Effect of Ocimum gratissimum plant leaf extract concentration and annealing temperature on the structure and optical properties of synthesized zinc oxide nanoparticles
DOI:
https://doi.org/10.37134/ejsmt.vol7.1.1.2020Keywords:
zinc oxide nanoparticles, Ocimum gratissimum, optical spectroscopy, electron microscopyAbstract
Zinc oxide nanoparticles biosynthesized using two concentrations of Ocimum gratissimum (Og) plant leaf extracts were annealed at two different temperatures. Their UV-Vis absorbance peaks at 372 nm - 375 nm indicate a blue shift in excitonic absorption and their optical energy band gap values were in the range 3.22 eV – 3.31 eV. SEM images show the nanoparticles to be polydispersed and of a wide range of sizes with smaller nanoparticles clustering around bigger micrometer- sized ones with sharp edges. An annealing temperature of 400 resulted in the sintering of the nanoparticles but nanoparticles annealed at 250 had porous surfaces suggesting a possible use in gas sensor applications. XRD patterns show that the ZnO nanoparticles have the hexagonal wurtzite structure and are of good crystalline structure. Obtained crystallite sizes increased with annealing temperature and were in the range 14 nm to 29 nm. FTIR spectra show phenols, amines and aldehydes as the available reducing agents involved in the nanoparticle synthesis. The photoluminescence (PL) spectra show two emission peaks: a UV emission peak at 369 -381 nm indicating that the zinc oxide nanoparticles exhibited band-edge photoluminescence and a green emission peak at 523 nm – 538 nm suggesting the presence of defects from singly ionized oxygen vacancies. The PL peak intensities were dependent on the annealing temperatures with the UV- emission peaks for higher annealing temperatures exhibiting a spectral shift towards lower wavelengths. Plant leaf extracts concentration and the annealing temperatures used affect the structure and optical properties of the synthesized ZnO nanoparticles.
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References
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[43] Chithra, M.J., Sathya, M., Pushpanathan, K.(2015) Effect of pH on crystal size and photoluminescence property of ZnO nanoparticles prepared by chemical precipitation method. Acta metallurgica sinica (English Letters), 28(3): 394-404 https://doi:10.1007/s40195-015-218-8
[2] Hossain MK, Minelli A, Sadaf F, Ulfa M (2014) Synthesis and Optical Characterization of morphologically different ZnO nanoparticles and their interaction with hydrogen, nan. O mat. Master, pp 1-11, 2014
[3] Soosen S.M, Bose L, George K.C (2009) Optical properties of ZnO Nanoparticles SB Academic review XVI (1,2): 57-65
[4] Quin L, Shing C, Sawyer S, Dutta P (2011) Enhanced ultraviolet sensitivity of zinc oxide nanoparticle photoconductors by surface passivation Optical materials Elsevier 33: 359-362
[5] Espitia P., Otoni C.G. et al, (2012) ZnO nanoparticles: Synthesis, Antimicrobial activity and food packaging applications. Food and Bioprocess Technology Vol 5(5): 1447-1464 Espitia PJP, Soares N.F.F Combra JSR et al https://doi.org/10.1007/s 11947-012-07976-6
[6] Selvi, MT, K Nancy, J Felicita Florence, A study on the effect of pharmacologically active Lawsonia Inermis Linn leaf extract on zinc electrodeposition on mild steel. International journal of research and development in Pharmacy and life sciences, 2015.4(1):1362-1370.
[7] Rameshaiah, G., J. Pallavi, and S. Shabnam, Nano fertilizers and nano sensors–an attempt for developing smart agriculture. Int J Eng Res Gen Sci, 2015. 3(1): p. 2091-2730.
[8] Sidra, S., Muhammad, A., Chaudhari, S.K, (2014) Zinc oxide nanoparticles for revolutionizing Agriculture; Synthesis and Applications (articles ID 025494) Hindawi Publishers, 2014, 1-8
[9] Mfon R.E, Odiaka N.I., Sarua A (2017) Interactive effect of colloidal solution of zinc oxide nanoparticles biosynthesized using Ocimum gratissimum and Vernonia amygdalina leaf extracts on the growth of Amaranthus cruentus seeds. African Journal of Biotechnology Vol 16(26): 1481-1489
[10] Ero, A., Okur, S., Comba, B., Mermer, O., Arikan, M.C. (2010) Humidity sensing properties of ZnO nanoparticles synthesized by Sol-gel process. Elsevier Science Direct, B145: 174-180
[11] Abdullah K.A., Awad S., Zaraket J., Salame C., Synthesis of ZnO nanopowders by using Sol-Gel and Studying their structural and Electrical properties at different temperature, Energy Procedia 119(2017): 565-570)
[12] Agarwal H., Rajeshkumar S., (2017) A review on gren synthesis of zinc oxide nanoparticles- An ecofriendly approach , Resource-Efficient Technologies 3(4): 406-413
[13] Malik P, Shankar R, Malik V, Sharma N, Mukherjee TK (2014) Green chemistry based benign routes for nanoparticle synthesis J. nanopart. 2014: https://doi:10.1155/2014/302429
[14] Egorova E.M., Revina A.A., (2000) Synthesis of metallic nanoparticles in reverse micelles in the presence of quercetin. Colloids Surf. A Physicochem Eng. Asp. 168: 87-96
[15] Yasin S., Liu L., Yao J. (2013) Biosynthesis of silver nanoparticles by Bambo leaves extract and their antimicrobial activity. Journal of Fibre Bio engineering and informatics 6(1):77-84
[16] Dixon R.A., Pasinetti G.M (2010) Flavonoids and Isoflavonoids from plant Biology to Agriculture and neuroscience plant physiol. 154(2): 453-457
[17] Mittal A.K., Chisti Y., Banerjee U.C (2013) Synthesis of metallic nanoparticles using plant extracts. Elsevier Biotechnology Advances 13(2): 346-356
[18] Dubey M., Bhadauria S., Kushwah B (2009) Green synthesis f Nano silver particles from extract of Eucalyptus hybrid (safeda) leaf. Dig.J. Nanomater. Biostruct. 4: 537-543
[19] Huang J.L., Li Q.B., Sun D.H., Lu Y.H., Su Y.B., Yang X et al (2007) Biosynthesis of Silver and Gold nanoparticles by novel sundried Cinnamomum camphora leaf. Nanotechnology 18, 2007.
[20] Makarov VV, Love AJ, Sinitsyna OV, Makarov SS, Yaminsky I.V, Taliansky ME and Kalinina NO (2014) Green Nanotechnologies: Synthesis of metal nanoparticles using plants. Acta Naturae 6(1): 35-44
[21] Ahmed S, Ahmad SM, Swami BL Ikram S (2016) green synthesis of silver nanoparticles using Azadirachta indica. aqueous leaf extract. Journal of Radiation research 9(1):1-7
[22] Sangeetha G, Rajeshwari S, Venckafesh R, (2011) Green synthesis of zinc oxide nanoparticles by aloe barbadensis miller leaf extract:structure and optical properties, Materials Research Bulletin 46(2011): 2560- 2566
[23] Raut S, Thorat P.V., Thakre R., (2015) Green synthesis of zinc oxide nanoparticles using Ocimum Tenuiflorum leaves, IJSR, 4(5): 1225-1228
[24] Salam H.A., Sivaraj R., Rajendran V,(2014) Green synthesis and characterisation of zinc oxide nanoparticles fromm Ocimum basilicum L var, purpurasceris Benrith-Lamiaceae leaf extract, Materials letters 131: 16-18
[25] Narendra K., Chandra H.K., Mohana N., Nuthan B.R et al (2019) Phyto-mediated synthesis of zinc oxide nanoparticles using aqueous plant extract of Ocimum americanumm and evaluation of its bioactivity, S,N Applied Sci 1 651 https://doi10.1007/s42452-019-0671-5
[26] Ramana M.V., Anuradha G., Rao V.V.J.R., Anitha P., Lakshmi P.S. (2013) Synthesis of zinc oxide Nanostructures suing Ocimum gratissimum leaf extract IJSR: 140-143
[27] Dare EO, Oseghale CO, Labulo AH, Adesuji ET, Elemike EE, Onwuka J, Bamgbose T, Green synthesis and growth kinetics of nanosilver, Springer J. Nanostruct. Chem (5) pp 85-94, 2014
[28] Rabelo, M., Souza, E.P., Soare, P.M.G.(2003) Antinociceptive properties of the essential oil of Ocimum gratissimum L (Lubiatae) in mice, Braz. J Med Biol. Res :36:521-524
[29] Kabir, O.A, Olukayode, O, Chidi, E.O, Ibe, Christopher C I, and Kehinde, A.F.(2005) Screening of crude extracts of six medicinal plants used in South-West Nigeria unorthodox medicine for anti-methicillin resistant Staphylococcus aureus activity. BMC complementary and Alternative Medicine, 5:6: 1-7
[30] Prabhu, K.S., Lobo, R., Shirwaikar, A.A., and Shirwaikar, A.(2009) Ocimum gratissimum: A Review of its chemical, Pharmacological and Ethnomedicinal Properties The open complementary medicine journal. 1: 1-15
[31] Ijeh, I.I., Omodamiro, O.D., Nwanna, I.J.(2005) Antimicrobial effects of aqueous and ethanolic fractions of two species Ocimum gratissimum and Xylopia aethiopica. Afr. J. Biotech, 4: 953-956
[32] Hossain, Md K., Minelli, A., Sadaf, F., Ulfa, M.(2014) Synthesis and Optical characterisation of morphologically different ZnO Nano powders and their interaction with hydrogen, nano Mat. 1-11
[33] Liqiao, Q., Christopher, S., Sawyer, S., Dutta, P.S.(2011) Enhanced ultra-violet sensitivity of Zinc oxide nanoparticles photoconductors by surface passivation. Elsevier Optical Materials (933), 359-362
[34] Koch, U., Fojtik, A., Weller, H., Henglein, A.(1985) Photochemistry of semiconductor colloids preparation of extremely small ZnO par-SAO/NASA ADS. Chemical Physics Letters, 122(5), 507-510
[35] Soto-Robes C.A., Lugue P.A., Gomeez-Gutierrez C.M., Nava O., Vilchis-Nestor A.R., Lugo-Medina E., Ranjithkumar R., Castro-Beltran A., (2019), Study on the effect of the concentration of Hibiscus sabdariffa extract on the green synthesis of ZnO nanoparticles, Results in Physics, 15(2019)102807
[36] Fendler J.H., (2008) Nanoparticles and Nanostructured films: Preparation, Characterization and Applications. John Wiley &Sons, 2008 ISBN: 3527612068,9783527612062:488
[37] Mallika A.N., Reddy A.R., and Reddy K.V (2015) Annealing effects on the structural and optical properties of ZnO nanoparticles with PVA and CA as chelating agents, J Adv. Ceramic 4(2): 123-129. https://doi:10.1007/s40145-015-01 42-4
[38] Nithya K., Kalyanasundharam S., (2018) Effect of chemically synthesis compared to biosynthesized ZnO nanoparticles using aqueous extract of C. halicacabum and their antibacterial activity, Open Nano Vol4 2019, 100024 https://doi.org/10.1016/jo.nano.2018.10.001
[39] Zhang G., Lu K., Zhang X., Yuan W., Shi M., Ning H, Tao R., Lui X., Yao R., and Peng J.,(2018) Effects of annealing temperature on optical band gap of sol-gelTungsten trioxide films, Micromachine, 9(8): 377
[40] Rodnyi, P.A., Khodyuk, I.V.(2011) Optical and Luminescence properties of Zinc Oxide optics and spectroscopy, Vol III No 5, 776-785
[41] Vitalij, K.P and Zavalij, P.Y (2005) Fundamentals of powder diffraction and structural characterisation of materials. Springer
[42] Sangeetha, G., Rajeshwari, S., Venckatesh, R(2011) Green synthesis of zinc oxide nanoparticles by aloe barbadensis miller leaf extract: Structure and optical properties. Mater. Res. Bull. 46(12):2560-2566.
[43] Chithra, M.J., Sathya, M., Pushpanathan, K.(2015) Effect of pH on crystal size and photoluminescence property of ZnO nanoparticles prepared by chemical precipitation method. Acta metallurgica sinica (English Letters), 28(3): 394-404 https://doi:10.1007/s40195-015-218-8
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Published
2020-01-31
How to Cite
Mfon, R. E., Hall, S. R., & Sarua, A. (2020). Effect of Ocimum gratissimum plant leaf extract concentration and annealing temperature on the structure and optical properties of synthesized zinc oxide nanoparticles. EDUCATUM Journal of Science, Mathematics and Technology, 7(1), 1–13. https://doi.org/10.37134/ejsmt.vol7.1.1.2020
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