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Iron impregnated biochars as heterogeneous Fenton catalyst for the degradation of acid red 1 dye

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Title Iron impregnated biochars as heterogeneous Fenton catalyst for the degradation of acid red 1 dye
 
Creator Rubeena, K.K.
Hari Prasad Reddy, P.
Laiju, A.R.
Nidheesh, P. V.
 
Subject Industrial Wastewater Treatment & Disposal
Environmental Engineering
Waste Water Treatment
 
Description In the present work, Acid Red 1 (AR1) dye degradation by two heterogeneous Fenton catalysts, namely iron
loaded rice husk biochar (Fe-RHB) and coir pith biochar (Fe-CPB) are studied. Biochar prepared from RHB and
CPB were sonicated in the presence of ferric nitrate for the synthesis of Fe-RHB and Fe-CPB by incipient impregnation method. Effect of operational parameters such as pH, the dosage of catalyst, H2O2 concentration and
temperature were examined. Characterization of the synthesized Fenton catalyst, Fe-RHB and Fe-CPB were
analysed by SEM, EDS, XRD and XPS techniques. In Fe-RHB Fenton system, maximum dye removal efficiency of
97.6% and TOC removal efficiency of 84.2% were obtained at pH 3 for 50 mg L−1 of AR1 concentration, with
16 mM of H2O2 and 5 g L−1 of catalyst dosage within 120 min reaction time. Similarly, for Fe-CPB, maximum
dye removal efficiency of 99.1% and TOC removal efficiency of 86.7% were obtained with 16 mM of H2O2 and
4gL−1 of dosage for 50 mg L−1 of initial dye concentration at pH 3. The prepared catalysts can be reused for
successive cycles as the catalyst materials are highly stable and have very less iron leaching property.
 
Publisher Elsevier
 
Date 2018
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/1264/1/2018%20Rubeena%20J%20Env%20Management.pdf
Rubeena, K.K. and Hari Prasad Reddy, P. and Laiju, A.R. and Nidheesh, P. V. (2018) Iron impregnated biochars as heterogeneous Fenton catalyst for the degradation of acid red 1 dye. Journal of Environmental Management, 226. pp. 320-328. ISSN 03014797
 
Relation http://dx.doi.org/10.1016/j.jenvman.2018.08.055
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