Electrospinning was used to form catalyst-embedded CNFs. A precursor solution of AgNO3/ZnN2O6/N–CNF was prepared by mixing PAN (Mw = 150 000 g mol−1, Sigma-Aldrich), AgNO3 (Mw = 169.87 g mol−1, Sigma-Aldrich), and Zn(NO3)2·6H2O (Mw = 297.49 g mol−1, Sigma-Aldrich). Next, 85 mg of AgNO3 and 149 mg of Zn(NO3)2·6H2O, as metal precursors, were dissolved in dimethylformamide (DMF, C3H7NO, Sigma-Aldrich). Samples were split into 4 groups: (1) pure PAN without metal (bare CNF), (2) PAN with Ag (Ag–CNF), (3) PAN with Zn (Zn–CNF), and (4) PAN with AgZn (AgZn–CNF). The solution was stirred for 12 h at room temperature. After stirring, the solution was loaded in a syringe for electrospinning. The solution-loaded syringe was pressed by a syringe pump (KDS 100, KD scientific) at a constant rate of 0.4 ml h−1 and an applied voltage of 15 kV. The distance between the needle tip of the syringe and the collector was 15 cm. The as-spun metal nitrate/PAN nanofibers were first stabilized in an air atmosphere at 280 °C for 2 h at a heating rate of 5 °C min−1. After evacuation by a rotary pump and turbo molecular pump, the samples were carbonized at 800 °C for 3 h in a N2 flow of 200 mTorr at a heating rate of 5 °C min−1.
Zn no3 2 6h2o
Manufactured by Merck Group
Sourced in United States, Germany, Italy
Zn(NO3)2·6H2O is a chemical compound that consists of zinc nitrate and six water molecules. It is a crystalline solid that is commonly used as a reagent in various laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
Sodium hydroxide (naoh), by Merck Group (16 mentions)
Ni no3 2 6h2o, by Merck Group (15 mentions)
2 methylimidazole, by Merck Group (15 mentions)
Cu no3 2 3h2o, by Merck Group (14 mentions)
Co no3 2 6h2o, by Merck Group (11 mentions)
Agno3, by Merck Group (9 mentions)
Al no3 3 9h2o, by Merck Group (8 mentions)
Hydrochloric acid (hcl), by Merck Group (6 mentions)
Ethanol, by Merck Group (6 mentions)
Na2co3, by Merck Group (6 mentions)
Cu no3 2 2.5h2o, by Merck Group (6 mentions)
N n dimethylformamide (dmf), by Merck Group (6 mentions)
Cr no3 3 9h2o, by Merck Group (5 mentions)
Pb no3 2, by Merck Group (5 mentions)
Cd no3 2 4h2o, by Merck Group (5 mentions)
Mg no3 2 6h2o, by Merck Group (5 mentions)
Methanol, by Merck Group (5 mentions)
Fe no3 3 9h2o, by Merck Group (4 mentions)
Zn ch3coo 2 2h2o, by Merck Group (4 mentions)
Nano3, by Merck Group (4 mentions)
152 protocols using zn no3 2 6h2o
1
Electrospinning of Metal-Embedded Carbon Nanofibers
2
Synthesis of ZnIPA and ZnTPA MOFs
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Synthesis of ZnIPA MOFs: 88 mg of IPA (99%, Sigma-Aldrich), 82 mg of Hmim (99%, Sigma-Aldrich), 150 mg of Zn(NO3)2⋅6H2O (99%, Alfa Aesar), and 8 ml of water are mixed in a G30 vial (volume of 25 ml). The mixture is sonicated to disperse all the components, and the vial is placed inside the microwave reactor (Monowave 400, Anton Paar) at 180°C for 3 h. After the mixture cools to room temperature, ZnIPA powder is washed with acetone in order to substitute the residual water in the pores. Finally, ZnIPA powder is activated in a vacuum oven by keeping at 100°C for 24 h.
Synthesis of ZnTPA MOFs: 88 mg of TPA (98%, Merck KGaA), 41 mg of Hmim, 150 mg of Zn(NO3)2⋅6H2O, and 8 ml of water are mixed in a G30 vial (volume of 25 ml). The mixture is sonicated to disperse all the components, and the vial is placed inside the microwave reactor at 180°C for 50 min. After the synthesis, ZnTPA powder is activated by the same method as ZnIPA.
Synthesis of ZnTPA MOFs: 88 mg of TPA (98%, Merck KGaA), 41 mg of Hmim, 150 mg of Zn(NO3)2⋅6H2O, and 8 ml of water are mixed in a G30 vial (volume of 25 ml). The mixture is sonicated to disperse all the components, and the vial is placed inside the microwave reactor at 180°C for 50 min. After the synthesis, ZnTPA powder is activated by the same method as ZnIPA.
3
Synthesis and Characterization of Rare Earth Magnets
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All the materials used in this work except liquorice were commercially available and employed without further purification. Tb(NO3)3·6H2O with a molecular weight of 453.03 g mol−1, Mn(NO3)2·4H2O with a molecular weight of 251.01 g mol−1, Zn(NO3)2·6H2O with a molecular weight of 297.49 g mol−1 with a purity of over 99% were purchased from Merck company. XRD (X-ray diffraction) patterns were collected from a diffractometer of the Philips Company with X'PertPro monochromatized Cu Kα radiation (λ = 1.54 Å). The microscopic morphology of the products was studied by FESEM (Field Emission Scanning Electron Microscopy) (Mira3 Tescan) and TEM (Transmission Electron Microscopy) (HT-7700). EDS (Energy Dispersive Spectrometry) analysis was studied by XL30, Philips microscope. Magnetic properties were measured using VSM (vibrating sample magnetometer) (Meghnatis. Daghigh Kavir Co.; Kashan Kavir; Iran). The N2 adsorption/desorption analysis (BET) was performed at −196 °C using an automated gas adsorption analyzer (Tristar 3000, Micromeritics).
4
Synthesis of Metal-Organic Frameworks
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All reagents including Zn(NO3)2·6H2O, ammonium iron(ii ) sulfate·6H2O, deionized water, hydrochloric acid, NH4OH, sulfuric acid, NaOH, nitric acid, tetraethyl orthosilicate (TEOS), thiourea (TU), 2-methyl imidazole (2-mIm), methanol, 2-mercaptobenzothiazole (2-MBT), 1000 mg L−1 solutions of Ag(i ) and Pd(ii ), ammonium persulfate (APS), and ethanol with the analytical grade were purchased from Merck (Germany).
5
Enhanced Oil Recovery in Sandstone Reservoir
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A sandstone reservoir in Iran provided the crude oil and core. The density, API, and crude oil viscosity at a reservoir pressure of 1800 Psi and temperature of 60 °C are 0.846 cm/g, 28, and 9.9 cP, respectively. Core porosity, core permeability, and GOR were found to be 22.5%, 27.45 mD, 240 scf/STB, and 232, in that order. Figure 1 displays the SARA (saturate-aromatic-resin-asphaltene) test findings.![]()
Compositional specifications of the oil.
6
Ofloxacin Removal from Aqueous Solution
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All the chemicals employed were reagent grade or higher in quality. OFL, ultrapure hydrochloric acid (HCl) 30%, Zn(NO3)2·6H2O, 2-methylimidazole, Zn(CH3COO)2·2H2O, and trimesic acid (H3BTC) were purchased from Merck (Milano, Italy). High Performance Liquid Chromatography (HPLC) gradient–grade acetonitrile (ACN) and absolute ethanol were purchased by VWR International (Milano, Italy), H3PO4 (85%w/w), methanol for Liquid Chromatography Mass Spectrometry LC/MS, and water for LC/MS by Carlo Erba Reagents (Cornaredo, Milano, Italy). Aqueous OFL solution (305 mg L−1) was prepared in tap water and stored in the dark at 4 °C before use.
7
Synthesis of Zn-based Metal-Organic Framework
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The reaction mixture consisting of Zn(NO3)2·6H2O (0.0594 g, 0.2 mmol, Merck, St. Louis, MO, USA), 3-DPPy (0.0712 g, 0.2 mmol), and 1,4-benzenedicarboxylic acid (0.0332 g, 0.2 mmol, Merck, St. Louis, USA) in 20 mL of N,N-diethylformamide (DEF, TCI, Fukaya City, Japan) was sealed in a high-pressure reactor (100 mL) and heated at 120 °C under autogenous pressure for 3 d. The reactor was slowly cooled down to room temperature. The resulting colorless crystals were obtained by filtration and washed with DEF. The crystals were air-dried for a few days to give a yield of 0.0583 g (50%). Anal. calcd. for C34H20N2O4Zn (585.92): C 69.70, H 3.44, N 4.78; found: C 69.40, H 3.49, N 4.87%.
8
Synthesis of ZnO-Bi2O3 Bimetallic Nanoparticles
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Some distilled water was added to the B. Multifida extract and its volume reached 50 mL to synthesize NPs in two separate Erlenmeyer flasks. These two Erlenmeyer flasks were placed in a water bath at 80 °C. A solution was prepared with 1 : 2 ratio of Zn(NO3)2.6H2O (Merck) and Bi(NO3)3.5H2O (Merck). This solution was stirred for 2 hours at 80 °C and dried at 90 °C for 15 hours. At last, the dried sample was calcined in a digital furnace at 500 °C for 2 hours. It was proven that synthesized orange precipitate is bimetallic nanoparticles (ZnO−Bi2O3 NPs).
9
Antibacterial Evaluation of Strychnos nux-vomica Leaves
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S. nux-vomica leaves were collected from forest areas of Western Ghats, South India, in June 2016. The plants were identified and authenticated by the Botanical Survey of India (Southern Circle), Coimbatore (BSC/SRC/5/23/2016/Tech/1197). The Zinc nitrate hexahydrate crystals [Zn (NO3)2·6H2O] of EMPLURA® grade was purchased from Merck (Darmstadt, Germany). The chemicals and glassware were procured from Sigma-Aldrich (St Louis, MO, USA) and Himedia (Mumbai, India). Multidrug-resistant clinical bacteria such as MRSA, P. aeruginosa, A. baumannii, and E. coli were isolated from the pus samples of DFU patients admitted at Rajah Muthiah Medical College and Hospital (RMMCH), India with the approval of Institutional Human Ethical Committee (M18/RMMC/2015). The patient samples were collected after obtaining informed consents from them. Preliminary identification and antibiotic susceptibility pattern of clinical isolates were processed at the Division of Microbiology, RMMCH. The results were further confirmed with VITEK 2® Compact automated system using GN Test Kit VTK2/GP Test Kit VTK2 (bio Mérieux, Marcy l’Etoile, France). The standard bacterial strains, S. aureus ATCC 29213, P. aeruginosa ATCC 27853, E. faecalis ATCC 29212, and E. coli ATCC 25922, were obtained from CSIR-National Chemical Laboratory, Pune, India.
10
Synthesis of ZnO Nanoparticles from Plant
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All chemicals used in this experiment were of analytical grade and purchased from local suppliers. Analytical grade compounds of zinc (II) nitrate [Zn (NO3)2.6H2O], and sodium hydroxide were obtained from Merck. Commercial ZnO-NPs (US3580, NanoSany, Iran) (35–45 nm, 99% purity, spherical shape) were purchased from NanoSany, Iran. The fresh plant materials were obtained from local traders (Ardabil, Iran) and further identified by a botanist.
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