Co-sensitization of TiO2 electrode with Eosin Y dye and carbon dots for photoelectrochemical water splitting: The enhanced dye adsorption and the charge transfer route - 文章详情页

作者：

Sang, Lixia (Sang, Lixia.) (学者：桑丽霞) | Lei, Lei (Lei, Lei.) | Lin, Jia (Lin, Jia.) | Ge, Hao (Ge, Hao.)

收录：

EI Scopus SCIE

摘要：

According　to　a　stepwise　adsorption　approach,　TiO2　NT　photoanode　was　co-sensitized　with　Eosin　Y　and　carbon　dots　for　photoelectrochemical　water　splitting.　The　adsorption　amount　of　Eosin　Y　in　co-sensitized　samples　increases　due　to　the　presence　of　carbon　dots　regardless　of　co-sensitization　sequence.　The　absorbance　of　Eosin　Y/carbon　dots/TiO2　NT　in　visible　light　region　is　stronger　than　that　of　carbon　dots/Eosin　Y/TiO2　NT,　while　carbon　dots/Eosin　Y/TiO2　NT　exhibits　higher　photocurrent　density　and　hydrogen　production　rate.　Based　on　the　shortest　electron　transport　time,　the　electron　diffusion　coefficient　in　carbon　dots/Eosin　Y/TiO2　NT　electrode　is　up　to　14.94　x　10(-19)cm(2)s(-1).　A　favorable　energy　levels　alignment　dominates　in　carbon　dots/Eosin　Y/TiO2　NT,　which　can　further　account　for　enhancement　in　charge　transfer.　(C)　2017　Hydrogen　Energy　Publications　LLC.　Published　by　Elsevier　Ltd.　All　rights　reserved.

关键词：

Carbon dots Co-sensitization Eosin Y Photoelectrochemical water splitting TiO2

作者机构：

[ 1 ] [Sang, Lixia]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Key Lab Heat Transfer & Energy Conservat Beijing, Minist Educ,Dept Energy Sci & Engn,Coll Environm, Beijing 100124, Peoples R China
[ 2 ] [Lei, Lei]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Key Lab Heat Transfer & Energy Conservat Beijing, Minist Educ,Dept Energy Sci & Engn,Coll Environm, Beijing 100124, Peoples R China
[ 3 ] [Lin, Jia]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Key Lab Heat Transfer & Energy Conservat Beijing, Minist Educ,Dept Energy Sci & Engn,Coll Environm, Beijing 100124, Peoples R China
[ 4 ] [Ge, Hao]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Key Lab Heat Transfer & Energy Conservat Beijing, Minist Educ,Dept Energy Sci & Engn,Coll Environm, Beijing 100124, Peoples R China

通讯作者信息：

桑丽霞
[Sang, Lixia]Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Key Lab Heat Transfer & Energy Conservat Beijing, Minist Educ,Dept Energy Sci & Engn,Coll Environm, Beijing 100124, Peoples R China

电子邮件地址：

sanglixia@bjut.edu.cn

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