Персона: Маслов, Михаил Михайлович
Загружается...
Email Address
Birth Date
Научные группы
Научная группа
Организационные подразделения
Организационная единица
Институт нанотехнологий в электронике, спинтронике и фотонике
Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе.
Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.
Статус
Фамилия
Маслов
Имя
Михаил Михайлович
Имя
3 results
Результаты поиска
Теперь показываю 1 - 3 из 3
- ПубликацияТолько метаданныеTheoretically supported experimental analyses on Safranin O biosorption from textile wastewater via dead biomass of Spirogyra porticalis(2024) Aksu, A.; Kütük, N.; Çaylak, O.; Maslov, M. М.; Маслов, Михаил МихайловичAbstract High-performance chemical systems designed to eliminate pollution caused by dyestuffs are still among the focuses of interest of chemists. Non-toxic biological materials especially have begun to be widely used in this field. Fourier transform infrared spectrometry, SEM (scanning electron microscopy), EDS (energy-dispersive X-ray analysis), and TGA (thermogravimetric analysis) were performed. Adsorption was performed in batch-adsorption experiments. Optimization processes involved pH, amounts of the sorbent and Safranin O, adsorption kinetics, desorption, and reusability. To highlight the mechanism of the interaction between Safranin O and S. porticalis and to predict the power and nature interactions, density functional theory computations were performed. Optimization processes included pH, amounts of sorbent and Safranin O, adsorption kinetics, desorption, and reusability. Experimental results were re-evaluated using Langmuir and Freundlich isotherm models and the biosorption process followed Freundlich isotherm kinetics. The biosorption mechanism was understood by pseudo-first-order (PFO), intraparticle diffusion (IPD), and Elovich models. Adsorption was determined to follow PFO kinetics: physical, endothermic, and spontaneous. The highest recovery was obtained in NaOH. Density functional theory (DFT) finding calculations were also performed to prove the high adsorption capacity for Safranin O of the material used.
- ПубликацияОткрытый доступRemoval of lead ions (Pb2+) from aqueous solution using chitosan/starch composite material: Experimental and density functional theory findings(2024) Celik, M. S.; Caylak, O.; Kutuk, N.; Maslov, M. M.; Маслов, Михаил МихайловичAbstract Treatment of wastewater has become vital to prevent environmental pollution in recent years. Adsorption is an easily applicable, low-cost and efficient method and is the subject of this study. In this study, an adsorbent was synthesized to be used in heavy metal removal using chitosan and starch. The composite was characterized by Fourier transform infrared (FTIR) spectrophotometry, X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis. It was determined that the composite had an amorphous and compact structure. Adsorption experiments were carried out under the optimized parameters such as solution pH, concentration, adsorbent amount, equilibrium time, and temperature. It shows that during adsorption, with the increase in pH, the adsorption efficiency and adsorption capacity first increase and then a fluctuation occurs. The highest adsorption efficiency and Q value were reached at pH 3.46 as 78% and 0.038 mol/kg, respectively. Moreover, the adsorption capacity (Q) reached its highest value with a value of 0.067 mol/kg in the presence of 30 mg adsorbent. Equilibrium experiments were validated by the Langmuir, Freundlich, Temkin and Dubininў??Radushkevich isotherm models. To investigate the adsorption mechanism, pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetic models were used. It was determined that the adsorption process followed the D-R isotherm (R 2 = 0.99) and PSO (R 2 = 0.99). Therefore, the existence of chemical adsorption can be mentioned. Thermodynamic parameters enthalpy (ў??H), Gibbs free energy (ў??G) and entropy change (ў??S) were investigated. The adsorbate-adsorbent interactions were studied by density functional theory (DFT).
- ПубликацияОткрытый доступBiosorption of lead ions (Pb2+) from water samples using dried Lemna minor biomass: experimental and density functional theory studies(2023) Kaya,S.; Çetinkaya, S; Jalbani, N. S.; Yenidünya, A. F.; Kütük, N.; Kasaka, E.; Maslov, М. М.; Маслов, Михаил МихайловичLemnaminor biomass, a novel source of biosorbent, was found to exhibit high adsorption potential over a wide range of concentrations of Pb2+. The biosorbent was characterized by Fourier transform infrared (FTIR) spectrophotometry, scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, X-ray powder diffraction (XRD), and thermogravimetric analysis (TGA). Biosorption experiments were carried out under the optimized parameters such as solution pH, biosorbent amount, equilibrium time, and temperature. During the sorption, it has been observed that the above 85% removal of Pb2+ ions was achieved at acidic pH (4.5–5.1). Moreover, the maximum sorption was achieved using the 150 mg L−1 biosorbent. Equilibrium experiments were validated by the Langmuir, Freundlich, and Dubinin–Radushkevich isotherm models. From the results, it has been noticed that the experimental data was best fitted to the Langmuir model (R2, 0.986 and 969.18 mmol g−1). Standard enthalpy (∆H°), free energy (∆G°), and entropy (∆S°) changes were calculated. Results showed that biosorption of Pb2+ was spontaneous and endothermic. The biosorption mechanism was analyzed through pseudo-first-order and pseudo-second-order kinetic models. The results demonstrated that the biosorption of Pb2+ followed the pseudo-second-order kinetic model. Adsorbate-adsorbent interactions were scrutinized by density functional theory (DFT).