Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 1178, listelenen: 361-380
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Adsorption of Acid Blue 193 from aqueous solutions onto Na-bentonite and DTMA-bentonite
(Academic Press Inc Elsevier Science, 2004)Dodecyltrimethylammonium bromide-modified bentonite (DTMA-bentonite) was prepared and tested as an adsorbent for an acid dye (Acid Blue 193, AB 193) removal from aqueous solution in comparison with Na-bentonite. The effect ... -
Ni(II) ion-imprinted solid-phase extraction and preconcentration in aqueous solutions by packed-bed columns
(Elsevier Science BV, 2004)Solid-phase extraction (SPE) columns packed with materials based on molecularly imprinted polymers (MIPs) were used to develop selective separation and preconcentration for Ni(II) ion from aqueous solutions. SPE is more ... -
Electrochemical polymerization of fluoro- and chloro-substituted anilines and copolymers with aniline
(John Wiley & Sons Inc, 2004)Poly(2-fluroaniline) and poly(2-chloroaniline) were synthesized by an electrochemical method in an acetonitrile solution containing tetrabutylammonium perchlorate and perchloric acid. Also, the electrochemical copolymerization ... -
The synthesis, characterization and structural analysis of a Co(III) complex of 1,10-phenanthroline and perfluorosebacic acid, [Co(HL)(phen)(2)(H2O)]L center dot H2O
(Verlag Z Naturforsch, 2006)The hexacoordinated mononuclear Co(III) complex 1, [Co(HL)(phen)(2)(H2O)]L center dot H2O, with the mixed ligands (H2L = HO2C(CF2)(8)CO2H and 1,10-phenantroline) has been synthesized and characterized by elemental analysis, ... -
Electrochemical preparation of poly(2-bromoaniline) and poly(aniline-co-2-bromoaniline) in acetonitrile
(John Wiley & Sons Inc, 2003)Electrochemical preparation of poly(2-bromoaniline) (PBrANI) and poly(aniline-co-2-bromoaniline) [P(An-co-2-BrAn)] was carried out in an acetonitrile solution containing tetrabutylammonium perchlorate (TBAP) and perchloric ... -
Electrochemical synthesis of sulfonated polypyrrole in FSO3H/acetonitrile solution
(John Wiley & Sons Inc, 2004)The incorporation of SO3- groups into a polypyrrole backbone was successfully carried out using FSO3H/acetonitrile medium. The degree of sulfonation (sulfonation or sulfur-to-nitrogen ratio) of polymer was controlled by ... -
Electrochemical preparation of soluble sulfonated polymers and aniline copolymers of aniline sulfonic acids in dimethylsulfoxide
(John Wiley & Sons Inc, 2003)Fully sulfonated polyaniline was produced during the electrochemical polymerization of orthanilic, metanilic, and sulfanilic acids in dimethylsulfoxicle (DMSO). The dry conductivity values of the polymers obtained from the ... -
Adsorption of Acid Red 57 from aqueous solutions onto surfactant-modified sepiolite
(Elsevier Science BV, 2005)The adsorption of Acid Red 57 (AR57) onto surfactant-modified sepiolite was investigated in aqueous solution in a batch system with respect to contact time, pH and temperature. The surface modification of surfactant-modified ... -
Removal of phenolic compounds with nitrophenol-imprinted polymer based on pi-pi and hydrogen-bonding interactions
(Elsevier Science BV, 2004)This work describes a method for the removal of phenolic compounds with a nitrophenol-imprinted polymer from aqueous solution by newly functional monomer, methacrylamidoantipyrine (MAAP), which has pi-pi, and hydrogen-bonding ... -
Topological phase in a non-Hermitian PT symmetric system
(Elsevier Science BV, 2015)In this work, we consider a tight binding lattice with two non-Hermitian impurities. The system is described by a non-Hermitian generalization of the Aubry-Andre model. We show that there exists topologically nontrivial ... -
Electrochemical synthesis of poly(2-iodoaniline) and poly(aniline-co-2-iodoaniline) in acetonitrile
(John Wiley & Sons Inc, 2003)Poly(2-iodoaniline) (PIANI) and poly(aniline-co-2-iodoaniline) [P(An-co-2-IAn)] were synthesized by electrochemical methods in acetonitrile solution containing tetrabutylammonium perchlorate (TBAP) and perchloric acid ... -
PT symmetric Aubry-Andre model
(Elsevier, 2014)PT symmetric Aubry-Andre model describes an array of N coupled optical waveguides with position-dependent gain and loss. We show that the reality of the spectrum depends sensitively on the degree of quasi-periodicity for ... -
Self-accelerating matter waves
(World Scientific Publ Co Pte LTD, 2015)The free particle Schrodinger equation admits a nontrivial self-accelerating Airy wave packet solution. Recently, the Airy beams that freely accelerate in space was experimentally realized in photonics community. Here, we ... -
PT symmetric Floquet topological phase
(Springer, 2015)In this paper, we study the existence of Floquet topological insulators for PT symmetric non-Hermitian Hamiltonians. We consider an array of waveguide in 1D with periodically changing non-Hermitian potential and predict ... -
Investigation of the structure of and the properties of the potentially tautomeric 1,2,3,4-tetrahydro-5,7-dimethyl-6H-pyrrolo[3,4-d]pyridazine-1,4-diones in the gaseous and aqueous phases using the AM1 semi-empirical method
(Elsevier Science BV, 1998)Potentially tautomeric 1,2,3,4-tetrahydro-5,7-dimethyl-6H-pyrrolo[3,4-d]pyridazine-1,4-diones and their fixed tautomeric forms have been studied in order to predict their tautomeric equilibrium constants and pK(a) values ... -
A Semi-Empirical and Density Functional Theory Study of 2,2 ',3,4-Tetrahydroxy-3 '-sulpho Azobenzene Derivatives and Their Zirconium Complexes
(Asian Journal Of Chemistry, 2013)In this study, certain theoretical properties of three tetrahydroxyazo derivatives and their zirconium complexes, such as stability, reactivity, geometry and energy have been calculated by MOPAC2009 with the PM6 method and ... -
Preconcentration of copper on ion-selective imprinted polymer microbeads
(Elsevier Science BV, 2003)Molecular recognition-based separation techniques have received much attention in various fields because of their high selectivity for target molecules. Molecular imprinting has been recognized as a promising technique for ... -
Mimicking receptor for methylmercury preconcentration based on ion-imprinting
(Elsevier Science BV, 2007)Solid-phase extraction (SPE) based on molecularly imprinted polymers (MIPs) were used to develop selective separation and preconcentration for methylmercury ion from complex matrixes. In this study, an ion-imprinting polymer ... -
A new metal chelate affinity adsorbent for Cytochrome c
(Wiley, 2004)We have prepared a novel metal-chelate adsorbent utilizing N-methaeryloyl-L-histidine methyl ester (MAH) as a metal-chelating ligand. MAH was synthesized by using methacryloyl chloride and L-histidine methyl ester ... -
Molecularly imprinted ligand-exchange recognition assay of glucose by quartz crystal microbalance
(Elsevier Advanced Technology, 2005)Molecular imprinted polymers (MIP) as a recognition element for sensors are increasingly of interest and MIP-quartz crystal microbalance (QCM) have started to appear in the literature. In this study, we have combined quartz ...