective of this research was evaluation of the capability of photocatalytic process of MgO/RHS-MFI zeolite heterogeneous nanocomposite over methylene blue (MB) dye. The results showed the MB degradation reached 80 % under UV light at pH=9. RHS-MFI affected the photocatalytic activity of magnesium oxide due to decrease of recombination rate of the electro-hole in magnesium oxide semiconductor. A plausible oxidation mechanism was also proposed.http://www.jwent.net/article_44989_ec769adb33e70089d1af634fdff34586.pdfrice husk silicapollutionenvironmental nanotechnologygreen chemistry |
| spellingShingle | Azita Albouyeh Afshin Pourahmad Hassan kefayati The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst Journal of Water and Environmental Nanotechnology rice husk silica pollution environmental nanotechnology green chemistry |
| title | The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst |
| title_full | The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst |
| title_fullStr | The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst |
| title_full_unstemmed | The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst |
| title_short | The green synthesis of magnesium oxide nanoparticles in MFI type zeolite and its application as a photocatalyst |
| title_sort | green synthesis of magnesium oxide nanoparticles in mfi type zeolite and its application as a photocatalyst |
| topic | rice husk silica pollution environmental nanotechnology green chemistry |
| url | http://www.jwent.net/article_44989_ec769adb33e70089d1af634fdff34586.pdf |
| work_keys_str_mv | AT azitaalbouyeh thegreensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst AT afshinpourahmad thegreensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst AT hassankefayati thegreensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst AT azitaalbouyeh greensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst AT afshinpourahmad greensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst AT hassankefayati greensynthesisofmagnesiumoxidenanoparticlesinmfitypezeoliteanditsapplicationasaphotocatalyst |