Simultaneously Utilizing Excited Holes and Electrons for Piezoelectric-Enhanced Photoproduction of H2O2 from S-Scheme 2D S-Doped VOx/g-C3N4 Nanostructures DOI

Huynh Phuoc Toan,

Nguyen Duc Viet,

Pham Duc Minh Phan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(22), P. 29421 - 29438

Published: May 22, 2024

2D/2D step-scheme (S-scheme) piezo-photocatalysts for the production of fine chemicals, such as hydrogen peroxide (H2O2), have attracted significant attention global scientists owing to efficiency in utilizing surface piezoelectric effects from 2D materials overcome rapid charge recombination photocatalytic processes. In this research, we reported fabrication S-doped VOx deposited on g-C3N4 produce H2O2 via piezo-photocatalytic process with high yields at 20.19 mmol g–1 h–1, which was 1.75 and 4.87 times higher than that solely piezo-catalytic generation. The finding pointed out adding sulfur (S) can help improve catalytic outcomes by modifying electronic properties pristine VOx. addition, when coupled g-C3N4, presence S limits formation graphene VOx/g-C3N4 composites, causing shielding pushing cascade reactions toward water generation materials. Besides, research also sheds light transport between S-VOx under irradiation how composites work trigger H2O2. composite systems enhances transfer two semiconductors strengthening internal electric fields (IEF) drive electrons moving one direction, demonstrated density functional theory (DFT) calculations. Moreover, significantly relies reduction oxygen generate oxygenic radical species sites. Meanwhile, provides oxidative sites oxidize molecules directly or indirectly O2, will further participate final products. This study confirms validation S-scheme piezo-photocatalysts, thus encouraging developing heterojunction efficiency, be used practical conditions.

Language: Английский

Exploring photogenerated charge carrier transfer in semiconductor/metal junctions using Kelvin probe force microscopy DOI
Chuanbiao Bie,

Zheng Meng,

Bowen He

et al.

Journal of Material Science and Technology, Journal Year: 2023, Volume and Issue: 173, P. 11 - 19

Published: Aug. 23, 2023

Language: Английский

Citations

24
S-Scheme Heterostructured CdS/g-C3N4 Nanocatalysts for Piezo-Photocatalytic Synthesis of H2O2 DOI

Pham Duc Minh Phan,

Nguyen Duc Viet, Nguyen Hoai Anh

et al.

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(18), P. 16702 - 16715

Published: Sept. 6, 2023

Sustainability in catalysis is increasingly becoming the primary target academic and industrial studies. Regarding material perspective, designing heterojunction nanocatalysts to produce small molecules, such as hydrogen peroxide (H2O2), has been an attractive research theme recent decades. Nonetheless, most reported materials suffer from a complicated synthetic process with various steps using unbenign solvents, hindering practical applications on scale. This study proposed facile one-step way fabricate heterostructured CdS/g-C3N4 H2O2 water oxygen under light ultrasound irradiation. The results showed that formation of mainly relies radical species. Oxygen initially converted into superoxide via excited electrons CdS, followed by singlet oxidation g-C3N4 sites. Interestingly, inert atmosphere associated situ evolution due suitable electronic band position drive multioxidation reactions. Charge transfer characterizations illustrate S-scheme mechanism catalytic process, giving better understanding charge transportation phenomenon, thus providing critical pathway developing for easier catalyst preparation operation processes.

Language: Английский

Citations

23
Recent advancements in graphitic carbon nitride based direct Z- and S-scheme heterostructures for photocatalytic H2O2 production DOI Creative Commons
Subrat Kumar Sahoo,

Lopamudra Acharya,

Lijarani Biswal

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(16), P. 4914 - 4973

Published: Jan. 1, 2024

This review summarizes advancements in g-C 3 N 4 -based direct Z and S-scheme heterostructures for solar H 2 O synthesis, exploring advanced characterization methods to verify the charge transfer mechanism.

Language: Английский

Citations

13
Bandgap engineering of novel Cu-vanadate/g-C3N4 hierarchical nanoflowers for enhanced photodegradation and excellent biosensing capability DOI
Muhammad Danish Khan, Masood ul Hassan Farooq,

Iqra Fareed

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 997, P. 174885 - 174885

Published: May 18, 2024

Language: Английский

Citations

12
Simultaneously Utilizing Excited Holes and Electrons for Piezoelectric-Enhanced Photoproduction of H2O2 from S-Scheme 2D S-Doped VOx/g-C3N4 Nanostructures DOI

Huynh Phuoc Toan,

Nguyen Duc Viet,

Pham Duc Minh Phan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(22), P. 29421 - 29438

Published: May 22, 2024

2D/2D step-scheme (S-scheme) piezo-photocatalysts for the production of fine chemicals, such as hydrogen peroxide (H2O2), have attracted significant attention global scientists owing to efficiency in utilizing surface piezoelectric effects from 2D materials overcome rapid charge recombination photocatalytic processes. In this research, we reported fabrication S-doped VOx deposited on g-C3N4 produce H2O2 via piezo-photocatalytic process with high yields at 20.19 mmol g–1 h–1, which was 1.75 and 4.87 times higher than that solely piezo-catalytic generation. The finding pointed out adding sulfur (S) can help improve catalytic outcomes by modifying electronic properties pristine VOx. addition, when coupled g-C3N4, presence S limits formation graphene VOx/g-C3N4 composites, causing shielding pushing cascade reactions toward water generation materials. Besides, research also sheds light transport between S-VOx under irradiation how composites work trigger H2O2. composite systems enhances transfer two semiconductors strengthening internal electric fields (IEF) drive electrons moving one direction, demonstrated density functional theory (DFT) calculations. Moreover, significantly relies reduction oxygen generate oxygenic radical species sites. Meanwhile, provides oxidative sites oxidize molecules directly or indirectly O2, will further participate final products. This study confirms validation S-scheme piezo-photocatalysts, thus encouraging developing heterojunction efficiency, be used practical conditions.

Language: Английский

Citations

12