山毛榉木屑和麦秸对水溶液中铅离子的生物吸附

IF 1 4区工程技术 Q4 CHEMISTRY, APPLIED

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI:10.2298/ciceq191113021b

D. Božić, M. Gorgievski, V. Stanković, M. Cakic, S. Dimitrijević, V. Conić

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引用次数: 5

摘要

本文介绍了以山毛榉木屑和麦秸为吸附剂，对合成Pb(NO3)2溶液中Pb2+的吸附效果。对吸附剂进行了比表面积、pHpzc、SEM-EDS和FTIR等理化表征。对吸附动力学和等温线以及过程中pH溶液的变化进行了监测和分析。结果表明，两种吸附剂的准二级动力学模型都能很好地解释吸附过程。Temkin等温线很好地描述了Pb2+在木屑和稻草上的吸附，回归系数R2的高值证实了这一点。山毛榉木屑和麦秸对铅离子的最大吸附量分别为9.9和9.7 mg g-1。结果表明，山毛榉木屑和麦秸是较好的吸附铅离子的吸附剂。

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Biosorption of lead ions from aqueous solutions by beech sawdust and wheat straw

This paper presents the results of the Pb2+ adsorption from synthetic Pb(NO3)2 solutions, using the beech sawdust and wheat straw as adsorbents. Physicochemical characterization of the adsorbents included the specific surface area, pHpzc, SEM-EDS and FTIR analysis. Adsorption kinetics and isotherms, as well as changes in the pH solution during the process, were monitored and analyzed. The results showed that the adsorption is well explained by the pseudosecond order kinetic model for both adsorbents. Adsorption of the Pb2+ on sawdust and straw is well described by the Temkin isotherm, which is confirmed by the high values of the regression coefficient R2. The maximum adsorption capacity of lead ions on the beech sawdust and wheat straw was 9.9 and 9.7 mg g-1, respectively. The obtained results have indicated that the beech sawdust and wheat straw are suitable adsorbents for the adsorption of lead ions from dilute aqueous solutions.

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来源期刊

Chemical Industry & Chemical Engineering Quarterly CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

3.3 months

期刊介绍： The Journal invites contributions to the following two main areas: • Applied Chemistry dealing with the application of basic chemical sciences to industry • Chemical Engineering dealing with the chemical and biochemical conversion of raw materials into different products as well as the design and operation of plants and equipment. The Journal welcomes contributions focused on: Chemical and Biochemical Engineering [...] Process Systems Engineering[...] Environmental Chemical and Process Engineering[...] Materials Synthesis and Processing[...] Food and Bioproducts Processing[...] Process Technology[...]