Alkali modified P25 with enhanced CO2 adsorption for CO2 photoreduction
To improve the CO2 adsorption on the photocatalyst, which is an essential step for CO2 photoreduction, solid solutions were fabricated using a facile calcination treatment at 900 °C. Using various alkalis, namely NaOH, Na2CO3, KOH, K2CO3, the resulted samples presented a much higher CO2 adsorption c...
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| Veröffentlicht in: | RSC advances 2020-07, Vol.10 (47), p.27989-27994 |
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| creator | Tan, Jeannie Z Y Gavrielides, Stelios Xu, Hao R Thompson, Warren A M Mercedes Maroto-Valer |
| description | To improve the CO2 adsorption on the photocatalyst, which is an essential step for CO2 photoreduction, solid solutions were fabricated using a facile calcination treatment at 900 °C. Using various alkalis, namely NaOH, Na2CO3, KOH, K2CO3, the resulted samples presented a much higher CO2 adsorption capacity, which was measured with the pulse injection of CO2 on the temperature programmed desorption workstation, compared to the pristine Evonik P25. As a result, all of the fabricated solid solutions produced higer yield of CO under UV light irradiation due to the increased basicity of the solid solutions even though they possessed only the rutile polymorph of TiO2. The highest CO2 adsorption capacity under UV irradiation was observed in the sample treated with NaOH, which contained the highest amount of isolated hydroxyls, as shown in the FTIR studies. |
| doi_str_mv | 10.1039/d0ra05010e |
| format | Article |
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Using various alkalis, namely NaOH, Na2CO3, KOH, K2CO3, the resulted samples presented a much higher CO2 adsorption capacity, which was measured with the pulse injection of CO2 on the temperature programmed desorption workstation, compared to the pristine Evonik P25. As a result, all of the fabricated solid solutions produced higer yield of CO under UV light irradiation due to the increased basicity of the solid solutions even though they possessed only the rutile polymorph of TiO2. 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The highest CO2 adsorption capacity under UV irradiation was observed in the sample treated with NaOH, which contained the highest amount of isolated hydroxyls, as shown in the FTIR studies.</description><subject>Adsorption</subject><subject>Alkalies</subject><subject>Basicity</subject><subject>Carbon dioxide</subject><subject>Chemistry</subject><subject>Light irradiation</subject><subject>Potassium carbonate</subject><subject>Sodium carbonate</subject><subject>Sodium hydroxide</subject><subject>Solid solutions</subject><subject>Titanium dioxide</subject><subject>Ultraviolet radiation</subject><subject>Workstations</subject><issn>2046-2069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNpdj01LxDAURYMgzjDOxl9QcOOm-pI0SbMRhkFHYWBc6Dpk2hebsW1q2ir-e-vHRu_mwXmXA5eQMwqXFLi-KiFaEEABj8icQSZTBlLPyLLvDzBFCsokPSEzLgTVlIo52azqF1v7pAmldx7L5IGJ5N0PVYJtZdtiIusdS2zZh9gNPrSJC_EbdVUYQsRyLL7wKTl2tu5x-XsX5On25nF9l253m_v1apt2VDBMGWY5aMEo5iW4Ap0AvReZEg4l5lgUFDlTDjTnWgNHl1uQdq8kk5pnrOALcv3j7cZ9g2WB7RBtbbroGxs_TLDe_P20vjLP4c1oEEIKPgkufgUxvI7YD6bxfYF1bVsMY2-YlBSUUjqbquf_qocwxnaaZ1jGATLKleKf6QlxBw</recordid><startdate>20200727</startdate><enddate>20200727</enddate><creator>Tan, Jeannie Z Y</creator><creator>Gavrielides, Stelios</creator><creator>Xu, Hao R</creator><creator>Thompson, Warren A</creator><creator>M Mercedes Maroto-Valer</creator><general>Royal Society of Chemistry</general><general>The Royal Society of Chemistry</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20200727</creationdate><title>Alkali modified P25 with enhanced CO2 adsorption for CO2 photoreduction</title><author>Tan, Jeannie Z Y ; Gavrielides, Stelios ; Xu, Hao R ; Thompson, Warren A ; M Mercedes Maroto-Valer</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p152e-2e4809521e8d0fcef509b5475fe6e8ecc1e327f09339903ef8a06ab76269342c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Adsorption</topic><topic>Alkalies</topic><topic>Basicity</topic><topic>Carbon dioxide</topic><topic>Chemistry</topic><topic>Light irradiation</topic><topic>Potassium carbonate</topic><topic>Sodium carbonate</topic><topic>Sodium hydroxide</topic><topic>Solid solutions</topic><topic>Titanium dioxide</topic><topic>Ultraviolet radiation</topic><topic>Workstations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tan, Jeannie Z Y</creatorcontrib><creatorcontrib>Gavrielides, Stelios</creatorcontrib><creatorcontrib>Xu, Hao R</creatorcontrib><creatorcontrib>Thompson, Warren A</creatorcontrib><creatorcontrib>M Mercedes Maroto-Valer</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>RSC advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tan, Jeannie Z Y</au><au>Gavrielides, Stelios</au><au>Xu, Hao R</au><au>Thompson, Warren A</au><au>M Mercedes Maroto-Valer</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alkali modified P25 with enhanced CO2 adsorption for CO2 photoreduction</atitle><jtitle>RSC advances</jtitle><date>2020-07-27</date><risdate>2020</risdate><volume>10</volume><issue>47</issue><spage>27989</spage><epage>27994</epage><pages>27989-27994</pages><eissn>2046-2069</eissn><abstract>To improve the CO2 adsorption on the photocatalyst, which is an essential step for CO2 photoreduction, solid solutions were fabricated using a facile calcination treatment at 900 °C. Using various alkalis, namely NaOH, Na2CO3, KOH, K2CO3, the resulted samples presented a much higher CO2 adsorption capacity, which was measured with the pulse injection of CO2 on the temperature programmed desorption workstation, compared to the pristine Evonik P25. As a result, all of the fabricated solid solutions produced higer yield of CO under UV light irradiation due to the increased basicity of the solid solutions even though they possessed only the rutile polymorph of TiO2. The highest CO2 adsorption capacity under UV irradiation was observed in the sample treated with NaOH, which contained the highest amount of isolated hydroxyls, as shown in the FTIR studies.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><pmid>35519115</pmid><doi>10.1039/d0ra05010e</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; PubMed Central Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central |
| subjects | Adsorption Alkalies Basicity Carbon dioxide Chemistry Light irradiation Potassium carbonate Sodium carbonate Sodium hydroxide Solid solutions Titanium dioxide Ultraviolet radiation Workstations |
| title | Alkali modified P25 with enhanced CO2 adsorption for CO2 photoreduction |
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