کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
580192 | 1453144 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Using resin supported nano zero-valent iron particles for decoloration of Acid Blue 113 azo dye solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
In this study, a synthesized cation exchange resin supported nano zero-valent iron (NZVI) complex forming NZVI-resin was proposed for the decoloration of an azo dye Acid Blue 113 (AB 113), taking into account reaction time, initial dye concentration, NZVI dose and pH. From results, the successful decoloration of the AB 113 solution was observed using a NZVI-resin. Increasing the iron load to 50.8 mg gâ1, the removal efficiencies of the AB 113 concentration increased exponentially. With an initial dye concentration of 100 mg lâ1 and nano iron load of 50.8 mg gâ1, the best removal efficiencies were obtained at 100 and 12.6% for dye concentration and total organic carbon, respectively. Color removal efficiency was dependent on initial dye concentration and iron load. Moreover, the removal rates followed modified pseudo-first order kinetic equations with respect to dye concentration. Thus, the observed removal rate constants (k) were 0.137-0.756 minâ1 by NZVI loads of 4.9-50.8 mg gâ1. Consequently, the NZVI-resin performed effectively for the decoloration of AB 113 azo dye, offering great potential in the application of NZVI-resins in larger scale column tests and further field processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 184, Issues 1â3, 15 December 2010, Pages 499-505
Journal: Journal of Hazardous Materials - Volume 184, Issues 1â3, 15 December 2010, Pages 499-505
نویسندگان
Hung-Yee Shu, Ming-Chin Chang, Chi-Chun Chen, Po-En Chen,