Iraqi National Journal Of Chemistry

This work is focused on the photocatalytic decolorization of dispersive yellow
42 dye as textile dye. The decolorization of this dye was done in present the
suspension solution of the commercial ZnO and the artificial light (high
pressure mercury lamp) type 125 Watt as UV-A source at light intensity equal
to 1.48 x 10-7 Ensien. s-1. The kinetic study for photocatalytic decolorization
process of this dye was obeyed to pseudo-first order. The optimal variations
for the decolorization of the studied dye at 25 mg/L were found. The best
dose of ZnO is equal to 300 mg/100 mL and the maximum value of the initial
pH of an aqueous solution is 7.7. Moreover, the effect of temperature was
studied; and found that the photoreaction was endothermic and non
spontaneous. The apparent activation energy is small value, that make the
photoreaction of this dye is fast.

In this study bacteria isolated from mobile phones of male and female Doctors
worked in Baghdad hospitals which include Sheikh Zayed Hospital, Ibn al-Nafis
hospital, Al-Yarmouk Hospital, Al-Karama Hospital, Medical City Hospital, and Al
Nu'man Hospital. Seventy samples collected from different specialty and sex. The
result of the present study shows the isolation percentage for Male was 54% and for
Female was 46%. The number and types of bacteria differ with the sex and specialty.
T-test show the existent of significance differences (p<0.01) between the number of
bacterial colonies and specialty. One hundred isolates were identified, 64 were normal
flora of skin which was 22 isolates of Staphylococcus epidermidis, formed 22% and
42 isolates of Bacillus spp. formed 42% from all isolated. The remaining isolated 36
were pathogenic bacteria, included seven genus Staphylococcus aureus 20 (20%),
Pseudomonas aeruginosa 6 (6%), Bacillus subtilis 2, Streptococcus spp. 2,
Escherichia coli 2, Micrococcus lutes 2, and Klebsiella pneumonia 2 Formed (2%).
respectively.
The antimicrobial susceptibility test shows the most isolate were sensitive to (LEV
5, APM 10, T 30, SXT 25) and resistance to (AMC 30, CX 5, CL 30) with some
exception. The susceptibility test of Staphylococcus aureus to Oxacillin appeared the
predominant of (OSSA) which form 75% whereas the percentage of (ORSA) was
25% from all Isolates of Staphylococcus aureus.

Synthesized and characterization of new sulfonamide derivatives ( schiff
base , ,azo , azide, chalcone and 1,2,3- triazole) derived from (1, 1- bis (4
aminophenyl) cyclohexane [A1] ). The synthesis compound [A2] include the
reaction of compound [A1] with Toluene -4- Sulfonyl chloride while the azo
compound
[A3] produce from the reaction of diazonium salt with
salicylaldehyde , then the azo compound [A3] were converted to chalcone
derivative [A4] by reaction the azo compound [A3] with acetophenone .
Afterward reflux the azo compound with 2-amino pyrimidine to formation
schiff base [A5] . Azide derivative [A6] synthesized via the reaction of
diazonium salt with sodium azide . The new 1,2,3- triazole derivatives
[A7,A8] were obtained from treatment azide compound[A6] with each ethyl
acetoacetate and acetyl acetone ,respectively . The structures of the
compounds were confirmed by 1HNMR, 13CNMR, FT-IR spectroscopy and
(C.H.N.) elementary analysis. The synthesis compounds were evaluated1
for1antibacterial1(Staphylococcus1aureus , Becillus Cereus, Escherichia1coli,
Pseudomonas1aeruginosa1and
1anti-fungal1 (Aspergillus1niger1 and Aspergillus1 fumigatus1by serial dilution1 method.