Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 181, Issue 1-3, Pages 708-715Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2010.05.070
Keywords
alpha-Naphthol; Semiconductor; Photodegradation; Bactericidal activity
Categories
Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi [01(2031)/06/EMR-II]
Ask authors/readers for more resources
1-Naphthol photodegrades on the surfaces of TiO2, ZnO, CeO2, CdO, WO3, Co3O4, Sb2O3, ZrO2, La2O3, Y2O3, Pr6O11, Sm2O3 and Al2O3, albeit at different efficiencies, and all the oxides show sustainable photocatalytic activity. The degradation conforms to the Langmuir-Hinshelwood kinetic model and enhances with the intensity of illumination. Dissolved oxygen is essential for the degradation. ZnO and TiO2 anatase are the most efficient photocatalysts to degrade 1-naphthol. ZnO wurtzite, besides serving as an effective photocatalyt to degrade 1-naphthol, also acts as a bactericide; it inactivates E.coli even in absence of direct light. At a loading of 0.8 g L-1, it kills about 44% of 2.5 x 10(12) CFU mL(-1) E. coli in 1/2 h under dark condition. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available