مشاركة
تحضير بعض صبغات الازو المشتقة من البروكائين ودراسة امتزازها بالكاربون المنشط المحضر من نوى النبق المحلي == Synthesis of some azo dyes derived from Procaine and study the adsorption of these dyes by activated carbon prepared from local Z.spina - christi fruits pits
اسم المؤلف:
عبد الله عبد اللطيف عبد الله الخلف
اسم المشرف:
طارق زباري جاسم
الموضوع العام:
علوم الكيمياء
السنة:
2015
الموضوع الدقيق:
الكيمياء
الدرجة:
ماجستير
الجامعة:
جامعة البصرة - كلية التربية للعلوم الصرفة - قسم الكيمياء
اللغة:
العربية
مكان الجامعة:
البصرة
الصفحات الاولى:
25T1609 - p.pdf
المستخلص:
Activated carbon was prepared from Ziziphus Spina - Chisti fruit pits, which is locally available in Iraq, the purpose of this study is to search for surface that are highly applicable for dye adsorption to treat the pollution of aqueous solution in nature.Four azo dyes were synthesized in our laboratory from the reaction of Prodain Hydrochloride with Cromotropic acid, Pyridoxal Hydrochloride, Pyridoxine and 4 - Amino - 5 - hydroxy naphthalene - 2,7 - disalphonic acid via diazonium ions. UV - Visible and FT - IR spectra, characterized these dyes (D1, D2, D3 and D4).The different variable affecting the adsorption capacity of the activated carbon prepared such as contact time, initial dye concentration in feed solution, pH of the medium, weight of adsorbent and temperature were investigated on a batch process mode.Spectroscopic technique was used for the measurement of dyes before and after adsorption. The optimum contact time to attain equilibrium is (6)hr, the maximum percentage removal for D1&D4 occurred at pH 4 while D2 at pH 11 and D3 at pH 6.1. Ar =II The experimental data of adsorption were fitted to two different isotherms, namely Langmuir and Freundlich these isotherms equation were applied at different temperatures. The results obtained showed that the Freundlich isotherm equation is better fitted to the experimental data than the Langmuir isotherm equation. The adsorption kinetic was found to follow the pseudo second order kinetic expression
