Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс:
http://elar.urfu.ru/handle/10995/103092
Название: | Kinetic and isotherm study of as(Iii) removal from aqueous solution by pet track-etched membranes loaded with copper microtubes |
Авторы: | Russakova, A. V. Altynbaeva, L. Sh. Barsbay, M. Zheltov, D. A. Zdorovets, M. V. Mashentseva, A. A. |
Дата публикации: | 2021 |
Издатель: | MDPI AG |
Библиографическое описание: | Kinetic and isotherm study of as(Iii) removal from aqueous solution by pet track-etched membranes loaded with copper microtubes / A. V. Russakova, L. Sh. Altynbaeva, M. Barsbay, et al. — DOI 10.3390/membranes11020116 // Membranes. — 2021. — Vol. 11. — Iss. 2. — P. 1-19. — 116. |
Аннотация: | This paper reports on the synthesis and structure elucidation of track-etched membranes (TeMs) with electrolessly deposited copper microtubes (prepared in etched-only and oxidized polyethylene terephthalate (PET) TeMs), as well as on the comparative testing of arsenic (III) ion removal capacities through bath adsorption experiments. The structure and composition of composites were investigated by X-ray diffraction technique and scanning electron and atomic force microscopies. It was determined that adsorption followed pseudo-second-order kinetics, and the adsorption rate constants were calculated. A comparative study of the applicability of the adsorption models of Langmuir, Freundlich, and Dubinin–Radushkevich was carried out in order to describe the experimental isotherms of the prepared composite TeMs. The constants and parameters of all of the above equations were determined. By comparing the regression coefficients R2, it was shown that the Freundlich model describes the experimental data on the adsorption of arsenic through the studied samples better than others. Free energy of As(III) adsorption on the samples was determined using the Dubinin–Radushkevich isotherm model and was found to be 17.2 and 31.6 kJ/mol for Cu/PET and Cu/Ox_PET samples, respectively. The high EDr value observed for the Cu/Ox_PET composite indicates that the interaction between the adsorbate and the composite is based on chemisorption. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. |
Ключевые слова: | ADSORPTION KINETICS ARSENIC (III) IONS COMPOSITE TRACK-ETCHED MEMBRANES COPPER MICROTUBES ELECTROLESS PLATING TEMPLATE SYNTHESIS ATOMIC FORCE MICROSCOPY COMPOSITE STRUCTURES COPPER FREE ENERGY ISOTHERMS PLASTIC BOTTLES POLYETHYLENES RATE CONSTANTS WELL TESTING ADSORPTION EXPERIMENT ADSORPTION OF ARSENICS POLYETHYLENE TEREPHTHALATES (PET) PSEUDO SECOND ORDER KINETICS REGRESSION COEFFICIENT STRUCTURE ELUCIDATION TRACK-ETCHED MEMBRANE X-RAY DIFFRACTION TECHNIQUES ADSORPTION |
URI: | http://elar.urfu.ru/handle/10995/103092 |
Условия доступа: | info:eu-repo/semantics/openAccess |
Идентификатор SCOPUS: | 85100743433 |
Идентификатор WOS: | 000622776700001 |
Идентификатор PURE: | 20890813 4a417cde-fed3-4f7b-8e2f-53f1a0c5f0ec |
ISSN: | 20770375 |
DOI: | 10.3390/membranes11020116 |
Сведения о поддержке: | The research project titled “Development of functionalized composite track-etched membranes for environmental applications” (grant No. AP08855527) was funded by the Ministry of Education and Science of the Republic of Kazakhstan. |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
---|---|---|---|---|
2-s2.0-85100743433.pdf | 4,92 MB | Adobe PDF | Просмотреть/Открыть |
Все ресурсы в архиве электронных ресурсов защищены авторским правом, все права сохранены.