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المؤلفEl‐azazy, Marwa
المؤلفNabil, Iman
المؤلفHassan, Siham S.
المؤلفEl‐shafie, Ahmed S.
تاريخ الإتاحة2024-03-06T08:50:05Z
تاريخ النشر2021-04-09
اسم المنشورNanomaterials
المعرّفhttp://dx.doi.org/10.3390/nano11040963
الاقتباسEl-Azazy, M., Nabil, I., Hassan, S. S., & El-Shafie, A. S. (2021). Adsorption characteristics of pristine and magnetic olive stones biochar with respect to clofazimine. Nanomaterials, 11(4), 963.
الرقم المعياري الدولي للكتاب2079-4991
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85103852928&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/52786
الملخصOlive stone biochars (OSBC), both pristine and following magnetization (MAG–OSBC), were utilized as eco‐friendly and cost‐effective sorbents for the antituberculosis, clofazimine (CLOF). Morphologies, textures, surface functionalities, and thermal stabilities of both adsorbents were explored using SEM, EDX, TEM, BET, FT‐IR, Raman, XRD and TGA analyses. SEM analysis showed meso‐ and macroporous surfaces. BET data showed that the MAG–OSBC possesses a larger surface area (33.82 m2/g) and pore volume. Batch adsorption studies were conducted following the experimental scenario of Box–Behnken (BB) design. The adsorption efficiency of both adsorbents was evaluated in terms of the % removal (%R) and the sorption capacity (qe, mg/g). Dependent variables (%R and qe) were maximized as a function of four factors: pH, sorbent dose (AD), the concentration of CLOF ([CLOF]), and contact time (CT). A %R of 98.10% and 98.61% could be obtained using OSBC and MAG–OSBC, respectively. Equilibrium studies indicated that both Langmuir and Freundlich models were perfectly fit for adsorption of CLOF. Maximum adsorption capacity (qmax) of 174.03 mg/g was obtained using MAG–OSBC. Adsorption kinetics could be best illustrated using the pseudo‐second‐order (PSO) model. The adsorption–desorption studies showed that both adsorbents could be restored with the adsorption efficiency being conserved up to 92% after the sixth cycles.
راعي المشروعThis research was funded by Qatar University, Internal student grant number QUST‐1‐ CAS‐2021‐4.
اللغةen
الناشرMultidisciplinary Digital Publishing Institute (MDPI)
الموضوعBox–Behnken design
Clofazimine
Green adsorbent
Magnetized biochar
Olive stones biochar
Wastewater
العنوانAdsorption characteristics of pristine and magnetic olive stones biochar with respect to clofazimine
النوعArticle
رقم العدد4
رقم المجلد11
dc.accessType Open Access


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