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India
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Samusolomon J.,TBML College | Devaprasath P.M.,TBML College
Journal of Chemical and Pharmaceutical Research | Year: 2011

Adsorption is potentially an attractive methodology for removing hazardous dyestuff and heavy metals from industrial effluents. In this work the removing efficiency of an industrially important dye Alizarin Red S from aqueous media using cynodon dactylon as adsorbent has been investigated. Various parameters, which can influence the adsorption like, mesh size of adsorbent, contact time of solution with adsorbent, temperature, pH, adsorbent dose and stirring speed were optimized.


Thillai Natarajan S.,TBML College | Jayaraj R.,TBML College | Jeyasingh Thanaraj P.,TBML College | Martin Deva Prasath P.,TBML College
Journal of Chemical and Pharmaceutical Research | Year: 2011

The preparation of activated carbon (AC) from marine algae is a promising way to produce a useful adsorbent for Chromium (VI) removal from aqueous solution. The AC was prepared using marne algae Graciliria edulis with con H 2SO 4 and physico-chemical properties of AC were investigated. The specific surface area of the activated carbon was determined and its properties studied by scanning electron microscopy (SEM). Adsorptive removal of Chromium(VI) from aqueous solution onto AC prepared from marine algae has been studied under varying conditions of agitation time, metal ion concentration, adsorbent dose and pH to assess the kinetic and equilibrium parameters. Adsorption equilibrium was obtained in 180min for 10 to 50 mg/L of Chromium(VI) concentrations. The Langmuir, Freundlich and DKR equilibrium isotherm models were found to provide an excellent fitting of the adsorption data. In Freundlich equilibrium isotherm, the r 2 values obtained were in the range of 0.2 to 1 (0.9698 to 0.7204) for Chromium(VI) concentration of 10 to 60mg/L, which indicates favorable adsorption of Chromium(VI) onto marine algae carbon. The adsorption capacity of Chromium(VI) 98.37%. The percent removal maximum in pH1. This adsorbent was found to be effective and economically attractive.


Rajarajan K.,Rajah Serfoji Government College | Anbarasan K.,Rajah Serfoji Government College | Samu Solomon J.,TBML College | Madhurambal G.,ADM College for women
Journal of Chemical and Pharmaceutical Research | Year: 2012

Single crystals of Lead(II)nitrate doped Histidine Picrate crystal has been grown successfully by solution growth method from its aqueous solution. The grown crystals have been subjected to X-ray diffraction (XRD) studies to identify the morphology and structure. The FTIR study reveals bonding interaction of PbNO3 and Histidine in the crystal. The NLO property of the crystals has been confirmed.


Govindarajan M.,Government of Puducherry | Ganasan K.,Tbml College | Periandy S.,Tagore Arts College Women | Karabacak M.,Afyon Kocatepe University
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2010

In this work, the vibrational spectral analysis was carried out using Raman and infrared spectroscopy in the range 100-4000 cm-1 and 50-4000 cm-1, respectively, for the title molecules. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational bands are interpreted with the aid of structure optimizations and normal coordinate force field calculations based on Hartee Fock (HF) and density functional theory (DFT) method and different basis sets combination. The complete vibrational assignments of wave numbers were made on the basis of potential energy distribution (PED). The scaled B3LYP/6-311++G(d,p) results show the best agreement with the experimental values over the other methods. The effects due to the substitutions of methyl group and halogen bond were investigated. The results of the calculations were applied to simulated spectra of the title compounds, which show excellent agreement with observed spectra. © 2010 Elsevier B.V. All rights reserved.


Govindarajan M.,Avvaiyar Government College | Periandy S.,Tagore Arts College | Ganesan K.,TBML College
E-Journal of Chemistry | Year: 2010

The structural and vibrational property of 1-methoxynaphthalene has been studied. The fundamental vibrational frequencies and intensity of vibrational bands were evaluated using B3LYP/6-31G (d, p) basis set and was scaled using various scale factors, which yielded a good agreement between observed and calculated frequencies. The vibrational spectra were interpreted with the aid of normal coordinate analysis. The results of the calculations were applied to simulated spectra of the title compound, which shows excellent agreement with observed spectra. The calculated force constants in vibrational internal coordinates are in closely coincides with the experimentally observed force constants.


Govindarajan M.,Avvaiyar Government College Women | Ganasan K.,Tbml College | Periandy S.,Tagore Arts College Women | Mohan S.,PRIST University
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2010

FT-IR and FT-Raman spectra of α-acetonaphthone have been recorded and analyzed. The geometry, fundamental vibrational frequencies and intensity of the vibrational bands are interpreted with the aid of structure optimizations and normal coordinate force field calculations based on density functional theory (DFT) B3PW91/6-311G method and also a comparative studies between different levels and various basis sets combination. The scaled B3PW91/6-11G results are best, even though LSDA/6-311G wavenumbers are well in agreement before scaling. The complete vibrational assignments of wavenumbers are made on the basis of potential energy distribution (PED). The effects due to the substitutions of methyl group and carbon-oxygen bond are investigated. The results of the calculations are applied to simulated spectra of the title compound, which shows excellent agreement with observed spectra. Crown Copyright © 2010.


Debaje S.B.,Indian Institute of Tropical Meteorology | Kakade A.D.,Commerce and Science College | Johnson Jeyakumar S.,Tbml College
Journal of Hazardous Materials | Year: 2010

Measurement of surface ozone (O3) mixing ratio was made from January 2006 to December 2007 in Ahmednagar (19.1°N, 74.8°E, 657m above sea level), India. The monthly average of daytime maximum of O3 mixing ratio ranged from 14 to 57 parts per billion by volume (ppbv) with an annual average of about 20ppbv. The estimated winter wheat and summer crop yield reduction by 10% and 15%, respectively from present O3 pollution level associated with AOT40 (accumulation exposure of O3 concentration over a threshold of 40ppbv) index values 7370-9150ppbvh in rural areas. © Elsevier B.V.


Govindarajan M.,MGGA College | Ganasan K.,Tbml College | Periandy S.,Tagore Arts College | Karabacak M.,Afyon Kocatepe University
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2011

In this work, FT-IR and FT-Raman spectra of 1-methoxynapthalene (C 11H10O) have been reported in the regions 4000-400 cm -1 and 3500-100 cm-1, respectively. Density functional method (DFT) has been used to calculate the optimized geometrical parameters, atomic charges, vibrational wavenumbers and intensity of the vibrational bands. The vibrational frequencies have been calculated and scaled values are compared with experimental FT-IR and FT-Raman spectra. The structure optimizations and normal coordinate force field calculations are based on density functional theory (DFT) method with B3LYP/3-21G, B3LYP/6-31G, B3LYP/6-31G(d,p) and B3LYP/6-311++G(d,p) basis sets. The complete vibrational assignments of wavenumbers are made on the basis of potential energy distribution (PED). The optimized geometric parameters are compared with experimental values of naphthoic acid. The results of the calculation shows excellent agreement between experimental and calculated frequencies in B3LYP/6-311++G(d,p) basis set. The effects due to the substitutions of methyl group and carbon-oxygen bond are also investigated. A study on the electronic properties, such as excitation energies and wavelengths, were performed by time-dependent DFT (TD-DFT) approach. HOMO and LUMO energies are calculated that these energies show charge transfer occurs within the molecule. © 2011 Elsevier B.V. All rights reserved.


Antony Joseph A.,St. Joseph's College | John David Ebenezar I.,TBML College | Ramachandra Raja C.,Government Arts College Autonomous
Optik | Year: 2012

Organic nonlinear optical material, L-valinium picrate (LVP) was synthesized by slow evaporation solution growth method. The synthesized material was purified by repeated recrystallization. Single crystals of LVP were grown by slow evaporation method using water as solvent. The cell dimensions were obtained by X-ray diffraction study and crystal system was confirmed as monoclinic. The transmission spectrum of LVP was recorded by UV-Vis-NIR spectrometer in the range between 190 nm and 1100 nm which addressed the high percentage of transmission of the sample in the entire visible region. The presence of functional groups was studied by FT-IR analysis. The chemical environment of carbon and hydrogen in the proposed structure of LVP crystal was confirmed by FT NMR studies. The Kurtz-Perry powder SHG measurement was confirmed the frequency doubling of the crystal. © 2011 Elsevier GmbH. All rights reserved.


Aadhityan A.,TBML College
ICIIECS 2015 - 2015 IEEE International Conference on Innovations in Information, Embedded and Communication Systems | Year: 2015

This paper describe about a new methodology to implement Artificial Intelligence, Cloud and Internet of Things in Robots. Now a days, Artificial Intelligence take a main part in the world into robotics. Almost all industries use robots for various works. They were using co-operative robots to make different kind of works. But there was some problem to make robot for multi tasks. So there is a need to create new methodology to made multi tasking robots. It will be done only by artificial intelligence and internet of things. Also connected to cloud can reduce cost. This paper describe the process to make a robot in a simplified manner. © 2015 IEEE.

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