Fe(NO3)3·9H2O, Ni(NO3)2·6H2O and Co.(NO3)2·6H2O were purchased from Sigma-Aldrich. Isopropyl alcohol, glycerol and ethanol were purchased from Sinopharm Chemical Reagent Co., Ltd. All purchased chemicals were directly used. Ultrapure water used throughout the experiments was obtained from a MilliQ water purification system.
Fe no3 3 9h2o
Manufactured by Merck Group
Sourced in United States, Germany, Italy, Spain
Fe(NO3)3·9H2O is a chemical compound composed of iron, nitrogen, oxygen, and water. It is a crystalline solid and is commonly used in various laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
Ni no3 2 6h2o, by Merck Group (11 mentions)
Co no3 2 6h2o, by Merck Group (10 mentions)
Sodium hydroxide (naoh), by Merck Group (8 mentions)
Cu no3 2 3h2o, by Merck Group (6 mentions)
Sr no3 2, by Merck Group (5 mentions)
Na2co3, by Merck Group (4 mentions)
Polyvinylpyrrolidone, by Merck Group (4 mentions)
Al no3 3 9h2o, by Merck Group (4 mentions)
Zn no3 2 6h2o, by Merck Group (4 mentions)
Citric acid c6h8o7, by Merck Group (3 mentions)
Cr no3 3 9h2o, by Merck Group (3 mentions)
Mg no3 2 6h2o, by Merck Group (3 mentions)
Fecl3 6h2o, by Merck Group (3 mentions)
Hydrochloric acid (hcl), by Merck Group (3 mentions)
Agno3, by Merck Group (3 mentions)
Cocl2 6h2o, by Merck Group (2 mentions)
Cuso4 5h2o, by Merck Group (2 mentions)
Gd no3 3 6h2o, by Merck Group (2 mentions)
C6h8o7, by Merck Group (2 mentions)
Cisplatin, by Merck Group (2 mentions)
89 protocols using fe no3 3 9h2o
1
Synthesis of Metal Nitrate Complexes
2
Hydrothermal Synthesis of BiFeO3, BiFeO3-rGO, and Bi25FeO40-rGO Nanocomposites
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Synthesis of BiFeO3 nanoparticles, BiFeO3-rGO, and Bi25FeO40-rGO nanocomposites was carried out using the hydrothermal technique. Bi(NO3)3.5H2O (Sigma-Aldrich, 98.0%) and Fe(NO3)3.9H2O (Sigma-Aldrich, 98.0%) were used as precursors during synthesis of pure BiFeO3 nanoparticles. Graphene oxide (GO) synthesized using modified Hummer’s method was used as an additional precursor for the synthesis of the desired nanocomposites. Pure BiFeO3 nanoparticles were synthesized at a hydrothermal reaction temperature of 180 °C. Most interestingly, a synthesis temperature of 180 °C yielded the Bi25FeO40-rGO nanocomposite whereas the BiFeO3-rGO nanocomposite required an elevated temperature of 200 °C. The synthesis procedure and effects of hydrothermal reaction temperature on the crystal structure of the nanocomposites have been elucidated in our previous investigation38 (link).
3
Chitosan-based Composite for Heavy Metal Removal
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Chitosan (CS) with a relative viscosity-average molecular weight of 342 kDa and a deacetylation degree (DD) of 85% was purchased from Sigma-Aldrich. Glutaraldehyde (GA) solution at a concentration of 25% (w/w) in H2O was used as cross-linker and was also acquired from Sigma-Aldrich. The zeolite fraction, of sizes in the 0.032–0.050 mm range, was obtained from the volcanic tuffs cropping out in the Macicas area (Cluj County, Romania) and was used as inorganic filler within the CS matrix. 4,4′–Ethylenebis(2,6—morpholinedione) (EDTA dianhydride (EDTAD)) and N,N-Bis [2—(2,6-dioxomorpholino)ethyl]glycine (DTPA dianhydride (DTPAD)), provided by Sigma-Aldrich, were used as received, without any further purification.
CoCl2∙6H2O, CuSO4∙5H2O and Fe(NO3)3∙9H2O were used as sources of HMIs and were purchased from Sigma-Aldrich. Hydrochloric acid, sodium hydroxide, acetic acid and methanol of the highest commercial purity, provided by Chemical Company, Romania, were used as received.
CoCl2∙6H2O, CuSO4∙5H2O and Fe(NO3)3∙9H2O were used as sources of HMIs and were purchased from Sigma-Aldrich. Hydrochloric acid, sodium hydroxide, acetic acid and methanol of the highest commercial purity, provided by Chemical Company, Romania, were used as received.
4
Fabrication of Functionalized Nanomaterials
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Polyacrylonitrile powder (PAN, MW = 150 000 g mol−1), N,N-dimethylformamide (DMF), tetraethylorthosilicate (TEOS), aminopropyltriethoxysilane (APTES), HCl 37% wt, cetyltrimethylammonium bromide (CTAB), hydroxylamine hydrochloride (NH2OH·HCl), NH4OH 25% wt, Fe(NO3)3·9H2O, Na2HAsO4·7H2O, Na2CO3, absolute ethanol, toluene and glutaraldehyde (GA) 50%, were purchased from Sigma-Aldrich. Branched polyethylenimine (PEI, MW = 10 000 g mol−1) was purchased from Alfa-Aesar. All chemicals were analytical grade and were directly used without further purification. High purity water with a resistivity of 15 MΩ cm−1 was used in all the experiments.
5
Synthesis of Reduced Graphene Oxide
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A commercial GO aqueous suspension (4 mg mL−1, particle size < 10 µm [42 ], supplied by Graphenea, San Sebastian, Spain) was used as a starting material to obtain rGO. Degussa P25 TiO2 (TiO2 in the following, used as pure oxide), L-ascorbic acid, Fe(NO3)3·9H2O, Cu(NO3)2·3H2O, and Imidacloprid® were acquired from Sigma Aldrich (Milan, Italy). Tionite (TIO in the following) was provided by Opigeo S.r.L (Grisignano di Zocco, VI, Italy).
6
Toxicity of Soluble Metal Salts on Protozoa and Bacteria
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The soluble metal salts tested in protozoan and bacterial toxicity tests were as follows: Ni(NO3)2·6H2O (Merck KGaA, Nottingham, UK, purity ≤ 100%), Co(NO3)2·6H2O (VWR, 98%), Gd(NO3)3·6H2O (Sigma Aldrich, Oslo, Norway, 99.9%), Sr(NO3)2 (Honeywell, Morristown, NJ, USA, 100%), Mn(NO3)2·6H2O (American Elements, Los Angeles, CA, USA, 100%), La(NO3)3·6H2O (Treibacher Industrie AG, Althofen, Austria, ≥95–100%), Ce(NO3)3·6H2O (Treibacher Industrie AG, ≥95–100%), Fe(NO3)3·9H2O (Sigma Aldrich, 99.99%), Pr(NO3)3·6H2O (Sigma Aldrich, 99.9%) Nd(NO3)3·6H2O (Sigma Aldrich, 99.9%). pH values of the stock solutions (1000 mg/L) were in the range of 4.5–5.6 (in DI water) and 5.2–6.6 (in 2% NaCl), except for Fe(NO3)3 that was more acidic (pH 2.1 in DI water and 2.3 in 2% NaCl).
7
Synthesis of Metal-Doped Ceria/MCM-41 Catalysts
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All regents were used without purification. Unless otherwise noted, all of the chemicals (Fe(NO3)3 ∙ 9H2O, Ni(NO3)2 ∙ 6H2O, Co(NO3)2 ∙ 6H2O, Rh(NO3)3 ∙ xH2O, CeO2, and MCM-41) were purchased from Sigma Aldrich. The information of precursors, loading amount and atomic ratio were listed in Supplementary Table 1 . All the catalysts were synthesized using an incipient wetness co-impregnation method over the CeO2 or MCM-41 supports with an aqueous solution of the respective metal precursors. All the catalysts were dried at 80 °C overnight and then calcined at 290 °C for 2 h with a heating ramp rate of 0.8 °C min−1.
8
Synthesis of Fe2O3/Fe3O4 Nanocomposite
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The graphene oxide (GO) used in this work was produced from natural graphite flakes (Acros, Geel, Belgium) by a modified Hummer’s method [21 (link)]. The aqueous GO dispersion was centrifuged at 11,000 rpm for 30 min and was redispersed in de-ionized (DI) water more than 3 times. By discarding the supernatant, GO suspension in N, N-dimethyl formamide (DMF, 98%, Sigma-Aldrich, St. Louis, MO, USA) with 2 mg mL−1 was made.
Fe2O3/NG was synthesized by a solvothermal method. Fe(NO3)3·9H2O (840 mg, 99.9%, Sigma-Aldrich) was dissolved in the as-obtained GO suspension (100 mL). After stirring for 60 min, the mix was transferred into a Teflon-lined autoclave and was kept at 180 °C for 6 h. The as-obtained gel was rinsed in DI water for 24 h, then freeze-dried at −60 °C, 20 Pa for 24 h to generate Fe2O3/NG. The as-prepared bulk Fe2O3/NG was ground to powder with a mortar and pestle. After treating in a home-made microwave plasma fluidized bed (power of microwave = 400 W, Ar 40 sccm, H2 10 sccm, 20 min), Fe2O3/Fe3O4/NG was obtained.
Fe2O3/NG was synthesized by a solvothermal method. Fe(NO3)3·9H2O (840 mg, 99.9%, Sigma-Aldrich) was dissolved in the as-obtained GO suspension (100 mL). After stirring for 60 min, the mix was transferred into a Teflon-lined autoclave and was kept at 180 °C for 6 h. The as-obtained gel was rinsed in DI water for 24 h, then freeze-dried at −60 °C, 20 Pa for 24 h to generate Fe2O3/NG. The as-prepared bulk Fe2O3/NG was ground to powder with a mortar and pestle. After treating in a home-made microwave plasma fluidized bed (power of microwave = 400 W, Ar 40 sccm, H2 10 sccm, 20 min), Fe2O3/Fe3O4/NG was obtained.
9
Synthesis of Luminescent Materials
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La(NO3)3·6H2O (99.9%), Fe(NO3)3·9H2O (99.9%), Sr(NO3)2 (99.9%), and C6H8O7 (99%), NH4OH (33%), HNO3 (65%), and CTAB (99%) were purchased from Sigma Aldrich. CR dye, C32H22N6Na2O6S2 (Brixworth, Northants, United Kingdom). All chemicals were used as-received.
10
Synthesis of Sr-Me-Fe Oxide Particles
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SrMe2Fe16O27 particles were synthesized utilizing a sol-gel autocombustion method due to the high chemical homogeneity achieved in these syntheses (Hench & West, 1990 ▸ ). The method contains three steps: first Sr(NO3)2, Me(NO3)2·6H2O and Fe(NO3)3·9H2O (all Sigma-Aldrich technical grade with purity >98%) were dissolved in demineralized water in stoichiometric molar ratios [Sr2+]:[Me2+]:[Fe3+] = 1:2:16. Citric Acid was dissolved and added in equal ratio to the nitrates, [C8H8O7] = 2[Sr2+] + 4[Me2+] + 48[Fe3+], under constant stirring. The solution was neutralized with NH4OH and dried overnight in a convection oven at 100°C until a gel was formed. In the second step, the gel was fired in a preheated furnace at 350°C for 30 min until the autocombustion had finished and subsequently cooled to room temperature in air. Finally, the resulting powder was crushed and fired in a furnace at 1200°C (SrMg2Fe16O27 and SrZn2Fe16O27) or 1300°C (SrNi2Fe16O27 and SrCo2Fe16O27) according to the following heating scheme: with a holding time of 2 h before cooling to room temperature.
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