Investigation of Adsorption of Cobalt-phthalocyanine from Aqueous Waste Stream Using UVM-7/Ag

A. Vahid, M. Abdous, Shahnaz Nayyeri
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引用次数: 3

Abstract

The effect adsorption of cobalt-phthalocyanine-3,4’,4”,4”’- tetrasulfonicacid tetrasodium salt [Co(tsPc)-4•4Na+] onto UVM-7/Ag mesoporous material was investigated. In addition, X-ray diffraction (XRD), scanning electron microscopy (SEM), and nitrogen adsorptiondesorption measurement were used to examine the morphology and the microstructure of the obtained composite. Various parameters including solution adsorbent dosage, contact time, initial dye concentration and temperature were systematically studied. Equilibrium data fitted well the Langmuir models; moreover, the fitness suggests that the adsorption be monolayer and physical in nature. Kinetic studies showed that the adsorption process could be better described by the Lagergren pseudosecond- order models. Thermodynamic constant values (ΔG < 0, ΔH< 0 and ΔS< 0) demonstrated that the adsorption reactions of Co(tspc)-4 onto UVM-7/Ag were feasible, spontaneous, and exothermic under the examined conditions.
UVM-7/Ag吸附废水中钴-酞菁的研究
研究了钴-酞菁-3,4′,4′,4′-四磺酸四钠盐[Co(tsPc)-4•4Na+]在UVM-7/Ag介孔材料上的吸附效果。此外,采用x射线衍射(XRD)、扫描电子显微镜(SEM)和氮吸附-脱附测量来检测所获得的复合材料的形貌和微观结构。系统地研究了溶液吸附剂用量、接触时间、初始染料浓度和温度等参数。平衡数据与Langmuir模型拟合良好;此外,适应性表明吸附是单层的和物理性质的。动力学研究表明拉格伦拟二级吸附模型能较好地描述吸附过程。热力学常数(ΔG < 0, ΔH< 0和ΔS< 0)表明,在实验条件下,Co(tspc)-4对UVM-7/Ag的吸附反应是可行的、自发的和放热的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
2.10
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