Journal of Pure and Applied Ultrasonics

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pH Effects on Zeta Potential of ZnO Nanofluids to Inspect Stability and its Antibacterial Activities Against E. Coli DH10B


Affiliations
1 Department of Physics, Arts, Commerce and Science College, Maregaon-445 303, India
2 St.Vincent Pallotti College of Engineering and Technology, Nagpur-441 108, India
3 Department of Physics, RTM Nagpur University, Nagpur-440 033, India
4 LIT, Department of Physics, RTM Nagpur University, Nagpur-440 033, India
 

In this work, ZnO nanoparticles were radially synthesized via sol-gel technique and ZnO nanofluids in distilled water (ZnO-W) and in methanol (ZnO-Me) were produced by two step method. The prepared ZnO nanoparticles are characterised by X-ray diffraction characterized by XRD. Average particle size of synthesized ZnO nanoparticles has been estimated by Debye-Scherrer formula. It was found to be about 30 nm. The particle size distributions of the synthesized nanofluid are measured through acoustic particle sizer (APS-100). The observed features of ZnO nanofluids are discussed in correlation with zetapotential, thermal conductivity and sound velocity. Master ZnO nanofluids with a pH value of about 7 were prepared and stored for different periods under the light and in dark for the evaluation of its antibacterial activities against E coli DH10B by estimating the reduction ratio of the bacteria treated with ZnO.

Keywords

Zeta Potential, Ultrasonic Velocity, Thermal Conductivity, Nanoparticles, ZnO Nanofluids.
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  • Schmid G, Large clusters and colloids Metals in the embryonic state. Chem. Rev. 92(8), (1992) 1709-27.

  • Alivisatos A.P., Perspectives on the physical chemistry of semiconductor nanocrystals. J Phys. Chem. 100(31), (1996) 13226-39.

  • Bahnemann D.W., Kormann C. and Hoffmann M.R., Preparation and characterization of quantum size zinc oxide: a detailed spectroscopic study, J. Phys. Chem. 91(14), (1987) 3789-98.

  • Shingo T., Atsushi N., Takeharu T. and Hiroyuki W., Materials 4, (2011) 1132-1143.

  • Tanujjal B., Karthik K.L., Soumik S. and Joydeep D., Journal of nanotechnology, 4, (2013) 714-725.

  • Wang B.X., Zhou L.P. and Peng X.F., Mechanism of heat transfer in nanofluids, Prog. Nat. Sci., 14, (2004) 36-41.

  • Riyadh M.A., Quraish A.K., Kassim M.S., Rawaa A. Ali, Roaa J.M., Noor A.K. and Alwan N.J., Nanoscience and Nanotechnology 5, (2015) 1-6.

  • Sawai J., Igarashi H. and Hashimoto A. et al., Evaluation of growth inhibitory effect of ceramics powder slurry on bacteria by conductance method. J. Chem. Eng. Jpn. 28, (1995) 288-93.

  • Yamamoto O., Hotta M. and Sawai J. et al., Influence of powder characteristic of ZnO on antibacterial activity effect of specific surface area. J. Ceramic. Soc. Jpn. 106(10), (1998) 1007-11.

  • Liu M.S., Lin M.C.C., Huang I.T. and Wang C.C., Enhancement of thermal conductivity with CuO for nanofluids, Chem. Eng. Technol., 29, (2006) 72-77.

  • Kulkarni D.P., Das D.K. and Chukwu G.A., Temperature dependent rheological property of copper oxide nanoparticles suspensions, J. Nanosci. Nanotechnol, 6, (2006) 1150-1154.

  • Kumar D.H., Patel H.E., Kumar V.R.R., Sundararajan T., Pradeep T. and Das S.K., Model for heat conduction of nanofluids, Phy. Rev. Lett., 94(14), (2004) 1-3.

  • Yu W. and Xie H., A review of nanofluids: preparation, stability mechanisms and applications, J. Nanomat., 2012 (2011) 1-17.

  • Rajagopalan S., Sharma S.J. and Nanotkar V.Y., Ultrasonic Characterization of Silver Nanoparticles, Journal of Metastable and Nanocrystalline Materials, 23, (2005) 271-274.

  • Gan Z., Ning G., Lin Y. and Cong Y., Morphological control of mesoporous alumina nanostructures via template-free solvothermal synthesis. Mater Lett. 61(31), (2007) 3758- 3761.

  • Zhan X., Honkanen M. and Leva E., Transition alumina nanoparticles and nanorods from boehmite nanoflakes. J Crystal Growth. 310(30), (2008) 3674-3679.

  • Roman M., Particle size and Zeta Potential of ZnO, Science Direct, APCBEE Procedia 9, (2014) 13-17.

  • Rajagopalan S., Sharma S.J. and Nanotkar V.Y., Ultrasonic Characterization of Silver Nanoparticles, J. of Metas. Nanocryst. Mat. 23, (2005) 271-274.

  • Eastman J.A., Choi S.U.S., Li S., Yu W. and Thompson L., Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles, J. Appl. Phys. Lett., 78, (2001) 718-723.

  • Lee S., Choi S.U.S., Li S. and Eastman J.A., measuring thermal conductivity of fluids containing oxide nanoparticles, J. Heat Transfer, 121, (1999) 280-289.

  • Kulkarni D.P., Das D.K. and Chukwu G.A., Temperature dependent rheological property of copper oxide nanoparticles suspensions, J. Nanosci. Nanotechnol, 6, (2006) 1150-1154.

  • Zhengping Qiao., Yi Xie., Yingjie Zhu. and Yitan Qian., Synthesis of PbS/polyacrylonitrile nanocomposites at room temperature by Y-radiation, J. Mater. Chem, 9, (1999) 1001-1002.

  • Wang J.X., Wen L.X. and Wang Z.H., et al., Immobilization of silver on hollow silica nanospheres and nanotubes and their antibacterial effects. Mater Chem. Phys. 96(1), (2006) 90-7.

  • Sawai J., Kawada E. and Kanou F., et al., Detection of active oxygen generated from ceramic powders having antibacterial activity. J. Chem. Eng. Jpn. 29(4), (1996) 627-33.

  • Sawai J., Kojima H. and Igarashi H. et al., Escherichia coli damage by ceramic powder slurries. J. Chem. Eng. Jpn. 30(6), (1997) 1034-9.

  • Sawai J., Shoji S. and Igarashi H. et al., Hydrogen peroxide as an antibacterial factor in zinc oxide powder slurry. J. Ferment Bioeng, 86(5), (1998) 521-2.

  • Yan Y.R., Zhao Y.I. and Lin X.S., Investigation of antibacterial property of ultra-fine Photo catalytic inorganic powders. In: Proceedings of the sixth international conference on electronic measurement and instruments. Taiyuan, China, (2003) 2542.

  • Yang J.L., An S.J. and Park W.I. et al., Photo catalysis using ZnO thin films and nanoneedles grown by metalorganic chemical vapor deposition. Adv. Mater 16(18), (2004) 1661-4.


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  • pH Effects on Zeta Potential of ZnO Nanofluids to Inspect Stability and its Antibacterial Activities Against E. Coli DH10B

Abstract Views: 258  |  PDF Views: 2

Authors

N.R. Pawar
Department of Physics, Arts, Commerce and Science College, Maregaon-445 303, India
Mrunal Pawar
St.Vincent Pallotti College of Engineering and Technology, Nagpur-441 108, India
O.P. Chimankar
Department of Physics, RTM Nagpur University, Nagpur-440 033, India
Vijay Pawade
LIT, Department of Physics, RTM Nagpur University, Nagpur-440 033, India
V. K. Jadhao
LIT, Department of Physics, RTM Nagpur University, Nagpur-440 033, India

Abstract


In this work, ZnO nanoparticles were radially synthesized via sol-gel technique and ZnO nanofluids in distilled water (ZnO-W) and in methanol (ZnO-Me) were produced by two step method. The prepared ZnO nanoparticles are characterised by X-ray diffraction characterized by XRD. Average particle size of synthesized ZnO nanoparticles has been estimated by Debye-Scherrer formula. It was found to be about 30 nm. The particle size distributions of the synthesized nanofluid are measured through acoustic particle sizer (APS-100). The observed features of ZnO nanofluids are discussed in correlation with zetapotential, thermal conductivity and sound velocity. Master ZnO nanofluids with a pH value of about 7 were prepared and stored for different periods under the light and in dark for the evaluation of its antibacterial activities against E coli DH10B by estimating the reduction ratio of the bacteria treated with ZnO.

Keywords


Zeta Potential, Ultrasonic Velocity, Thermal Conductivity, Nanoparticles, ZnO Nanofluids.

References