Improved photocatalytic performance of Pd-doped ZnO
Source abstract
Abstract
Abstract ZnO and Pd-doped ZnO photocatalysts with different molar ratio of Pd/Zn (1/100, 2/100, 3/100 and 4/100) were prepared by a sol–gel method. The photocatalysts prepared were characterized by BET surface area, X-ray diffraction (XRD), UV/vis diffuse reflectance (DRS) and surface photovoltage spectroscopy (SPS), respectively. The results show that doping Pd into ZnO decreases the BET surface area. The XRD spectra of the Pd-doped ZnO catalysts calcined at 773 K show only the characteristic peaks of wurtzite-type. Doping Pd into ZnO increases the absorbance of ZnO in visible region and enhances the photoinduced charge separation rate. The photocatalytic activity of Pd-doped ZnO photocatalysts for decolorization of methyl orange (MO) solution was evaluated, of all the photocatalysts prepared, the Pd-doped ZnO with 3/100 possesses the best photocatalytic activity. The results of further experiments show that increased adsorption ability of light and high separation rate of photoinduced charge carriers all play an important role in promotion of photocatalytic activity of Pd-doped ZnO nanostructure.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Advanced Photocatalysis Techniques · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Size-controlled synthesis and optical properties of small-sized ZnO nanorods10.1021/jp809778w ↗
2. First principles calculations of electronic band structure and optical properties of Cr-doped ZnO10.1021/jp811507r ↗
3. Photocatalytic degradation of methyl orange over single crystalline ZnO: orientation dependence of photoactivity and photostability of ZnO10.1021/la803845f ↗
4. Conventional versus lattice photocatalysed reactions: implications of the lattice oxygen participation in the liquid phase photocatalytic oxidation with nanostructured ZnO thin films on reaction products and mechanism at both 254nm and 340nm10.1016/j.apcatb.2011.05.033 ↗
5. Influence of activated carbon in TiO2 and ZnO mediated photo-assisted degradation of 2-propanol in gas–solid regime10.1016/j.apcatb.2010.06.014 ↗
6. Nonhydrolytic route for synthesis of ZnO and its use as a recyclable photocatalyst10.1021/jp910773v ↗
7. Photoluminescence and photocatalysis of the flower-like nano-ZnO photocatalysts prepared by a facile hydrothermal method with or without ultrasonic assistance10.1016/j.apcatb.2011.04.028 ↗
8. Facile synthesis and enhanced photocatalytic performance of flower-like ZnO hierarchical microstructures10.1021/jp909478q ↗
9. Significantly enhanced photocatalytic performance of ZnO via grapheme hybridization and the mechanism study10.1016/j.apcatb.2010.10.007 ↗
10. Synthesis of Au–ZnO and Pt–ZnO nanocomposites by one-step flame spray pyrolysis and its application for photocatalytic degradation of dyes10.1016/j.catcom.2009.03.002 ↗
11. Three-dimensional type II ZnO/ZnSe heterostructures and their visible light photocatalytic activities10.1021/la201755w ↗
12. Surface functionalization of ZnO photocatalysts with monolayer ZnS10.1021/jp7114109 ↗
13. Photocatalytic activity of heterostructures based on ZnO and N-doped ZnO10.1021/am200655h ↗
14. Structural, electronic, and optical properties of Ag-doped ZnO nanowires: first principles study10.1021/jp1098816 ↗
15. Porosity and photocatalytic studies of transition metal doped ZnO nanoclusters10.1016/j.micromeso.2010.05.026 ↗
16. Synthesis and photocatalytic activity of ZnO/ZnO2 composite10.1016/j.jphotochem.2004.12.014 ↗
17. A solution-phase approach to the chemical synthesis of ZnO nanostructures via a low-temperature route10.1016/j.jallcom.2006.11.064 ↗
18. Mechanism and characteristics of porous ZnO films by sol–gel method with PEG template10.1016/j.matlet.2007.08.010 ↗
19. ZnO-based hollow nanoparticles by selective etching: elimination and reconstruction of metal-semiconductor interface, improvement of blue emission and photocatalysis10.1021/nn800353q ↗
20. A highly efficient Ag–ZnO photocatalyst: synthesis, properties, and mechanism10.1021/jp802729a ↗
21. Photocatalytic activity of Ag/ZnO heterostructure nanocatalyst: correlation between structure and property10.1021/jp8027275 ↗
22. Surface photovoltage phase spectroscopy – a handy tool for characterisation of bulk semiconductors and nanostructures10.1016/j.mseb.2006.01.010 ↗
23. Enhancement of the photocatalytic activity of TiO2 nanoparticles by surface-capping DBS groups10.1016/j.apsusc.2005.04.025 ↗
24. A study of quantum confinement properties of photogenerated charges in ZnO nanoparticles by surface photovoltage spectroscopy10.1021/jp037201k ↗
25. Blue luminescence of ZnO nanoparticles based on non-equilibrium processes: defect origins and emission control10.1002/adfm.200901884 ↗
26. Sm3+-doped Bi2O3 photocatalyst prepared by hydrothermal synthesis
27. Photovoltaic properties of polymer/Fe2O3/polymer heterostructured microspheres10.1021/jp973056x ↗
28. Surface photovoltage phenomena: theory, experiment and application10.1016/S0167-5729(99)00002-3 ↗
29. Effects of surface-modification with Bi2O3 on the thermal stability and photoinduced charge property of nanocrystalline anatase TiO2 and its enhanced photocatalytic activity10.1016/j.apsusc.2009.08.037 ↗
30. Improving the thermal stability and photocatalytic activity of nanosized titanium dioxide via La3+ and N co-doping10.1016/j.apcatb.2010.10.006 ↗