Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt
The rates of photocatalytic oxidation of gaseous formic acid, acetic acid, acetaldehyde and toluene over N-doped TiO2 (TiO2−xNx) loaded with Fe, Cu or Pt were determined under visible light irradiation (>410nm). It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancemen...
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| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2008-09, Vol.83 (1-2), p.56-62 |
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| container_title | Applied catalysis. B, Environmental |
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| creator | Morikawa, Takeshi Ohwaki, Takeshi Suzuki, Ken-ichi Moribe, Shinya Tero-Kubota, Shozo |
| description | The rates of photocatalytic oxidation of gaseous formic acid, acetic acid, acetaldehyde and toluene over N-doped TiO2 (TiO2−xNx) loaded with Fe, Cu or Pt were determined under visible light irradiation (>410nm). It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancement of acetaldehyde oxidation, and that Cu and Pt gave the highest rates of acetic acid and toluene oxidation, respectively. It was also confirmed that the rate of formic acid photooxidation was enhanced by factors of 5 and 22 on loading of Fe and Pt, respectively. The extremely high rate enhancement of formic acid oxidation over Pt–TiO2−xNx was found to be due to a combined effect of photocatalysis and thermal catalysis at room temperature facilitated by nanoscale (1–2nm) Pt. These results indicate several important points as to enhancement of the activity of TiO2−xNx modified with metallic species. |
| doi_str_mv | 10.1016/j.apcatb.2008.01.034 |
| format | Article |
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It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancement of acetaldehyde oxidation, and that Cu and Pt gave the highest rates of acetic acid and toluene oxidation, respectively. It was also confirmed that the rate of formic acid photooxidation was enhanced by factors of 5 and 22 on loading of Fe and Pt, respectively. The extremely high rate enhancement of formic acid oxidation over Pt–TiO2−xNx was found to be due to a combined effect of photocatalysis and thermal catalysis at room temperature facilitated by nanoscale (1–2nm) Pt. These results indicate several important points as to enhancement of the activity of TiO2−xNx modified with metallic species.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2008.01.034</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Acetaldehyde ; Acetic acid ; Catalysis ; Chemistry ; Copper ; Doping ; Exact sciences and technology ; Formic acid ; General and physical chemistry ; Iron ; Nitrogen ; Photochemistry ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics) ; Platinum ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; TiO2 ; Visible light</subject><ispartof>Applied catalysis. 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B, Environmental</title><description>The rates of photocatalytic oxidation of gaseous formic acid, acetic acid, acetaldehyde and toluene over N-doped TiO2 (TiO2−xNx) loaded with Fe, Cu or Pt were determined under visible light irradiation (>410nm). It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancement of acetaldehyde oxidation, and that Cu and Pt gave the highest rates of acetic acid and toluene oxidation, respectively. It was also confirmed that the rate of formic acid photooxidation was enhanced by factors of 5 and 22 on loading of Fe and Pt, respectively. The extremely high rate enhancement of formic acid oxidation over Pt–TiO2−xNx was found to be due to a combined effect of photocatalysis and thermal catalysis at room temperature facilitated by nanoscale (1–2nm) Pt. These results indicate several important points as to enhancement of the activity of TiO2−xNx modified with metallic species.</description><subject>Acetaldehyde</subject><subject>Acetic acid</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Copper</subject><subject>Doping</subject><subject>Exact sciences and technology</subject><subject>Formic acid</subject><subject>General and physical chemistry</subject><subject>Iron</subject><subject>Nitrogen</subject><subject>Photochemistry</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><subject>Platinum</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>TiO2</topic><topic>Visible light</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Morikawa, Takeshi</creatorcontrib><creatorcontrib>Ohwaki, Takeshi</creatorcontrib><creatorcontrib>Suzuki, Ken-ichi</creatorcontrib><creatorcontrib>Moribe, Shinya</creatorcontrib><creatorcontrib>Tero-Kubota, Shozo</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied catalysis. B, Environmental</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Morikawa, Takeshi</au><au>Ohwaki, Takeshi</au><au>Suzuki, Ken-ichi</au><au>Moribe, Shinya</au><au>Tero-Kubota, Shozo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt</atitle><jtitle>Applied catalysis. B, Environmental</jtitle><date>2008-09-01</date><risdate>2008</risdate><volume>83</volume><issue>1-2</issue><spage>56</spage><epage>62</epage><pages>56-62</pages><issn>0926-3373</issn><eissn>1873-3883</eissn><abstract>The rates of photocatalytic oxidation of gaseous formic acid, acetic acid, acetaldehyde and toluene over N-doped TiO2 (TiO2−xNx) loaded with Fe, Cu or Pt were determined under visible light irradiation (>410nm). It was found that the loading of Fe, Cu or Pt resulted in similar rates of enhancement of acetaldehyde oxidation, and that Cu and Pt gave the highest rates of acetic acid and toluene oxidation, respectively. It was also confirmed that the rate of formic acid photooxidation was enhanced by factors of 5 and 22 on loading of Fe and Pt, respectively. The extremely high rate enhancement of formic acid oxidation over Pt–TiO2−xNx was found to be due to a combined effect of photocatalysis and thermal catalysis at room temperature facilitated by nanoscale (1–2nm) Pt. These results indicate several important points as to enhancement of the activity of TiO2−xNx modified with metallic species.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcatb.2008.01.034</doi><tpages>7</tpages></addata></record> |
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| ispartof | Applied catalysis. B, Environmental, 2008-09, Vol.83 (1-2), p.56-62 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Acetaldehyde Acetic acid Catalysis Chemistry Copper Doping Exact sciences and technology Formic acid General and physical chemistry Iron Nitrogen Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Platinum Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry TiO2 Visible light |
| title | Visible-light-induced photocatalytic oxidation of carboxylic acids and aldehydes over N-doped TiO2 loaded with Fe, Cu or Pt |
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