Solvent free synthesis of ZnO nanostructures and evaluation of their capability for water treatment
Source abstract
Abstract
Abstract ZnO hexagonal disks were successfully synthesized using mechanochemical reaction followed by heating treatment. Urea was used as a complexing and directing agent to produce precursor, namely, [Zn(CO(NH2)2)·(NO3)2]·3(H2O). The as-synthesized product indicated a pure and uniform morphology of hexagonal-based disks with the average thickness of 52 nm and high aspect ratio of 96. The change of some reaction conditions was led to generate timber-like and particulate structures. The structural and morphological characteristics of all samples were also discussed in detail. In addition, the batch studies were carried out to evaluate the capability of the prepared products for the removal of toxic dyes like Brilliant green and Malachite green, the industry wastes, using adsorption process with a post-photocatalytic treatment. The results showed the hexagonal disks and timber-like nanostructures are the efficient decolorizing adsorbents for water treatment by both of adsorption and photocatalytic pathways. Although the value of maximum adsorption capacity was good, the photocatalytic degradation indicated a superior removal efficiency of dye pollutants on the prepared ZnO nanostructures.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Magnesium Oxide Properties and Applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. ZnO: from basics towards applications10.1002/pssb.200743072 ↗
2. 65 Years of ZnO research–old and very recent results10.1002/pssb.200983195 ↗
3. Synthesis, characterization and optical properties of ZnS nanobelt/ZnO nanoparticle heterostructures10.1016/j.matlet.2012.05.054 ↗
4. Electrochemical and structural analysis of Al-doped ZnO nanorod arrays in dye-sensitized solar cells10.1016/j.jpowsour.2012.04.071 ↗
5. Structural and luminescence properties of pure and Al-doped ZnO nanopowders10.1016/j.mseb.2012.04.010 ↗
6. A two-step route to synthesize highly oriented ZnO nanotube arrays10.1016/j.ceramint.2012.02.033 ↗
7. ZnO micro and nanocrystals with enhanced visible light absorption10.1016/j.mseb.2012.05.013 ↗
8. Electrochemical synthesis and photocatalytic behavior of flower shaped ZnO microstructures10.1016/j.powtec.2012.04.021 ↗
9. Synthesis and characterization of ZnO with hexagonal dumbbell-like bipods microstructures10.1016/j.apt.2011.05.011 ↗
10. Optical wave guide based on ZnO nanowires prepared by a thermal evaporation process10.1016/j.jallcom.2012.03.114 ↗
11. Preparation and photocatalytic activity of Cu-doped ZnO thin films prepared by the sol–gel method10.1016/j.apsusc.2012.05.021 ↗
12. High efficient ZnO nanowalnuts photocatalyst: a case study10.1016/j.materresbull.2014.06.026 ↗
13. Controlled synthesis of 1D ZnO nanostructures via hydrothermal process10.1016/j.materresbull.2013.09.046 ↗
14. Sonochemical synthesis, photocatalytic activity and optical properties of silica coated ZnO nanoparticles10.1016/j.ultsonch.2011.12.011 ↗
15. Controlled mechanochemically assisted synthesis of ZnO nanopowders in the presence of oxalic acid10.1007/s10853-011-5273-6 ↗
16. A novel nanostructure of cadmium oxide synthesized by mechanochemical method10.1016/j.materresbull.2011.07.016 ↗
17. A review on mechanochemical syntheses of functional materials10.1016/j.apt.2012.05.002 ↗
18. Preparation of ZnO nanoparticles from [bis(acetylacetonato) zinc(II)]—oleylamine complex by thermal decomposition10.1016/j.matlet.2007.10.032 ↗
19. ZnO nanotriangles: synthesis, characterization and optical properties
20. Solvent-less synthesis of zinc oxide nanostructures from Zn(salen) as precursor and their optical properties10.1016/j.partic.2012.03.006 ↗
21. Synthesis and characterization of ZnO nanocrystals from thermolysis of new precursor10.1016/j.cej.2008.09.042 ↗
22. Novel precursor-assisted synthesis and characterization of zinc oxide nanoparticles/nanofibers10.1016/j.matlet.2013.01.129 ↗
23. Single-crystal hexagonal disks and rings of ZnO: low-temperature, large-scale synthesis and growth mechanism10.1002/anie.200460783 ↗
24. Low-temperature growth of ZnO with controllable shapes and band gaps10.1016/j.jcrysgro.2008.02.014 ↗
25. Photocatalytic degradation of organic dyes with manganese-doped ZnO nanoparticles10.1016/j.jhazmat.2007.12.033 ↗
26. Zinc oxide mediated heterogeneous photocatalytic degradation of organic species under solar radiation10.1016/j.jphotobiol.2011.04.010 ↗
27. A novel strategy to prepare ZnO/PbS heterostructured functional nanocomposite utilizing the surface adsorption property of ZnO nanosheets10.1016/j.cattod.2010.07.013 ↗
28. ZnO shell on mesoporous silica by atomic layer deposition: Removal of organic dye in water by an adsorbent and its photocatalytic regeneration10.1016/j.apsusc.2014.04.060 ↗
29. Alkali-dependent synthesis of flower-like ZnO structures with enhanced photocatalytic activity via a facile hydrothermal method10.1016/j.apsusc.2012.02.034 ↗
30. Studies on the adsorption of Brilliant Green dye from aqueous solution onto low-cost NaOH treated saw dust10.1016/j.desal.2011.01.049 ↗
31. Synthesis and characterization of the special ZnO nanostructure by mechanochemical process10.1016/j.matlet.2012.10.045 ↗
32. Nakamoto · 2009
33. Pavia · 2009
34. Low-temperature growth of ZnO with controllable shapes and band gaps10.1016/j.jcrysgro.2008.02.014 ↗
35. CO sensing characteristics of hexagonal-shaped CdO nanostructures prepared by microwave irradiation
36. Multilayered ZnO Nanosheets with 3D Porous Architectures: Synthesis and Gas Sensing Application10.1021/jp100792c ↗
37. K. Mondal, A. Sharma, Photocatalytic Oxidation of Pollutant Dyes in Wastewater by TiO2 and ZnO nano-materials–A Mini-review, Nanoscience & Technology for Mankind 2014, chapter 5: pages 36-72, The National Academy of Sciences India (NASI).
38. Adsorptive removal of Congo red a carcinogenic textile dye, from aqueous solutions by maghemite nanoparticles10.1016/j.jhazmat.2009.09.066 ↗
39. Freundlich and Langmuir adsorption isotherms and kinetics for the removal of Tartrazine from aqueous solutions using hen feathers10.1016/j.jhazmat.2006.12.012 ↗
40. Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms studies of equilibrium sorption of Zn2+ onto phosphoric acid modified rice husk