Eco-friendly synthesis of a novel magnetic Bi4O5Br2/SrFe12O19 nanocomposite with excellent photocatalytic activity and recyclable performance
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Abstract
Abstract To improve the catalytic activity and recovery efficiency of photocatalysts, the Bi4O5Br2 was decorated on SrFe12O19 via a microemulsion method to synthesize a novel magnetic Bi4O5Br2/SrFe12O19 nanocomposite. The microstructures, morphological characteristics, photoelectrochemical properties, magnetic performance and photocatalytic mechanism of catalysts were investigated by various techniques. The photocatalytic experiments presented that the Bi4O5Br2/SrFe12O19 photocatalyst with 5 wt% of SrFe12O19 has the best capacity for degrading Rhodamine B (RhB). The activity of the photocatalyst was increased by the optimization of energy band structure and the formation of an internal electric field in the type-II heterojunction. Moreover, the h+ and ·O2- were demonstrated to be the primary active constituents in the photocatalytic reaction by the energy-band structure analysis and radical scavenging experiments. The saturated magnetizing strength (Ms) and the recovery rate of composite photocatalyst were 2.76 emu·g−1 and 88.2% respectively, which confirmed that the nanocomposite has excellent magnetic property. Meanwhile, the photodegradation rate was still 84.6% after five circulating tests, which demonstrated that the sample has the superior photo-stability performance. This paper offers a new approach to the synthesis of the composite magnetic photocatalyst based on Bi4O5Br2, and some guidance for the photocatalytic degradation mechanism.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Multiferroics and related materials · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (41)
Show source-provided references
1. Green synthesis using cherry and orange juice and characterization of TbFeO3 ceramic nanostructures and their application as photocatalysts under UV light for removal of organic dyes in water10.1016/j.jclepro.2019.119765 ↗
2. Insights on the role of beta-Bi2O3/Bi5O7NO3 heterostructures synthesized by a scalable solid-state method for the sunlight-driven photocatalytic degradation of dyes10.1016/j.cattod.2017.12.038 ↗
3. Facile fabrication of silver iodide/graphitic carbon nitride nanocomposites by notable photo-catalytic performance through sunlight and antimicrobial activity10.1016/j.jhazmat.2020.122079 ↗
4. Wide spectral degradation of Norfloxacin by Ag@BiPO4/BiOBr/BiFeO3 nano-assembly: elucidating the photocatalytic mechanism under different light sources10.1016/j.jhazmat.2018.10.060 ↗
5. Tuning of metal oxides photocatalytic performance using Ag nanoparticles integration10.1016/j.molliq.2020.113588 ↗
6. Fabrication of Z-scheme MoO3/Bi2O4 heterojunction photocatalyst with enhanced photocatalytic performance under visible light irradiation10.1016/S1872-2067(19)63391-7 ↗
7. Sonocatalytic activity of biochar-supported ZnO nanorods in degradation of gemifloxacin: synergy study, effect of parameters and phytotoxicity evaluation10.1016/j.ultsonch.2019.03.001 ↗
8. In-situ electro-generation and activation of hydrogen peroxide using a CuFeNLDH-CNTs modified graphite cathode for degradation of cefazolin10.1016/j.jenvman.2020.110629 ↗
9. Synthesis of black ultrathin BiOCl nanosheets for efficient photocatalytic H-2 production under visible light irradiation10.1016/j.jpowsour.2015.05.101 ↗
10. Enhanced photocatalytic activities of BiOI/ZnSn(OH)6 composites towards the degradation of phenol and photocatalytic H-2 production10.1016/j.cej.2013.05.086 ↗
11. Enhanced photocatalytic reduction of CO2 to CO over BiOBr assisted by phenolic resin-based activated carbon spheres10.1039/C9RA01329F ↗
12. Novel and simple process for the photocatalytic reduction of CO2 with ternary Bi2O3-graphene-ZnO nanocomposite10.1007/s10854-018-9073-5 ↗
13. Ultrathin Bi4O5Br2 nanosheets for selective photocatalytic CO2 conversion into CO10.1016/j.cej.2018.12.008 ↗
14. Selective photocatalytic oxidation of benzyl alcohol into benzaldehyde with high selectivity and conversion ratio over Bi4O5Br2 nanoflakes under blue LED irradiation10.1016/j.apcatb.2016.12.026 ↗
15. Enhanced visible light photocatalytic performance of a novel heterostructured Bi4O5Br2/Bi24O31Br10/Bi2SiO5 photocatalyst10.1016/j.apcatb.2015.01.037 ↗
16. Facile hydrolysis synthesis of Bi4O5Br2 photocatalyst with excellent visible light photocatalytic performance for the degradation of resorcinol10.1039/C6RA07386G ↗
17. Facile aqueous synthesis of Bi4O5Br2 nanosheets for improved visible-light photocatalytic activity10.1016/j.ceramint.2017.12.168 ↗
18. Facile hydrolysis synthesis of novel Bi4O5Br2 photocatalyst with enhanced visible light photocatalytic activity for the degradation of resorcinol10.1016/j.matlet.2015.12.090 ↗
19. 3D multilayered Bi4O5Br2 nanoshells displaying excellent visible light photocatalytic degradation behaviour for resorcinol10.1049/mnl.2017.0886 ↗
20. Synthesis of belt-like bismuth-rich bismuth oxybromide hierarchical nanostructures with high photocatalytic activities10.1016/j.jcis.2018.09.038 ↗
21. Facile synthesis of Bi12O17Br2 and Bi4O5Br2 nanosheets: in situ DRIFTS investigation of photocatalytic NO oxidation conversion pathway10.1016/S1872-2067(17)62941-3 ↗
22. Rapid microwave synthesis of I-doped Bi4O5Br2 with significantly enhanced visible-light photocatalysis for degradation of multiple parabens10.1016/j.apcatb.2017.06.074 ↗
23. Pd nanoparticle-decorated Bi4O5Br2 nanosheets with enhanced visible-light photocatalytic activity for degradation of Bisphenol A10.1016/j.jphotochem.2018.01.029 ↗
24. Facile construction of the phase junction of BiOBr and Bi4O5Br2 nanoplates for ciprofloxacin photodegradation10.1016/j.mssp.2018.02.034 ↗
25. Solvothermal synthesis of CDs/Bi4O5Br2 nanocomposites with improved visible-light photocatalytic ciprofloxacin (CIP) decontamination10.1016/j.matlet.2019.05.010 ↗
26. Synthesis of Ag/AgBr/Bi4O5Br2 plasmonic heterojunction photocatalysts: elevated visible‐light photocatalytic performance and Z‐scheme mechanism10.1002/cctc.201900529 ↗
27. Hierarchically structured ternary heterojunctions based on Ce3+/Ce4+ modified Fe3O4 nanoparticles anchored onto graphene oxide sheets as magnetic visible-light-active photocatalysts for decontamination of oxytetracycline10.1016/j.jhazmat.2019.05.035 ↗
28. Gd2ZnMnO6/ZnO nanocomposites: green sol-gel auto-combustion synthesis, characterization and photocatalytic degradation of different dye pollutants in water10.1016/j.jallcom.2020.155240 ↗
29. Eco-friendly green synthesis of novel magnetic Fe3O4/SiO2/ZnO-Pr6O11 nanocomposites for photocatalytic degradation of organic pollutant10.1016/j.jre.2019.07.004 ↗
30. Solar light assisted degradation of oxytetracycline from water using Bi2O3/Fe3O4 supported graphitic carbon nitride photocatalyst10.5004/dwt.2019.23831 ↗
31. Magnetically recyclable Fe3O4@SiO2/Bi2WO6-xF2x photocatalyst with well-designed core-shell nanostructure for the reduction of Cr (VI)10.1016/j.cej.2019.04.037 ↗
32. Magnetically separable indium doped ZnS-NiFe2O4 heterostructure photocatalyst for mineralization of acid violet 7 dye10.1016/j.matchemphys.2018.09.032 ↗
33. Magnetic parameters of SrFe12O19 sintered from a mixture of nanocrystalline and micron-sized powders10.1016/j.ceramint.2019.04.023 ↗
34. A novel magnetic heterojunction photocatalyst TiO2/SrFe12O19: synthesis strategy, photocatalytic activity, and unprecedented migration mechanism of photoexcited charge carrier10.1080/10667857.2018.1483307 ↗
35. C.X. Cui, L.J. Xu, T.P. Xie, et al., Synthesis and photocatalytic activity of magnetic heterostructure ZnFe2O4-SrFe12O19, Mater. Technol.. 31 (216) 454-462.10.1080/10667857.2015.1105578 ↗
36. Tl4CdI6 nanostructures: facile sonochemical synthesis and photocatalytic activity for removal of organic dyes10.1021/acs.inorgchem.8b01293 ↗
37. A new nickel-based co-crystal complex electrocatalyst amplified by NiO dope Pt nanostructure hybrid; a highly sensitive approach for determination of cysteamine in the presence of serotonin10.1038/s41598-020-68663-2 ↗
38. Fabrication of ternary Ag3PO4/Co3(PO4)2/g-C3N4 heterostructure with following Type II and Z-Scheme dual pathways for enhanced visible-light photocatalytic activity10.1016/j.jhazmat.2019.121907 ↗
39. Rapid toxicity elimination of organic pollutants by the photocatalysis of environment-friendly and magnetically recoverable step-scheme SnFe2O4/ZnFe2O4 nano-heterojunctions10.1016/j.cej.2019.122264 ↗
40. Bi4O5Br2 ultrasmall nanosheets in situ strong coupling to MWCNT and improved photocatalytic activity for tetracycline hydrochloride degradation10.1016/j.molcata.2016.08.029 ↗
41. New application of Z-scheme Ag3PO4/g-C3N4 composite in converting CO2 to fuel10.1021/es5046309 ↗