Praseodymium Oxide Improving the Activity of a Silver-Loaded Calcium Titanate Photocatalyst for Carbon Dioxide Reduction with Water

Hongxuan Qiu; Akihiko Anzai; Tayyebeh Soltani; Akira Yamamoto; Eri Fudo; Atsuhiro Tanaka; Hiroshi Kominami; Hisao Yoshida

doi:10.1021/acsaem.3c00476

Praseodymium Oxide Improving the Activity of a Silver-Loaded Calcium Titanate Photocatalyst for Carbon Dioxide Reduction with Water

Hongxuan Qiu, Akihiko Anzai, Tayyebeh Soltani, Akira Yamamoto, Eri Fudo, Atsuhiro Tanaka, Hiroshi Kominami, Hisao Yoshida

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

4 Citations (Scopus)

Abstract

Heterogeneous photocatalytic CO2 reduction with water has attracted great attention. Although the addition of Ag nanoparticles (NPs) as a cocatalyst on a semiconductor photocatalyst has been known to improve both the photocatalytic activity and reaction selectivity for CO2 reduction, the addition of Pr as Pr6O11 species on the surface of an Ag-loaded CaTiO3 (CTO) photocatalyst further improved the photocatalytic activity. The different calcination temperatures for the sample preparation changed the state of Pr species, and it strongly influenced the photocatalytic performance. The Pr6O11 species was found to be loaded between the CTO surface and Ag NPs on the Ag/Pr/CTO photocatalyst, proposing that it improves the electron migration from the CTO photocatalyst to Ag NPs via the Pr6O11 layer.

Original language	English
Pages (from-to)	5396-5406
Number of pages	11
Journal	ACS Applied Energy Materials
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/acsaem.3c00476
Publication status	Published - May 22 2023
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemical Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrochemistry
Materials Chemistry
Electrical and Electronic Engineering

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10.1021/acsaem.3c00476

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title = "Praseodymium Oxide Improving the Activity of a Silver-Loaded Calcium Titanate Photocatalyst for Carbon Dioxide Reduction with Water",

abstract = "Heterogeneous photocatalytic CO2 reduction with water has attracted great attention. Although the addition of Ag nanoparticles (NPs) as a cocatalyst on a semiconductor photocatalyst has been known to improve both the photocatalytic activity and reaction selectivity for CO2 reduction, the addition of Pr as Pr6O11 species on the surface of an Ag-loaded CaTiO3 (CTO) photocatalyst further improved the photocatalytic activity. The different calcination temperatures for the sample preparation changed the state of Pr species, and it strongly influenced the photocatalytic performance. The Pr6O11 species was found to be loaded between the CTO surface and Ag NPs on the Ag/Pr/CTO photocatalyst, proposing that it improves the electron migration from the CTO photocatalyst to Ag NPs via the Pr6O11 layer.",

keywords = "Ag cocatalyst, CO formation, PrO, calcium titanate photocatalyst, different calcination temperatures, photocatalytic COreduction",

author = "Hongxuan Qiu and Akihiko Anzai and Tayyebeh Soltani and Akira Yamamoto and Eri Fudo and Atsuhiro Tanaka and Hiroshi Kominami and Hisao Yoshida",

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year = "2023",

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doi = "10.1021/acsaem.3c00476",

language = "English",

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T1 - Praseodymium Oxide Improving the Activity of a Silver-Loaded Calcium Titanate Photocatalyst for Carbon Dioxide Reduction with Water

AU - Qiu, Hongxuan

AU - Anzai, Akihiko

AU - Soltani, Tayyebeh

AU - Yamamoto, Akira

AU - Fudo, Eri

AU - Tanaka, Atsuhiro

AU - Kominami, Hiroshi

AU - Yoshida, Hisao

PY - 2023/5/22

Y1 - 2023/5/22

N2 - Heterogeneous photocatalytic CO2 reduction with water has attracted great attention. Although the addition of Ag nanoparticles (NPs) as a cocatalyst on a semiconductor photocatalyst has been known to improve both the photocatalytic activity and reaction selectivity for CO2 reduction, the addition of Pr as Pr6O11 species on the surface of an Ag-loaded CaTiO3 (CTO) photocatalyst further improved the photocatalytic activity. The different calcination temperatures for the sample preparation changed the state of Pr species, and it strongly influenced the photocatalytic performance. The Pr6O11 species was found to be loaded between the CTO surface and Ag NPs on the Ag/Pr/CTO photocatalyst, proposing that it improves the electron migration from the CTO photocatalyst to Ag NPs via the Pr6O11 layer.

AB - Heterogeneous photocatalytic CO2 reduction with water has attracted great attention. Although the addition of Ag nanoparticles (NPs) as a cocatalyst on a semiconductor photocatalyst has been known to improve both the photocatalytic activity and reaction selectivity for CO2 reduction, the addition of Pr as Pr6O11 species on the surface of an Ag-loaded CaTiO3 (CTO) photocatalyst further improved the photocatalytic activity. The different calcination temperatures for the sample preparation changed the state of Pr species, and it strongly influenced the photocatalytic performance. The Pr6O11 species was found to be loaded between the CTO surface and Ag NPs on the Ag/Pr/CTO photocatalyst, proposing that it improves the electron migration from the CTO photocatalyst to Ag NPs via the Pr6O11 layer.

KW - Ag cocatalyst

KW - CO formation

KW - PrO

KW - calcium titanate photocatalyst

KW - different calcination temperatures

KW - photocatalytic COreduction

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U2 - 10.1021/acsaem.3c00476

DO - 10.1021/acsaem.3c00476

M3 - Article

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VL - 6

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JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 10

ER -

Praseodymium Oxide Improving the Activity of a Silver-Loaded Calcium Titanate Photocatalyst for Carbon Dioxide Reduction with Water

Abstract

All Science Journal Classification (ASJC) codes

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