Synthesis of magnetic graphene oxide–TiO2 and their antibacterial properties under solar irradiation
Source abstract
Abstract
Abstract Titanium dioxide (TiO 2 ) has been intensively researched and increasingly used as antibacterial agent, but it suffers from separation inconvenience. Its effective removal from water after reaction while maintaining its high antibacterial activity becomes necessary. In this work, it was the first time the magnetic graphene oxide–TiO 2 (MGO–TiO 2 ) composites were prepared through a simple synthesis method. The results indicated that MGO–TiO 2 exhibited a good antibacterial activity against Escherichia coli . MGO–TiO 2 was found to almost completely inactivate the E. coli within 30 min under solar irradiation. The effect of inorganic ions present in E. coli suspension was also evaluated. Compared with other ions, HCO 3 − and HPO 4 2− had a greater influence on the antibacterial property.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Graphene and Nanomaterials Applications · Nanoparticles: synthesis and applications · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. Multifunctional graphene oxide–TiO(2)–Ag nanocomposites for high performance water disinfection and decontamination under solar irradiation10.1016/j.jhazmat.2013.07.034 ↗
2. Highly efficient and stable Ag-AgBr/TiO2 composites for destruction of Escherichia coli under visible light irradiation10.1016/j.watres.2012.11.057 ↗
3. Highly photoactive, low bandgap TiO2 nanoparticles wrapped by graphene10.1002/adma.201104110 ↗
4. Ag-decorated TiO2 photocatalytic membrane with hierarchical architecture: photocatalytic and anti-bacterial activities10.1016/j.watres.2014.04.025 ↗
5. The application of titanium dioxide for deactivation of bioparticulates: an overview10.1016/j.cattod.2010.11.055 ↗
6. Concurrent filtration and solar photocatalytic disinfection/degradation using high-performance Ag/TiO2 nanofiber membrane10.1016/j.watres.2011.12.009 ↗
7. Oxidative stress-mediated antibacterial activity of graphene oxide and reduced graphene oxide in Pseudomonas aeruginosa10.2147/IJN.S37397 ↗
8. Genotoxic evaluation of titanium dioxide nanoparticles in vivo and in vitro10.1016/j.toxlet.2014.02.020 ↗
9. Magnetic nanoparticles: essential factors for sustainable environmental applications10.1016/j.watres.2013.02.039 ↗
10. Relation between the redox state of iron-based nanoparticles and their cytotoxicity toward Escherichia coli10.1021/es800086f ↗
11. Inactivation performance and mechanism of Escherichia coli in aqueous system exposed to iron oxide loaded graphene nanocomposites10.1016/j.jhazmat.2014.05.011 ↗
12. Weaker masturbatory erection may be a sign of early cardiovascular risk associated with erectile dysfunction in young men without sexual intercourse10.1111/jsm.12460 ↗
13. Removal of microcystin-LR and microcystin-RR by graphene oxide: adsorption and kinetic experiments10.1016/j.watres.2013.04.033 ↗
14. Reducing the Fault Current and Overvoltage in a Distribution System With Distributed Generation Units Through an Active Type SFCL
15. A novel nanocomposite based on TiO2/Cu2O/reduced graphene oxide with enhanced solar-light-driven photocatalytic activity10.1016/j.apsusc.2014.10.105 ↗
16. Microwave absorption properties of double-layer composites using CoZn/NiZn/MnZn-ferrite and titanium dioxide10.1016/j.jmmm.2014.10.059 ↗
17. Simultaneous removal of Cd(II) and ionic dyes from aqueous solution using magnetic graphene oxide nanocomposite as an adsorbent10.1016/j.cej.2013.04.045 ↗
18. Anchoring a uniform TiO2 layer on graphene oxide sheets as an efficient visible light photocatalyst10.1016/j.apsusc.2013.05.143 ↗
19. Copper (II) removal by pectin–iron oxide magnetic nanocomposite adsorbent10.1016/j.cej.2012.01.050 ↗
20. Antibacterial activity of graphite, graphite oxide, graphene oxide, and reduced graphene oxide: membrane and oxidative stress10.1021/nn202451x ↗
21. Sulfonated graphene oxide–ZnO–Ag photocatalyst for fast photodegradation and disinfection under visible light10.1016/j.jhazmat.2013.09.055 ↗
22. High antibacterial activity of ultrafine TiO2/graphene sheets nanocomposites under visible light irradiation10.1016/j.matlet.2012.11.136 ↗
23. Virus inactivation by silver doped titanium dioxide nanoparticles for drinking water treatment10.1016/j.watres.2010.09.012 ↗
24. Different inactivation behaviors of MS-2 phage and Escherichia coli in TiO2 photocatalytic disinfection10.1128/AEM.71.1.270-275.2005 ↗
25. Photocatalytic disinfection of water with Ag–TiO2 nanocrystalline composite10.1007/s11581-008-0304-2 ↗
26. Biological approach to synthesize TiO2 nanoparticles using Aeromonas hydrophila and its antibacterial activity10.1016/j.saa.2012.12.083 ↗
27. Effect of pH, inorganic ions, organic matter and H2O2 on E. coli K12 photocatalytic inactivation by TiO2 – implications in solar water disinfection10.1016/j.apcatb.2004.03.007 ↗
28. Effect of chloride ions on 4-chlorophenol photodegradation in the absence and presence of titanium silicalite-210.1016/S1010-6030(00)00327-0 ↗
29. Visible light photocatalytic inactivation of Escherichia coli with combustion synthesized TiO210.1016/j.cej.2012.02.036 ↗
30. Photocatalytic inactivation of E. coli in surface water using immobilised nanoparticle TiO2 films10.1016/j.watres.2008.10.015 ↗
31. Intracellular Ca2+ concentration change of T24 cell under irradiation in the presence of TiO2 ultrafine particles10.1016/0304-4165(94)90049-3 ↗
32. Bactericidal mode of titanium dioxide photocatalysis10.1016/S1010-6030(99)00205-1 ↗
33. Mode of photocatalytic bactericidal action of powdered semiconductor TiO2 on mutans streptococci10.1016/1011-1344(92)85115-B ↗