The classical unbound motion of an ion in an electrostatic dipole field V=fecos0/r 2 has been solved for analytically and displays many very interesting features. In addition to total energy E and the azimuthal angular momentum p^, a~pQ 2 +pQ 2 /sin 2 d + 2mkecosd is also conserved. For all potentials of the form F(6, 4>)/r 2 , r 2 is a symmetric quadratic function of time. For the fixed point dipole problem, r 2 (r) = 2Er 2 /m + a/2Em; both E, a > 0 for scattering orbits. For meridan plane motion (/>0 = O), the polar angle 0(r) is expressed in terms of Jacobian elliptic functions. Special attention is paid to turning points and to the specification of asymptotic orbits via energy, impact parameter &, and initial asymptotic angle %= 0(-°°). Representative meridian plane orbits are shown and scattering angle discussed as a function of Eb 2 . For general nonplanar scattering (p^^O), limitations on the range of 6 arise, as in the related problems of the spherical pendulum and symmetric heavy top. Azimuthal angle 4>(T) is expressed as an incomplete elliptic integral of the third kind: ir(x,p) = S*du/{1-P 2 sn 2 w), which can usefully be expressed in terms of theta functions. Thus the simplest case of classical ion-dipole scattering is already quite complex as regards solution by analytical means.
ABSTRACT. ZnO materials act as a Photocatalytic reaction and it leads to partial or complete mineralization or decolorization of organic pollutants. Upon irradiation with UV/visible light, semiconductors catalyze undergoes redox reactions in presence of air/O 2 and water. In the present study Zinc oxide (ZnO) was doped with activated carbon prepared from the stem of the plant material by chemical activation namely, Vitex negundo stem carbon (VNC). The decolourisation and degradation study of a dye namely, methylene blue (MB) was carried out to find out the efficiency of catalytic property of ZnO/VNC. The reaction was performed at 20, 40, 60 ppm solute ZnO/VNC ion at 10 min interval of time. It found that the prepared ZnO / VNC composite exhibits an enhanced Photocatalytic activity for MB degradation under visible light irradiation and its photo catalysis efficiency was analyzed in specific 663 nm λ max using a UV-vis-spectrophotometer. The surface morphology and functional group present in the ZnO/VNC material was characterized by using FT-IR, SEM and XRD. The result reveals that the ZnO/VNC structure consists of irregular aggregates with rough surfaces and high photodegradation activities of ZnO/VNC on MB solutions are found to be at 20ppm. The ZnO/VNC may be used as an alternative adsorbent to remove MB from aqueous solutions.
A novel dichlorodi(E)-N′-(4-methoxybenzylidene)benzohydrazide manganese(II) (ENMB-Mn) complex has been successfully synthesized
using (E)-N′-(4-methoxybenzylidene)benzohydrazide (ENMB) as ligand. The structure of the ENMB-Mn complex was studied by single
crystal X-ray diffraction, UV-Visible, FTIR, thermogravimetric analysis (TGA) and Hirshfeld surface analysis. Results of single crystal
X-ray diffraction found that the structure of ENMB-Mn complex crystal is triclinic with space group P-1 and lattice parameters of unit cell
a, b and c values were 7.1900 Å, 8.9094 Å and 11.8130 Å, respectively. The structure of ENMB-Mn complex clearly indicates complete
octahedral geometry [Mn(ENMB)2Cl2] with manganese(II) ion, where the ENMB and chlorine atoms ratio is 1:2:2, respectively. Further,
the molecular properties like Hirshfeld surface analysis mapping are reported.
ZnO materials act as a Photocatalytic reaction and it leads to partial or complete mineralization or decolorization of organic pollutants. Upon irradiation with UV/visible light, semiconductors catalyze undergoes redox reactions in presence of air/O2 and water. In the present study Zinc oxide (ZnO) was doped with activated carbon prepared from the stem of the plant material by chemical activation namely, Vitexnegundo stem carbon (VNC). The decolourisation and degradation study of a dye namely, methylene blue (MB) was carried out to find out the efficiency of catalytic property of ZnO/VNC. The reaction was performed at 20, 40, 60 ppm of dye solution with ZnO/VNC material at 10 min interval of time. It found that the prepared ZnO / VNC composite exhibits an enhanced Photocatalytic activity for MB degradation under visible light irradiation and its photo catalysis efficiency was analyzed in specific 663 nm λ max using a UV–vis-spectrophotometer. The surface morphology and functional group present in the ZnO / VNC material was characterized by using FT-IR, SEM and XRD. The result reveals that the ZnO/VNC structure consists of irregular aggregates with rough surfaces and high photodegradation activities of ZnO/VNC on MB solutions are found to be at 20ppm. The ZnO/VNC may be used as an alternative adsorbent to remove MB from aqueous solutions.Keywords: Methylene blue (MB), ZnO / VNC, FT-IR, SEM, XRD
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