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Mechanism of NO Photocatalytic Oxidationon g-C3N4 Was Changed by Pd-QDs Modification
Li, YH (Li, Yuhan); Yang, LP (Yang, Liping); Dong, GH (Dong, Guohui); Ho, WK (Ho, Wingkei)
2016
Source PublicationMOLECULES
ISSN1420-3049
Volume21Issue:1Pages:1-10
Abstract

Quantum dot (QD) sensitization can increase the light absorption and electronic transmission of photocatalysts. However, limited studies have been conducted on the photocatalytic activity of photocatalysts after modification by noble metal QDs. In this study, we developed a simple method for fabricating Pd-QD-modified g-C3N4. Results showed that the modification of Pd-QDs can improve the NO photocatalytic oxidation activity of g-C3N4. Moreover, Pd-QD modification changed the NO oxidation mechanism from the synergistic action of h(+) and O-2(-) to the single action of OH. We found that the main reason for the mechanism change was that Pd-QD modification changed the molecular oxygen activation pathway from single-electron reduction to two-electron reduction. This study can not only develop a novel strategy for modifying Pd-QDs on the surface of photocatalysts, but also provides insight into the relationship between Pd-QD modification and the NO photocatalytic oxidation activity of semiconductor photocatalysts.

KeywordQuantum Dot G-c3n4 Photocatalytic Oxidation No
DOI10.3390/molecules21010036
Indexed BySCI
WOS IDWOS:000369485600027
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4704
Collection环境科学与技术研究室
Affiliation1.Hong Kong Inst Educ, Dept Sci & Environm Studies, Tai Po, Hong Kong, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Li, YH ,Yang, LP ,Dong, GH ,et al. Mechanism of NO Photocatalytic Oxidationon g-C3N4 Was Changed by Pd-QDs Modification[J]. MOLECULES,2016,21(1):1-10.
APA Li, YH ,Yang, LP ,Dong, GH ,&Ho, WK .(2016).Mechanism of NO Photocatalytic Oxidationon g-C3N4 Was Changed by Pd-QDs Modification.MOLECULES,21(1),1-10.
MLA Li, YH ,et al."Mechanism of NO Photocatalytic Oxidationon g-C3N4 Was Changed by Pd-QDs Modification".MOLECULES 21.1(2016):1-10.
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