C-4-羟基-3-甲氧基苯基杯[4]间苯二酚芳烃吸附亚甲基蓝染料的动力学测定

Q3 Chemistry
S. Handayani, Irmanto Irmanto, Nastiti Nur Indriyani
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引用次数: 0

摘要

吸附动力学是吸附的一部分,讨论了吸附剂对吸附质的吸附速率。吸附动力学有一个确定吸附速率常数的方程,即拟一阶和拟二阶。在本研究中,使用C-4-羟基-3-甲氧基苯基杯[4]间苯二酚芳烃(CHMFKR)吸附剂吸附亚甲基蓝。本研究的目的是用Langmuir和Freundlich吸附等温线模型方法确定工艺参数(浓度、pH和处理时间)对工艺吸附的影响,并用CHMFKR确定亚甲基蓝的吸附动力学。将10mL溶液pH为7的各种浓度为5、6、8、10和11ppm的亚甲蓝溶液添加到多达0.001克的CHMFKR吸附剂中,并在600rpm下搅拌40分钟。测量溶液,并使用UV-Vis分光光度计测量其吸光度。结果表明,吸附动力学为准二级,吸附速率为0.7217±0.4g/mg.s。吸附等温线符合Langmuir方程,最大吸附量为114.94±2.04mg/g。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Determination of The Adsorption Kinetics for Adsorption Methylene Blue Dye with C-4-Hydroxy-3-Methoxyphenylcalix[4]resorcinarene
Adsorption kinetics is part of adsorption and discusses the adsorption rate of an adsorbent on the adsorbate. Adsorption kinetics has an equation to determine the rate constant of adsorption, namely the pseudo-first order and pseudo-second order. In this study, methylene blue was adsorbed using a C-4-hydroxy-3-methoxyphenylcalix[4]resorcinarene (CHMFKR) adsorbent. The aim of this study to determine the effect of process parameters (concentration, pH, and processing time) on the process adsorption, with the Langmuir and Freundlich adsorption isotherm model approach, and to determine the adsorption kinetics of methylene blue with CHMFKR. Ten mL of methylene blue solution with various concentrations of 5, 6, 8, 10, and 11 ppm with a solution pH of 7 was added to as much as 0.001 gram of CHMFKR adsorbent and stirred at 600 rpm for 40 minutes. The solution was measured, and its absorbance was measured using the UV-Vis Spectrophotometer. The results show that the adsorption kinetics follow pseudo second order with an adsorption rate of 0.7217 ± 0.4 g/mg.s. The adsorption isotherm follows the Langmuir equation, and the maximum adsorption amount is 114.94 ± 2.04 mg/g.
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来源期刊
Molekul
Molekul Chemistry-Chemistry (all)
CiteScore
1.30
自引率
0.00%
发文量
31
审稿时长
4 weeks
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