Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Improved Organic Dye Degradation Using Highly Efficient MXene Composites

Version 1 : Received: 13 November 2018 / Approved: 16 November 2018 / Online: 16 November 2018 (07:39:20 CET)

How to cite: Iqbal, M.A.; Irfan Ali, S.; Tariq, A.; Iqbal, M.Z.; Rizwan, S. Improved Organic Dye Degradation Using Highly Efficient MXene Composites. Preprints 2018, 2018110386. https://doi.org/10.20944/preprints201811.0386.v1 Iqbal, M.A.; Irfan Ali, S.; Tariq, A.; Iqbal, M.Z.; Rizwan, S. Improved Organic Dye Degradation Using Highly Efficient MXene Composites. Preprints 2018, 2018110386. https://doi.org/10.20944/preprints201811.0386.v1

Abstract

Over the years, scarcity of fresh potable water has increased the demand for clean water. Meanwhile, with the advent of nanotechnology, the use of nanomaterials for photocatalytic degradation of pollutants in wastewaters has increased. Herein, a new type of nanohybrids of La and Mn co-doped bismuth ferrite (BiFeO3) nanoparticles embedded into transition metal carbide sheets (MXene) were prepared by a low-cost double solvent sol-gel method, and investigated for their photocatalytic activity. The photoluminescence results showed that pure BFO has highest electron hole recombination rate as compared to all the co-doped BFO/MXene nanohybrids. The larger surface area and higher electron-hole pair generation rate provides suitable environment for fast photo-degradation of organic molecules. The band gap of the prepared nanohybrids was tuned to 1.96 eV having largest BiFeO3 surface area (147 m2g−1) reported till date. Moreover, the BLFO/MXene and BLFMO-5/Mxene degraded the 92% organic pollutant from water in dark and remaining in light spectrum as compare to undoped BFO/Mxene due to enhancement of the surface area and electron-hole recombination rate upon doping. Therefore, these synthesized nanohybrids could be a promising candidate for photocatalytic applications in future.

Keywords

doped-ferrites nanoparticles/MXene; nanocomposites; photocatalysis; chemical etching

Subject

Chemistry and Materials Science, Nanotechnology

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