Use of Mn doping to suppress defect sites in Ag                         3                         PO                         4: Applications in photocatalysis

Mohammad Afif; Uyi Sulaeman; Anung Riapanitra; Roy Andreas; Shu Yin

doi:10.1016/j.apsusc.2018.10.049

Use of Mn doping to suppress defect sites in Ag ₃ PO ₄: Applications in photocatalysis

Mohammad Afif, Uyi Sulaeman, Anung Riapanitra, Roy Andreas, Shu Yin

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

The highly active Mn-doped Ag ₃ PO ₄ photocatalyst was successfully synthesized under coprecipitation method using AgNO ₃ , Na ₂ HPO ₄ ·12H ₂ O, and MnSO ₄ ·H ₂ O, followed by annealing. The products were characterized using the SEM, XRD, DRS, XPS, and BET. The results showed that the Mn doping decreased the broad absorption in the visible region and increased the atomic ratio of O/Ag. The hydroxyl defects and oxygen vacancies can be suppressed by Mn doping and the photocatalytic activity under visible light irradiation could be improved. This excellent photocatalytic activity was caused by decreasing the recombination of electron and holes due to suppressing the defect sites in the surface of Ag ₃ PO ₄ .

Original language	English
Pages (from-to)	352-357
Number of pages	6
Journal	Applied Surface Science
Volume	466
DOIs	https://doi.org/10.1016/j.apsusc.2018.10.049
Publication status	Published - 2019 Feb 1

Keywords

Ag PO
Defect sites
Hydroxyl defect
Mn doping
Oxygen vacancy
Photocatalysis

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2018.10.049

Cite this

@article{78c1514ae9354fe8ba00953e1671dda5,

title = "Use of Mn doping to suppress defect sites in Ag 3 PO 4: Applications in photocatalysis",

abstract = " The highly active Mn-doped Ag 3 PO 4 photocatalyst was successfully synthesized under coprecipitation method using AgNO 3 , Na 2 HPO 4 ·12H 2 O, and MnSO 4 ·H 2 O, followed by annealing. The products were characterized using the SEM, XRD, DRS, XPS, and BET. The results showed that the Mn doping decreased the broad absorption in the visible region and increased the atomic ratio of O/Ag. The hydroxyl defects and oxygen vacancies can be suppressed by Mn doping and the photocatalytic activity under visible light irradiation could be improved. This excellent photocatalytic activity was caused by decreasing the recombination of electron and holes due to suppressing the defect sites in the surface of Ag 3 PO 4 . ",

keywords = "Ag PO, Defect sites, Hydroxyl defect, Mn doping, Oxygen vacancy, Photocatalysis",

author = "Mohammad Afif and Uyi Sulaeman and Anung Riapanitra and Roy Andreas and Shu Yin",

note = "Funding Information: This research was supported by the Ministry of Research, Technology and Higher Education of the Republic of Indonesia in the Scheme of Competency Grant, Contract Number: 059/SP2H/LT/DRPM/2018 . It was also partly supported by the JSPS KAKENHI Grant Number JP16H06439 (Grant-in-Aid for Scientific Research on Innovative Areas), the Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials, the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = feb,

day = "1",

doi = "10.1016/j.apsusc.2018.10.049",

language = "English",

volume = "466",

pages = "352--357",

journal = "Applied Surface Science",

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T1 - Use of Mn doping to suppress defect sites in Ag 3 PO 4

T2 - Applications in photocatalysis

AU - Afif, Mohammad

AU - Sulaeman, Uyi

AU - Riapanitra, Anung

AU - Andreas, Roy

AU - Yin, Shu

N1 - Funding Information: This research was supported by the Ministry of Research, Technology and Higher Education of the Republic of Indonesia in the Scheme of Competency Grant, Contract Number: 059/SP2H/LT/DRPM/2018 . It was also partly supported by the JSPS KAKENHI Grant Number JP16H06439 (Grant-in-Aid for Scientific Research on Innovative Areas), the Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials, the Cooperative Research Program of “Network Joint Research Center for Materials and Devices”. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The highly active Mn-doped Ag 3 PO 4 photocatalyst was successfully synthesized under coprecipitation method using AgNO 3 , Na 2 HPO 4 ·12H 2 O, and MnSO 4 ·H 2 O, followed by annealing. The products were characterized using the SEM, XRD, DRS, XPS, and BET. The results showed that the Mn doping decreased the broad absorption in the visible region and increased the atomic ratio of O/Ag. The hydroxyl defects and oxygen vacancies can be suppressed by Mn doping and the photocatalytic activity under visible light irradiation could be improved. This excellent photocatalytic activity was caused by decreasing the recombination of electron and holes due to suppressing the defect sites in the surface of Ag 3 PO 4 .

AB - The highly active Mn-doped Ag 3 PO 4 photocatalyst was successfully synthesized under coprecipitation method using AgNO 3 , Na 2 HPO 4 ·12H 2 O, and MnSO 4 ·H 2 O, followed by annealing. The products were characterized using the SEM, XRD, DRS, XPS, and BET. The results showed that the Mn doping decreased the broad absorption in the visible region and increased the atomic ratio of O/Ag. The hydroxyl defects and oxygen vacancies can be suppressed by Mn doping and the photocatalytic activity under visible light irradiation could be improved. This excellent photocatalytic activity was caused by decreasing the recombination of electron and holes due to suppressing the defect sites in the surface of Ag 3 PO 4 .

KW - Ag PO

KW - Defect sites

KW - Hydroxyl defect

KW - Mn doping

KW - Oxygen vacancy

KW - Photocatalysis

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