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Palladium-Supported Zirconia-Based Catalytic Degradation of Rhodamine-B Dye from Wastewaterстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 декабря 2021 г.
- Авторы: Jabeen Salma, Khan Muhammad Sufaid, Khattak Rozina, Zekker Ivar, Burlakovs Juris, Rubin Sergio S.dC, Ghangrekar Makarand Madhao, Kallistova Anna, Pimenov Nikolai, Zahoor Muhammad, Khan Gul Shahzada
- Журнал: Water
- Том: 13
- Номер: 11
- Год издания: 2021
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Первая страница: 1
- Последняя страница: 13
- Номер статьи: 1522
- DOI: 10.3390/w13111522
- Аннотация: The catalytic activity of Pd/ZrO2 was studied in terms of the degradation of rhodamine-B dye in the presence of hydrogen peroxide. Pd/ZrO2 was prepared by impregnation method, calcined at 750 °C and characterized by XRD, SEM and EDX. The catalyst showed good catalytic activity for dye degradation at 333 K, using 0.05 g of the catalyst during 5 h. The reaction kinetics followed the pseudo-first order kinetics. The Freundlich, Langmuir and Temkin isotherms were applied to the data and the best fit was obtained with Freundlich isotherm. Thermodynamic parameters, like ΔH, ΔG and ΔS were also calculated. The negative values of ΔH (−291.406 KJ/mol) and Gibbs free energy (ΔG) showed the exothermic and spontaneous nature of the process. The positive ΔS (0.04832 KJ/mol K) value showed suitable affinity of catalyst for dye degradation. The catalyst was very stable, active and was easily separated from the reaction mixture by filtration. It can be concluded from the results that the prepared catalyst could be effectively used in dyes degradation/removal from water subjected to further validation and use for various dyes.
- Добавил в систему: Костина Наталья Викторовна