Effect of organic capping agent on the photocatalytic activity of MgO nanoflakes obtained by thermal decomposition route
Source abstract
Abstract
Abstract In the present work we report a facile and eco-friendly route to synthesize magnesium oxide (MgO) nanoflakes by thermal decomposition of precursors, which are prepared by a reflux condensation approach using different solvents namely ethylenediamine (EDA), hexamethylediamine (HTMA) and triethanolamine (TEA). X-ray diffraction (XRD) pattern reveales the polycrystalline nature of MgO with cubic structure. Fourier transform infrared spectroscopy (FTIR) studies confirmed the formation of MgO with the characteristic vibrational mode of Mg–O. Scanning electron microscopy (SEM) images revealed the formation of MgO nanoflakes. Optical band gap energy of MgO nanocrystals calculated from UV diffused reflectance spectroscopy (DRS) varied from 5.42 to 5.56 eV. Photoluminescence (PL) spectra exhibited visible emissions due to the formation of defects in the band gap region of MgO. The photocatalytic degradation of methyl orange (MO) dye by MgO nanoflakes synthesized using different solvents was investigated under UV light irradiation and the results demonstrate that MgO nanoflakes possess appreciable photocatalytic activity for decomposing MO dye, when EDA is used as a capping agent.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnesium Oxide Properties and Applications · ZnO doping and properties · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Photocatalytic treatment of 4-chlorophenol in aqueous ZnO suspensions: intermediates, influence of dosage and inorganic anions10.1016/j.jhazmat.2009.01.130 ↗
2. Photocatalytic degradation of cellulose bleaching effluent by supported TiO2 and ZnO10.1016/S0045-6535(99)00551-2 ↗
3. Photocatalytic degradation of model textile dyes in wastewater using ZnO as semiconductor catalyst10.1016/j.jhazmat.2004.05.013 ↗
4. Investigation of the effect of heat attachment method parameters at photocatalytic activity of immobilized ZnO nanoparticles on glass plate10.1016/j.desal.2009.06.021 ↗
5. Enhanced visible light photocatalysis by manganese doping or rapid crystallization with ZnO nanoparticles10.1016/j.matchemphys.2011.07.018 ↗
6. Sun light assisted photocatalytic decontamination of sulfur mustard using ZnO nanoparticles10.1016/j.molcata.2011.08.018 ↗
7. The photocatalytic and antibacterial activities of neodymium and iodine doped TiO2 nanoparticles10.1016/j.colsurfb.2010.03.031 ↗
8. Photocatalytic efficiency of ZnO plates in degradation of azo dye solutions10.1016/j.jphotochem.2008.02.007 ↗
9. Synthesis and characterization of WO3 nanoparticles prepared by the precipitation method: evaluation of photocatalytic activity under vis-irradiation10.1016/j.solidstatesciences.2009.10.010 ↗
10. Single-crystalline α-Fe2O3 with hierarchical structures: controllable synthesis, formation mechanism and photocatalytic properties10.1016/j.jssc.2009.01.041 ↗
11. Preparation of spindly CuO micro-particles for photodegradation of dye pollutants under a halogen tungsten lamp10.1016/j.apcata.2011.08.007 ↗
12. The catalytic effect of nanosized MgO on the decomposition of ammonium perchlorate10.1016/j.powtec.2006.10.038 ↗
13. Self-assembly of porous MgO nanoparticles into coral-like microcrystals10.1016/j.scriptamat.2006.01.036 ↗
14. Novel surfactant-free synthesis of MgO nanoflakes10.1016/j.jallcom.2009.04.129 ↗
15. Influence of titanium doping on the structure and morphology of MgO prepared by coprecipitation method10.1016/j.matchar.2009.02.002 ↗
16. Self-assembled growth of MgO nanosheet arrays via a micro-arc oxidation technique10.1016/j.apsusc.2006.08.034 ↗
17. Photoluminescence and photocatalytic activity of MgO powders10.1016/0254-0584(88)90017-X ↗
18. Photocatalytic activity of metal oxides—the role of holes and OH radicals10.1016/j.apcatb.2011.07.008 ↗
19. N-doped TiO2/ZnO composite powder and its photocatalytic performance for degradation of methyl orange10.1016/j.surfcoat.2009.09.028 ↗
20. Preparation of Ag nanoparticles coated tetrapod-like ZnO whisker photocatalysts using photoreduction10.1016/j.mseb.2011.05.027 ↗
21. One-pot synthesis, photoluminescence, and photocatalysis of Ag/ZnO composites10.1016/j.jcis.2007.01.011 ↗
22. Preparation and enhanced visible light-driven catalytic activity of ZnO microrods sensitized by porphyrin heteroaggregate10.1016/j.apsusc.2010.04.074 ↗
23. Preparation of nanocrystalline MgO by surfactant assisted precipitation method10.1016/j.materresbull.2011.06.007 ↗
24. Comparative study of microwave and conventional methods for the preparation and optical properties of novel MgO-micro and nano-structures10.1016/j.jallcom.2011.08.032 ↗
25. Facile fabrication of mesoporous MgO microspheres and their enhanced adsorption performance for phosphate from aqueous solutions10.1016/j.colsurfa.2010.11.050 ↗
26. Solvo- or hydrothermal fabrication and excellent carbon dioxide adsorption behaviors of magnesium oxides with multiple morphologies and porous structures10.1016/j.matchemphys.2011.02.073 ↗
27. Large-scale synthesis of single-crystalline MgO with bone-like nanostructures10.1007/s11051-006-9138-x ↗
28. The improved photocatalytic properties of p-type NiO loaded porous TiO2 sheets prepared via freeze tape-casting10.1016/j.solidstatesciences.2009.09.021 ↗
29. The enhanced visible light photocatalytic activity of nanosheet-like Bi2WO6 obtained by acid treatment for the degradation of rhodamine B10.1016/j.matlet.2010.06.042 ↗
30. Synthesis, characterization and optical properties of Mg(OH)2 micro–/nanostructure and its conversion to MgO10.1016/j.ceramint.2009.05.035 ↗
31. Magnesium oxide nanocrystals via thermal decomposition of magnesium oxalate10.1016/j.jpcs.2010.08.014 ↗
32. Growth of MgO nanowires assisted by the annealing treatment of Au-coated substrates10.1016/j.cplett.2006.02.062 ↗
33. Coating of MgO nanorods with protective layers: sputtering with a Si target, structure, and photoluminescence properties10.1016/j.surfcoat.2007.09.018 ↗
34. A study of the dispersions of metal oxide nanowires in polar solvents10.1016/j.cplett.2005.10.052 ↗
35. Defect induced ferromagnetism in MgO nanoparticles studied by optical and positron annihilation spectroscopy10.1016/j.cplett.2009.07.037 ↗
36. Photocatalytic degradation of C.I. Acid Red 27 by immobilized ZnO on glass plates in continuous-mode10.1016/j.jhazmat.2006.07.054 ↗
37. N. Kaneva, I. Stambolova, V. Blaskov, Y. Dimitriev, A. Bojinova, C. Dushkin, A comparative study on the photocatalytic efficiency of ZnO thin films prepared by spray pyrolysis and sol–gel method, Surface and Coatings Technology. (2011) In press.10.1016/j.surfcoat.2011.10.020 ↗
38. Converting layered zinc acetate nanobelts to one-dimensional structured ZnO nanoparticle aggregates and their photocatalytic activity10.1007/s11671-008-9136-2 ↗
39. Ultralong Cu(OH)2 and CuO nanowire bundles: PEG200-directed crystal growth for enhanced photocatalytic performance10.1016/j.jcis.2010.04.052 ↗
40. 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 ↗
41. Large-scale synthesis of ZnO balls made of fluffy thin nanosheets by simple solution process: Structural, optical and photocatalytic properties10.1016/j.jcis.2011.07.058 ↗