NDLI: Decoloration of Acid Red 88 Using Synthetic-Zeolite-Based Iron as a Heterogeneous Photo-Fenton Catalyst

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Decoloration of Acid Red 88 Using Synthetic-Zeolite-Based Iron as a Heterogeneous Photo-Fenton Catalyst

Content Provider	Semantic Scholar
Author	Ohura, Seiichirou Harada, Hiroyuki Shiki, Masahiko Kawakita, Hidetaka Biswas, Biplob Kumar
Copyright Year	2012
Abstract	Decoloration and mineralization of an azo dye, Acid Red 88, were conducted using synthetic-zeolite-based Fe as a heterogeneous photo-Fenton catalyst in the presence of ultraviolet (UV) rays and H 2 O 2 . Under the optimal conditions (pH = 5.5, 17.6 mM H 2 O 2 , and 4 W m - 2 UVC), 100% decoloration and 90% total organic carbon removal of 0.12 mM Acid Red 88 were achieved in 120 min. The effects of initial pH with time, as well as oxidation, were studied in a batch reactor. It was found that high decoloration was achieved using a heterogeneous Fenton method at pH 7 and lower. The catalyst also had the advantages of low leaching of Fe 3+ ions and maintenance of a high decoloration in consecutive catalytic treatments. Zeolite-based Fe was successfully used repeatedly (up to three consecutive cycles) for decoloration. A high rate of decoloration was also achieved in the case of continuous operation, although <=0.4 mg L -1 of Fe were leached into the treated water.
Starting Page	36
Ending Page	36
Page Count	1
File Format	PDF HTM / HTML
DOI	10.5539/ep.v2n1p36
Volume Number	2
Alternate Webpage(s)	https://www.pu-hiroshima.ac.jp/~ho-harada/Layout-EP%20(2).pdf
Alternate Webpage(s)	http://www.ccsenet.org/journal/index.php/ep/article/download/21551/14044/
Alternate Webpage(s)	https://doi.org/10.5539/ep.v2n1p36
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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