@article { ISI:000273067400009,
	title = {Effect of sintering temperature and thermoelectric power studies of the system MgFe2-xCrxO4},
	journal = {Solid State Sciences},
	volume = {11},
	number = {12},
	year = {2009},
	month = {DEC},
	pages = {2075-2079},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Mixed metal oxides showing the spinel structure exhibit interesting structural and electrical properties. Substances with specific compositions in the system MgFe2-xCrxO4 were synthesized by the simple co-precipitation method and have been investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM) to study the effect of temperature on the size of particles and grains. The infrared spectrum shows, two strong bands around 600 and 500 cm(-1). An elemental composition of one of the samples, MgFeCrO4 was found by energy dispersive X-ray spectroscopy (EDS). The thermoelectric power measurements carried out from room temperature to 500 degrees C, show both n-type and p-type behavior. (C) 2009 Elsevier Masson SAS. All rights reserved.</p>},
	keywords = {synthesis, Temperature effect, Thermoelectric studies},
	issn = {1293-2558},
	doi = {10.1016/j.solidstatesciences.2009.09.005},
	author = {Hankare, P. P. and Vader, V. T. and Sankpal, U. B. and Gavali, L. V. and Sasikala, R. and Mulla, Imtiaz S.}
}
@article { ISI:000309644400011,
	title = {Enhanced photocatalytic activity of multi-doped TiO2 for the degradation of methyl orange},
	journal = {Applied Catalysis A-General},
	volume = {443},
	year = {2012},
	month = {NOV},
	pages = {96-102},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>We report the synergistic effect of dopants like Gd, N and Sin enhancing the photocatalytic activity of TiO2. Nanosized TiO2 doped at both cationic and anionic sites by Gd, N and S exhibited increased photocatalytic activity compared to TiO2 doped with either Gd or N and S. All the doped TiO2 existed as anatase phase and no separate phase due to Gd2O3 was seen up to a Gd concentration of 2\%. The particle size as seen from the transmission electron micrograph was similar to 25 nm. The optical absorption property of TiO2 was improved by doping and redshift of the absorption edge is seen for all doped samples compared to pristine TiO2. The red shift of the absorption edge was the highest for the multiple ion-doped sample. Presence of bonded N and S in TiO2 was detected by X-ray photoelectron spectroscopy. Fluorescence lifetime studies indicated an enhanced lifetime for the charge carriers in the doped system compared to pristine TiO2. Photocatalytic activity study showed that the multi-doped sample has the highest activity for the degradation of methyl orange compared to Gd-TiO2, NS-TiO2 and pristine TiO2. The enhanced photocatalytic activity of the multi-doped TiO2 is attributed to factors such as improved optical absorption property and improved lifetime of the charge carriers. (C) 2012 Elsevier B.V. All rights reserved.</p>},
	keywords = {Fluorescence lifetime, Gd N S doped TiO2, Methyl orange, Photocatalyst, Photodegradation},
	issn = {0926-860X},
	doi = {10.1016/j.apcata.2012.07.032},
	author = {Charanpahari, A. and Umare, S. S. and Gokhale, S. P. and Sudarsan, V. and Sreedhar, B. and Sasikala, R.}
}
