Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation
Nanophotocatalyst MnTiO3 powders were synthesized by sol-gel technique and characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), as well as their thermal behavior has been studied by differential thermal and thermogravimetric analyses (DTA/TGA). Powders m...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844020305089 |
| _version_ | 1828163793697374208 |
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| author | Suhila Alkaykh Aïcha Mbarek Elbashir E. Ali-Shattle |
| author_facet | Suhila Alkaykh Aïcha Mbarek Elbashir E. Ali-Shattle |
| author_sort | Suhila Alkaykh |
| collection | DOAJ |
| description | Nanophotocatalyst MnTiO3 powders were synthesized by sol-gel technique and characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), as well as their thermal behavior has been studied by differential thermal and thermogravimetric analyses (DTA/TGA). Powders morphology was analyzed by means of Transmission electron microscopy (TEM). Effect of various process parameters like amount of photocatalyst, dye concentration, solution pH and irradiation time on the extent of removal of dye were studied in detail. The photo-degradation was relatively higher using lower amount (0.005 g) of semiconductor, reached rate of 75% and 70% after 240 min for mixed MnTiO3/TiO2 and pure MnTiO3 nanocatalysts. The kinetic model of photocatalytic degradation of MB follows pseudo-first-order kinetic with a high correlation coefficient values (R2 > 0.95). These results underline the use of effective, low-cost and easily available MnTiO3 photocatalyst for the decomposition of pollutants to water under natural sunlight. |
| first_indexed | 2024-04-12T01:15:55Z |
| format | Article |
| id | doaj.art-dd3b36270be14d49a864d2539206e659 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-12T01:15:55Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-dd3b36270be14d49a864d2539206e6592022-12-22T03:53:59ZengElsevierHeliyon2405-84402020-04-0164e03663Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiationSuhila Alkaykh0Aïcha Mbarek1Elbashir E. Ali-Shattle2Chemistry Department, School of Basic Sciences, Libyan Academy Tripoli-Libya, LibyaLaboratory of Advanced Materials, National School of Engineers of Sfax, University of Sfax, Tunisia; Corresponding author.Chemistry Department, College of Science, Tripoli University, Tripoli, LibyaNanophotocatalyst MnTiO3 powders were synthesized by sol-gel technique and characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), as well as their thermal behavior has been studied by differential thermal and thermogravimetric analyses (DTA/TGA). Powders morphology was analyzed by means of Transmission electron microscopy (TEM). Effect of various process parameters like amount of photocatalyst, dye concentration, solution pH and irradiation time on the extent of removal of dye were studied in detail. The photo-degradation was relatively higher using lower amount (0.005 g) of semiconductor, reached rate of 75% and 70% after 240 min for mixed MnTiO3/TiO2 and pure MnTiO3 nanocatalysts. The kinetic model of photocatalytic degradation of MB follows pseudo-first-order kinetic with a high correlation coefficient values (R2 > 0.95). These results underline the use of effective, low-cost and easily available MnTiO3 photocatalyst for the decomposition of pollutants to water under natural sunlight.http://www.sciencedirect.com/science/article/pii/S2405844020305089Inorganic chemistryMaterials chemistryMnTiO3Solar lightMethylene blue dyePhotocatalysis |
| spellingShingle | Suhila Alkaykh Aïcha Mbarek Elbashir E. Ali-Shattle Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation Heliyon Inorganic chemistry Materials chemistry MnTiO3 Solar light Methylene blue dye Photocatalysis |
| title | Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation |
| title_full | Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation |
| title_fullStr | Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation |
| title_full_unstemmed | Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation |
| title_short | Photocatalytic degradation of methylene blue dye in aqueous solution by MnTiO3 nanoparticles under sunlight irradiation |
| title_sort | photocatalytic degradation of methylene blue dye in aqueous solution by mntio3 nanoparticles under sunlight irradiation |
| topic | Inorganic chemistry Materials chemistry MnTiO3 Solar light Methylene blue dye Photocatalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2405844020305089 |
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