以大戟叶提取物为原料合成磁性碳去除废水中铅离子的等温研究

IF 0.5 4区工程技术 Q4 CHEMISTRY, APPLIED

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI:10.56042/ijct.v30i5.5214

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引用次数: 0

摘要

以大戟叶(EHL)提取物为原料合成磁性碳(MEHLC)，研究其对铅(II)离子的吸附性能。在接触时间、pH、吸附剂剂量和温度等条件下，对制备的磁性碳(MEHLC)与原料(EHL)进行了间歇吸附比较。通过FT-IR、SEM和EDX对吸附剂进行了表征。在300 K时得到最大去除率，MEHLC和EHL的Langmuir等温线适用的qm值分别为385.86和21.96 mg g-1。评估了各种热力学参数，包括标准吉布斯自由能(∆Go)、标准焓(∆Ho)和标准熵(∆So)。以铅(II)电镀废水为研究对象，采用批处理法进行了5个循环的MEHLC和EHL测试;MEHLC的效果优于EHL。

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Isotherm studies on removal of lead(II) ions from wastewater by magnetic carbon synthesised from Euphorbia hirta leaf extract

In this article a magnetic carbon (MEHLC) has been synthesised from Euphorbia hirta leaf (EHL) extract to investigate the adsorption capacity of lead(II) ions from aqueous solutions and industrial wastewater. The prepared magnetic carbon (MEHLC) is compared with raw material (EHL) under the batch adsorption process such as contact time, pH, adsorbent dose and temperature. The adsorbents are characterized by FT-IR, SEM and EDX studies. The maximum removal is obtained at 300 K and the Langmuir isotherm of MEHLC and EHL is found to be with applicable qm value of 385.86 and 21.96 mg g-1, respectively. Various thermodynamic parameters, including the standard Gibbs free energy (∆Go), standard enthalpy (∆Ho) and standard entropy (∆So), are evaluated. The MEHLC and EHL are tested with lead(II) plating wastewater through a batch mode process over five cycles; MEHLC showed better results than EHL.

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来源期刊

Indian Journal of Chemical Technology 工程技术-工程：化工

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Indian Journal of Chemical Technology has established itself as the leading journal in the exciting field of chemical engineering and technology. It is intended for rapid communication of knowledge and experience to engineers and scientists working in the area of research development or practical application of chemical technology. This bimonthly journal includes novel and original research findings as well as reviews in the areas related to – Chemical Engineering, Catalysis, Leather Processing, Polymerization, Membrane Separation, Pharmaceuticals and Drugs, Agrochemicals, Reaction Engineering, Biochemical Engineering, Petroleum Technology, Corrosion & Metallurgy and Applied Chemistry.