October 2012

Synthesis and characterization of (Thallium-Tin) doped Bismuth based superconducting materials

  Doping with combinations of Tl0.3-xSnx in a certain concentration range enhances the zero resistivity temperature Tc(0) from 104 to 108K. Both high-Tc (2223) and Low-Tc (2212) phases were detected by the X-ray diffraction analysis. However the low-Tc phase is found to dominate over the high-Tc phase with the increase in Sn content. Critical temperatures were determined by the electrical resistivity...

Author(s):   Rashid Mahmood and Muhammad Javed Iqbal        

October 2012

Kinetic and thermodynamic studies on the adsorption behavior of Rhodamine B dye onto animal bone meal

  Removal of Rhodamine B from aquoeus media was achieved onto animal bone meal (ABM) as a new low cost adsorbent. The latter was characterized by Infra-Red and X-ray diffraction. The adsorption of Basic Red 46 occurred by studying the effect of adsorbent amount, dye concentration, contact time and temperature. The adsorption rate data were analyzed using the pseudo-first order and the pseudo...

Author(s):   Mohammadine El Haddad