PMID- 20596419
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160528
LR  - 20211020
IS  - 1931-7573 (Print)
IS  - 1556-276X (Electronic)
IS  - 1556-276X (Linking)
VI  - 4
IP  - 7
DP  - 2009 Mar 19
TI  - Sol-Gel and Thermally Evaporated Nanostructured Thin ZnO Films for Photocatalytic 
      Degradation of Trichlorophenol.
PG  - 627-34
LID - 10.1007/s11671-009-9290-1 [doi]
AB  - In the present work, thermal evaporation and sol-gel coating techniques were 
      applied to fabricate nanostructured thin ZnO films. The phase structure and 
      surface morphology of the obtained films were investigated by X-ray 
      diffractometer (XRD) and scanning electron microscope (SEM), respectively. The 
      topography and 2D profile of the thin ZnO films prepared by both techniques were 
      studied by optical profiler. The results revealed that the thermally evaporated 
      thin film has a comparatively smoother surface of hexagonal wurtzite structure 
      with grain size 12 nm and 51 m(2)/g. On the other hand, sol-gel films exhibited 
      rough surface with a strong preferred orientation of 25 nm grain size and 27 
      m(2)/g surface area. Following deposition process, the obtained films were 
      applied for the photodegradation of 2,4,6-trichlorophenol (TCP) in water in 
      presence of UV irradiation. The concentrations of TCP and its intermediates 
      produced in the solution during the photodegradation were determined by high 
      performance liquid chromatography (HPLC) at defined irradiation times. Complete 
      decay of TCP and its intermediates was observed after 60 min when the thermal 
      evaporated photocatalyst was applied. However, by operating sol-gel catalyst, the 
      concentration of intermediates initially increased and then remained constant 
      with irradiation time. Although the degradation of TCP followed first-order 
      kinetic for both catalysts, higher photocatalytic activity was exhibited by the 
      thermally evaporated ZnO thin film in comparison with sol-gel one.
FAU - Abdel Aal, A
AU  - Abdel Aal A
FAU - Mahmoud, Sawsan A
AU  - Mahmoud SA
FAU - Aboul-Gheit, Ahmed K
AU  - Aboul-Gheit AK
LA  - eng
PT  - Journal Article
DEP - 20090319
PL  - United States
TA  - Nanoscale Res Lett
JT  - Nanoscale research letters
JID - 101279750
PMC - PMC2894055
EDAT- 2009/01/01 00:00
MHDA- 2009/01/01 00:01
PMCR- 2009/03/19
CRDT- 2010/07/03 06:00
PHST- 2009/01/31 00:00 [received]
PHST- 2009/03/05 00:00 [accepted]
PHST- 2010/07/03 06:00 [entrez]
PHST- 2009/01/01 00:00 [pubmed]
PHST- 2009/01/01 00:01 [medline]
PHST- 2009/03/19 00:00 [pmc-release]
AID - 1556-276X-4-627 [pii]
AID - 10.1007/s11671-009-9290-1 [doi]
PST - epublish
SO  - Nanoscale Res Lett. 2009 Mar 19;4(7):627-34. doi: 10.1007/s11671-009-9290-1.