Controllable Synthesis of CuPc/N-rich Doped (001) TiO2 S-scheme Nanosheet Heterojunctions for Efficiently Wide-Visible Light-Driven CO2 Reduction | Sciact - CRIS-system of Boreskov Institute of Catalysis

Controllable Synthesis of CuPc/N-rich Doped (001) TiO2 S-scheme Nanosheet Heterojunctions for Efficiently Wide-Visible Light-Driven CO2 Reduction Full article

Journal

Applied Surface Science
ISSN: 0169-4332

Output data

Year: 2023, Volume: 623, Article number : 157066, Pages count : 9 DOI: 10.1016/j.apsusc.2023.157066

Tags

N-rich doped TiO2; copper phthalocyanine modification; S-scheme charge transfer; visible-light photocatalysis; CO2 conversion

Authors

Wu Hongjun ¹ , Bian Ji ² , Zhang Ziqing ² , Zhao Zhenlong ² , Xu Shuai ² , Li Zhijun ² , Jiang Naiyuan ¹ , Kozlova Ekaterina ³ , Hua Xiuyi ¹ , Jing Liqiang ^1,2

Affiliations

1	Key Lab of Groundwater Resources and Environment of Ministry of Education, Key Lab of Water Resources and Aquatic Environment of Jilin Province, College of New Energy and Environment, Jilin University, Changchun 130012, People’s Republic of China
2	Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, International Joint Research Center and Lab for Catalytic Technology, Heilongjiang University, Harbin 150080, P. R. China
3	Federal Research Center Boreskov Institute of Catalysis, Novosibirsk 630090, Russian Federation

Funding (4)

1	National Natural Science Foundation of China	U2102211
2	National Natural Science Foundation of China	22105066
3	National Natural Science Foundation of China	42077343
4	Natural Science Foundation of Heilongjiang Province	YQ2022B009

Inspired by natural photosynthesis, the rational design of efficient S-scheme heterojunctions holds promises for CO2 conversion by utilizing solar light. Herein, nitrogen-rich doped 001-exposed anatase nanosheets (NPT) have been designed and fabricated by post-treatment with NH3 at a high temperature of 600 °C to phosphate modified TiO2 firstly, and then controllably coupled with copper phthalocyanine (CuPc) via a hydroxyl-induced assembly process to construct a wide-visible-light responsive heterojunction towards CO2 conversion. The optimized CuPc/NPT heterojunction achieves a high production rate of CO (∼5 μmol/g/h) under visible light irradiation, with ∼9-fold enhancement compared with generally N-doped TiO2. Based on the experimental results mainly from photocurrent action spectra, electron paramagnetic resonance measurements, electrochemical reduction curves and in-situ diffuse reflectance infrared Fourier transform spectra, it is confirmed that the exceptional photoactivity is attributed to the N-rich doping for increasing visible-light absorption of TiO2, the effective S-scheme charge transfer from the closely-contacted CuPc/NPT heterojunction with wide visible-light absorption, and subsequently to the electron transfer from the Pc ligand to central metal Cu2+ with good catalytic function for CO2 reduction. This work provides feasible routes for the design and preparation of TiO2-based photocatalysts for solar-driven CO2 conversion.

Wu H. , Bian J. , Zhang Z. , Zhao Z. , Xu S. , Li Z. , Jiang N. , Kozlova E. , Hua X. , Jing L.
Controllable Synthesis of CuPc/N-rich Doped (001) TiO2 S-scheme Nanosheet Heterojunctions for Efficiently Wide-Visible Light-Driven CO2 Reduction
Applied Surface Science. 2023. V.623. 157066 :1-9. DOI: 10.1016/j.apsusc.2023.157066 WOS Scopus РИНЦ ANCANCAN OpenAlex

Submitted:	Feb 6, 2023
Accepted:	Mar 16, 2023
Published online:	Mar 21, 2023
Published print:	Jun 30, 2023

Web of science:	WOS:000964965400001
Scopus:	2-s2.0-85151056482
Elibrary:	54903582
Chemical Abstracts:	2023:647103
Chemical Abstracts (print):	2023:647103 \| 182:414638
OpenAlex:	W4328137046

DB	Citing
Scopus	25
Web of science	24
OpenAlex	18
Elibrary	13