Degradation enhancement of methylene blue on ZnO nanocombs synthesized by thermal evaporation technique. Issue 54 (19th November 2016)

• Record Type: Journal Article
• Authors: Rashad, M.; Shaalan, N.M.; Abd-Elnaiem, Alaa M.
• Is Part Of: Desalination and water treatment. Volume 57:Issue 54(2016)
• Page Start: 26267
• Page End: 26273
• Publication Date: 2016-11-19
• Subjects: Nanostructures -- ZnO -- Thermal evaporation -- Photocatalytic; Saline water conversion -- Periodicals; Saline water conversion; Water -- Purification; Periodicals; 628.167
• DOI: 10.1080/19443994.2016.1163511
• Languages: English
• ISSNs: 1944-3994

Abstract

Abstract: Different zinc oxide (ZnO) morphologies were synthesized via a thermal evaporation-like technique without a catalyst introduction. The morphology of ZnO has been controlled by varying the evaporation pressure of ambient air. X-ray diffractometer and field emission scanning electron microscope were used for crystallinity and morphology investigation, respectively. The X-ray data confirmed the purity and crystallinity of the as-prepared ZnO structure. A variation of the pressure led to different morphologies of ZnO nanostructure such as nanocombs and nanorods. The influence of these different morphologies on the photocatalytic activity was performed on a water wasted methylene blue. The results showed the geometry of one-dimensional nanostructures deposited at different pressures strongly controls the photocatalytic activity of ZnO. The most suitable photocatalytic performance was recorded for ZnO deposited at 0.15 Torr, which showed one-side nanocombs of long nails.