Published Journal Articles
2020
Degradation of Congo Red Dye Using Homogeneous Photo Fenton Catalyst Coupled with Oxygen Kinetics and Statistical Analysis
2020-06
Asian Journal of Applied Chemistry Research (Issue : 1) (Volume : 6)
Experimental design DoE (box behnken design BBD) and statistical analysis approaches were
employed to determine the effect of Congo red dye (C.R) concentration, photo catalyst dose (Fe+2)
and follow of oxygen gas as an oxidant on the degradation of C.R. The results show that the
concentration oppositely affects the degradation yield whereas the remaining two factors show
positive effect, throughout all experiments oxygen molecule shows crucial role in their positive
effect with p-value about 0.01 which is very significant value. The accepted regression model was
linear with significance p-value 0.032 that mean all factors show good agreement in linear
relationship and the interactions was not important. Degradation kinetics was also applied to
investigate the effect of increasing dye concentration on degradation rate constant with and without
photo catalyst dose and oxidant (O2). It appears that the degradation of peak at 498nm is second
order The result was in good agreement with that of statistical analysis that are 0.0435, 0.0545 and
5.4 M-min with photo catalysis 12, 8 and 4 PPM dye, 4O2 mL/min,20PPM Fe+2 respectively, in
case without photocatalyst the results were 0.0025 and 0.0207 M-min-with 12 and 4 PPM in turn.
Carbon Nanotubes for Removal of Fast Green Dye
2020-04
International Research Journal of Pure & Applied Chemistry (Issue : 5) (Volume : 21)
The adsorption of Fast Green (FG) dye on pristine multi-walled carbon nanotubes (CNTs) was
investigated in this study. The adsorption was carried out under different operating conditions. The
operating conditions were contact time, adsorbent dosage, initial dye concentration, the pH of the
solution and temperature. The analysis of results found that the removal percentage of FG dye on
CNTs decreases with increase in initial FG concentration. It was found that the increasing of CNTs
dosage enhanced the efficiency of dye removal. It was also found that the increasing of temperature
significantly enhanced the removal percent of FG dye and it is indicated that the adsorption of FG
dye on CNTs was in endothermic nature. The study reports that the best pH of solution for the
adsorption of FG on CNTs were 4. The adsorption data have been analyzed using Langmuir and
Freundlich. Fitting the equilibrium adsorption data by Langmuir and Freundlich models shows that
experimental data well explained by the Langmuir equation.
SYNTHESIS, IDENTIFICATION AND BIOLOGICAL ACTIVITY OF NEW HETEROCYCLIC COMPOUNDS FROM REACTION OF NEW SCHIFF-BASES WITH PHATHALIC ANHYDRIDE
2020-03
Science Journal of University of Zakho (Issue : 1) (Volume : 8)
Series of new Schiff bases and their derivatives (Oxazepine) have been synthesized during two steps. The first step synthesis of
imines derivatives (1-10) by the condensation reaction of 1, 7-diaminohepatane and 1,8-diaminooctane with different substituted
aromatic aldehydes by using glacial acetic acid as catalyst. The second step includes reaction of the prepared Schiff bases
derivatives with phathalic anhydride in dry benzene to obtain seven -membered heterocyclic ring derivatives (1 1-15). The
biological activities of some prepared compounds were also studied against different kinds of bacteria. The new derivatives were
confirmed by suing a range of experimental techniques including 1HNMR, 13C NMR, IR and Mass spe ctra.
2019
Synthesis, Identification and Biological Activity of some Schiff Bases derived from 1,5-diamino naphthalene substrate
2019-09
Research Journal of Chemistry and Environment (Issue : 9) (Volume : 23)
New Schiff base compounds have been prepared.
Various aliphatic and aromatic ketones were
condensed with naphthalene-1, 5-diamine to yield the
desired Schiff bases. The structures of all the new
products obtained in the present work are supported by
spectral and analytical data (IR, NMR and Mass
spectroscopy).
Furthermore, the biological activity of Schiff Bases
compounds was tested against two types of bacteria
gram positive for the dye (Staphylococcus aureus) and
gram-negative dye (E.Coli).
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