Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction
The SiO2@α-Fe2O3/ZnO metal oxide nanocomposites employed in this study were obtained using the sol-gel method. Their photocatalytic activities were enhanced by photo-Fenton reactions. The metal oxide composite of ZnO and α-Fe2O3 nanoparticles were deposited on the SiO2 nanosphere...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-09-01
|
| Series: | Inorganics |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2304-6740/6/3/90 |
| _version_ | 1818289955961569280 |
|---|---|
| author | Kasimayan Uma Sridharan Balu Guan-Ting Pan Thomas C.-K. Yang |
| author_facet | Kasimayan Uma Sridharan Balu Guan-Ting Pan Thomas C.-K. Yang |
| author_sort | Kasimayan Uma |
| collection | DOAJ |
| description | The SiO2@α-Fe2O3/ZnO metal oxide nanocomposites employed in this study were obtained using the sol-gel method. Their photocatalytic activities were enhanced by photo-Fenton reactions. The metal oxide composite of ZnO and α-Fe2O3 nanoparticles were deposited on the SiO2 nanospheres intended for visible light photocatalysis. Further, the as-synthesized SiO2@α-Fe2O3/ZnO nanocomposites exhibited a robust crystallinity and a high adsorption of dye molecules when compared to SiO2@ZnO and SiO2@α-Fe2O3 nanocomposites, respectively. The experimental results demonstrated a rapid Methylene Blue (MB) degradation among these catalysts within short intervals of time with the addition of α-Fe2O3/ZnO mixed metal oxide catalysts on the SiO2 nanospheres. Finally, a photo-Fenton reaction was implemented to confirm the presence of the hydroxyl (OH) radicals, which are powerful agents used for the degradation of organic pollutants. |
| first_indexed | 2024-12-13T02:20:30Z |
| format | Article |
| id | doaj.art-8b9192a17eaf41e39adc714341734dc5 |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-12-13T02:20:30Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-8b9192a17eaf41e39adc714341734dc52022-12-22T00:02:46ZengMDPI AGInorganics2304-67402018-09-01639010.3390/inorganics6030090inorganics6030090Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton ReactionKasimayan Uma0Sridharan Balu1Guan-Ting Pan2Thomas C.-K. Yang3Precision Analysis and Materials Research Center, National Taipei University of Technology, Taipei 106, TaiwanDepartment of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, TaiwanDepartment of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, TaiwanPrecision Analysis and Materials Research Center, National Taipei University of Technology, Taipei 106, TaiwanThe SiO2@α-Fe2O3/ZnO metal oxide nanocomposites employed in this study were obtained using the sol-gel method. Their photocatalytic activities were enhanced by photo-Fenton reactions. The metal oxide composite of ZnO and α-Fe2O3 nanoparticles were deposited on the SiO2 nanospheres intended for visible light photocatalysis. Further, the as-synthesized SiO2@α-Fe2O3/ZnO nanocomposites exhibited a robust crystallinity and a high adsorption of dye molecules when compared to SiO2@ZnO and SiO2@α-Fe2O3 nanocomposites, respectively. The experimental results demonstrated a rapid Methylene Blue (MB) degradation among these catalysts within short intervals of time with the addition of α-Fe2O3/ZnO mixed metal oxide catalysts on the SiO2 nanospheres. Finally, a photo-Fenton reaction was implemented to confirm the presence of the hydroxyl (OH) radicals, which are powerful agents used for the degradation of organic pollutants.http://www.mdpi.com/2304-6740/6/3/90photo-Fenton reactionnanocompositesphotocatalytic activitydegradation |
| spellingShingle | Kasimayan Uma Sridharan Balu Guan-Ting Pan Thomas C.-K. Yang Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction Inorganics photo-Fenton reaction nanocomposites photocatalytic activity degradation |
| title | Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction |
| title_full | Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction |
| title_fullStr | Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction |
| title_full_unstemmed | Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction |
| title_short | Assembly of ZnO Nanoparticles on SiO2@α-Fe2O3 Nanocomposites for an Efficient Photo-Fenton Reaction |
| title_sort | assembly of zno nanoparticles on sio2 α fe2o3 nanocomposites for an efficient photo fenton reaction |
| topic | photo-Fenton reaction nanocomposites photocatalytic activity degradation |
| url | http://www.mdpi.com/2304-6740/6/3/90 |
| work_keys_str_mv | AT kasimayanuma assemblyofznonanoparticlesonsio2afe2o3nanocompositesforanefficientphotofentonreaction AT sridharanbalu assemblyofznonanoparticlesonsio2afe2o3nanocompositesforanefficientphotofentonreaction AT guantingpan assemblyofznonanoparticlesonsio2afe2o3nanocompositesforanefficientphotofentonreaction AT thomasckyang assemblyofznonanoparticlesonsio2afe2o3nanocompositesforanefficientphotofentonreaction |