AI Article Synopsis
- - The study explores the use of carbide-derived carbon (CDC) to effectively remove different types of surfactants—nonionic TX-100, anionic SDBS, and cationic HDPB—from water through adsorption.
- - Various characterization methods (TEM, SEM, FTIR, etc.) were employed to assess CDC, and the effects of parameters like surfactant concentration, temperature, and pH were analyzed to understand the adsorption process.
- - Results indicated that CDC shows strong adsorption capacity (442.4 mg/g for SDBS, 462.0 mg/g for HDPB, 578.4 mg/g for TX-100), with adsorption being both spontaneous and endothermic, and primarily driven
Article Abstract
The objective of the study is to investigate the potential of carbide-derived carbon (CDC) for the adsorptive removal of nonionic -octylphenoxy poly ethoxy ethanol (TX-100), anionic sodium dodecylbenzene sulfonate (SDBS) and cationic 1-hexadecylpyridinium bromide (HDPB) surfactants from water. The CDC was characterized using TEM, SEM, FTIR, BET, EDS, XPS methods and zeta potential measurements. The effects of adsorption parameters included initial surfactant concentration, contact time, temperature, and pH of the feed solution were evaluated. The adsorption capacity and mechanism were determined by modeling the isotherm, kinetic and thermodynamic data. The kinetics results demonstrated that the adsorption of the surfactant by CDC obeys the pseudo 2 order model. The thermodynamic results have shown that surfactants adsorption by CDC is an endothermic and spontaneous process. The Sips model agreed with the adsorption isotherm data of SDBS with of 0.987, while both Freundlich and Redlich-Peterson models comply well with adsorption data for TX-100 and HDPB. The hydrophobic and electrostatic interactions were found the dominant mechanisms of the adsorption of the surfactant by CDC. The adsorption capacities of CDC were found to be 442.4, 462.0 and 578.4 mg/g for SDBS, HDPB and TX-100, respectively.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1080/10934529.2021.1973822 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!