Enhancement of Remazol Brilliant Blue R Adsorption Capacity by using Modified Clinoptilolite

سال انتشار: 1394
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 386

فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_IJEE-7-2_007

تاریخ نمایه سازی: 15 شهریور 1395

چکیده مقاله:

In this study, the adsorption behavior of Remazol Brilliant Blue R (RBBR) from aqueous solution by using raw and modified clinoptilolites were investigated. In the experimental work, raw clinoptilolite (R-CL) was treated with Zn(NO3)2 in ethanol and produced zinc-grafted clinoptilolite (Zn-CL).The adsorption experiments were carried out under different conditions of initial concentration (25-250 mg/L), adsorption time (0-2h), solution pH (2-12), and temperature (300-353 K) to determine optimum conditions for the highest RBBR removal. The influence of these parameters on the adsorption capacity was studied using the batch process. The results indicated that the solution pH was observed to be a key factor of the RBBR adsorption process. The maximum dye adsorption was achieved with Zn-CL adsorbent at pH~6 and the corresponding adsorption capacity was found to be 42.2 mg/g, which was higher than R-CL (12.5 mg/g). Lower adsorption capacity of RBBR was found by Zn-CL between pH 8 and 12 opposite to R-CL which showed a marginal increase in adsorption capacity within the same pH range. The results proved that Zn-CL which is a modified clinoptilolite is an effective adsorbent for the removal of RBBR from aqueous solution.

کلیدواژه ها:

نویسندگان

R Alrozi

Faculty of Chemical Engineering, UniversitiTeknologi MARA Pulau Pinang, ۱۳۵۰۰ PermatangPauh, Penang

N.S Anuar

Faculty of Chemical Engineering, UniversitiTeknologi MARA Pulau Pinang, ۱۳۵۰۰ PermatangPauh, Penang

F Senusi

Faculty of Chemical Engineering, UniversitiTeknologi MARA Pulau Pinang, ۱۳۵۰۰ PermatangPauh, Penang

M.A Kamaruddin

School of Civil Engineering, UniversitiSains Malaysia, ۱۴۳۰۰ NibongTebal, Penang