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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Kinetic, isotherm and thermodynamic studies for removal of methyl orange using a novel beta-cyclodextrin functionalized graphene oxide-isophorone diisocyanate composites
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Kinetic, isotherm and thermodynamic studies for removal of methyl orange using a novel beta-cyclodextrin functionalized graphene oxide-isophorone diisocyanate composites

机译：动能,等温线和热力学研究去除甲基橙使用一部小说beta-cyclodextrin功能化石墨烯oxide-isophorone二异氰酸酯复合材料

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摘要

A novel beta-cyclodextrin functionalized graphene oxide-isophorone diisocyanate composite (GO-IPDI-CDs) was prepared with graphene oxide (GO), isophorone diisocyanate (IPDI) and beta-cyclodextrin (beta-CD) as raw materials. The structure and morphology of GO-IPDI-CDs were characterized by Fourier transform infrared spectroscopy (FT-IR), Brunauer Emmett Teller (BET), Raman, scanning electron microscopy (SEM), X-ray diffractometer (XRD) and thermogravimetric analysis (TG). The GO-IPDI-CDs was applied to deal with wastewater solution containing dye of methyl orange. The effects of environment factors (such as temperature, pH and so on) to methyl orange adsorption were investigated in details. The results showed that GO-IPDI-CDs has a highest adsorption efficiency of 92.88% and adsorption capacity of 83.40 mg/g at the optimum conditions (0.020 g/mL of dosage of GO-IPDI-CDs, temperature of 45 degrees C, a time of 2.5 h and pH= 6.0). Adsorption kinetics, adsorption isotherm and adsorption thermodynamic were investigated. Pseudo second-order kinetics equation can describe the adsorption process appropriately. Langmuir and Freundlich isotherm models were used to simulate the equilibrium data and the results showed that the equilibrium data were close to Langmuir model. The thermodynamic parameters indicated that the adsorption process was endothermic. The proposed method has been successfully applied to adsorb methyl orange in water samples with satisfactory result. (C) 2015 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
机译：一种新型beta-cyclodextrin功能化石墨烯oxide-isophorone二异氰酸酯复合(GO-IPDI-CDs)制备了氧化石墨烯(去)、异佛尔酮二异氰酸酯(IPDI)和beta-cyclodextrin (beta-CD)为原料。GO-IPDI-CDs的结构和形态傅里叶变换红外的特征光谱(红外光谱)、Brunauer艾美特出纳员(赌),拉曼、扫描电子显微镜(SEM),x射线衍射仪(XRD)和热重分析(TG)。处理含染料废水的解决方案甲基橙。(如温度、pH值等)甲基橙色吸附研究细节。结果表明,GO-IPDI-CDs最高吸附和吸附效率92.88%容量83.40毫克/克的最佳条件(0.020 g / mL GO-IPDI-CDs用量、温度45度,时间为2.5 h和pH = 6.0)。吸附动力学、吸附等温线吸附热力学研究。伪二阶动力学方程适当地描述吸附过程。朗缪尔和弗伦德里希等温线模型模拟平衡数据和结果表明,平衡数据接近朗缪尔模型。表明吸附过程吸热的。成功地应用于吸附甲基橙水样与令人满意的结果。化学工程师的机构。由爱思唯尔帐面价值保留所有权利。

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