Au nanoparticles dispersed polypyrrole-carbon black/SrTiO 3 nanocomposite photocatalyst with rapid and stable photocatalytic performance
Journal of Saudi Chemical Society, ISSN: 1319-6103, Vol: 27, Issue: 6, Page: 101741
2023
- 4Citations
- 12Captures
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Article Description
The current chaotic environmental situation especially water pollution prerequisites efficient novel photocatalysts for the proper treatment of these toxic structures through advanced oxidation process. However, the development of active photocatalytic structures requires further committed effort to ensure proper designing and essential band gap. In this report, an attempt has been made to fabricate a rapid and efficient photocatalyst based on SrTiO 3 nanostructures, polypyrrole doped carbon black (PPyC) and Au nanoparticles to tackle serious problems of water contamination. Au@PPyC/SrTiO 3 ternary photocatalyst was smoothly fabricated by sol gel route followed by ultrasonication and photoreduction technique. X-ray powder diffraction (XRD) studies revealed that SrTiO 3 have cubic perovskite structure, while X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) confirmed the formation of ternary framework among Au, PPyC and SrTiO 3 nanostructures. Transmission electron microscopy (TEM) revealed that SrTiO 3 possessed irregular porous nanoparticles ranging from 10 to 100 nm, whereas the PPyC appeared as well-ordered chain of beads or interconnected branches of nanoparticles. Modification of bare SrTiO 3 to Au@PPyC/SrTiO 3 significantly increases the surface area to 2.48 times than that of SrTiO 3. The photocatalytic performance of the newly developed Au@PPyC/SrTiO 3 photocatalyst has been tested on insecticide imidacloprid and on methylene blue (MB) dye. The current Au@PPyC/SrTiO 3 photocatalytic framework exhibited ultrafast skills by removing 96.65% of imidacloprid just in 15 min and found to be ∼3.5 times more effective than bare SrTiO 3. Besides this Au@PPyC/SrTiO 3 photocatalyst was proven to be extremely destructive for resistant MB dye structure.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S131961032300145X; http://dx.doi.org/10.1016/j.jscs.2023.101741; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85173280589&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S131961032300145X; https://dx.doi.org/10.1016/j.jscs.2023.101741
Springer Science and Business Media LLC
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