Abstract The rapid removal of dye effluent containing two or more dyes is in demand due to its significant environmental issues. The present communication deals with the simultaneous adsorption of Reactive red 195 (RR195) and Reactive yellow 145 (RY145) from a textile dye effluent in a binary component system. Cobalt ferrite-alginate nanocomposite synthesized by ex-situ polymerization was employed as an adsorbent for the removal of binary dye effluent. The first order derivative spectrophotometric method was applied for the simultaneous quantification of RR195 and RY145 in binary solutions. The binary adsorption equilibrium could be achieved within 60 min, and the adsorption process followed pseudo second order kinetics. The removal efficiency could be maintained in a wide pH range of 3–6. The presence of amine, hydroxyl, carbonate and ferrite groups on the adsorbent surface played a vital role in the removal of RR195 and RY145 from their binary mixture. The continuous adsorption experiments revealed that the breakthrough time and exhaustion time increases with an increase in the bed height. The experimental results present new sustainable, cost effective biocompatible nanocomposite as a potential adsorbent for the removal of real-time dye effluent. Moreover, it is magnetically separable and reusable. The cobalt ferrite-alginate as a sole nanocomposite is capable of eliminating the whole dye content from a mixture and serves as a better solution for effective water remediation.

中文翻译：

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铁酸钴-海藻酸钴纳米复合材料同时去除纺织废水中的二元染料：性能和机理

摘要 由于其严重的环境问题，需要快速去除含有两种或多种染料的染料废水。本通讯涉及在二元组分系统中从纺织染料流出物中同时吸附活性红 195 (RR195) 和活性黄 145 (RY145)。通过异位聚合合成的钴铁酸盐-藻酸盐纳米复合材料被用作去除二元染料流出物的吸附剂。一阶导数分光光度法用于同时定量二元溶液中的 RR195 和 RY145。二元吸附平衡可在 60 分钟内实现，吸附过程遵循准二级动力学。去除效率可以保持在 3-6 的宽 pH 范围内。胺、羟基的存在，吸附剂表面上的碳酸盐和铁酸盐基团在从二元混合物中去除 RR195 和 RY145 方面发挥了至关重要的作用。连续吸附实验表明，随着床层高度的增加，穿透时间和耗尽时间增加。实验结果展示了新的可持续的、具有成本效益的生物相容性纳米复合材料作为去除实时染料流出物的潜在吸附剂。此外，它是可磁性分离和可重复使用的。铁氧体-藻酸钴作为唯一的纳米复合材料，能够从混合物中去除全部染料含量，是有效修复水的更好解决方案。连续吸附实验表明，随着床层高度的增加，穿透时间和耗尽时间增加。实验结果展示了新的可持续的、具有成本效益的生物相容性纳米复合材料作为去除实时染料流出物的潜在吸附剂。此外，它是可磁性分离和可重复使用的。铁氧体-藻酸钴作为唯一的纳米复合材料，能够从混合物中去除全部染料含量，是有效修复水的更好解决方案。连续吸附实验表明，随着床层高度的增加，穿透时间和耗尽时间增加。实验结果展示了新的可持续的、具有成本效益的生物相容性纳米复合材料作为去除实时染料流出物的潜在吸附剂。此外，它是可磁性分离和可重复使用的。铁氧体-藻酸钴作为唯一的纳米复合材料，能够从混合物中去除全部染料含量，是有效修复水的更好解决方案。