Institute of Chemistry, University of Punjab, Lahore, Pakistan.
J Anal Methods Chem. 2012;2012:405980. doi: 10.1155/2012/405980. Epub 2012 Mar 27.
The sorption studies of coomassie brilliant blue (CBB) from aqueous solution have been carried out on wheat bran (WB). Coomassie brilliant blue on wheat bran was used to study the adsorption behavior under various parameters such as pH, dosage amount, and contact time. It was observed that under optimized conditions up to 95.70% dye could be removed from solution onto WB. Langmuir and Freundlich adsorption isotherms were used to elaborate the results. Freundlich model was found to be fitted well and favored multilayer adsorption. The Freundlich constants n and KF were determined as 0.53 and 2.5 × 10(-4). Thermodynamic parameters such as ΔG, ΔH, and ΔS studied were taking into account, showed spontaneous and favorable reaction for coomassie brilliant blue on wheat bran. The maximum adsorption capacity q(m) was found to be 6.410 mg/g. The investigations show that non treated WB is a low-cost adsorbent for the removal of dyes from textile industry effluents.
从水溶液中对考马斯亮蓝（CBB）的吸附研究已经在麦麸（WB）上进行。用麦麸上的考马斯亮蓝研究了各种参数（如 pH 值、用量和接触时间）下的吸附行为。结果表明，在最佳条件下，高达 95.70%的染料可以从溶液中被去除到 WB 上。使用 Langmuir 和 Freundlich 吸附等温线来详细说明结果。发现 Freundlich 模型拟合得很好，有利于多层吸附。确定 Freundlich 常数 n 和 KF 分别为 0.53 和 2.5×10(-4)。考虑了热力学参数，如ΔG、ΔH 和ΔS，表明考马斯亮蓝在麦麸上的反应是自发和有利的。最大吸附容量 q(m) 被发现为 6.410 mg/g。研究表明，未经处理的 WB 是一种从纺织工业废水中去除染料的低成本吸附剂。
