NDLI: Photocatalytic activity of flower-like ZnO derived by a d-glucose-assisted sonochemical method

Content Provider	Springer Nature Link
Author	Srikhaow, Assadawoot Smith, Siwaporn Meejoo
Copyright Year	2012
Abstract	This work reports the preparation of flower-like ZnO for applications in the catalytic oxidation of methyl orange (MO) in aqueous solution. The wurtzite ZnO samples with flower-like morphologies were obtained via a d-glucose-assisted sonochemical method. Effects of the presence of glucose, sonication times (0, 10, and 20 min) and calcination temperatures (300, 400, and 500 °C) on the morphology of the catalysts were investigated. Results from this work suggest that d-glucose played an important role in the formation of flower-like morphologies and the sonication processes further enhanced the flower-like characteristic ordering. The majority of ZnO samples prepared in this work had rather high photocatalytic activity after 45 min, with MO degradation greater than 85 % of the initial concentration. These results suggest that the photocatalytic activity of ZnO after 45-min reaction time correlates well with the specific surface area, and the number of oxygen vacancies present in the materials. The solubility of flower-like ZnO samples in the dye solution was measured to be 19.2 ppb after 24-h reaction time.
Starting Page	1545
Ending Page	1553
Page Count	9
File Format	PDF
ISSN	09226168
Journal	Research on Chemical Intermediates
Volume Number	39
Issue Number	4
e-ISSN	15685675
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-06-19
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sonochemical method Flower-like ZnO Photocatalytic activity Photostability Photoluminescence Catalysis Physical Chemistry Inorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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