Visible light photocatalytic disinfection of E. coli with TiO 2 –graphene nanocomposite sensitized with tetrakis(4-carboxyphenyl)porphyrin
Source abstract
Abstract
Abstract The present research deals with the development of a new heterogeneous photocatalysis system for disinfection of bacteria from wastewater by using TiO2–graphene (TG) nanocomposite sensitized with tetrakis(4-carboxyphenyl)porphyrin (TCPP). The disinfection of wastewater using this photocatalyst is not reported in the literature yet. All the synthesized materials were thoroughly characterized by Raman, XRD, DRS, BET, and SEM analysis. The optimum content of graphene in the TiO2–graphene nanocomposite was determined by photocurrent responses of prepared photocatalysts. Subsequently, the photocurrent measurements demonstrate that the TiO2–graphene nanocomposite with 3% graphene content has higher photoactivity. Furthermore, sensitization of the TiO2–graphene nanocomposite with porphyrin (TGP) is successfully capable to develop a new type of photocatalyst system for disinfection of bacteria with moderate to high yields in visible light irradiation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Graphene and Nanomaterials Applications · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Preparation of CN-dots/F-NiO nanocomposite for enhanced photocatalytic degradation of selected organic pollutants10.1016/j.apsusc.2014.11.042 ↗
2. Cu doped TiO2/GF for photocatalytic disinfection of Escherichia coli in bioaerosols under visible light irradiation: application and mechanism10.1016/j.apsusc.2014.01.006 ↗
3. Comparison of different disinfection processes in the effective removal of antibiotic-resistant bacteria and genes10.1016/S1001-0742(13)60594-X ↗
4. Effective water disinfection using silver nanoparticle containing silica beads10.1016/j.apsusc.2012.11.168 ↗
5. Photocatalytic TiO2 nanoparticles enhanced polymer antimicrobial coating10.1016/j.apsusc.2013.11.067 ↗
6. Solar light and metal-doped TiO2 to eliminate water-transmitted bacterial pathogens: photocatalyst characterization and disinfection performance
7. Double-doped TiO2 nanoparticles as an efficient visible-light-active photocatalyst and antibacterial agent under solar simulated light10.1016/j.apsusc.2014.02.074 ↗
8. Preparation, characterization, and photocatalytic properties of silver carbonate10.1016/j.apsusc.2011.05.060 ↗
9. N-modified TiO2 photocatalytic activity towards diphenhydramine degradation and Escherichia coli inactivation in aqueous solutions10.1016/j.apcatb.2014.06.017 ↗
10. Surface modification of TiO2 photocatalyst for environmental applications10.1016/j.jphotochemrev.2012.10.001 ↗
11. Synthesis of C, Ag co-modified TiO2 photocatalyst and its application in waste water purification10.1016/j.apsusc.2013.01.181 ↗
12. TiO2 based photocatalytic membranes10.1016/j.memsci.2014.08.016 ↗
13. Cu2O nanoparticles decorated BiVO4 as an effective visible-light-driven p–n heterojunction photocatalyst for methylene blue degradation10.1016/j.spmi.2014.07.003 ↗
14. Fabrication of Ag3PO4–graphene composites with highly efficient and stable visible light photocatalytic performance10.1021/cs3008126 ↗
15. A new approach to the preparation of nitrogen-doped titania visible light photocatalyst10.1021/cm203848f ↗
16. Photostable self-cleaning cotton by a copper(II) porphyrin/TiO2 visible-light photocatalytic system10.1021/am400002k ↗
17. Investigation of the anchoring silane coupling reagent effect in porphyrin sensitized mesoporous V-TiO2 on the photodegradation efficiency of methyl orange under visible light irradiation10.1007/s10971-012-2954-9 ↗
18. Degradation of methylene blue via Co–TiO2 nano powders modified by meso-tetra(carboxyphenyl)porphyrin10.1007/s10971-012-2733-7 ↗
19. Bactericidal effects of hematoporphyrin monomethyl ether-mediated photosensitization against pathogenic communities from supragingival plaque10.1007/s00253-013-4903-0 ↗
20. Synthesis of Sn-porphyrin-intercalated trititanate nanofibers: optoelectronic properties and photocatalytic activities10.1021/cm0629863 ↗
21. Enhanced photodynamic efficiency achieved via a dual-targeted strategy based on photosensitizer/micelle structure10.1021/bm501270e ↗
22. Antibacterial photodynamic therapy in dermatology10.1039/b407622b ↗
23. Graphene as transparent conducting electrodes in organic photovoltaics: studies in graphene morphology, hole transporting layers, and counter electrodes10.1021/nl2029859 ↗
24. Synthesis and photocatalytic activity of graphene based doped TiO2 nanocomposites10.1016/j.apsusc.2014.04.182 ↗
25. Solar photocatalytic disinfection of water using titanium dioxide graphene composites10.1016/j.cej.2014.06.089 ↗
26. Photocatalytic reduction of graphene oxide nanosheets on TiO2 thin film for photoinactivation of bacteria in solar light irradiation10.1021/jp906325q ↗
27. Preparation of graphitic oxide10.1021/ja01539a017 ↗
28. Photocatalytic activity of novel tin porphyrin/TiO2 based composites10.1021/jp911744a ↗
29. Melatonin as a powerful bio-antioxidant for reduction of graphene oxide10.1039/c1jm10151j ↗
30. Synthesis of graphene nanosheets via oxalic acid-induced chemical reduction of exfoliated graphite oxide10.1039/C1RA00934F ↗
31. Sonochemical synthesis of TiO2 nanoparticles on graphene for use as photocatalyst preparation of graphitic oxide10.1016/j.ultsonch.2011.03.021 ↗
32. Solar cell efficiency tables10.1002/pip.1021 ↗
33. One-step synthesis of easy-recycling TiO2–rGO nanocomposite photocatalysts with enhanced photocatalytic activity10.1016/j.apcatb.2012.12.009 ↗
34. Comparison of photocatalysis degradation of 4-nitrophenol using N,S co-doped TiO2 nanoparticles synthesized by two different routes10.1007/s10971-012-2823-6 ↗
35. In situ generation of palladium oxide nano-crystals10.1016/j.jorganchem.2009.01.037 ↗
36. Size controlled synthesis of gold nanoparticles by porphyrin with four sulfur atoms10.1007/s11244-009-9229-x ↗
37. Comparing graphene–TiO2 nanowire and graphene–TiO2 nanoparticle composite photocatalysts10.1021/am300772t ↗
38. Sensitive efficiency of photoinduced electron transfer to band gaps of semiconductive single-walled carbon nanotubes with supramolecularly attached zinc porphyrin bearing pyrene glues10.1021/ja101776p ↗
39. Photocatalytic decomposition of hexachlorobenzene on nano-titanium dioxide films – experimental study and mechanistic considerations