Photocatalytic performance of Pr/In/Nd composite oxides synthesized by solid state reaction
Source abstract
Abstract
Abstract Pr/In/Nd composite oxides with different Pr/In/Nd ratios were successfully prepared using a simple solid state reaction at 873 K. The composites were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area measurements, photoluminescence (PL) spectra and UV–vis diffuse reflection spectroscopy (UV–vis DRS). The photocatalytic activity of Pr/In/Nd composite oxides was investigated by the degradation of methyl orange (MO) in an aqueous solution under UV and visible light irradiation. It is found that compared with pure In2O3, the absorption intensity of the Pr/In/Nd composite oxide (Pr/In/Nd=1:8:1) increases in the 200–800 nm light region and the absorption edge has a shift to longer wavelength. In addition, the Pr/In/Nd composite oxide (Pr/In/Nd=1:8:1) shows higher UV and visible light photocatalytic activities than pure In2O3. The remarkably enhanced photocatalytic activities could be mainly attributed to the fact that proper introduction of Pr2O3 and Nd2O5 increased the BET surface area of In2O3, improved the separation efficiency of photogenerated electrons and holes, and enhanced the absorption intensity in 200–800 nm light region. The effect of various radical scavengers on the degradation of MO showed that OH, O2−, h+ and H2O2, especially O2−, jointly dominated the photodegradation process of MO under UV light irradiation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear materials and radiation effects · Radioactive element chemistry and processing · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
Show source-provided references
1. Increasing solar absorption for photocatalysis with black hydrogenated titanium dioxide nanocrystals10.1126/science.1200448 ↗
2. Titanium and zinc oxide nanoparticles are proton-coupled electron transfer agents10.1126/science.1220234 ↗
3. Molecular oxygen adsorption behaviors on the rutile TiO2(110)-1×1 surface: an in situ study with low-temperature scanning tunneling microscopy10.1021/ja110375n ↗
4. Photocatalytic degradation of dichlorvos in aqueous TiO2 suspensions
5. Determination of the photocatalytic efficiency of TiO2 coatings on ceramic tiles by monitoring the photodegradation of organic dyes10.1016/j.ceramint.2011.09.050 ↗
6. Synthesis of Bi2WO6 porous thin films as efficient visible-active photocatalyst10.1002/adma.200801354 ↗
7. Formation of surface complex leading to efficient visible photocatalytic activity and improvement of photostabilty of ZnO10.1021/jp9056863 ↗
8. Degradation of acid orange 7 using magnetic AgBr under visible light: the roles of oxidizing species10.1016/j.chemosphere.2009.06.027 ↗
9. Effective photocatalytic disinfection of E. coli K-12 using AgBr–Ag–Bi2WO6 nanojunction system irradiated by visible light: the role of diffusing hydroxyl radicals10.1021/es903087w ↗
10. In2O3 nanoporous nanosphere: a highly efficient photocatalyst for decomposition of perfluorooctanoic acid10.1016/j.apcatb.2012.06.017 ↗
11. Evaporated Sn-doped In2O3 films: basic optical properties and applications to energy-efficient windows10.1063/1.337534 ↗
12. High-efficiency indium tin oxide/indium phosphide solar cells10.1063/1.101363 ↗
13. Photocatalytic properties of porous metal oxide networks formed by nanoparticle infiltration in a polymer gel template10.1021/jp026929i ↗
14. Synthesis and photocatalytic activities of NaNbO3 rods modified by In2O3 nanoparticles10.1021/jp906550t ↗
15. Enhancement of the visible-light photocatalytic activity of In2O3–TiO2 nanofiber heteroarchitectures10.1021/am201499r ↗
16. Photocatalytic water splitting with the Cr-doped Ba2In2O5/In2O3 composite oxide semiconductors10.1021/cm0477117 ↗
17. Nitrogen-doped In2O3 thin film electrodes for photocatalytic water splitting10.1021/jp072831y ↗
18. Photocatalytic activity for overall water splitting of RuO2-loaded YxIn2−xO3 (x=0.9−1.5)10.1021/jp709629t ↗
19. Praseodymium silicate formed by postdeposition high-temperature annealing10.1063/1.1828584 ↗
20. Praseodymium silicate films on Si(100) for gate dielectric applications: physical and electrical characterization10.1063/1.2202235 ↗
21. Structural properties and electrical characteristics of praseodymium oxide gate dielectrics10.1149/1.2458622 ↗
22. Novel BiOI/BiOBr heterojunction photocatalysts with enhanced visible light photocatalytic properties10.1016/j.catcom.2011.06.019 ↗
23. Synthesis, structural, and optical properties in monoclinic Er:KYb(WO4)2 nanocrystals10.1021/jp901109a ↗
24. Study on the photocatalytic degradation of glyphosate by TiO2 photocatalyst10.1016/j.chemosphere.2006.10.054 ↗
25. Photocatalytic efficiency of TiO2/poly[acrylamide-co-(acrylic acid)] composite for textile dye degradation10.1016/j.polymdegradstab.2010.04.019 ↗
26. A comparison of chemisorption kinetic models applied to pollutant removal on various sorbents
27. P25-graphene composite as a high performance photocatalyst10.1021/nn901221k ↗
28. Combustion synthesis and characterization of nanocrystalline WO310.1021/ja8012402 ↗
29. Preparation and characterization of TiO2 photocatalysts by Fe3+ doping together with Au deposition for the degradation of organic pollutants10.1016/j.apcatb.2008.10.008 ↗
30. Synthesis of M@TiO2 (M=Au, Pd, Pt) core–shell nanocomposites with tunable photoreactivity10.1021/jp2009989 ↗