Divalent silver oxide-diatomite hybrids: Synthesis, characterization and antibacterial activity
Source abstract
Abstract
Abstract To produce better antibacterial and low water-soluble submicron powders of divalent silver oxide (AgO), divalent silver oxide-diatomite (AgO-d) hybrids were studied. AgO-d hybrids were prepared by chemical oxidation, using silver nitrate and diatomite as raw materials and potassium persulfate as oxidant. The results show that AgO-d hybrids with AgO weight percentage up to 20.8% are obtained by oxidation of Ag + adsorbing on diatomite in alkaline solution ( n (KOH)/ n (AgNO 3 )=7.5) for 1.5 h at 333.15 K. Products were characterized by laser particle sizer, SEM, XRD, XPS, FT-IR and atomic absorption spectrophotometer (AAS). AgO-d hybrids are composed of tetragonal cristobalite, amorphous silica, monoclinic divalent silver oxide and a few of cubic silver oxide. Element Ag can be released from AgO-d hybrids but the dissolution speed is slow, which is about 3.20×10 −2 mg (L h) −1 . Antibacterial effectiveness of AgO-d hybrids was tested against Staphylococcus aureus ( S. aureus ATCC6538) and Escherichia coli ( E. coli ATCC8099) by the shake-flask method. Results show that AgO-d hybrids possess excellent antibacterial properties. When the concentration of AgO-d hybrids is 10 mg L −1 and the contact time with S. aureus and E. coli is 30 min, the bactericidal rates reach up to 99.974% and 99.944%, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanoparticles: synthesis and applications · Laser-Ablation Synthesis of Nanoparticles · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. The study of antimicrobial activity and preservative effects of nanosilver ingredient10.1016/j.electacta.2005.04.071 ↗
2. Advantages of nano-silver-carbon covered alumina catalyst prepared by electro-chemical method for drinking water purification10.1016/j.molcata.2006.10.019 ↗
3. Fabrication of antibacterial monodispersed Ag–SiO2 core-shell nanoparticles with high concentration10.1016/j.matlet.2008.08.039 ↗
4. Silver nanoparticles as antimicrobial agent: a case study on E. coli as a model for Gram-negative bacteria10.1016/j.jcis.2004.02.012 ↗
5. Green synthesis of finely-dispersed highly bactericidal silver nanoparticles via modified Tollens technique10.1016/j.cap.2009.10.021 ↗
6. Mechanism of action of coumarin and silver(I)-coumarin complexes against the pathogenic yeast Candida albicans10.1016/j.tiv.2007.01.022 ↗
7. Colloidal silver fabrication using the spark discharge system and its antimicrobial effect on Staphylococcus aureus10.1016/j.medengphy.2007.10.007 ↗
8. Performance and characterization of Ag-cotton and Ag/TiO2 loaded textiles during the abatement of E. coli10.1016/j.jphotochem.2005.12.020 ↗
9. In vitro fungistatic and fungicidal activities of silver sulfadiazine and natamycin on pathogenic fungi isolated from horses with keratomy cosis10.2460/ajvr.67.10.1788 ↗
10. Antifungal activity of silver nanoparticles against Candida spp.10.1016/j.biomaterials.2009.07.065 ↗
11. Interaction of colloidal AgTiO2 nanoparticles with bovine serum albumin10.1016/j.poly.2008.09.023 ↗
12. Interaction of silver nanoparticles with HIV-110.1186/1477-3155-3-6 ↗
13. Silver nanoparticle in hyperbranched polyamine: Synthesis, characterization and antibacterial activity10.1016/j.matchemphys.2008.07.047 ↗
14. Antibacterial effect of silver nanoparticles on Staphylococcus aureus10.1016/j.resmic.2011.04.009 ↗
15. Facile synthesis of Ag nanoparticles supported on MWCNTs with favorable stability and their bactericidal properties10.1016/j.jhazmat.2011.01.050 ↗
16. Immobilization of silver nanoparticles synthesized using Curcuma longa tuber powder and extract on cotton cloth for bactericidal activity10.1016/j.biortech.2010.05.051 ↗
17. Polymeric microspheres containing silver nanoparticles as a bactericidal agent for water disinfection10.1016/j.watres.2010.06.057 ↗
18. Synthesis, characterization and microbiological response of silver doped bioactive glass nanoparticles10.1016/j.ceramint.2011.05.158 ↗
19. Study on the preparation and properties of silver-doped phosphate antibacterial glasses10.1016/j.solidstatesciences.2011.02.004 ↗
20. Antibacterial behavior of silver-modified clinoptilolite-heulandite rich tuff on coliform microorganisms from wastewater in a column system10.1016/j.jenvman.2007.04.005 ↗
21. Nanostructured high valence silver oxide produced by pulsed laser deposition10.1016/j.apsusc.2008.07.170 ↗
22. Molecular design, crystal structure, molecular design, crystal structure, antimicrobial activity and reactivity of light-stable and water-soluble Ag-O bonding silver(I) complexes, dinuclear silver(I) N-acetylglycinate10.1016/j.ica.2006.06.037 ↗
23. Antibacterial property of Ag2O films vacuum-deposited on high density polyethylene substrates
24. Ultrafine silver(II) oxide particles decorated porous ceramic composites for water treatment10.1016/j.cej.2011.09.121 ↗
25. Comparison of silver-coated dressing (Acticoat™), chlorhexidine acetate 0.5% (Bactigrass), and fusidic acid 2% (Fucidin)10.1016/j.burns.2005.05.002 ↗
26. An in vitro assessment of the antibacterial properties and cytotoxicity of nanoparticulate silver bone cement10.1016/j.biomaterials.2003.10.078 ↗
27. Silver-coated megaendoprostheses in a rabbit model-an analysis of the infection rate and toxicological side effects10.1016/j.biomaterials.2004.01.008 ↗
28. Effect of silver-coated urinary catheters: efficacy, cost-effectiveness, and antimicrobial resistance10.1016/j.ajic.2004.05.002 ↗
29. Bacteriosis and skin innoxiousness of nanosize silver colloids on textile10.1177/0040517505053952 ↗
30. M.S. Antelman, Divalent silver oxide bactericides, United States Patent US005098582A.
31. Ultrafine silver peroxide powders prepared by ozone oxidization method and its antibacterial property
32. Bactericidal effects of different silver-containing materials10.1016/j.materresbull.2011.06.041 ↗
33. The preparation of the dispersed liquid of nanometer bivalent silver oxide
34. Synthesis and characterization of antibacterial AgSiO2 nanocomposite10.1021/jp068302w ↗
35. Remediation of wastewater containing heavy metals using raw and modified diatomite10.1016/j.cej.2003.11.029 ↗
36. Flow injection potentiometric stripping analysis for study of adsorption of heavy metal ions onto modified diatomite10.1016/j.cej.2004.07.010 ↗
37. Layer-by-layer assembly of TiO2 colloids onto diatomite to build hierarchical porous materials10.1016/j.jcis.2008.04.020 ↗
38. Bentonites impregnated with TiO2 for photodegradation of methylene blue10.1016/j.clay.2010.03.010 ↗
39. Ag colloids and Ag clusters over EDAPTMS-coated silica nanoparticles: synthesis, characterization, and antibacterial activity against Escherichia coli10.1016/j.nano.2010.11.003 ↗
40. Study on assay method of silver peroxide
41. Dong · 2005
42. Preparation of manganese oxides-modified diatomite and its adsorption performance for dyes
43. M.S. Antelman, Method of treating water employing tetrasilver tetroxide crystals, United States Patent US005211855A.
44. An esca study of termination of the passivation of elemental metals10.1021/j100505a006 ↗
45. Wagner · 1979
46. Photoemission investigation of silver/poly(ethylene terephthalate) interfacial chemistry: the effect of oxygen-plasma treatment10.1116/1.576480 ↗
47. X-ray photoelectron spectroscopic studies of cadmium and silver-oxygen surface10.1021/ac60363a019 ↗
48. Electronic structure of Ag2O10.1103/PhysRevB.41.3190 ↗
49. Briggs · 1993
50. Characterization and coagulation performance of a novel inorganic polymer coagulant-poly-zinc-silicate–sulfate10.1016/j.colsurfa.2008.10.009 ↗
51. The separation of uranium ions by natural and modified diatomite from aqueous solution10.1016/j.jhazmat.2010.05.069 ↗
52. Synthesis of raspberry-like monodisperse magnetic hollow hybrid nanospheres by coating polystyrene template with Fe3O4@SiO2 particles10.1016/j.jcis.2010.09.078 ↗
53. Obtention of selective membranes for water and hydrophobic liquids by plasma enhanced chemical vapor deposition on porous substrates10.1016/j.mseb.2004.05.026 ↗
54. Reaction mechanism between Zn2+ and diatomite in preparation of Zn2+/diatomite antibacterial agent10.4028/www.scientific.net/MSF.685.260 ↗