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https://hdl.handle.net/20.500.13091/1184
Title: | Nano-ZrO2/TiO2 Impregnated Orange Wood Sawdust and Peach Stone Shell Adsorbents for Cr (VI) Removal | Authors: | Parlayıcı, Şerife Sezer, Kübra Tuna Pehlivan, Erol |
Keywords: | Cr (Vi) Removal Kinetics Orange Wood Sawdust Peach Stone Shell Zro2-Tio2 Nanoparticles Adsorption Process Aqueous-Solutions Hexavalent Chromium Cr(Vi) Adsorption Reduction Waste |
Publisher: | BENTHAM SCIENCE PUBL LTD | Abstract: | Background: In this work, Cr (VI) adsorption on nano-ZrO2 circle dot TiO2 impregnated orange wood sawdust (Zr circle dot Ti/OWS) and nano-ZrO2 circle dot TiO2 impregnated peach stone shell (Zr circle dot Ti/PSS) was investigated by applying different adsorption parameters such as Cr (VI) concentrations, contact time, adsorbent dose, and pH for all adsorbents. Methods: The adsorbents were characterized by SEM and FT-IR. The equilibrium status was achieved after 120 min of contact time and optimum pH value around 2 were determined for Cr (VI) adsorption. Adsorption data in the equilibrium is well-assembled by the Langmuir model during the adsorption process. Results: Langmuir isotherm model showed a maximum adsorption value of OWS: 21.65 mg/g and Zr circle dot Ti/OWS: 27.25 mg/g. The same isotherm displayed a maximum adsorption value of PSS: 17.64 mg/g, and Zr circle dot Ti/PSS: 31.15 mg/g. Pseudo-second-order kinetic models (R-2=0.99) were found to be the best models for describing the Cr (VI) adsorption reactions. Conclusion: Thermodynamic parameters such as changes in Delta G degrees, Delta H degrees, and Delta S degrees have been estimated, and the process was found to be spontaneous. | URI: | https://doi.org/10.2174/1573411015666191114143128 https://hdl.handle.net/20.500.13091/1184 |
ISSN: | 1573-4110 1875-6727 |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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