Export file:

Format

  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text

Content

  • Citation Only
  • Citation and Abstract

Inactivation of Bacterial Spores and Vegetative Bacterial Cells by Interaction with ZnO-Fe2O3 Nanoparticles and UV Radiation

1 Department of Chemical and Biological Sciences. Sciences School. Universidad de las Américas Puebla. Ex-Hacienda de Santa Catarina Mártir. C.P. 72810. Cholula, Puebla, México
2 Division of Hydrologic Sciences, Desert Research Institute. Las Vegas, Nevada, USA

Special Issues: Water for an increasing population in a changing climate

ZnO-Fe2O3 nanoparticles (ZnO-Fe NPs) were synthesized and characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and dynamic light scattering (DLS). The generation of chemical reactive hydroxyl radicals (OH) was measured spectrophotometrically (UV-Vis) by monitoring of p-nitrosodimethylaniline (pNDA) bleaching. Inactivation of E. coli and B. subtilis spores in the presence of different concentrations of ZnO-Fe NPs, under UV365nm or visible radiation, was evaluated. We observed the best results under visible light, of which inactivation of E. coli of about 90% was accomplished in 30 minutes, while B. subtilis inactivation close to 90% was achieved in 120 minutes. These results indicate that the prepared photocatalytic systems are promising for improving water quality by reducing the viability of water-borne microorganisms, including bacterial spores.
  Figure/Table
  Supplementary
  Article Metrics

Keywords Drinking water; nanoparticles; photocatalysis; hydroxyl radicals; zinc oxide; iron oxide; Bacterial inactivation; Bacterial spore inactivation

Citation: José Luis Sánchez-Salas, Alejandra Aguilar Ubeda,Beatriz Flores Gómez, Oscar Daniel Máynez Navarro, Miguel Ángel Méndez Rojas, Silvia Reyna Tellez, Erick R. Bandala. Inactivation of Bacterial Spores and Vegetative Bacterial Cells by Interaction with ZnO-Fe2O3 Nanoparticles and UV Radiation. AIMS Geosciences, 2017, 3(4): 498-513. doi: 10.3934/geosci.2017.4.498

References

  • 1. United Nations General Assembly, Resolution 64/292. The human right to water and sanitation 2010. Available from: http://www.un.org/es/comun/docs/?symbol=A/RES/64/292&lang=E.
  • 2. World Health Organization, Meeting the MDG drinking water and sanitation. The urban and rural challenge of the decade, UNICEF, 2006. Available from: http://apps.who.int/iris/bitstream/10665/43488/1/9241563257_eng.pdf?ua=1.
  • 3. World Health Organization, Global status report on noncommunicable diseases, WHO, 2010.
  • 4. J Doménech (2003) Cryptosporidium y Giardia, problemas emergentes en el agua del consumo humano. Offarm: Farm Soc 22: 112-116.
  • 5. R Bain, R Cronk, R Hossain, et al. (2014) Global assessment of exposure to faecal contamination through drinking water based on a systematic review. Trop Med Int Health 19: 917-927.    
  • 6. A Pruss-Ustun, J Bartram, T Clasen, et al. (2014) Burden of disease from inadequate water, sanitation and hygiene in low- and middle- income settings: a retrospective analysis of data from 145 countries. Trop Med Int Health 19: 894-905.    
  • 7. Wolf J, Pruss-Ustun A, Cumming O, et al. (2014) Assesing the impact of drinking water and sanitation on diarrhoeal disease in low- and middle-income settings: systematic review and meta-regression. Trop Med Int Health 19: 928-942.
  • 8. Virto R, Mañas P, Álvarez I, et al. (2005) Membrane damage and microbial inactivation by chlorine in the absence and presence of a chlorine-demanding substrate. Appl Environ Microbiol 71: 5022-5028.
  • 9. MT Orta, J Martínez, I Monje, et al. (2004) Destruction of helminth (Ascaris summ) eggs by ozone. Sci Eng 26: 359-366.
  • 10. MT Orta, MN Rojas, M Vaca. Destruction of helminth (Ascaris suum) eegs by ozone: second stage. Wat Supply 2: 227-233.
  • 11. Z Alouini, M Jemli (2004) Destruction of helminth eggs by photosensitized porphyrin. J Environ Monit 3: 548-551.
  • 12. ER Bandala, MA Peláez, DD Dionysiou, et al. (2007) Degradation of 2,4-dichlorophenoxyacetic acid (2,4-D) using cobaltperoximonosulfate in Fenton-like process. J Photochem Photobiol A 186: 357-363.    
  • 13. RM Ramírez, M Galvan, I Retama, et al. (2006) Viability reduction of parasites (Ascaris spp.) in water with photo-Fenton reaction via response surface methodology. Wat Pract Technol 1: 120-125.
  • 14. ML Maya-Treviño, JL Guzmán-Mar, L Hinojosa-Reyes, et al. (2014) Activity of the ZnO-Fe2O3 catalyst on the degradation of Dicamba and 2,4-D herbicides using simulated solar light. Ceram Int 40: 8701-8708.
  • 15. JN Hasnidawani (2016) Synthesis of ZnO nanostructures using sol-gel method. Proc Chem l: 211-216.
  • 16. EDESSGIIBI Barashkov N.D (2010) Electrochemical chlorine-free AC disinfection of water contaminated with Salmonella typhimurium bacteria. Russ J Electrochem 46: 306-311.
  • 17. Q M C C F S D B A Martinez-Huitle CA (2004)Electrochemical incineration of chloroanilic acid using Ti/IRO2, Pb/PbO2 and Si/BDD electrodes. Electrochim Acta 949-956.
  • 18. Q P Z J S T H H Zang L (1997) Photocatalytic bleaching of p-nitrosodimethylaniline in TiO2 aqueous suspensions: A kinetic treatment involving some primary events photoinduced on the particle surface. J Mol Catal A 235-245.
  • 19. Muff J, Bennedsen LR, Sogaard EG (2011) Study of electrochemical bleaching of p-nitrosodimethylaniline and its role of hydroxyl radical probe compound. J Appl Electrochem 41: 599-607.    
  • 20. T S H M B E Ramires-Sanchez I.M. (2017) Resource efficiency analysis for photocatalytic degradation and mineralization of estriol using TiO2 nanoparticles. Chemosphere 1270-1285, M
  • 21. M J B L K K S E Simonsen M.E. (2010) Photocatalytic bleaching of p-nitrosodimethylaniline and a comparison to the performance of other AOP technologies. J Photochem Photobiol A 244-249.
  • 22. C T I Kraljic (1965) p-nitrosodimethylaniline as an OH radical scavenger in radiation chemistry. J Am Chem Soc 87: 2547-2550.
  • 23. Fahataziz A (1977) Selected specific rates of reactions of transient form water in aqueous solutions III: Hydroxyl radical and pehydroxyl radical and their radical ions. Washington, 1977.
  • 24. M C S M Bors W (1979) On the nature of biochemically generated hydroxyl radicals. European J Biochem 621-627.
  • 25. MT Madigan, JM Martinko, DA Stahl and D. P. Clark Brock, Biology of Microorganisms, New York: Pearson Higher Education, 2011.
  • 26. JL Sánchez-Salas, ML Santiago-Lara, B Setlow, et al. (1992) Properties of Bacillus megaterium and Bacillus subtilis mutants which lack the protease that degrades small, acid-soluble proteins during spre germination. J Bacteriol 174: 807-814.
  • 27. Jones N, Ray B, Ranjit KT, et al. (2008) Antibacterial activity of ZnO nanoparticle suspensions on a broad spectrum of microorganism. FEMS Microbiol Lett 279: 71-76.    
  • 28. Sirelkhatim A, Mahmud S, Seeni A, et al. (2015) Review on zinc oxide nanoparticles: antibacterial activity and toxicity mechanism. Nano Micro Lett 7: 219-242.
  • 29. J Achouri, S Corbel, A Aboulaich, et al. (2014) Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures. J Phys Chem Solids 75: 1081-1087.
  • 30. Setlow P (2011) Resistance of SPores of Bacillus Species to Ultraviolet Light. Environ Mol Mutagen 38: 97-104.
  • 31. N Vermeulen, WJ Keeler, K Nandakumar, et al. (2007) The bactericidal effect of ultraviolet and visible light on Escherichia coli. Biotechnol Bioeng 99: 550-556.

 

This article has been cited by

  • 1. Oscar M. Rodríguez-Narváez, Oracio Serrano-Torres, Kazimierz Wrobel, Enric Brillas, Juan M. Peralta-Hernandez, Production of free radicals by the Co2+/Oxone system to carry out diclofenac degradation in aqueous medium, Water Science and Technology, 2018, 78, 10, 2131, 10.2166/wst.2018.489

Reader Comments

your name: *   your email: *  

Copyright Info: 2017, José Luis Sánchez-Salas, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Copyright © AIMS Press All Rights Reserved