Xiang Li , Lingling Zeng , Liya Zhu , Huating Jiang , Chunrui Liu , Yingjie Dai
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引用次数: 0
Abstract
The adsorption process of tetracycline (TC) on different types of carbon black (CB) was investigated. The CB materials were characterized in detail to determine their physicochemical properties. BET analysis yielded specific surface areas of 842.99 m2/g and 1362.92 m2/g for CB-A and CB-B, respectively. The results were fitted using kinetic and isothermal models, and then assessed using AICc. It was found that, the pseudo-second-order kinetic model provided a satisfactory fit, with R2 values of 0.9840 for CB-B and 0.8759 for CB-A. The Langmuir adsorption isotherm was the best fit, with R2 values of 0.9683 for CB-B and 0.9906 for CB-A, and saturated adsorption amounts of 654.06 mg/g and 427.46 mg/g, respectively. Density Functional Theory (DFT) was used to analyze the electrostatic potential distribution and the magnitude of the adsorption energy, with a theoretical adsorption energy of −0.526 Ha and an interaction distance of 3.835 Å. Specific surface area and pore size also had an effect on the adsorption amount. The strong adsorption properties found in CB make it a very promising adsorbent, and this study provides a new idea for the study of antibiotic adsorption by CB and its mechanism.
期刊介绍：
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
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