Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Neeruganti O. Gopal"'
Autor:
Tellamekala Siddaiah, Pravakar Ojha, Neeruganti O. Gopal Velikanti Ramesh Kumar, Chekuri Ramu
Publikováno v:
Materials Research, Vol 21, Iss 5 (2018)
Films of polyvinyl alcohol (PVA), Methacrylic Acid - Ethyl Acrylate (MAA:EA) copolymer and their blends PVA:MAA:EA of composition 80:20, 60:40, 50:50, 40:60, 20:80 (wt %) were prepared by using the solution cast technique. The prepared films were inv
Externí odkaz:
https://doaj.org/article/d6715edc803141fc85b8117943d8ff61
Publikováno v:
The Journal of Physical Chemistry C. 118:2877-2884
Regarding how photogenerated charge carriers are transferred in TiO2(B)/anatase mixed-phase nanowires, no unified conclusion has been reached. Electron paramagnetic resonance (EPR) spectroscopy is employed to investigate the vectorial charge transfer
Autor:
Neeruganti O. Gopal, B.M. Nagabhushana, H. Nagabhushana, Shyue-Chu Ke, R.P.S. Chakradhar, J.L. Rao, C. Shivakumara, D.M. Jnaneshwara, D.N. Avadhani, B. Daruka Prasad, S.C. Sharma
Publikováno v:
Journal of Magnetism and Magnetic Materials. 339:40-45
CoFe 2 O 4 nanoparticles were prepared by solution combustion method. The nanoparticle are characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy and scanning electron microscopy (SEM). PXRD reveals single phase, cu
Autor:
Neeruganti O. Gopal, Tzu-Feng Ke, Chang-Chih Chou, Chin-Hua Lee, Shyue-Chu Ke, Shiann-Cherng Sheu, Hsin-Hsi Lo, Jyun-De Wu
Publikováno v:
The Journal of Physical Chemistry C. 116:16191-16197
Phosphorus-doped TiO2 nanoparticles with visible light activity were prepared by sol–gel method by using Ti(IV) isopropoxide and phosphoric acid as precursors. As prepared samples were calcined at different temperatures, and the obtained samples we
Publikováno v:
The Journal of Physical Chemistry B. 110:11628-11634
We have monitored exclusively the dynamics of photogenerated charge carriers trapping in deep traps and trapped electron-hole recombination in UV irradiated anatase TiO2 powders by electron paramagnetic resonance (EPR) spectroscopy at 10 K. The resul
Autor:
Yi-Hung Liu, Ting Shen Kuo, Wei Cheng Chu, Hua Fen Hsu, Shyue-Chu Ke, Ya Ho Chang, Neeruganti O. Gopal, Chia Ling Su, Chi Chin Wu, Yi Fang Tsai
Publikováno v:
European Journal of Inorganic Chemistry. 2006:1161-1167
The reactions of VVO(O-iPr)3 with [PS3′]H3 and [PS3]H3 {[PS3′]H3 = P(C6H3-5-Me-2-SH)3, [PS3]H3 = P(C6H4-2-SH)3} led to the formation of [VIV(L)] [L = P2S4′ (1a), P2S4 (1b)], where L was formed by the oxidative coupling of two PS3′ or PS3 liga
Publikováno v:
Journal of the American Chemical Society. 130(9)
Boron is diamagnetic in B-doped anatase TiO2 nanoparticles which exhibit photocatalytic activities in the visible light range. Using N as a paramagnetic probe for the formal oxidation state of boron in N/B-codoped TiO2, with more than 90% unpaired sp
Publikováno v:
The journal of physical chemistry. B. 110(11)
An in situ electron paramagnetic resonance (EPR) study has been carried out for anatase (Hombikat UV100) and rutile TiO(2) nanoparticles at liquid helium (He) temperature (4.2 K) under UV irradiation. Rutile titania was synthesized by ultrasonic irra
Publikováno v:
Journal of the American Chemical Society. 132:10982-10983
Rutile TiO(2) nanoparticles with new sites for effectively trapping photogenerated holes have been prepared by reacting the TiO(2) nanoparticles prepared in hydrogen atmosphere with molecular oxygen at elevated temperatures. The observed g values and
Publikováno v:
Applied Physics Letters. 95:083126
As it is now well established that oxygen vacancies are spontaneously introduced during nitrogen doping of anatase TiO2, there is a lively debate on whether nitrogen dopant or oxygen vacancy contributes to the visible light photoactivity of the doped