Journal of Pure and Applied Ultrasonics

Open Access Open Access  Restricted Access Subscription Access

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.
User
Notifications
Font Size

  • 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.


Abstract Views: 304

PDF Views: 2




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

Abstract Views: 304  |  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