Bismuth-Doped Nano Zerovalent Iron: A Novel Catalyst for Chloramphenicol Degradation and Hydrogen Production - Publication - Bridge of Knowledge

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Bismuth-Doped Nano Zerovalent Iron: A Novel Catalyst for Chloramphenicol Degradation and Hydrogen Production

Abstract

In this study, we showed that doping bismuth (Bi) at the surface of Fe0 (Bi/Fe0, bimetallic iron system)—synthesized by a simple borohydride reduction method—can considerably accelerate the reductive degradation of chloramphenicol (CHP). At a reaction time of 12 min, 62, 68, 74, 95, and 82% degradation of CHP was achieved with Fe0, Bi/Fe0-1 [1% (w/w) of Bi], Bi/Fe0-3 [3% (w/w) of Bi], Bi/Fe0-5 [5% (w/w) of Bi], and Bi/Fe0-8 [8% (w/w) of Bi], respectively. Further improvements in the degradation efficiency of CHP were observed by combining the peroxymonosulfate (HSO5–) with Bi/Fe0-5 (i.e., 81% by Bi/Fe0-5 and 98% by the Bi/Fe0-5/HSO5– system at 8 min of treatment). Interestingly, both Fe0 and Bi/Fe0-5 showed effective H2 production under dark conditions that reached 544 and 712 μM by Fe0 and Bi/Fe0-5, respectively, in 70 mL of aqueous solution containing 0.07 g (i.e., at 1 g L–1 concentration) of the catalyst at ambient temperature.

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Copyright (2020 American Chemical Society)

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
ACS Omega no. 5, pages 30610 - 30624,
ISSN: 2470-1343
Language:
English
Publication year:
2020
Bibliographic description:
Sayed M., Khan A., Rauf S., Shah N., Rehman F., A. Al-Kahtani A., Khan J., Iqbal J., Boczkaj G., Gul I., Bushra M.: Bismuth-Doped Nano Zerovalent Iron: A Novel Catalyst for Chloramphenicol Degradation and Hydrogen Production// ACS Omega -Vol. 5,iss. 47 (2020), s.30610-30624
DOI:
Digital Object Identifier (open in new tab) 10.1021/acsomega.0c04574
Verified by:
Gdańsk University of Technology

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