تأثير نسبة العامل الموجه سيتيل ثلاثي ميثيل أمونيوم بروميد (CTAB) وتأثير التحميل بالكبريتات بنسب مختلفة على خواص البنية النسيجية لجملة الأكسيد المشترك Al2O3/CdO المُحضر بالطريقة الهيدروحرارية

Abstract

    Three samples of Al₂O₃/CdO combined oxide with one molar ratio of Al₂O₃/CdO(1:0.25), and the effect of adding the guiding agent Cetyl tri methyl ammonium bromide (CTAB) with three molar ratios (0.1,0.25,0.5mol) were studied, by the hydrothermal method at a temperature (100^oC) for 7 hours, the symbol was given as HC_XAl₂O₃/CdO(1:0.25)₁₀₀, where X is the molar ratio of the guiding agent (CTAB). It was observed that the value of the specific surface area S_BET increased with increasing the molar ratio of the guiding agent from (0.1mol) to become almost constant after the ratio (0.25mol), where the S_BET reached 288 m²/g for the sample HC_0.5Al₂O₃/CdO(1:0.25)₁₀₀. The changes in the S_BET value are consistent with the changes in the micro pore volume V_o, monolayer capacity V_m, average pore volume Vmeso and C_BET constant values indicating weak affinity between the adsorbent and the adsorbent while the low adsorption energy E_o values indicate that the adsorption is of the physical type. The sample HC_0.5Al₂O₃/CdO(1:0.25)₁₀₀ was loaded with sulfate ions in different proportions (4,7,10wt%) by soaking method, the samples were given the symbol HC_0.5Al₂O₃/CdO(1:0.25)₁₀₀-S(y%), where y is the percentage of sulfate loaded a general decrease in the values of the S_BET was observed.