Temat: Congo - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Adsorption of congo red from aqueous solutions by porous soybean curd xerogels
Autorzy:: Zhang, Z.
Li, Y.
Du, Q.
Li, Q.
Powiązania:: https://bibliotekanauki.pl/articles/778311.pdf
Data publikacji:: 2018
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: Soybean curd
Congo red
Adsorption
Kinetics
Thermodynamics
Opis:: Soybean curd is a very popular food containing high-quality protein, polyunsaturated fats, vitamins, minerals and other nutrients. This study aims to prepare porous soybean curd xerogels via a vacuum freeze drying method and uses them as adsorbents to remove congo red from aqueous solutions. The morphology and functional groups of the soybean curd xerogels were characterized using scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. The adsorption properties of congo red onto the soybean curd xerogels were carried out through investigating the influencing experimental parameters such as the drying method, solution pH, adsorbent dose, contact time and temperature. The results showed that the adsorption isotherm data were fitted well to the Freundlich isotherm. Adsorption kinetics of congo red onto the soybean curd followed the pseudo-second-order kinetic model. The thermodynamic parameters, such as ΔG°, ΔH° and ΔS°, were also determined.
Źródło:: Polish Journal of Chemical Technology; 2018, 20, 3; 95-102
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Synthesis of an optical catalyst for cracking contaminating dyes in the wastewater of factories using indium oxide in nanometer and usage in agriculture
Autorzy:: Ahmed, Ishaq F. E.
El-Shenawy, Ahmed I.
Refat, Moamen S.
Powiązania:: https://bibliotekanauki.pl/articles/778735.pdf
Data publikacji:: 2019
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: Photocatalyst
In2O3
precursors
Crystal Violet
Congo Red
NPs
Opis:: Herein, the photocatalytic degradation of the Congo Red (CR) and Crystal Violet (CV) dyes in an aqueous solution were discussed in the presence of an indium(III) oxide (In₂O₃) as optical catalyst efficiency. The caproate bidentate indium(III) precursor complex has been synthesized and well interpreted by elemental analysis, molar conductivity, Fourier transform infrared (FT-IR), UV-Vis, and thermogravimetric (TGA) with its differential thermogravimetric (DTG) studies. The microanalytical and spectroscopic assignments suggested that the associated of mononuclear complex with 1:3 molar ratio (M³⁺:ligand). Octahedral structure is speculated for this parent complex of the caproate anion, CH₃(CH₂)₄COO⁻ ligand. The In₂O₃ NPs with nanoscale range within 10–20 nm was synthesized by a simple, low cost and eco-friendly method using indium(III) caproate complex. Indium oxide nanoparticles were formed after calcination of precursor in static air at 600°C for 3 hrs. The structural, grain size, morphological and decolorization efficiency of the synthesized NPs were characterized using the FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and transmission electron microscopy (TEM) analyses. It was worthy mentioned that the prepared In₂O₃ NPs showed a good photodegradation properties against CR and CV organic dyes during 90 min.
Źródło:: Polish Journal of Chemical Technology; 2019, 21, 4; 98-105
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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