Preparation, Characterization and Photocatalytic Property of Ag-loaded TiO2 Powders Using Photodeposition Method
The Ag particles were photodeposited on TiO2 powder surface. The X-ray diffraction （XRD）, Raman spectroscopy, transmittance electron microscopy （TEM）, UV-vis diffused reflection spectroscopy （DRS）, X-ray photoelectron spectroscopy （XPS）, and photoluminescence （PL） spectrophotoscopy were used to inve...
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| Veröffentlicht in: | Journal of Wuhan University of Technology. Materials science edition 2009-04, Vol.24 (2), p.258-263 |
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| creator | Wen, Liping Liu, Baoshun Liu, Chao Zhao, Xiujian |
| description | The Ag particles were photodeposited on TiO2 powder surface. The X-ray diffraction （XRD）, Raman spectroscopy, transmittance electron microscopy （TEM）, UV-vis diffused reflection spectroscopy （DRS）, X-ray photoelectron spectroscopy （XPS）, and photoluminescence （PL） spectrophotoscopy were used to investigate the structure and morphologies of the samples. It is found that the loaded Ag particles have no effect on the XRD patterns, and the Raman scattering becomes much stronger due to the surface Raman enhancing effect. The TEM images show that the TiO2 grains are in the shape of short sticks, and the spherical Ag particles with hexagonal structure are adhered to the TiO2 grain surface tightly. XPS result shows that the loaded Ag particles can not affect the chemical states of Ti and O, and they are mainly in the form of metal Ag. A wide plasmon absorption appears on the UV-vis spectra after Ag photodeposition. The loaded Ag further greatly decreases the PL intensity, which partly indicates the electron transfer from TiO2 to Ag. The photocatalytic activities firstly increase with the content of loaded Ag, and then sharply decrease. Finally, the photocatalytic mechanism related to Ag-loaded TiO2 powders was discussed in detail. |
| doi_str_mv | 10.1007/s11595-009-2258-2 |
| format | Article |
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The X-ray diffraction （XRD）, Raman spectroscopy, transmittance electron microscopy （TEM）, UV-vis diffused reflection spectroscopy （DRS）, X-ray photoelectron spectroscopy （XPS）, and photoluminescence （PL） spectrophotoscopy were used to investigate the structure and morphologies of the samples. It is found that the loaded Ag particles have no effect on the XRD patterns, and the Raman scattering becomes much stronger due to the surface Raman enhancing effect. The TEM images show that the TiO2 grains are in the shape of short sticks, and the spherical Ag particles with hexagonal structure are adhered to the TiO2 grain surface tightly. XPS result shows that the loaded Ag particles can not affect the chemical states of Ti and O, and they are mainly in the form of metal Ag. A wide plasmon absorption appears on the UV-vis spectra after Ag photodeposition. The loaded Ag further greatly decreases the PL intensity, which partly indicates the electron transfer from TiO2 to Ag. The photocatalytic activities firstly increase with the content of loaded Ag, and then sharply decrease. Finally, the photocatalytic mechanism related to Ag-loaded TiO2 powders was discussed in detail.</description><identifier>ISSN: 1000-2413</identifier><identifier>EISSN: 1993-0437</identifier><identifier>DOI: 10.1007/s11595-009-2258-2</identifier><language>eng</language><publisher>Heidelberg: Wuhan University of Technology</publisher><subject>Chemistry and Materials Science ; Materials Science ; Spectrum analysis ; X-rays ; X射线光电子能谱 ; X射线衍射图 ; 二氧化钛粉末 ; 光催化性能 ; 透射电子显微镜</subject><ispartof>Journal of Wuhan University of Technology. 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Materials science edition</title><addtitle>J. Wuhan Univ. Technol.-Mat. Sci. Edit</addtitle><addtitle>Journal of Wuhan University of Technology. Materials Science Edition</addtitle><description>The Ag particles were photodeposited on TiO2 powder surface. The X-ray diffraction （XRD）, Raman spectroscopy, transmittance electron microscopy （TEM）, UV-vis diffused reflection spectroscopy （DRS）, X-ray photoelectron spectroscopy （XPS）, and photoluminescence （PL） spectrophotoscopy were used to investigate the structure and morphologies of the samples. It is found that the loaded Ag particles have no effect on the XRD patterns, and the Raman scattering becomes much stronger due to the surface Raman enhancing effect. The TEM images show that the TiO2 grains are in the shape of short sticks, and the spherical Ag particles with hexagonal structure are adhered to the TiO2 grain surface tightly. XPS result shows that the loaded Ag particles can not affect the chemical states of Ti and O, and they are mainly in the form of metal Ag. A wide plasmon absorption appears on the UV-vis spectra after Ag photodeposition. The loaded Ag further greatly decreases the PL intensity, which partly indicates the electron transfer from TiO2 to Ag. The photocatalytic activities firstly increase with the content of loaded Ag, and then sharply decrease. Finally, the photocatalytic mechanism related to Ag-loaded TiO2 powders was discussed in detail.</description><subject>Chemistry and Materials Science</subject><subject>Materials Science</subject><subject>Spectrum analysis</subject><subject>X-rays</subject><subject>X射线光电子能谱</subject><subject>X射线衍射图</subject><subject>二氧化钛粉末</subject><subject>光催化性能</subject><subject>透射电子显微镜</subject><issn>1000-2413</issn><issn>1993-0437</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kD9PwzAUxCMEEqXwAdgsWDE823Fcj1XFP6moGWC2nNhuAyVObVeofHrShoGJ6Z2e7ncnXZZdErglAOIuEsIlxwASU8onmB5lIyIlw5AzcdxrAMA0J-w0O4vxHSAHVhSjrCuD7XTQqfHtDZqtelknG5rvwwfp1qBy5ZOvddLrXWpqVAbf2ZB2yDs0XeK118Ya9NosKCr9l7EhorfYtMuBM7bzsTlkvdi08uY8O3F6He3F7x1nbw_3r7MnPF88Ps-mc1yznCVcOS0qcMLlUDvDBa0qZ6TUlTE5Ba25qbnWhhotCu5gIqSsrGW0EpwBLYCNs-shtwt-s7UxqXe_DW1fqQghjNGcFnnvIoOrDj7GYJ3qQvOpw04RUPth1TCs6odV-2EV7Rk6MLH3tksb_iT_A139Fq18u9z0nKp0_eGatVUMCCdSFOwHeF-IzQ</recordid><startdate>20090401</startdate><enddate>20090401</enddate><creator>Wen, Liping</creator><creator>Liu, Baoshun</creator><creator>Liu, Chao</creator><creator>Zhao, Xiujian</creator><general>Wuhan University of Technology</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W94</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8AO</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20090401</creationdate><title>Preparation, Characterization and Photocatalytic Property of Ag-loaded TiO2 Powders Using Photodeposition Method</title><author>Wen, Liping ; Liu, Baoshun ; Liu, Chao ; Zhao, Xiujian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-bfa7b0f7f40cfd572bbfd99abdd420aa5dc5aad2da765f08799bee32b75302603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Chemistry and Materials Science</topic><topic>Materials Science</topic><topic>Spectrum analysis</topic><topic>X-rays</topic><topic>X射线光电子能谱</topic><topic>X射线衍射图</topic><topic>二氧化钛粉末</topic><topic>光催化性能</topic><topic>透射电子显微镜</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen, Liping</creatorcontrib><creatorcontrib>Liu, Baoshun</creatorcontrib><creatorcontrib>Liu, Chao</creatorcontrib><creatorcontrib>Zhao, Xiujian</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-自然科学</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>ProQuest Pharma Collection</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of Wuhan University of Technology. 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| subjects | Chemistry and Materials Science Materials Science Spectrum analysis X-rays X射线光电子能谱 X射线衍射图 二氧化钛粉末 光催化性能 透射电子显微镜 |
| title | Preparation, Characterization and Photocatalytic Property of Ag-loaded TiO2 Powders Using Photodeposition Method |
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