Volume-9 ~ Issue-10 ~ October-2016

Abstract: GdGaO3(0 ≤ x ≤ 0.5) nano crystalline powders were synthesized by Gd(NO3)2, Ga(NO3)2, and aspartic acid (fuel) in a combustion method with heating at 6000C for 6 hours. This process remarkably reduced the synthesis time and less energy consumable to obtain GdGaO3. The structure of GdGaO3 nano powders were confirmed by x-ray diffraction method. The average crystallite size was determined from X-ray line broadening analysis by using the scherrer equation.:.......
Keywords: Electrical conductivity, SEM, Scherer equation, TGA & DTA, XRD and FTIR

[1]. .A.P.Khandale, S.S.Bhonga* Combistion synthesized Nd2-xCexCu04 (X= 0-0.25) cathode δmaterials for intermediate temperature solid oxide fuel cell applications, Journal of power sources 195 (2010) 7974-7982
[2]. A.P. Khandalea, R.P. Lajurkara,b , S.S.Bhogaa,*, Nd1.8Sr0.2Ni4-δ:Ce0.9Gd0.9O2-δ composite cathode for intermediate temperature solid oxide fuel cells, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39 (2014) 19039-19050.
[3]. Singanahally T.Arunaa, Alexander S. Mukasyanb,1, current option in solid state and material science 12 (2008) 44-50.
[4]. Kirannala Laishram*, Rekha Mann, Richa Sharma@, Dinesh Bhardwaj@, Suman Shakya , and Neelam Malhan , Nd: GGG Nanopowders by Microwave Gel Combustion Route and Sinterability Studies, Defence science journal, vol. 64. No 5. September 2014. Pp.490-494, DOI: 10.14429/dsj.64,5409.
[5]. Jeffrey W. Fergus*, Electrolytes for solid oxide fuel cells, Journal of power sources 162 (2006) 30-40.

Abstract: In this work, silver nanoparticles have been synthesized by chemical reduction method using silver nitrate with sodium borohydride. The synthesized nanoparticles characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD),scanning electron microscopy (SEM and Uv.visable spectroscopy. Results show that nanoparticles have uniform cubic shape with average size of 23 to 31 nm.The silvernanoparticles were applied a counter electrodes to fabricate novel Dye solar cellusing different phases iron oxides nanoparticles a photo anode by (ITO/ iron oxide Nps/ Dye (Rhodamine 6 G) /iodine / Ag film/ ITO).

[1]. T.M. Tolaymat, A.M. El-Badawy, A. Genaidy, K.G. Luxton, T.P. Suidan; J. Sci Total Environ, No.408, pp: 999–1006, (2010).
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Abstract: A new chelating material was synthesized by modifying the activated silica gel with 4-hydroxy benzyldehyde. The synthesized material was characterized by FTIR and BET surface area measurement techniques. The extraction of metal ions such as Fe+2, Zn+2, Mn+3 and Cr+3 by chelating materials was found to be higher than that of silica gel alone. The order of metal sorption was found to be Fe+2>Zn+2>Mn+3>Cr+3. Experimental evidences for existence of surface silanol and its chemical nature here explored the idea of silica surface modification. Adsorption of trace elements in separation and preconcentration from comples synthetic mixture as well as natural water is presented.

Keywords: Silica, 4-hydroxy benzaldehyde, Metal ions, Extractor concentration.

[1]. D. Bilba, D. Bejan and L. Tofan, Croat. Chem. Acta., 71 (1998) 155.
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Abstract: 2-Thiobenzyl-6-Methylbenzoxazole (2-TB6MBXA) has been tested as an inhibitor of copper corrosion in 2M HNO3, using mass loss method and a quantum chemical method based on DFT (B3LYP/6-31G (d)). The results show that this molecule is a good inhibitor. 2-TB6MBXA adsorbs on copper according to Langmuir modified adsorption isotherm. The thermodynamic adsorption and activation parameters indicate a chemisorption process and an endothermic dissolution process. The molecular and chemical reactivity descriptors (global and local) confirm the experimental data.

Keywords: Copper, corrosion inhibition, DFT, mass loss, nitric acid, 2-Thiobenzyl-6-Methylbenzoxaxole

[1] Ph. Marcus, ed., Corrosion Mechanisms in Theory and Practice, 3rd Ed., CRC Press, 2011.
[2] Yu. I. Kuznetsov, M. O. Agafonkina, H. S. Shikhaliev, N. P. Andeeva, and A. Yu. Potapov, Adsorption passivation of copper by triazoles in neutral aqueous solution, J. Corros. Scale Inhib., 3 (2), 2014, 137-148.
[3] H. Wang, Q. Wu, C. m. Li, and N. Gu, Copper corrosion inhibition by polyaspartic acid and imidazole, Mater. Corros., 64 (4), 2013, 347-352.
[4] D. Zhang, L. Gao, and G. Zhou, Inhibition of copper corrosion in aerated hydrochloric acid solution by heterocyclic compounds containing a mercapto group, Corrosion Science, 46(12), 2004, 3031-3040.
[5] M.A. Elmorsi and A.M. Hassanein, Corrosion inhibition of copper by heterocyclic compounds, Corrosion Science, 41(12), 2337-2352.

Abstract: Water with high concentration of minerals is hard water. Water is essential for life. But water with very high degrees of hardness is harmful to health. 120 samples of ground water samples were collected from one town and two different villages. Hardness of water can be determined by EDTA tritrimetric method. Out of all the samples tested 39 (32.5%) samples were moderately hard, 76 (63.33%) samples were hard water and 5 (4.16%) samples were very hard water...........

Keywords: EDTA tritrimetric method, Groundwater, Hardness

[1] Arnedo-Pena, A., Bellido-Blasco, J., Puig-Barbera, J., Artero-Civera, A., Campos-Cruañes, J.B., Pac-Sa, M.R., Villamarín-Vázquez, J.L. and Felis-Dauder, C. 2007. Domestic water hardness and prevalence of atopic eczema in Castellon (Spain) school children. Salud Pública De México., 492 (4): 295–301.
[2] Drinking Water Hardwater Hardness Calcium Magnesium Scale Stained Laundry. Water-research.net. Retrieved 2013-01-26.
[3] Gumashta, J., Gumashtab, R., Sadawarte, S.K. 2012. Hard water and heart: the story revisited. IOSR Journal
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[5] Harold D.F. 1994. Groundwater and Human Health,"Groundwater Resources of British Columbia, Ministry of Environment, Lands, and Parks and Environment Canada. 6.1-6.3.

Abstract: The inhibitive effect of Santalum Album (SA) fruits extracts on the corrosion of mild steel in aqueous solution of 1N HCl was investigated by weight loss method, potentiodynamic polarization and electrochemical impedance spectroscopy techniques (EIS) at room temperature. Potentiodynamic polarization curves indicated that the studies plant extracts acts as mixed type inhibitor. EIS measurements showed that the corrosion process was under activation control. The inhibition efficiency increase with increase inhibitor concentration of fruits extract at room temperature.............

Keywords: Mild Steel; Corrosion Inhibition; Weight Loss Method; Electrochemical Techniques; Scanning Electron Microscopy (SEM).

[1]. A.P. Srikanth, A. Lavanya, S. Nanjundan, and N. Rajendran, Appl. Surf. Sci., 253, (2006), 1810.
[2]. A.S. Fouda,A.A. Al-Sarawyand E.E. El-Katoridesalination,201, (2006) 1.
[3]. O. Benali, L. Larabi,M. Traisnel,L. Gengembre, Y. HarekAppl.Surf.Sci.253,(2007), 6130.

Abstract: The commercial production of highly commercial capsicum is highly dependent on regular usage of insecticides to protect the crop from insect pests. The increased consumer awareness and legal issues on food safety, with special reference to insecticide residues in foods, led to try cheap and effective methods for removal of pesticide residues to address the issues of consumer and food safety, as the farmers are not following the Good Agricultural Practices i.e pre-harvest intervals. The most commonly used pesticides such as profenophos,.............

Keywords: Pesticide Residues, Capsicum, Food Safety, Risk Mitigation, 2% salt solution..

[1] Baptista GC; Trevisan LRP; Franco AA: Silva RA.( 2008.) Deltamethrin residues applied as different formulations in staked cucumber and the actions of insecticides on pickleworm control. Horticulture Brasileira 26: 321-324.
[2] Dhiman,N., Jyot, G.,& Bakhshi, A. K. (2006). Decontamination of various insecticides in cauliflower and capsicum by different processing methods. Mysore journal of Food Science and Technology, 43(1), 92-95.
[3] Elkins ER. Effect of commercial processing on pesticide residues in selected fruits and vegetables. (1980) J Assoc official Agricul Chemists; 7293: 533-35.

[4] Kumari B. Effects of household processing on reduction of pesticide residues in vegetables.(2008) J agricul Biol Sci 2008; 3(4): 1990-45.
[5] Patel, B.A., Shah, Mf., Patel,j.L., & Talati, J. G. (1999). Chlorpyriphos residues in/on cabbage and capsicum. Pesticide Research Journal, 11(2), 194-196.

Abstract: Silver nanoparticle plays very important role in biological activity, but it is very hazardous when synthesized by chemical method. In present work, we used aqueous plant extract of roots of Echinops echinatus for preparation of AgNPs. The bio reduction and stabilization of so formed silver nanoparticles was monitored by UV-visible spectroscopy. The synthesized AgNPs are also characterised by FTIR, SEM and XRD. The UV spectrum shows the Plasmon resonance at 424 nm. The particle grain size of AgNPs was calculated from the SEM. The nanoparticle imageshows antibacterial activity against both gram positive and gram negative organisms..............

Keywords: Nanoparticles, Echinops echinatus, FTIR, XRD and SEM.

[1]. ArangasamyLeela,ManusamyVivekanandan, Tapping the unexploited plant resources for the synthesis of silver nanoparticles, African J. Biotchnol.7 (17) 2008, pp. 3162-3165.
[2]. A Lalitha, R. Subbaiya* and P. Ponmurugan, Green synthesis of silver nanoparticles from leaf extract ofAzhadiracta indica and to study its antibacterial and antioxidant property, Int.J.Curr.Microbiol.App.Sci.,2(6),2013, pp.228-235.
[3]. M, Lui S. L, Poon V.K.M, LungI, Burd A, Antimicrobial activities of silver dressing: An invitro comparison,J. Medical. Microbial, 2006, 55, pp.59-63.
[4]. Parashar V, Parashar R, Sharma B and Pandey AC.,"Parthenium leaf extract mediated synthesis of silver nanoparticles, a novel approach towards weed utilization, Digest Journal of Nanomaterials and Biostructures, 2009; 4: pp.45-50.
[5]. Ishijima A, Yanagida T, Single molecule Nano bioscience Trends,BiochemSci, 26(2001),pp. 438-444..

Abstract: Essential oils obtained from the leaves, seed buds and fruits of Eucalyptus torelliana F. Muel plant by hydro-distillation technique were evaluated using Gas Chromatography-Mass Spectrometry method. The major components of all the essential oils from the Gas Chromatography-Mass Spectral analysis are: 4-hexen-2-one, phenol, 7-Azabicyclo[4.1.0] heptane, 2-isopropyl phenol, 2,5-dimethyl-3-methylene-1,5-Hexadiene, 1,8-nonadiyn, 1-phenylmethanol, n-Hexanol, 2-phenylethanol, Methyl propanoate and haptanitrile. The presences of these compounds suggest potentials of the leaves, seed buds and fruits of Eucalyptus torelliana plant for possible uses as antiseptics, disinfectants and food additives.

Keywords: Eucalyptus torelliana, fruits, gas chromatography-mass spectroscopy, hydro-distillation, leaves, mass spectral, n-hexane extracts and seed buds.

[1] Adeniyi B.A. and Ayepola O.O. The Phytochemical Screening and Antimicrobial Activity of Leaf Extracts of Eucalyptus
camaldulensis and Eucalyptus torelliana (Myrtaceae). Research Journal of Medicinal Plants, 2: 2008, 34-38.
[2] Coffi K., Soleymane K., Harisolo R., Balo T., Claude C.J., Pierre C., Gilles F. and Antoine A. Monoterpene Hydrocarbons, Major
Components of the Dried Leaves Essential Oils of Five Species of the Genus Eucalyptus from Côted'Ivoire. Natural Science, 4(2):
2012, 106-111.
[3] Pinto G., Correia S., Corredoira E., Ballester A., Correia B., Neves L. and Canhoto J. In Vitro Culture of Eucalyptus: where do we
stand? In Park Y., Bonga J.M. and Moon H. (Eds.), Vegetative Propagation of Forest Trees. (National Institute of Forest Science
(NIFoS) Seoul, Korea. 2016), 507-532.
[4] Rockwood D.L., Rudie A.W., Ralph S.A., Zhu J.Y. and Winandy J.E. Energy Product Options for Eucalyptus Species Grown as
Short Rotation Woody Crops. Int J Mol Sci. 9(8): 2008, 1361–1378.
[5] Ololade Z.S and Olawore N.O. Chemistry and Medicinal Potentials of the Seed Essential Oil of Eucalyptus torelliana F.Muell
Grown in Nigeria Global Journal of Science Frontier Research Chemistry, 13(3):2013,1-11...

Abstract: Characterization of gold nanoparticles is significant to appreciate and control nanoparticles synthesis and applications. The present work aims to study the characterization of tiopronin gold nanoparticles ,by TEM, SEM, UV-visble, and NMR.The results shows a rough doped shape of nanoparticleswhich due to tiopronin molecules attached on gold surface.The average particle size of prepared (Tio Au NPs) by chemical method was (48) nm which range between (15-75) nm. The λemwas (700nm) which means that the effective crystalline size of Tio Au NPs was about (1.6nm)..

Keywords: Tiopronin, Gold nanoparticles, SEM, TEM, NMR, UV-visible, EDX and FTIR.

[1] A. C. Templeton, S. Chen, S. M. Gross, and R. W. Murray, "Water-soluble, isolable gold clusters protected by tiopronin and coenzyme monolayers," Langmuir, vol. 15, no. 1, pp.66–76, 1999.
[2] Ali Kamiar, Reza Ghotaslou, Hadi Valizadeh, "Preparation, Physicochemical Characterization and Performance Evaluation of Gold Nanoparticles in Radiotherapy" Advanced Pharmaceutical Bulletin, 2013, 3(2), 425-428.
[3] Anna Dzimitrowicz , Piotr Jamro´ z , George C. diCenzo , Iwona Sergiel ,Tomasz Kozlecki , Pawel Pohl , "Preparation and characterization of goldnanoparticles prepared with aqueous extracts ofLamiaceae plants and the effect of follow-uptreatment with atmospheric pressure glowmicrodischarge"Arabian Journal of Chemistry (2016).
[4] Anne E Shanahan, "Preparation and Characterisation of GoldNanocomposites for use as HeterogeneousCatalysts in Green Chemistry" Doctoral thesis, Dublin Institute of Technology , 2013.
[5] Deb S, Patra HK, Lahiri P, Dasgupta AK, Chakrabarti K, Chaudhuri U. Multistability in platelets and their response to gold nanoparticles. Nanomed: Nanotechnol Biol Med 2011; 7: 376-384...