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AuthorMarwa, El-Azazy
AuthorEl-Shafie, Ahmed S.
AuthorAl-Mulla, Reem
AuthorHassan, Siham S.
AuthorNimir, Hassan I.
Available date2024-02-29T08:39:24Z
Publication Date2023-04-26
Publication NameHeliyon
Identifierhttp://dx.doi.org/10.1016/j.heliyon.2023.e15802
CitationEl-Azazy, M., El-Shafie, A. S., Al-Mulla, R., Hassan, S. S., & Nimir, H. I. (2023). Enhanced adsorptive removal of rifampicin and tigecycline from single system using nano-ceria decorated biochar of mango seed kernel. Heliyon, 9(5).
ISSN2405-8440
URIhttps://www.sciencedirect.com/science/article/pii/S2405844023030098
URIhttp://hdl.handle.net/10576/52486
AbstractPharmaceutically active compounds (PhACs) represent an emerging class of contaminants. With a potential to negatively impact human health and the ecosystem, existence of pharmaceuticals in the aquatic systems is becoming a worrying concern. Antibiotics is a major class of PhACs and their existence in wastewater signifies a health risk on the long run. With the purpose of competently removing antibiotics from wastewater, cost-effective, and copiously available waste-derived adsorbents were structured. In this study, mango seeds kernel (MSK), both as a pristine biochar (Py–MSK) and as a nano-ceria-laden (Ce–Py–MSK) were applied for the remediation of rifampicin (RIFM) and tigecycline (TIGC). To save time and resources, adsorption experiments were managed using a multivariate-based scheme executing the fractional factorial design (FrFD). Percentage removal (%R) of both antibiotics was exploited in terms of four variables: pH, adsorbent dosage, initial drug concentration, and contact time. Preliminary experiments showed that Ce–Py–MSK has higher adsorption efficiency for both RIFM and TIGC compared to Py–MSK. The %R was 92.36% for RIFM compared to 90.13% for TIGC. With the purpose of comprehending the adsorption process, structural elucidation of both sorbents was performed using FT-IR, SEM, TEM, EDX, and XRD analyses which confirmed the decoration of the adsorbent surface with the nano-ceria. BET analysis revealed that Ce–Py–MSK has a higher surface area (33.83 m2/g) contrasted to the Py–MSK (24.72 m2/g). Isotherm parameters revealed that Freundlich model best fit Ce–Py–MSK–drug interactions. A maximum adsorption capacity (qm) of 102.25 and 49.28 mg/g was attained for RIFM and TIGC, respectively. Adsorption kinetics for both drugs conformed well with both pseudo-second order (PSO) and Elovich models. This study, therefore, has established the suitability of Ce–Py–MSK as a green, sustainable, cost-effective, selective, and efficient adsorbent for the treatment of pharmaceutical wastewater.
SponsorOpen Access funding provided by the Qatar National Library.
Languageen
PublisherElsevier
SubjectAdsorption
Biochar
Antibiotics removal
Ceria nanoparticles
Selectivity
Regeneration
TitleEnhanced adsorptive removal of rifampicin and tigecycline from single system using nano-ceria decorated biochar of mango seed kernel
TypeArticle
Issue Number5
Volume Number9
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN2405-8440
dc.accessType Open Access


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