Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts
The photocatalytic activity of Bi2O3 and Ag2O-Bi2O3 was evaluated by degradation of aqueous methyl orange as a model dye effluent. Bi2O3 was synthesized using chemical precipitation method. Structural analysis revealed that Bi2O3 contain a unique well-crystallized phase and the average crystallite s...
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| Format: | Article |
| Language: | English |
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Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
2017-04-01
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| Series: | Bulletin of Chemical Reaction Engineering & Catalysis |
| Subjects: | |
| Online Access: | https://journal.bcrec.id/index.php/bcrec/article/view/623 |
| _version_ | 1797677812071530496 |
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| author | Seyed Ali Hosseini Ramin Saeedi |
| author_facet | Seyed Ali Hosseini Ramin Saeedi |
| author_sort | Seyed Ali Hosseini |
| collection | DOAJ |
| description | The photocatalytic activity of Bi2O3 and Ag2O-Bi2O3 was evaluated by degradation of aqueous methyl orange as a model dye effluent. Bi2O3 was synthesized using chemical precipitation method. Structural analysis revealed that Bi2O3 contain a unique well-crystallized phase and the average crystallite size of 22.4 nm. The SEM analysis showed that the size of Bi2O3 particles was mainly in the range of 16-22 nm. The most important variables affecting the photocatalytic degradation of dyes, namely reaction time, initial pH and catalyst dosage were studied, and their optimal amounts were found at 60 min, 5.58 and 0.025 g, respectively. A good correlation was found between experimental and predicted responses, confirming the reliability of the model. Incorporation of Ag2O in the structure of composite caused decreasing band gap and its response to visible light. Because a high percentage of sunlight is visible light, hence Ag2O-Bi2O3 nano-composite could be used as an efficient visible light driven photocatalyst for degradation of dye effluents by sunlight. |
| first_indexed | 2024-03-11T22:49:35Z |
| format | Article |
| id | doaj.art-45d67a4242a64287a946470688dfaaff |
| institution | Directory Open Access Journal |
| issn | 1978-2993 |
| language | English |
| last_indexed | 2024-03-11T22:49:35Z |
| publishDate | 2017-04-01 |
| publisher | Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS) |
| record_format | Article |
| series | Bulletin of Chemical Reaction Engineering & Catalysis |
| spelling | doaj.art-45d67a4242a64287a946470688dfaaff2023-09-22T03:47:56ZengMasyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)Bulletin of Chemical Reaction Engineering & Catalysis1978-29932017-04-011219610510.9767/bcrec.12.1.623.96-105614Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano PhotocatalystsSeyed Ali Hosseini0Ramin Saeedi1Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran, Islamic Republic ofDepartment of Chemistry, Faculty of Science, Urmia University, Urmia, Iran, Islamic Republic ofThe photocatalytic activity of Bi2O3 and Ag2O-Bi2O3 was evaluated by degradation of aqueous methyl orange as a model dye effluent. Bi2O3 was synthesized using chemical precipitation method. Structural analysis revealed that Bi2O3 contain a unique well-crystallized phase and the average crystallite size of 22.4 nm. The SEM analysis showed that the size of Bi2O3 particles was mainly in the range of 16-22 nm. The most important variables affecting the photocatalytic degradation of dyes, namely reaction time, initial pH and catalyst dosage were studied, and their optimal amounts were found at 60 min, 5.58 and 0.025 g, respectively. A good correlation was found between experimental and predicted responses, confirming the reliability of the model. Incorporation of Ag2O in the structure of composite caused decreasing band gap and its response to visible light. Because a high percentage of sunlight is visible light, hence Ag2O-Bi2O3 nano-composite could be used as an efficient visible light driven photocatalyst for degradation of dye effluents by sunlight.https://journal.bcrec.id/index.php/bcrec/article/view/623ag2o-bi2o3 nano-compositephotocatalystbismuth nano-oxidedye degradationresponse surface methodology |
| spellingShingle | Seyed Ali Hosseini Ramin Saeedi Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts Bulletin of Chemical Reaction Engineering & Catalysis ag2o-bi2o3 nano-composite photocatalyst bismuth nano-oxide dye degradation response surface methodology |
| title | Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts |
| title_full | Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts |
| title_fullStr | Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts |
| title_full_unstemmed | Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts |
| title_short | Photocatalytic Degradation of Methyl Orange on Bi2O3 and Ag2O-Bi2O3 Nano Photocatalysts |
| title_sort | photocatalytic degradation of methyl orange on bi2o3 and ag2o bi2o3 nano photocatalysts |
| topic | ag2o-bi2o3 nano-composite photocatalyst bismuth nano-oxide dye degradation response surface methodology |
| url | https://journal.bcrec.id/index.php/bcrec/article/view/623 |
| work_keys_str_mv | AT seyedalihosseini photocatalyticdegradationofmethylorangeonbi2o3andag2obi2o3nanophotocatalysts AT raminsaeedi photocatalyticdegradationofmethylorangeonbi2o3andag2obi2o3nanophotocatalysts |