The applications of photocatalytic nanomaterial technology received intense scientific focus with the advent of nanotechnology. Applications based on TiO2 nanoparticles have shown promise of photocatalytic efficiency among many semiconductor metal oxides. Titanium dioxide is utilized in many practical applications such as water and air purification, self-cleaning of surfaces, and energy production. The major drawback with […]
Here, SnO2, BiVO4, and CuO nanoparticles (NPs) were hydrothermally synthesized and mixed in an agate mortar mechanically. The coupled ternary SnO2-BiVO4-CuO (SBC) catalyst and the individual NPs were then briefly characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), and diffuse reflectance spectroscopy (DRS). Average crystallite size of 25 nm was obtained from the […]
In this study, Ag and Pd nanoparticles (NPs) were immobilized on natural zeolite and magnetized zeolite (Fe3O4/natural zeolite) by using an aqueous Chrysanthemum morifolium flower extract, as a green and low-cost method. Different techniques such as FTIR, XRD, FESEM, EDS, and VSM were used for the characterization of prepared nanocomposites. The FESEM and TEM images […]
Novel deep eutectic solvent (DES) using Choline Chloride (ChCl) as the hydrogen bond acceptor and triflouroacetic acid (TFA) as hydrogen bond donor (1.0:1.5 molar ratio) was prepared at room temperature and characterized by FT- IR and 1H NMR spectroscopy. Also, this novel acidic RTDES (room temperature deep eutectic solvent) was successfully used both as a […]
The Cu(II) complex of 2,6-pyridine dicarboxylic acid (PydcH2, dipiconilic acid) was successfully prepared and readily trapped in the nanocavity of zeolite-X (NaX) through a flexible synthetic method. The characterization of nanocomposite ([Cu(pydcH2)(pydc)]-NaX) was performed by FT-IR, XRD, BET isotherm, SEM, TEM, and elemental analysis, that approved the encapsulating of coordination compound in the channels of […]
Desilication of natural zeolite by alkali treatment to produce solketal was successfully prepared. Natural zeolite from Tasikmalaya, West Java, Indonesia, has been used as a catalyst source. The natural zeolite source was mordenite type structure. The experimental condition was varied to study their effect on the catalyst efficiency. Several characterization methods, such as Thermogravimetric Analysis […]
The negative effects of silver, which is one of the heavy metals, on the environment are known. Hence, to remove this dangerous heavy metal from the environment, poly(methacrylic acid), whose adsorption capability has been tested in previous studies, was used. But unfortunately, it performed poorly for silver ions. Therefore, this polymer was modified as poly(sodium […]
In this research, we report a novel and green magnetic nanocatalyst; Fe3O4@SiO2@Vitamin C@Fe2O3 for clean synthesis of 3-amino-1-aryl-1H-benzo[f]chromene-2-carbonitriles with high-yield in water as solvent at room temperature. The nanocatalyst is stable under the synthetic conditions and it can be reused several times without considerable reduction in its catalytic activity. The catalyst structure was characterized by […]