<trans-title>NO Photo-oxidation and In-situ DRIFTS Studies on N-doped Bi2O2CO3/CdSe Quantum Dot Composite</trans-title>

Yang LIU; Shan YU; Kai-Wen ZHENG; Wei-Wei CHEN; Xing-An DONG; Fan DONG; Ying ZHOU

doi:10.15541/jim20180299

Journal of Inorganic Materials, Volume. 34, Issue 4, 425(2019)

NO Photo-oxidation and In-situ DRIFTS Studies on N-doped Bi₂O₂CO₃/CdSe Quantum Dot Composite

Yang LIU1... Shan YU1,*, Kai-Wen ZHENG1, Wei-Wei CHEN1, Xing-An DONG2, Fan DONG2 and Ying ZHOU1,* |Show fewer author(s)

¹The Center of New Energy Materials and Technology, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China

²Chongqing Key Laboratory Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China

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Figures & Tables(12)

1. Schematic diagram of photo-oxidation NO reaction equipment

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2. Photocatalytic removal ratio of NO (a) and generation of NO₂ (b) in the presence of N-BOC and N-BOC/CdSe QDs under visible light irradiation (λ>420 nm), and photocatalytic recycling tests on N-BOC/CdSe QDs (1%) under visible light (c) and UV-Visible light (d) irradiation

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3. XRD patterns of N-BOC and N-BOC/CdSe QDs(1%) and their corresponding standard PDF card

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4. (a)TEM and (b)HRTEM images of N-BOC/CdSe QDs(1%)

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5. High-resolution XPS spectra of Bi 4f (a), O 1s (b), C 1s (c), and valance band (d) of N-BOC and N-BOC/CdSe QDs (1%) sample

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6. UV-Vis DRS of N-BOC and N-BOC/CdSe QDs

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7. Photoluminescence spectra of N-BOC and N-BOC/CdSe QDs (1%)

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8. In situ DRIFTS of NO adsorption on N-BOC/CdSe QDs (1%) before (a), during (b) and after (c) visible light illumination

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9. Proposed processes of NO adsorption and photocatalytic NO oxidation

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10. Schematic representation of the mechanism for photodegrading NO by N-BOC/CdSe QDs

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Table 1. Redox potentials of different active species
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Table 1. Redox potentials of different active species
Species Redox potential (NHE)
Potential/eV Ref.
O₂/•O₂^- -0.28 [30]
NO/NO₂ 0.94 [29]
NO/NO₃^- 1.03 [29]

Table 2. Assignments of the IR bands observed during NO adsorption and photocatalysis over N-BOC/CdSe QDs

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Table 2. Assignments of the IR bands observed during NO adsorption and photocatalysis over N-BOC/CdSe QDs

Wavenumber/cm^-1	Assignment	Ref.
935	Bidentate nitrite	[31]
949, 978	Monodentate nitrate	[32-35]
1002	Bridge nitrate	[32-35]
1024	Bidentate/monodentate nitrate	[8, 32-35]
1092, 1134	NO	[31]
1180	NO^-	[8,18]
1120	Bidentate nitrite	[18, 31]
1262	Monodentate nitrate	[18, 31]

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Yang LIU, Shan YU, Kai-Wen ZHENG, Wei-Wei CHEN, Xing-An DONG, Fan DONG, Ying ZHOU. NO Photo-oxidation and In-situ DRIFTS Studies on N-doped Bi₂O₂CO₃/CdSe Quantum Dot Composite[J]. Journal of Inorganic Materials, 2019, 34(4): 425

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