Next Article in Journal
Facile Synthesis of Sulfate-Intercalated CoFe LDH Nanosheets Derived from Two-Dimensional ZIF-9(III) for Promoted Oxygen Evolution Reaction
Previous Article in Journal
Heterogeneous Photocatalysis: A Solution for a Greener Earth
Article

Hollow Nanospheres Organized by Ultra-Small CuFe2O4/C Subunits with Efficient Photo-Fenton-like Performance for Antibiotic Degradation and Cr(VI) Reduction

by 1, 1, 2, 1,* and 3,*
1
School of Material Science and Technology, Jilin Institute of Chemical Technology, Jilin City 132022, China
2
Jilin Petrochemical Company Organic Synthetic Plants, Jilin City 132021, China
3
College of Resources and Environmental Science, South-Central Minzu University, Wuhan 430074, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Natalia Martsinovich
Received: 26 May 2022 / Revised: 15 June 2022 / Accepted: 20 June 2022 / Published: 23 June 2022
(This article belongs to the Special Issue Cutting-Edge Photocatalysis)
Hollow transition metal oxides have important applications in the degradation of organic pollutants by a photo-Fenton-like process. Herein, uniform, highly dispersible hollow CuFe2O4/C nanospheres (denoted as CFO/C-PNSs) were prepared by a one-pot approach. Scanning electron microscope (SEM) and transmission electron microscope (TEM) images verified that the CFO/C-PNS catalyst mainly presents hollow nanosphere morphology with a diameter of 250 ± 30 nm. Surprisingly, the photodegradation test results revealed that CFO/C-PNSs had an excellent photocatalytic performance in the elimination of various organic contaminants under visible light through the efficient Fenton catalytic process. Due to the unique hollow structure formed by the assembly of ultra-small CFO/C subunits, the catalyst exposes more reaction sites, improving its photocatalytic activity. More importantly, the resulting magnetically separable CFO/C-PNSs exhibited excellent stability. Finally, the possible photocatalytic reaction mechanism of the CFO/C-PNSs was proposed, which enables us to have a clearer understanding of the photo-Fenton mechanism. Through a series of characterization and analysis of degradation behavior of CFO/C-PNS samples over antibiotic degradation and Cr(VI) reduction, •OH radicals generated from H2O2 decomposition played an essential role in enhancing the reaction efficiency. The present work offered a convenient method to fabricate hollow transition metal oxides, which provided impetus for further development in environmental and energy applications. Highlights: Novel hollow CuFe2O4/C nanospheres were prepared by a facile and cost-effective method. CuFe2O4/C exhibited excellent photo-Fenton-like performance for antibiotic degradation. Outstanding photocatalytic performance was attributed to the specific hollow cavity-porous structure. A possible mechanism for H2O2 activation over hollow CuFe2O4/C nanospheres was detailed and discussed. View Full-Text
Keywords: hollow CuFe2O4/C nanospheres; photo-Fenton; photodegradation of various pollutants; photocatalytic reaction mechanism hollow CuFe2O4/C nanospheres; photo-Fenton; photodegradation of various pollutants; photocatalytic reaction mechanism
Show Figures

Graphical abstract

MDPI and ACS Style

Sun, D.; Yang, J.; Chen, F.; Chen, Z.; Lv, K. Hollow Nanospheres Organized by Ultra-Small CuFe2O4/C Subunits with Efficient Photo-Fenton-like Performance for Antibiotic Degradation and Cr(VI) Reduction. Catalysts 2022, 12, 687. https://0-doi-org.brum.beds.ac.uk/10.3390/catal12070687

AMA Style

Sun D, Yang J, Chen F, Chen Z, Lv K. Hollow Nanospheres Organized by Ultra-Small CuFe2O4/C Subunits with Efficient Photo-Fenton-like Performance for Antibiotic Degradation and Cr(VI) Reduction. Catalysts. 2022; 12(7):687. https://0-doi-org.brum.beds.ac.uk/10.3390/catal12070687

Chicago/Turabian Style

Sun, Dazhi, Jiayi Yang, Feng Chen, Zhe Chen, and Kangle Lv. 2022. "Hollow Nanospheres Organized by Ultra-Small CuFe2O4/C Subunits with Efficient Photo-Fenton-like Performance for Antibiotic Degradation and Cr(VI) Reduction" Catalysts 12, no. 7: 687. https://0-doi-org.brum.beds.ac.uk/10.3390/catal12070687

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop