Effects of Nanosized Au on the Interface of Zinc Phthalocyanine/TiO2 for CO2 Photoreduction | Sciact - CRIS-system of Boreskov Institute of Catalysis

Effects of Nanosized Au on the Interface of Zinc Phthalocyanine/TiO2 for CO2 Photoreduction Full article

Journal

Chinese Chemical Letters
ISSN: 1001-8417

Output data

Year: 2025, Volume: 36, Number: 2, Article number : 109931, Pages count : 9 DOI: 10.1016/j.cclet.2024.109931

Tags

Supported MPc photocatalyst, Au nanoparticle, charge separation, CO2 photoreduction

Authors

Bai Linlu ¹ , Li Wensen ^1,2 , Chu Xiaoyu ^1,2 , Yin Haochun ¹ , Qu Yang ¹ , Kozlova Ekaterina ³ , Yang Zhao-Di ² , Jing Liqiang ¹

Affiliations

1	Department Key Laboratory of Functional Inorganic Materials Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, International Joint Research Center and Lab for Catalytic Technology, Harbin 150080, China
2	School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin 150080, China
3	Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russian Federation

Funding (4)

1	National Natural Science Foundation of China	U2102211
2	National Natural Science Foundation of China	22378101
3	Natural Science Foundation of Heilongjiang Province	2021-KYYWF-0004
4	Heilongjiang University	JCL202102

The interface modulation significantly affects the photocatalytic performances of supported metal phthalocyanines (MPc)-based systems. Herein, ZnPc was loaded on nanosized Au-modified TiO2 nanosheets (Au-T) to obtain wide-spectrum ZnPc/Au-T photocatalysts. Compared with large Au NP (8 nm)-mediated ZnPc/Au-T photocatalyst, ultrasmall Au NP (3 nm)-mediated one shows advantageous photoactivity, achieving 3- and 10-fold CO2 conversion rates compared with reference ZnPc/T and pristine TiO2 nanosheets, respectively. Employing monochromatic beam-assisted surface photovoltage and photocurrent action, etc., the introduction of ultrasmall Au NPs more effectively facilitates intrinsic interfacial charge transfer. Moreover, ZnPc molecules are found more dispersed with the existence of small Au NPs hence exposing abundant Zn2+ sites as the catalytic center for CO2 reduction. This work provides a feasible design strategy and renewed recognition for supported MPc-based photocatalyst systems.

Bai L. , Li W. , Chu X. , Yin H. , Qu Y. , Kozlova E. , Yang Z-D. , Jing L.
Effects of Nanosized Au on the Interface of Zinc Phthalocyanine/TiO2 for CO2 Photoreduction
Chinese Chemical Letters. 2025. V.36. N2. 109931 :1-9. DOI: 10.1016/j.cclet.2024.109931 Scopus OpenAlex

Submitted:	Dec 16, 2022
Accepted:	Apr 27, 2024
Published online:	Apr 29, 2024
Published print:	Jan 1, 2025

Scopus:	2-s2.0-85209591848
OpenAlex:	W4396217502

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