کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
626496 | 882870 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Use of CaCl2 modified bentonite for removal of Congo red dye from aqueous solutions Use of CaCl2 modified bentonite for removal of Congo red dye from aqueous solutions](/preview/png/626496.png)
CaCl2 modified bentonite (BCa2+), a clean and cost-effective adsorbent with a basal spacing of 15.43 Å, was prepared for the removal of Congo red dye from water. It was effective for the removal of Congo red with a high adsorption capacity, and the adsorption was favored over a broad pH range (5–10). The pseudo-second-order kinetic model provided the best correlation of the experimental data. Adsorption isotherms indicated that sorption took place at specific homogeneous sites within the adsorbent. Furthermore, BCa2+ showed higher sorption capacity compared with other common materials used as adsorbents for Congo red dye. The results showed that BCa2+ could be employed as a low-cost material for the removal of Congo red from aqueous solutions.
Journal: Desalination - Volume 249, Issue 2, 15 December 2009, Pages 797–801