Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production

Wu, Liting; Mi, Xuke; Wang, Shaopeng; Huang, Can; Zhang, Yu; Wang, Yong-Mei; Wang, Yong

doi:10.3390/nano13081318

Open AccessArticle

Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production

by

Liting Wu

^1,†,

Xuke Mi

^1,†,

Shaopeng Wang

^1,†,

Can Huang

¹,

Yu Zhang

²,

Yong-Mei Wang

^1,*

and

Yong Wang

^1,3,*

¹

School of Advanced Materials and Nanotechnology, Academy of Advanced Interdisciplinary Research, Xidian University, Xi’an 710126, China

²

Department of Physics, Shaanxi University of Science and Technology, Xi’an 710021, China

³

The State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, Xidian University, Xi’an 710126, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Nanomaterials 2023, 13(8), 1318; https://doi.org/10.3390/nano13081318

Submission received: 28 February 2023 / Revised: 5 April 2023 / Accepted: 7 April 2023 / Published: 9 April 2023

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Abstract

Atomically thin two-dimensional (2D) CN sheets have attracted extensive attention in the field of photocatalysis because of their shorter diffusion path of photogenerated carriers and abundant surface reaction sites than bulk CN. However, 2D CNs still exhibit poor visible-light photocatalytic activity because of a strong quantum size effect. Here, PCN-222/CNs vdWHs were successfully constructed using the electrostatic self-assembly method. The results showed that PCN-222/CNs vdWHs with 1 wt.% PCN-222 enhanced the absorption range of CNs from 420 to 438 nm, which improved the absorption capacity of visible light. Additionally, the hydrogen production rate of 1 wt.% PCN-222/CNs is four times that of the pristine 2D CNs. This study provides a simple and effective strategy for 2D CN-based photocatalysts to promote visible light absorption.

Keywords: PCN-222; two-dimensional carbon nitride; van der Waals heterostructures; hydrogen production

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MDPI and ACS Style

Wu, L.; Mi, X.; Wang, S.; Huang, C.; Zhang, Y.; Wang, Y.-M.; Wang, Y. Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production. Nanomaterials 2023, 13, 1318. https://doi.org/10.3390/nano13081318

AMA Style

Wu L, Mi X, Wang S, Huang C, Zhang Y, Wang Y-M, Wang Y. Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production. Nanomaterials. 2023; 13(8):1318. https://doi.org/10.3390/nano13081318

Chicago/Turabian Style

Wu, Liting, Xuke Mi, Shaopeng Wang, Can Huang, Yu Zhang, Yong-Mei Wang, and Yong Wang. 2023. "Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production" Nanomaterials 13, no. 8: 1318. https://doi.org/10.3390/nano13081318

APA Style

Wu, L., Mi, X., Wang, S., Huang, C., Zhang, Y., Wang, Y.-M., & Wang, Y. (2023). Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production. Nanomaterials, 13(8), 1318. https://doi.org/10.3390/nano13081318

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Construction of PCN-222 and Atomically Thin 2D CNs Van Der Waals Heterojunction for Enhanced Visible Light Photocatalytic Hydrogen Production

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