期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 57, 期 -, 页码 396-404出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2017.08.048
关键词
Al2O3; MWNTs; p-Cresol; Box-Behanken; Adsorption
资金
- Neyshabur University of Medical Sciences [170]
- Ministry of Education and Science of the Russian Federation [16.1384.2017/PCh]
- National Research Foundation (NRF), South Africa
- University of Johannesburg (UJ) South Africa
The development and design of adsorbents with high adsorption performance is an effective method of removing p-Cresol from effluent for environmental protection. Therefore, an Al2O3 coated multiwalled carbon nanotubes (MWNTs) composite for adsorption of p-Cresol from aqueous solution was synthesized. The p-Cresol concentration was determined by estimating the absorbance of the sample solution on a DR5000 UV/vis spectrophotometer. Box-Behanken design (BBD) was involved in the optimization of p-Cresol adsorption upon Al2O3 coated MWNTs adsorbent against the process parameters time, pH and adsorbent dose. The effects of these factors were studied in the ranges 5-40 min, 4-10, and 0.2-2 g L-1, respectively. The lack of fit obtained for this model was 0.357 which confirmed that the model is highly significant and the experiments are accurate and reliable. The results showed that adsorption isotherms fit well with the pseudo-second-order kinetic model and Langmuir isotherm model and Q(max) was calculated to be 54.05 mg/g. Our results demonstrate that Al2O3 coated MWNTs has the potential to be used as an effective adsorbent for the rapid uptake of p-Cresol from aqueous solutions. (c) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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