MgZnFeAlLDHs nanoarchitectonics for photocatalytic removal of some organic pollutants by using solar irradiation
by C. Magda Puscasu; Gabriela Carja; Carmen Zaharia
International Journal of Materials and Product Technology (IJMPT), Vol. 51, No. 3, 2015

Abstract: A growing interest exists nowadays to develop new photocatalysts able to use the light energy for removing organic pollutants from wastewaters. This work reports the synthesis and characterisation of the MgZnFeAl layered double hydroxides (MgZnFeAl/LDHs) as novel photocatalysts for the degradation of two industrial dyes, Nylosan Navy (Nyl) and drimaren red (DR), using solar irradiation. The dye degradation pathway was rationalised using UV-Vis spectroscopy. The advantage of using LDHs consists mainly in the versatility of the brucite-like sheets composition which may allow the insertion of a tailored diversity of cations within the LDH layered network (e.g., Mg²⁺, Zn²⁺, and also Fe³⁺, Al³⁺). The LDHs materials can supply a good dispersion of the metal cations within the layers which may act as charge separation centres enhancing the photocatalyst efficiency. The results indicate that the photocatalytic degradation of dye is a function of the composition of anionic clay matrix. The highest catalytic efficiency was obtained for a composition of catalysts defined by the molar ratio of Mg:Zn:Fe:Al equal to 1.5:1.5:1:0.5.

Online publication date: Tue, 06-Oct-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials and Product Technology (IJMPT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com