University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran.
University of Tehran, University College of Science, School of Chemistry, PO Box 14155-6455, Tehran, Iran.
Bioresour Technol. 2016 Oct;218:326-34. doi: 10.1016/j.biortech.2016.06.069. Epub 2016 Jun 28.
Ionic liquids are considered to be a class of environmentally friendly compounds as combination of them with bioresource polymeric substances such as; cellulose, constitute emerging coating materials. Biosorption by polymeric ionic liquids exhibits an attractive green way that involves low cost and irrespective of toxicity. As a result, a novel polymeric ionic liquid has been developed by the reaction of one step synthesized Fe3O4-cellulose nanohybrid, epichlorohydrin and 1-methylimidazole and employed as a green sorbent for efficient biosorption of Congo red dye. Effective parameters on dye removing as well as their interactions were determined with response surface methodology (RSM). Congo red adsorption showed fast equilibrium time (11min) with maximum uptake of 131mgg(-1). Isotherm study revealed that Langmuir adsorption model can better describe dye adsorption behavior. Regeneration of the sorbent was performed with a mixture of methanol-acetone-NaOH (3.0molL(-1)) solution.
离子液体被认为是一类环境友好型化合物，因为它们与生物资源聚合物物质（如纤维素）结合，构成了新兴的涂层材料。聚合离子液体的生物吸附表现出一种有吸引力的绿色方式，涉及低成本和无毒性。因此，通过一步合成的 Fe3O4-纤维素纳米复合材料、环氧氯丙烷和 1-甲基咪唑的反应，开发了一种新型聚合离子液体，并用作高效吸附刚果红染料的绿色吸附剂。用响应面法（RSM）确定了去除染料的有效参数及其相互作用。刚果红吸附具有快速的平衡时间（11 分钟），最大吸附量为 131mgg(-1)。等温研究表明，朗缪尔吸附模型可以更好地描述染料吸附行为。吸附剂的再生是用甲醇-丙酮-NaOH（3.0molL(-1)）溶液的混合物进行的。
