Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts

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Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts. / Elsayed, Mohamed Hammad; Jayakumar, Jayachandran; Abdellah, Mohamed; Mansoure, Tharwat Hassan; Zheng, Kaibo; Elewa, Ahmed M.; Chang, Chih Li; Ting, Li Yu; Lin, Wei Cheng; Yu, Hsiao hua; Wang, Wen Hsin; Chung, Chih Chia; Chou, Ho Hsiu.

In: Applied Catalysis B: Environmental, Vol. 283, 119659, 04.2021.

Research output: Contribution to journalArticle

Harvard

Elsayed, MH, Jayakumar, J, Abdellah, M, Mansoure, TH, Zheng, K, Elewa, AM, Chang, CL, Ting, LY, Lin, WC, Yu, HH, Wang, WH, Chung, CC & Chou, HH 2021, 'Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts', Applied Catalysis B: Environmental, vol. 283, 119659. https://doi.org/10.1016/j.apcatb.2020.119659

APA

Elsayed, M. H., Jayakumar, J., Abdellah, M., Mansoure, T. H., Zheng, K., Elewa, A. M., Chang, C. L., Ting, L. Y., Lin, W. C., Yu, H. H., Wang, W. H., Chung, C. C., & Chou, H. H. (2021). Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts. Applied Catalysis B: Environmental, 283, [119659]. https://doi.org/10.1016/j.apcatb.2020.119659

CBE

Elsayed MH, Jayakumar J, Abdellah M, Mansoure TH, Zheng K, Elewa AM, Chang CL, Ting LY, Lin WC, Yu HH, Wang WH, Chung CC, Chou HH. 2021. Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts. Applied Catalysis B: Environmental. 283:Article 119659. https://doi.org/10.1016/j.apcatb.2020.119659

MLA

Vancouver

Author

Elsayed, Mohamed Hammad ; Jayakumar, Jayachandran ; Abdellah, Mohamed ; Mansoure, Tharwat Hassan ; Zheng, Kaibo ; Elewa, Ahmed M. ; Chang, Chih Li ; Ting, Li Yu ; Lin, Wei Cheng ; Yu, Hsiao hua ; Wang, Wen Hsin ; Chung, Chih Chia ; Chou, Ho Hsiu. / Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts. In: Applied Catalysis B: Environmental. 2021 ; Vol. 283.

RIS

TY - JOUR

T1 - Visible-light-driven hydrogen evolution using nitrogen-doped carbon quantum dot-implanted polymer dots as metal-free photocatalysts

AU - Elsayed, Mohamed Hammad

AU - Jayakumar, Jayachandran

AU - Abdellah, Mohamed

AU - Mansoure, Tharwat Hassan

AU - Zheng, Kaibo

AU - Elewa, Ahmed M.

AU - Chang, Chih Li

AU - Ting, Li Yu

AU - Lin, Wei Cheng

AU - Yu, Hsiao hua

AU - Wang, Wen Hsin

AU - Chung, Chih Chia

AU - Chou, Ho Hsiu

PY - 2021/4

Y1 - 2021/4

N2 - Given the photocatalytic properties of semiconducting polymers and carbon quantum dots (CQDs), we report a new structure for a metal-free photocatalytic system with a promising efficiency for hydrogen production through the combination of an organic semiconducting polymer (PFTBTA) and N-doped carbon quantum dots (NCQDs) covered by PS-PEGCOOH to produce heterostructured photocatalysts in the form of polymer dots (Pdots). This design could provide strong interactions between the two materials owing to the space confinement effect in nanometer-sized Pdots. Small particle size NCQDs are easy to insert inside the Pdot, which leads to an increase in the stability of the Pdot structure and enhances the hydrogen evolution rate by approximately 5-fold over that of pure PFTBTA Pdots. The photophysics and the mechanism behind the catalytic activity of our design are investigated by transient absorption measurement, demonstrating the role of NCQDs to enhance the charge separation and the photocatalytic efficiency of the PFTBTA Pdot.

AB - Given the photocatalytic properties of semiconducting polymers and carbon quantum dots (CQDs), we report a new structure for a metal-free photocatalytic system with a promising efficiency for hydrogen production through the combination of an organic semiconducting polymer (PFTBTA) and N-doped carbon quantum dots (NCQDs) covered by PS-PEGCOOH to produce heterostructured photocatalysts in the form of polymer dots (Pdots). This design could provide strong interactions between the two materials owing to the space confinement effect in nanometer-sized Pdots. Small particle size NCQDs are easy to insert inside the Pdot, which leads to an increase in the stability of the Pdot structure and enhances the hydrogen evolution rate by approximately 5-fold over that of pure PFTBTA Pdots. The photophysics and the mechanism behind the catalytic activity of our design are investigated by transient absorption measurement, demonstrating the role of NCQDs to enhance the charge separation and the photocatalytic efficiency of the PFTBTA Pdot.

KW - Carbon quantum dot

KW - Hydrogen evolution

KW - Photocatalysts

KW - Polymer dots

KW - Visible-light

U2 - 10.1016/j.apcatb.2020.119659

DO - 10.1016/j.apcatb.2020.119659

M3 - Article

AN - SCOPUS:85096166504

VL - 283

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

M1 - 119659

ER -