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Different complexation Behavior of Fe(III), Co(II) and Ni(II) with pyridine-2,6-dicarboxylic acid and 4,4′-Bipyridine adduct: Syntheses, crystal structures and solution studies
Springer Science and Business Media LLC - Tập 8 - Trang 247-264 - 2012
Three complexes (bpyH)[Fe(pydc)2].4H2O (1), [Co2(pydc)2(μ-bpy)(H2O)4].4H2O (2) and [Ni(pydc)(bpy)(μ-bpy)]4.8H2O (3) were prepared from the reaction between pyridine-2,6-dicarboxylic acid, pydcH2, and 4,4′-bipyridine, bpy, with FeCl2.4H2O, CoCl2.6H2O and NiSO4.6H2O, respectively. The complex (1) crystallizes in the space group
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Mesoporous silica-coated α-Fe2O3/C nanoparticles as an efficient adsorbent for cationic dye removal
Springer Science and Business Media LLC - Tập 19 - Trang 873-883 - 2021
In this work, α-Fe2O3/C nanoparticles were synthesized through single step reaction and coated with mesoporous SiO2. Surface modification of α-Fe2O3/C using mesoporous SiO2 enhance BET surface area from 18.60 to 312.62 m2 g−1 which significantly affect the adsorption characteristics. Prepared SiO2-coated α-Fe2O3/C nanosorbent was characterized by various analytical techniques and used for the MB d...... hiện toàn bộ
Multi-criteria decision making for simultaneous optimization of resolution and analysis time of aromatic diamines in high-submicellar liquid chromatography
Springer Science and Business Media LLC - Tập 11 - Trang 123-130 - 2013
Multi-criteria decision making was used to simultaneous optimization of resolution and analysis time of five aromatic diamines in high-submicellar liquid chromatography. The factors studied were the concentration of sodium dodecyl sulfate [SDS], and volume percentage of methanol. The experiments were performed according to a face-centered cube central composite design to map the chromatographic re...... hiện toàn bộ
Molecular dynamics simulation of the sliding of distamycin anticancer drug along DNA: interactions and sequence selectivity
Springer Science and Business Media LLC - Tập 14 - Trang 531-540 - 2016
Molecular dynamics simulations and umbrella sampling have been used to investigate the sliding of distamycin anticancer drug along the DNA minor groove. The potential energy surface calculated for the sliding of drug shows three minima. The global minimum corresponds to the binding of drug to the AT-rich region, which is the origin of sequence selectivity of distamycin. This selectivity originates...... hiện toàn bộ
Ag3PO4/AgSbO3 composite as novel photocatalyst with significantly enhanced activity through a Z-scheme degradation mechanism
Springer Science and Business Media LLC - Tập 19 - Trang 821-838 - 2021
In this work, a new composite photocatalyst, combined with Ag3PO4 and AgSbO3 (AZA Catalyst), was elaborately designed, successfully synthesized, and characterized by many techniques, such as XRD, UV-DRS, SEM–EDS, XPS, and TEM. Then, the AZA Catalyst was applied for the photocatalytic degradation of Methylene Blue (MB) and tetracycline. The results showed that AZA Catalyst could effectively degrade...... hiện toàn bộ
Hydrogen evolution reaction on VS2-NiS2 hybrid nanostructured electrocatalyst in acidic media: a binder-free electrode
Springer Science and Business Media LLC - Tập 19 - Trang 4299-4307 - 2022
The successful growth of an efficient binder-free VS2-NiS2 hybrid electrocatalyst on graphite rods is reported in the research via a facile one-pot hydrothermal method. According to the field emission scanning electron microscope images, the size of sheets and shape of structures are altered by increasing the concentration of NiS2, influencing the active sites and electrochemical results. The opti...... hiện toàn bộ
Potential application of termite mound for adsorption and removal of Pb(II) from aqueous solutions
Springer Science and Business Media LLC - Tập 9 - Trang 373-382 - 2012
The morphological and mineralogical composition of a termite mound from Ilorin, Nigeria was investigated with a view to understand its sorption properties. The termite hill soil was subjected to some spectroscopic analyses such as X-ray fluorescence (XRF) and Scanning Electron Microscopy. The XRF results revealed that the adsorbent contains a large fraction of Silicon, Iron and Aluminium minerals....... hiện toàn bộ
Copper and chromium removal from synthetic textile wastewater using clay minerals and zeolite through the effect of pH
Springer Science and Business Media LLC - Tập 18 - Trang 3377-3386 - 2021
The textile industries release a substantial amount of effluents into water resources every year. The vast majority of these effluents are composed of heavy metals that bind the textile fibres with dyes. This work proposes to use an adsorption system composed of clay-minerals (kaolinite and montmorillonite) and molecular sieve (zeolite) for separating the Cu2+ and Cr6+ ions, considering the pH cha...... hiện toàn bộ
Studies on photocatalytic performance and photodegradation kinetics of zinc oxide nanoparticles prepared by microwave-assisted sol–gel technique using ethylene glycol
Springer Science and Business Media LLC - Tập 13 - Trang 1593-1602 - 2016
ZnO nanoparticles with an average particle size of 27 nm were fabricated using a microwave-assisted sol–gel method in the presence of ethylene glycol. The nanoparticles were characterized by X-ray diffraction, Monshi’s equation, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. The band gap energy of the nanoparticles w...... hiện toàn bộ
The kinetics and mechanism of oxidation of hexacyanoferrate(II) by periodate ion in highly alkaline aqueous medium
Springer Science and Business Media LLC - Tập 5 Số 1 - Trang 29-36 - 2008
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