Abstract
Graphene (GR) has considered to be a promising material to build proficient graphene-doped composites photocatalyst with superior catalytic activities for wastewater treatment. During the past decade, different graphene-doped composites have been constructed and applied in numerous solar and photocatalyst fields. GR-based composites have a sufficient surface area with numerous photocatalytic sites for wastewater treatment applications. In the present study the effect of hetero-atoms Aluminum, Nitrogen, and Boron on bandgap engineering and tuning of electronic and optical properties of GR-doped-composites by density functional quantum computing calculation. Our computed results demonstrate that hetero-atoms-doped-GR composites having direct energy band (Eg) semiconductor nature with an increment from 0.0 to 1.75 eV by the inclusion of hetero-atoms in GR, maybe some extra strong sites are formed in p state into the lifting of the energy bandgap (Eg). An extensive investigation of optical conductivity illustrates that increment in peaks from 2.5 to 4.0. Due to hetero-atoms dopant the absorbance peaks are increased and moved toward higher energy absorption. Our findings reveal that as compared to pure, Al, N,B hetero-atoms, the B-doped-GR surface has a large surface area with strong active sites for wastewater treatment. These theoretical findings can be useful in practical applications for wastewater remediation through hetero-atom-doped graphene composites.
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The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgements
This research is supported by Universiti Tun Hussein Onn Malaysia through grant Tier- (Q524). Also This work was funded by the Fundamental Research Grant Scheme awarded by the Ministry of Higher Education Malaysia [FRGS/1/2019/STG07/UTHM/02/5 (FRGS K171)].
Funding
This research is supported by Universiti Tun Hussein Onn Malaysia through grant Tier- (Q524) Also this work was funded by the Fundamental Research Grant Scheme awarded by the Ministry of Higher Education Malaysia [FRGS/1/2019/STG07/UTHM/02/5 (FRGS K171)].
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M.H.Jameel* wrote the first draft manuscript and performed the all calculations. M.H.Jameel* designed the computational model framework and analyzed the data. M.Z.H.Mayzan** suggested/supervised the computational model framework, and M.A.Agam and M.S.Roslan, commented on the manuscript and review it.
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Jameel, M.H., Mayzan, M.Z.H.B., Roslan, M.S.b. et al. Bandgap Engineering and Tuning of Electronic and Optical Properties of Hetero-atoms-doped-Graphene Composites by Density Functional Quantum Computing for Photocatalytic Applications. Catal Lett 154, 2658–2669 (2024). https://doi.org/10.1007/s10562-023-04541-6
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DOI: https://doi.org/10.1007/s10562-023-04541-6