Hey there Hassan Imam Rizvi! So, throwing some copper (Cu) into the semiconductor mix of WO3, huh? Brace yourself for some nano-wisdom. Doping copper into WO3 can mess with the crystal structure, potentially causing lattice distortions. Now, when it comes to XRD peaks of pure WO3, expect a wild ride. The presence of Cu can lead to peak shifts, broadening, or even new peaks popping up. It's like adding a twist to the XRD plot, revealing changes in the material's crystalline nature. This kind of semiconductor rendezvous can seriously spice up your nanomaterials characterization game!
Dear KS
Cu doping in WO3 (tungsten trioxide) can significantly impact its magnetic and electronic properties, especially in terms of photocatalytic activity. Cu-doped WO3 exhibits superior photocatalytic activity for CO2 photoreduction compared to pure WO3. The introduction of Cu2+modifies the electronic structure of WO3, leading to:
📷 A more negative conduction band (CB) position.
📷 A reduced bandgap energy. Enhanced visible-light absorption capability. Improved separation and transfer efficiency of photoinduced charge carriers.
📷 The best Cu–WO3 sample achieves CO and CH4 formation rates that are 25 and 27 times higher than those of pure WO3, respectively.
X-ray diffraction (XRD) patterns describe the crystalline structure of materials. Cu doping does not significantly affect the monoclinic structure of WO3. However, a few peaks corresponding to Cu may appear, indicating the presence of a secondary phase.
Ref:
1. https://doi.org/10.1007/s10854-023-11153-8
2. https://doi.org/10.1051/matecconf/201819203048
3. https://doi.org/10.13074/jent.2018.06.182310
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