首页> 外文期刊>Journal of Environmental Science and Technology >Removal of Congo Red from Aqueous Synthetic Solutions Using Silica Gel Immobilized Chlorophyta Hydrodictyon Africanum
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Removal of Congo Red from Aqueous Synthetic Solutions Using Silica Gel Immobilized Chlorophyta Hydrodictyon Africanum

机译:使用硅胶固定的非洲水生绿藻从合成水溶液中去除刚果红

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A silica gel-chlorophyta hydrodictyon africanum biosorbent with improved mechanical properties was prepared and used in the removal of Congo Red (CR) from synthetic aqueous solutions. Batch sorption studies of the acidic dye showed that a maximum of 50.11 mg g-1 of the dye could be adsorbed under optimum conditions. Results show that maximum CR adsorption lie within the pH range 4-6. Above pH 6, the adsorption capacity dropped drastically to about 10.00 mg g-1 at pH 8. Kinetic data was simulated on three models and the pseudo-second order model gave a better fit with R2 greater than 0.98. Equilibrium studies show that the adsorption of CR is best described by the Langmuir isotherm.
机译:制备了具有改善的机械性能的硅胶-绿藻类非洲生物吸附剂,并将其用于从合成水溶液中去除刚果红(CR)。酸性染料的批吸附研究表明,在最佳条件下,最多可吸附50.11 mg g -1 染料。结果表明,最大的CR吸附在4-6的pH范围内。 pH大于6时,在pH 8时,吸附容量急剧下降至约10.00 mg g -1 。在三个模型上模拟了动力学数据,拟二级模型更适合R 2 大于0.98。平衡研究表明,Langmuir等温线最好地描述了CR的吸附。

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