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Circumferential growth of zinc oxide nanostructure anchored over carbon fabric and its photocatalytic performance towards p-nitrophenol
摘要： In present study, zinc oxide (ZnO) nanostructure anchored on carbon fabric (CF) was prepared using a combinational techniques of RF magnetron sputtering and hydrothermal method. The sputter seeded CF aided for the circumferential growth of ZnO nanostructure and its structural and optical characterization evidencing the c-axis orientation with the band gap of, 3.21 eV. ZnO nanostructure anchored CF was subjected towards UV light photocatalytic activity of p-nitrophenol for 150 min and remarkably higher activity of 98% was observed with better retrieval and recyclability upto 5 cycles. Because of these conspicuous features, it can serve as an expedient hybrid platform for photocatalytic application, better than the benchmark acid treated ZnO/CF.
关键词： Carbon fabric,Photocatalytic activity,Nanostructure,Hydrothermal,Sputtering
更新于2025-09-23 15:21:21
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Solid State Succinonitrile/Sulfide Hole Transport Layer and Carbon Fabric Counter Electrode for a Quantum Dot Solar Cell
摘要： Solid-state quantum dot solar cell (QDSC) is implemented with cadmium sulfide (CdS) quantum dots (QDs) tethered to titanium oxide (TiO2) as photoanode, carbon fabric (C-fabric) as counter electrode (CE) and a solid electrolyte of succinonitrile/Na2S mixed in a 2:1 molar ratio (SN/S2-) is utilized as the hole transport material. Electron transfer and recombination processes are investigated by intensity modulated photocurrent spectroscopy (IMPS) and intensity modulated photovoltage spectroscopy (IMVS) for a TiO2/CdS/ZnS-SN/S2--C-fabric (solid-state) and TiO2/CdS/ZnS-S2--C-fabric (liquid junction) devices at different white light intensities. IMPS and IMVS studies show that the electron transport rate and electron recombination decrease with an increase in the intensity of light. The champion cell with a TiO2/CdS/ZnS photoanode and C-fabric as CE delivers a power conversion efficiency (PCE) of 5.2% with a solid electrolyte of SN/S2- and a PCE of 6.3% with is obtained with the liquid aqueous electrolyte of 0.1 M Na2S. Effect of temperature on solar cell performance and the thermal dependence of ionic conductivity for the solid electrolyte are studied in detail. This study shows that the succinonitrile based solid electrolyte is a good substitute for the traditional liquid electrolyte.
关键词： Solid electrolyte,quantum dots,succinonitrile,solar cells,carbon fabric
更新于2025-09-12 10:27:22