Preparation and photocatalytic activity of Mo-doped WO3 nanowires
Source abstract
Abstract
Mo-doped WO3 nanowires were fabricated by a hydrothermal method in the presence of K2SO4. The physical properties of prepared nanowires were characterized by X-ray diffraction (XRD), energy-dispersive X-ray analysis (EDS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results show that the obtained products are nanowires with diameters ranging between 10 and 20 nm, and lengths of about 600 nm. Its photoactivity was evaluated through the photodegradation of methylene blue (MB) in aqueous solution. Effects of the molybdenum concentration on the photoactivity of the obtained samples were investigated detailedly. The experimental results indicated that the Mo-doping enhanced the photoactivity of WO3 nanowires.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · Gas Sensing Nanomaterials and Sensors · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Bamwenda GR, Arakawa H (2001) The visible light induced photocatalytic activity of tungsten trioxide powders. Appl Catal A 210:181–19110.1016/S0926-860X(00)00796-1 ↗
2. Chen CC (2007) Degradation pathways of ethyl violet by photocatalytic reaction with ZnO dispersions. J Mol Catal A 264:82–8910.1016/j.molcata.2006.09.013 ↗
3. Gondal MA, Sayeed MN, Arfaj A (2007) Activity comparison of Fe2O3, NiO, WO3 and TiO2 semiconductor catalysts in phenol degradation by laser enhanced photo-catalytic process. Chem Phys Lett 445:325–33010.1016/j.cplett.2007.07.094 ↗
4. Gondal MA, Dastageer A, Khalil A (2009) Synthesis of nano-WO3 and its catalytic activity for enhanced antimicrobial process for water purification using laser induced photo-catalysis. Catal Comm 11:214–21910.1016/j.catcom.2009.10.011 ↗
5. Gu G, Zheng B, Han WQ, Roth S, Liu J (2002) Tungsten oxide nanowires on tungsten substrates. Nano Lett 2:849–85110.1021/nl025618g ↗
6. Guo Y, Quan X, Lu N, Zhao H, Chen S (2007) High photocatalytic capability of selfassembled nanoporous WO3 with preferential orientation of (002) planes. Environ Sci Technol 41:4422–442710.1021/es062546c ↗
7. Lee K, Seo WS, Park JT (2003) Synthesis and optical properties of colloidal tungsten oxide nanorods. J Am Ceram Soc 125:3408–3409
8. Li XL, Lou TJ, Sun XM, Li YD (2004) Highly sensitive WO3 hollow-sphere gas sensors. Inorg Chem 43:5442–544910.1021/ic049522w ↗
9. Liu H, Peng T, Ke D, Peng Z, Yan C (2007) Preparation and photocatalytic activity of dysprosium doped tungsten trioxide nanoparticles. Mater Chem Phys 104:377–38310.1016/j.matchemphys.2007.03.028 ↗
10. Liu Y, Zhang YC, Xu XF (2009) Hydrothermal synthesis and photocatalytic activity of CdO2 nanocrystals. J Hazard Mater 163:1310–131410.1016/j.jhazmat.2008.07.101 ↗
11. Qamar M, Gondal MA, Hayat K, Yamani ZH, Al-Hooshani K (2009a) Laser-induced removal of a dye C.I. Acid Red 87 using n-type WO3 semiconductor catalyst. J Hazard Mater 170:584–58910.1016/j.jhazmat.2009.05.099 ↗
12. Qamar M, Gondal MA, Yamani ZH (2009b) Synthesis of highly active nanocrystalline WO3 and its application in laser-induced photocatalytic removal of a dye from water. Catal Comm 10:1980–198410.1016/j.catcom.2009.07.014 ↗
13. Stengl V, Bakardjieva S, Murafa N (2009) Preparation and photocatalytic activity of rare earth doped TiO2 nanoparticles. Mater Chem Phys 114:217–22610.1016/j.matchemphys.2008.09.025 ↗
14. Wang HY, Xu P, Wang TM (2002) The preparation and properties study of photocatalytic nanocrystalline/nanoporous WO3 thin films. Mater Des 23:331–33610.1016/S0261-3069(01)00040-1 ↗
15. Wang S, Shi X, Shao G, Duan X, Yang H, Wang T (2008) Preparation, characterization and photocatalytic activity of multi-walled carbon nanotube-supported tungsten trioxide composites. J Phys Chem Solids 69:2396–240010.1016/j.jpcs.2008.04.029 ↗
16. Xin G, Guo W, Ma T (2009) Effect of annealing temperature on the photocatalytic activity of WO3 for O2 evolution. Appl Surf Sci 256:165–16910.1016/j.apsusc.2009.07.102 ↗
17. Yu J, Qi L (2009) Template-free fabrication of hierarchically flower-like tungsten trioxide assemblies with enhanced visible-light-driven photocatalytic activity. J Hazard Mater 169:221–22710.1016/j.jhazmat.2009.03.082 ↗
18. Yu JG, Su YR, Cheng B (2007) Template-free fabrication and enhanced photocatalytic activity of hierarchical macro-/mesoporous titania. Adv Funct Mater 17:1984–199010.1002/adfm.200600933 ↗
19. Yu J, Qi L, Cheng B, Zhao X (2008a) Effect of calcination temperatures on microstructures and photocatalytic activity of tungsten trioxide hollow microspheres. J Hazard Mater 160:621–62810.1016/j.jhazmat.2008.03.047 ↗
20. Yu JG, Yu HG, Guo HT, Li M, Mann S (2008b) Spontaneous formation of a tungsten trioxide sphere-in-shell superstructure by chemically induced selftransformation. Small 4:87–9110.1002/smll.200700738 ↗
21. Yu J, Yu X, Huang B, Zhang X, Dai Y (2009) Hydrothermal synthesis and visible-light photocatalytic activity of novel cage-like ferric oxide hollow spheres. Cryst Growth Des 9:1474–148010.1021/cg800941d ↗
22. Zhang M, An T, Hu X, Wang C, Sheng G, Fu J (2004) Preparation and photocatalytic properties of a nanometer ZnO-SnO2 coupled oxide. Appl Catal A 260:215–22210.1016/j.apcata.2003.10.025 ↗
23. Zhao X, TL Cheung Y, Zhang X, Ng DHL, Yu J (2006) Facile preparation of strontium tungstate and tungsten trioxide hollow spheres. J Am Ceram Soc 89:2960–296310.1111/j.1551-2916.2006.01140.x ↗
24. Zhu YQ, Hu W, Hsu WK, Terrones M, Grobert N, Hare JP, Kroto HW, Walton DRM, Terrones H (1999) Tungsten oxide tree-like structures. Chem Phys Lett 309:327–33410.1016/S0009-2614(99)00732-0 ↗