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Catalysts 2017, 7(11), 349; doi:10.3390/catal7110349

Synergistic Enhancement in Catalytic Performance of Superparamagnetic Fe3O4@Bacilus subtilis as Recyclable Fenton-Like Catalyst

1,* , 2
and
1,3
1
College of Geography and Environment, Baoji University of Arts and Sciences, Baoji 721013, China
2
College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
3
Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Chang’an University, Xi’an 710064, China
*
Author to whom correspondence should be addressed.
Received: 27 August 2017 / Revised: 2 October 2017 / Accepted: 3 October 2017 / Published: 20 November 2017
(This article belongs to the Special Issue Magnetic Nanocatalysts)
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Abstract

Novel well-defined superparamagnetic Fe3O4@Bacilus subtilis composite (Fe3O4@B. subtilis SPMC) was synthesized through a facile electrostatic attraction method and used as a recyclable heterogeneous Fenton-like catalyst. With the presence of H2O2, Fe3O4@B. subtilis SPMC can remove nearly 87% of the doxycycline at the initial concentration of 50 mg L−1, exhibiting enhanced Fenton-like catalytic performance than pristine Fe3O4. The mechanism study demonstrates the synergistic effect between Bacilus subtilis adsorption and Fenton-like ability of Fe3O4 dominates the enhancement for Fenton-like catalytic efficiency of Fe3O4@B. subtilis SPMC. The obtained composite shows excellent recycling ability, reusability, and stability, which pave a new way for future design on highly efficient Fenton-like catalyst for degradation of organic pollutants. View Full-Text
Keywords: Fe3O4; Bacilus subtilis; synergistic effect; Fenton-like; recyclable; superparamagnetic Fe3O4; Bacilus subtilis; synergistic effect; Fenton-like; recyclable; superparamagnetic
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zheng, P.; Pan, Z.; Zhang, J. Synergistic Enhancement in Catalytic Performance of Superparamagnetic Fe3O4@Bacilus subtilis as Recyclable Fenton-Like Catalyst. Catalysts 2017, 7, 349.

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