Golestan University of Medical Sciences Repository

Ultrasound wave assisted removal of Ceftriaxone sodium in aqueous media with novel nano composite g-C3N4/MWCNT/Bi2WO6 based on CCD-RSM model

Shi, X. and Karachi, A. and Hosseini, M. and Yazd, M.S. and Kamyab, H. and Ebrahimi, M. and Parsaee, Z. (2019) Ultrasound wave assisted removal of Ceftriaxone sodium in aqueous media with novel nano composite g-C3N4/MWCNT/Bi2WO6 based on CCD-RSM model. Ultrasonics Sonochemistry.

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Abstract

The aim of this study was ultrasound assisted removal of Ceftriaxone sodium (CS) based on CCD model. Using sonochemical synthesized Bi2WO6 implanted on graphitic carbon nitride/Multiwall carbon nanotube (g-C3N4/MWCNT/Bi2WO6). For this purpose g-C3N4/MWCNT/Bi2WO6 was synthesized and characterized using diverse approaches including XRD, FE-SEM, XPS, EDS, HRTEM, FT-IR. Then, the contribution of conventional variables including pH, CS concentration, adsorbent dosage and ultrasound contact time were studied by central composite design (CCD) under response surface methodology (RSM). ANOVA was employed to the variable factors, and the most desirable operational conditions mass provided. Drug adsorption yield of 98.85 obtained under these defined conditions. Through conducting five experiments, the proper prediction of the optimum point were examined. The respective results showed that RSD was lower than 5 while the t-test confirmed the high quality of fitting. Langmuir isotherm equation fits the experimental data best and the removal followed pseudo-second order kinetics. The estimation of the experimentally obtained maximum adsorption capacities was 19.57 mg.g� of g-C3N4/MWCNT/Bi2WO6 for CS. Boundary layer diffusion explained the mechanism of removal via intraparticle diffusion. © 2019 Elsevier B.V.

Item Type: Article
Additional Information: cited By 0; Article in Press
Uncontrolled Keywords: Boundary layers; Carbon nanotubes; Carbon nitride; Charge coupled devices; Isotherms; Mass transfer; Nanocomposites; Sodium; Ultrasonics; Yarn, Bi2WO6; Boundary layer diffusions; Ceftriaxone sodium; Central composite designs; g-C3N4; Graphitic carbon nitrides; Pseudo second order kinetics; Response surface methodology, Bismuth compounds
Subjects: QS آناتومی انسان
QTفیزیولوژی
QU بیوشیمی
مقالات نمایه شده محققین دانشگاه در سایت ,Web of Science ,Scopus
Divisions: معاونت تحقیقات و فناوری
Depositing User: GOUMS
Date Deposited: 21 Sep 2019 08:27
Last Modified: 21 Sep 2019 08:27
URI: http://eprints.goums.ac.ir/id/eprint/9977

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