Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity
Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2015-02-01
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| Series: | Beilstein Journal of Nanotechnology |
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| Online Access: | https://doi.org/10.3762/bjnano.6.43 |
| _version_ | 1819128933233197056 |
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| author | Kah Hon Leong Hong Ye Chu Shaliza Ibrahim Pichiah Saravanan |
| author_facet | Kah Hon Leong Hong Ye Chu Shaliza Ibrahim Pichiah Saravanan |
| author_sort | Kah Hon Leong |
| collection | DOAJ |
| description | Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET surface area, UV–vis diffuse reflectance spectra (UV-DRS), Raman and photoluminescence (PL) analyses. The simple and smart synthesis anchored well the deposition with controlled Pd NPs size ranging between 17 and 29 nm onto the surface of TiO2. Thus, it gives the characteristic for Pd NPs to absorb light in the visible region obtained through localized surface plasmon resonance (LSPRs). Apparently, the photocatalytic activity of the prepared photocatalysts was evaluated by degrading the endocrine disrupting compound (EDC) amoxicillin (AMX) excited under an artificial visible light source. In the preliminary run, almost complete degradation (97.5%) was achieved in 5 h with 0.5 wt % Pd loading and the degradation followed pseudo-first-order kinetics. The reusability trend proved the photostability of the prepared photocatalysts. Hence, the study provides a new insight about the modification of TiO2 with noble metals in order to enhance the absorption in the visible-light region for superior photocatalytic performance. |
| first_indexed | 2024-12-22T08:35:41Z |
| format | Article |
| id | doaj.art-bc796e9d949848d8a85fc8f36ca81b28 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-22T08:35:41Z |
| publishDate | 2015-02-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-bc796e9d949848d8a85fc8f36ca81b282022-12-21T18:32:22ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862015-02-016142843710.3762/bjnano.6.432190-4286-6-43Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activityKah Hon Leong0Hong Ye Chu1Shaliza Ibrahim2Pichiah Saravanan3Environmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaFreely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET surface area, UV–vis diffuse reflectance spectra (UV-DRS), Raman and photoluminescence (PL) analyses. The simple and smart synthesis anchored well the deposition with controlled Pd NPs size ranging between 17 and 29 nm onto the surface of TiO2. Thus, it gives the characteristic for Pd NPs to absorb light in the visible region obtained through localized surface plasmon resonance (LSPRs). Apparently, the photocatalytic activity of the prepared photocatalysts was evaluated by degrading the endocrine disrupting compound (EDC) amoxicillin (AMX) excited under an artificial visible light source. In the preliminary run, almost complete degradation (97.5%) was achieved in 5 h with 0.5 wt % Pd loading and the degradation followed pseudo-first-order kinetics. The reusability trend proved the photostability of the prepared photocatalysts. Hence, the study provides a new insight about the modification of TiO2 with noble metals in order to enhance the absorption in the visible-light region for superior photocatalytic performance.https://doi.org/10.3762/bjnano.6.43endocrine disrupting compoundnano photocatalystsnoble metalphotodepositionsunlight |
| spellingShingle | Kah Hon Leong Hong Ye Chu Shaliza Ibrahim Pichiah Saravanan Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity Beilstein Journal of Nanotechnology endocrine disrupting compound nano photocatalysts noble metal photodeposition sunlight |
| title | Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity |
| title_full | Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity |
| title_fullStr | Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity |
| title_full_unstemmed | Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity |
| title_short | Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity |
| title_sort | palladium nanoparticles anchored to anatase tio2 for enhanced surface plasmon resonance stimulated visible light driven photocatalytic activity |
| topic | endocrine disrupting compound nano photocatalysts noble metal photodeposition sunlight |
| url | https://doi.org/10.3762/bjnano.6.43 |
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