Abstract
DyCrO3/\(r\)-GO (DCO/\(r\)-GO) and Dy0.5Ho0.5CrO3/\(r\)-GO (DHCO/\(r\)-GO) nanocomposites consisting of 5 wt.% \(r\)-GO were synthesized by the sol–gel method, and their photocatalytic performance was studied on methylene blue (MB) and rhodamine B (RhB) dyes under solar irradiation. The bandgap energy of DCO/\(r\)-GO and DHCO/\(r\)-GO nanocomposites was found to be 2.63 eV and 2.58 eV, respectively. The DCO/\(r\)-GO and DHCO/\(r\)-GO nanocomposites demonstrated remarkably higher photocatalytic activity than DCO and DHCO nanoparticles. The DCO/\(r\)-GO and DHCO/\(r\)-GO nanocomposites furnished 69.6% and 71.6% degradation of the MB dye and 87% and 96% degradation of RhB dye within 180 min under direct sunlight.
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Acknowledgements
We acknowledge Department of Science and Technology (DST), India, for INSPIRE fellowship (IF No. 190213) to Manjeet Rani and DST SERB, India, for the utilization of facility sanctioned in the Project ECR/2017/002681 to Neeraj Panwar. The XRD facility at the Central University of Rajasthan (CURAJ) and SEM facility at Thapar Institute of Engineering & Technology (Patiala) are also acknowledged. MDU Rohtak (India) is also acknowledged for optical measurements. Dr. Ritu Singh, CURAJ (India), is acknowledged for absorbance measurements.
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Rani, M., Yadav, M.K. & Panwar, N. Photocatalytic performance of DyCrO3/\(r\)-GO and Dy0.5Ho0.5CrO3/\(r\)-GO nanocomposites: a comparison. Indian J Phys (2023). https://doi.org/10.1007/s12648-023-03024-z
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DOI: https://doi.org/10.1007/s12648-023-03024-z