دورية أكاديمية
TiO2-functionalized biochar from pistachio nutshells: adsorptive removal and photocatalytic decolorization of methyl orange
| العنوان: | TiO2-functionalized biochar from pistachio nutshells: adsorptive removal and photocatalytic decolorization of methyl orange |
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| المؤلفون: | Ahmed S. El-Shafie, Maha Abouseada, Marwa El-Azazy |
| المصدر: | Applied Water Science, Vol 13, Iss 12, Pp 1-21 (2023) |
| بيانات النشر: | SpringerOpen, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Water supply for domestic and industrial purposes |
| مصطلحات موضوعية: | TiO2-functionalized biochar, Pistachio nutshells, Methyl orange removal, Photocatalysis, Box-Behnken (BB) design, Water supply for domestic and industrial purposes, TD201-500 |
| الوصف: | Abstract Pistachio nutshells-derived biochar (PNS-BC) was utilized as a cost-effective adsorbent for competently removing a model dye, methyl orange (MO) from wastewater. Three concentrations of TiO2; 1%, 2%, and 3% were used to decorate the biochar. Analysis of morphology, stability, and structure of the three adsorbents (PNS, PNS-BC, and the TiO2 functionalized biochar; TiO2@PNS-BC) was extensively explored using various characterization techniques. The synergistic photocatalytic-adsorptive efficiency of the three adsorbents was compared. In this regard, a Box-Behnken (BB) design-based multivariate scheme was inaugurated with the target of maximizing MO removal (%R) while using the minimum possible of chemicals and resources. The impact of five variables; %TiO2, dose of TiO2-PNS, reaction time, dye concentration, and pH on the magnitude of %R was investigated. Results show that 97.69% removal of MO could be recognized over 120 min using adsorption compared to 99.47% removal over 30 min using 3% TiO2@PNS-BC as a photocatalyst. A 3% TiO2@PNS-BC was the best catalyst (compared to 1% and 2%) with a decolorization rate constant of 0.12741 min−1, ~ 1.5 × faster compared to the decolorization of MO using adsorption alone. Adsorption of MO conformed well to Langmuir isotherm. A maximum adsorption capacity (q max ) of 142.38 mg/g was achieved. Adsorption kinetics fitted well with the pseudo-second order (PSO) model. Results obtained indicated that biochar of PNS is a promising, cost-effective, and economical adsorbent. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2190-5487 2190-5495 |
| Relation: | https://doaj.org/toc/2190-5487; https://doaj.org/toc/2190-5495 |
| DOI: | 10.1007/s13201-023-02035-9 |
| URL الوصول: | https://doaj.org/article/becaeb1d9c6946058e66e0007fe7bf79 |
| رقم الأكسشن: | edsdoj.becaeb1d9c6946058e66e0007fe7bf79 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 21905487 21905495 |
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| DOI: | 10.1007/s13201-023-02035-9 |