THE APPLICATION OF CHEMISTRY IN ENVIRONMENT
Year:2011 | Volume:2 | Issue:8|Papers Count:8

Tetrazole functionary is a popular substation for the carboxylic acid group in the drug research field. The drug molecules containing tetrazole group have a long half time in living organism. In addition, four nitrogen atoms of tetrazole offer a greater opportunity in hydrogen bond doner acceptor interactions. In this research work, we described synthesis of new compounds of these families. Using isonicotin aldehyde and hydroxyIamine- hydrochloride in the pyridine, solvent was converted to 4-pyridine carbaldehyde oxime (compound l). Then water absorption process with anhydride acetic. Organize isonicotin nitrile (2). The 4-(2H-tetrazole-5-yl) pyridine (compound 3) was synthesized by [3+2] cyclo addition reaction between compound 2 and NaN3, NH4CI, DMF at 110oC. The structures of all synthesized compounds were investigated by FT-IR and 1 H NMR spectroscopes.

One of the most effective methods for degradation of Phenolic compounds is chemical Oxidation that also contains Ozonation.Our case was dinitrobutyle phenol (DNBP) that was 30 min under the process of Ozonation.Ozonation of dinitrobutyle phenol (DNBP) in constant concentration and three different pH (10, 5.8, 2.8) were studied. Result showed that highest degradation in neutral and alkaline occurs.

The use of nano technology for decrease the dangerous effect of environmental pollution is the one of management method one of the case that releases the effect of application of this method is water. In this paper introduced the application of nano technology in water industries and then selected the best method.

According to Montmorillonite (MMT) hydrophilic properties, its modification process by one cationic polymer, poly vinyl sulfonic acid (PVSA Na), with different mixing times was carried out and then the best preparation condition was selected with FTIR analysis. In the next step, inset copolymerization of Acryl amide and Ethylacrylate in MMT was improved and nano composite was synthesized. The nano composite was characterized by FTIR spectrometry and XRD methods. The most conversion value was gained for MMT/PVSNa/ Acry Amide/ Ethy Acrylate nano composite that had the equal molar ratio.

Electro chemical properties of cathode materials are strongly dependent on the synthesis is method. While solid- state method shave been widely used, but problems such as non-homogeneous, non-uniform morphology, size large, low control over Astkyvmtry long time and has led researchers to look for other techniques, such as calcinations ol-gelsynthesis. This method Brtry haybeaslowcalcination temperature, production time and less likely to producesub-micron particle sizes and uniform particle size of the solid-state methods. The high surface area nano sized particles compared with micron particles increases the potential for discharge. In this paper the synthes is and characterization of cathode materials for lithium ion batteries used in cathode pay.

The sonolysis combined with ozonolysis degradation of dinitrobotyle phenol in aqueous solution, by using nano particles of titanium dioxide as catalyst.Test accomplished in ultra-sonic machine in 60 khz frequency and with injecting ozone gas in 3 mg/I. Combinational processes and increasing amounts of oxide added, results substantial damage. Under optimum conditions (0.2 g/l of Titanium dioxide Nan oparticles) destruction efficiency was 99.89 percent. The kinetic studies revealed that the sonolysis combined with ozonolysis degradation of DNBP followed pseudo- first-order kinetics with respect to dinitrobotyle phenol (DNBP). These experiments showed that the treatment of Copley Svnvlyz with ozone in the presence of titanium dioxide is a promising technology for treating this type of pollution.

The photo catalytic properties ofTiO2 nano particles (purched from Degussa) were investigated via acid salicylic as a model organic compound under UV light irradiation. The influence of operating parameters on acid salicylic degradation including the amount of TiO2 catalyst, pH value of solutions, acid salicylic concentration and the temperature was thoroughly examined. The photo degradation efficiency decreases with the increase in the amount of TiO2 photo catalyst. The photo catalyst capacity of TiO2 towards the salicylic acid solutions strongly depends on the pH of acid salicylic solutions, and the acid salicylic solutions catalyzed by TiO2 nano-particles have good photo degradation efficiency at an acidic pH values. The photo degradation ratios of acid salicylic solutions ascend with the increase of the acid salicylic concentration from 10 to 50 mg/L.

Simulations of tware in the system of gas velocity input and the amount of retained gas in reactors Air or Air Lifts. Model that rays this simulation was chosen with the condition of mass transfer can also be a liquid phase used. But in general, the program is oriented to the empirical equation of a reactor using different relations of by neural networks is developed for the solution of other answer is. Comparison between the original model and simulation model for a variety of nozzles single-input, multi-input 1 and 2 have also been made.