In-plane implanting carbon rings into carbon nitride to intrigue nonradical photodegradation

Yu Yao; Yantao Wang; Teng Lu; Jinqiang Zhang; Kunsheng Hu; Huayang Zhang; Tara Pukala; Yun Liu; Xiaoguang Duan; Shaobin Wang

doi:10.1016/j.apcatb.2023.123363

In-plane implanting carbon rings into carbon nitride to intrigue nonradical photodegradation

Yu Yao, Yantao Wang, Teng Lu, Jinqiang Zhang^*, Kunsheng Hu, Huayang Zhang, Tara Pukala, Yun Liu, Xiaoguang Duan, Shaobin Wang

^*Corresponding author for this work

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

39 Citations (Scopus)

Abstract

Photocatalysis has emerged as a prevailing and clean technology for water purification. In this work, we developed a facile approach for fabricating in-plane carbon/carbon nitride heterojunctions (CN-PDs) that induced 100 % photodegradation of naproxen under visible light irradiation in a nonradical manner. Experimental and simulation results collectively revealed that the incorporated carbon rings in carbon nitride (CN) significantly accelerate the charge dynamics of excitons, leading to a higher concentration of hot carriers. In addition, a lower intersystem crossing energy barrier was observed for the unique nanostructure compared to pristine CN, enabling an efficient energy-transfer-mediated oxygen activation to selectively generate singlet oxygen. An optimized composition of carbon rings (CN-PDs_0.1) enhanced the photodegradation of naproxen compared to CN. This study established the structure-activity relationships in selective photooxidation. The findings will benefit advanced design of high-performance nonmetal photocatalysts for organic wastewater treatment.

Original language	English
Article number	123363
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	342
DOIs	https://doi.org/10.1016/j.apcatb.2023.123363
Publication status	Published - Mar 2024

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@article{d746c91e902a48a9b6ceb6e34890c8ef,

title = "In-plane implanting carbon rings into carbon nitride to intrigue nonradical photodegradation",

abstract = "Photocatalysis has emerged as a prevailing and clean technology for water purification. In this work, we developed a facile approach for fabricating in-plane carbon/carbon nitride heterojunctions (CN-PDs) that induced 100 \% photodegradation of naproxen under visible light irradiation in a nonradical manner. Experimental and simulation results collectively revealed that the incorporated carbon rings in carbon nitride (CN) significantly accelerate the charge dynamics of excitons, leading to a higher concentration of hot carriers. In addition, a lower intersystem crossing energy barrier was observed for the unique nanostructure compared to pristine CN, enabling an efficient energy-transfer-mediated oxygen activation to selectively generate singlet oxygen. An optimized composition of carbon rings (CN-PDs0.1) enhanced the photodegradation of naproxen compared to CN. This study established the structure-activity relationships in selective photooxidation. The findings will benefit advanced design of high-performance nonmetal photocatalysts for organic wastewater treatment.",

keywords = "Carbon nitride, Energy transfer, In -plane heterojunction, Nonradical, Photodegradation",

author = "Yu Yao and Yantao Wang and Teng Lu and Jinqiang Zhang and Kunsheng Hu and Huayang Zhang and Tara Pukala and Yun Liu and Xiaoguang Duan and Shaobin Wang",

note = " {\textcopyright} 2023 The Authors",

year = "2024",

month = mar,

doi = "10.1016/j.apcatb.2023.123363",

language = "English",

volume = "342",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - In-plane implanting carbon rings into carbon nitride to intrigue nonradical photodegradation

AU - Yao, Yu

AU - Wang, Yantao

AU - Lu, Teng

AU - Zhang, Jinqiang

AU - Hu, Kunsheng

AU - Zhang, Huayang

AU - Pukala, Tara

AU - Liu, Yun

AU - Duan, Xiaoguang

AU - Wang, Shaobin

PY - 2024/3

Y1 - 2024/3

N2 - Photocatalysis has emerged as a prevailing and clean technology for water purification. In this work, we developed a facile approach for fabricating in-plane carbon/carbon nitride heterojunctions (CN-PDs) that induced 100 % photodegradation of naproxen under visible light irradiation in a nonradical manner. Experimental and simulation results collectively revealed that the incorporated carbon rings in carbon nitride (CN) significantly accelerate the charge dynamics of excitons, leading to a higher concentration of hot carriers. In addition, a lower intersystem crossing energy barrier was observed for the unique nanostructure compared to pristine CN, enabling an efficient energy-transfer-mediated oxygen activation to selectively generate singlet oxygen. An optimized composition of carbon rings (CN-PDs0.1) enhanced the photodegradation of naproxen compared to CN. This study established the structure-activity relationships in selective photooxidation. The findings will benefit advanced design of high-performance nonmetal photocatalysts for organic wastewater treatment.

AB - Photocatalysis has emerged as a prevailing and clean technology for water purification. In this work, we developed a facile approach for fabricating in-plane carbon/carbon nitride heterojunctions (CN-PDs) that induced 100 % photodegradation of naproxen under visible light irradiation in a nonradical manner. Experimental and simulation results collectively revealed that the incorporated carbon rings in carbon nitride (CN) significantly accelerate the charge dynamics of excitons, leading to a higher concentration of hot carriers. In addition, a lower intersystem crossing energy barrier was observed for the unique nanostructure compared to pristine CN, enabling an efficient energy-transfer-mediated oxygen activation to selectively generate singlet oxygen. An optimized composition of carbon rings (CN-PDs0.1) enhanced the photodegradation of naproxen compared to CN. This study established the structure-activity relationships in selective photooxidation. The findings will benefit advanced design of high-performance nonmetal photocatalysts for organic wastewater treatment.

KW - Carbon nitride

KW - Energy transfer

KW - In -plane heterojunction

KW - Nonradical

KW - Photodegradation

UR - https://www.scopus.com/pages/publications/85174359152

U2 - 10.1016/j.apcatb.2023.123363

DO - 10.1016/j.apcatb.2023.123363

M3 - Article

SN - 0926-3373

VL - 342

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

M1 - 123363

ER -

In-plane implanting carbon rings into carbon nitride to intrigue nonradical photodegradation

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