NDLI: Enhanced Photocatalytic Degradation of Reactive Dyes over FeTiO$_{3}$/TiO$_{2}$ Heterojunction in the Presence of H$_{2}$O$

Content Provider	Springer Nature Link
Author	Sivakumar, Santhanam Selvaraj, Ayyasamy Ramasamy, Anaipalayam Kandasamy Balasubramanian, Vadivelu
Copyright Year	2013
Abstract	In this work, photocatalytic degradation of two reactive dyes, Reactive Yellow 84 (RY 84) and Reactive Black 5 (RB 5), on FeTiO$_{3}$/TiO$_{2}$ heterojunction in the presence of UV–visible radiation and H$_{2}$O$_{2}$ has been reported. FeTiO$_{3}$/TiO$_{2}$ heterojunction has been prepared from ilmenite FeTiO$_{3}$ and anatase TiO$_{2}$ by employing oxalic acid as an organic linker. FeTiO$_{3}$/TiO$_{2}$ ratios have been varied from 1 to 5 wt.%, and the materials were characterized by X-ray diffraction, scanning electron microscope and diffused reflectance UV–visible spectroscopic analysis. The photocatalytic activity of FeTiO$_{3}$/TiO$_{2}$ heterojunction for the degradation of the organic dyes RY 84 and RB 5 in the presence of UV–visible light was found to be higher than that of pure TiO$_{2}$. The addition of H$_{2}$O$_{2}$ increases the rate of degradation of both dyes on FeTiO$_{3}$/TiO$_{2}$ heterojunction. It facilitates the fast degradation of dye solutions even when their concentration was above 100 mg/l, which is otherwise very slow due to the low transmittance of light by the dye solution. The extent of mineralisation of the reactive dye during photocatalytic degradation was estimated from chemical oxygen demand analysis. FeTiO$_{3}$/TiO$_{2}$ heterojunction photocatalyst was also found to have good photostability; the material retains almost 97 % of its initial activity even in the fifth cycle.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	224
Issue Number	5
e-ISSN	15732932
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-04-03
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Heterojunction Photocatalyst Reusability Reactive dyes UV–visible light Environment Atmospheric Protection/Air Quality Control/Air Pollution Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Soil Science & Conservation Hydrogeology Climate Change
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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