Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green
For the first time, capability of the cesium salt of sodium 30-tungstopentaphosphate, the so-called Preyssler’s anion (CsP5), as a green and eco-friendly polyoxometalate was investigated in the synthesis of gold nanoparticles and decoration of titanium dioxide with gold nanoparticles. Gold nanoparti...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/507329 |
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| author | Fatemeh Farrash Bamoharram Afsaneh Moghadam Jafari Ali Ayati Bahareh Tanhaei Mika Sillanpää |
| author_facet | Fatemeh Farrash Bamoharram Afsaneh Moghadam Jafari Ali Ayati Bahareh Tanhaei Mika Sillanpää |
| author_sort | Fatemeh Farrash Bamoharram |
| collection | DOAJ |
| description | For the first time, capability of the cesium salt of sodium 30-tungstopentaphosphate, the so-called Preyssler’s anion (CsP5), as a green and eco-friendly polyoxometalate was investigated in the synthesis of gold nanoparticles and decoration of titanium dioxide with gold nanoparticles. Gold nanoparticles and nanocomposites were characterized by TEM, XRD, UV, and FTIR. TEM images showed that the gold nanoparticles have tubular and spherical shapes and particle size ranges from 10 to 25 nm. For gold-decorated titanium dioxide/Preyssler, a comparison between pure and amine-modified titanium dioxide showed higher loading of gold nanoparticles on amine-functionalized titanium dioxide. The performance of CsP5 was compared with its pure acid (HP5). Our findings showed that CsP5, as a catalytic linker to bind onto titanium dioxide surface for reducing gold nanoparticles, renders decoration better than HP5 in both pure and modified titanium dioxide. In addition, efficiency of the photocatalytic bleaching of malachite green by the synthesized nanocomposites was found to be excellent. |
| format | Article |
| id | doaj-art-704eae10a7004b928c4be19167b4911b |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-704eae10a7004b928c4be19167b4911b2025-02-03T05:44:44ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/507329507329Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite GreenFatemeh Farrash Bamoharram0Afsaneh Moghadam Jafari1Ali Ayati2Bahareh Tanhaei3Mika Sillanpää4Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad 91735-413, IranDepartment of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad 91735-413, IranLaboratory of Green Chemistry, Department of Chemistry, Lappeenranta University of Technology, Sammonkatu 12, 50100 Mikkeli, FinlandLaboratory of Green Chemistry, Department of Chemistry, Lappeenranta University of Technology, Sammonkatu 12, 50100 Mikkeli, FinlandLaboratory of Green Chemistry, Department of Chemistry, Lappeenranta University of Technology, Sammonkatu 12, 50100 Mikkeli, FinlandFor the first time, capability of the cesium salt of sodium 30-tungstopentaphosphate, the so-called Preyssler’s anion (CsP5), as a green and eco-friendly polyoxometalate was investigated in the synthesis of gold nanoparticles and decoration of titanium dioxide with gold nanoparticles. Gold nanoparticles and nanocomposites were characterized by TEM, XRD, UV, and FTIR. TEM images showed that the gold nanoparticles have tubular and spherical shapes and particle size ranges from 10 to 25 nm. For gold-decorated titanium dioxide/Preyssler, a comparison between pure and amine-modified titanium dioxide showed higher loading of gold nanoparticles on amine-functionalized titanium dioxide. The performance of CsP5 was compared with its pure acid (HP5). Our findings showed that CsP5, as a catalytic linker to bind onto titanium dioxide surface for reducing gold nanoparticles, renders decoration better than HP5 in both pure and modified titanium dioxide. In addition, efficiency of the photocatalytic bleaching of malachite green by the synthesized nanocomposites was found to be excellent.http://dx.doi.org/10.1155/2013/507329 |
| spellingShingle | Fatemeh Farrash Bamoharram Afsaneh Moghadam Jafari Ali Ayati Bahareh Tanhaei Mika Sillanpää Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green International Journal of Photoenergy |
| title | Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green |
| title_full | Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green |
| title_fullStr | Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green |
| title_full_unstemmed | Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green |
| title_short | Cesium Salt of Sodium 30-Tungstopentaphosphate: An Effective and Green Polyoxometalate for Synthesis of Gold Nanoparticles along with Decoration of Titanium Dioxide with Gold Nanoparticles for Bleaching of Malachite Green |
| title_sort | cesium salt of sodium 30 tungstopentaphosphate an effective and green polyoxometalate for synthesis of gold nanoparticles along with decoration of titanium dioxide with gold nanoparticles for bleaching of malachite green |
| url | http://dx.doi.org/10.1155/2013/507329 |
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