室温下,于中性或弱碱性溶液中,fecl3溶液与沉淀剂naoh, (nh4)2co3, nh4hco3和(nh2)coonh4的沉淀反应可制得-feooh;fe(no3)3、fe2(so4)3溶液与沉淀剂naoh, (nh4)2co3、nh4hco3和(nh2)coonh4的沉淀反应可制得-feooh;fecl3, fe(no3)3, fe2(so4)3溶液与氨水反应只能得到fe(oh)3胶体。亚铁盐溶液fecl2和...
Then, 2.7 g de FeCl3·6H2O was added and, once it was totally dissolved, 1.06 g of FeCl2·4H2O was added to the mixture. To synthesize this sample, N2 was bubbled through the solution during the precursor's addition to reduce the presence of oxygen as much as possible, which produces...
FeCl3·2H2O was the primary iron compound at x(H2O) ≥ 80%, which was reduced to FeCl2. In addition, oxidative-absorption of H2S by homogeneous [bmim]Fe(III)Cl4–H2O mixtures demonstrated that increasing x(H2O) increased the weight percent of absorbed H2S and decreased the volatile HCl ...
FeCl2·4H2O and FeCl3·6H2O were added (2:1 molar ratio). Then, the temperature was increased to 90 ◦C, under stirring at 1100 rpm and 24 mL of aqueous ammonia was added to induce the precipitation of the nanoparticles. The solution was stirred for 30 min. Finally, 10 mL of ...
FeCl3·6H2O and FeCl2·4H2O with Fe3+/Fe2+ molar ratio of 2:1 (the addition of FeCl3·6H2O should subtract the amount of FeCl3 that added in MAFC pretreatment) and 0.1 g of anhydrous glucose were dispersed in 80 mL water. The aqueous solutions of Fe3+ and Fe2+ were magnetic stirred...
1.8 µL, 1.6 µL, 1.4 µL, 1.2 µL, 1.0 µL, 0.8 µL, 0.6 µL, 0.4 µL, 0.2 µL of FeCl3 (10 mM) was added to each sensor solution to make a total volume of 200 µL in acetic acid, separately. After stirring the solution for a few seconds, the ...
Chemicals Microcrystalline cellulose and acrylamide (Sigma-Aldrich, Banagalore, India), FeCl3·6H2O and FeCl2·4H2O (Merck, Bangalore, India), liquor alkali (Fischer Scientific, Mumbai, India), and nitrate salts of separate metal particles were utilized as obtained, without further sanitization. ...
The FeCl3·6H2O (0.1 M) and FeCl2·4H2O (0.05 M) were used as precursor materials. Both the precursor materials were dissolved in deionized water separately and mixed at room temperature. Ammonium hydroxide solution (25%) was added drop by drop until PH became 10. The mixed solution was ...
bioengineering Article RETRACTED: Mycosynthesis of Hematite (α-Fe2O3) Nanoparticles Using Aspergillus niger and Their Antimicrobial and Photocatalytic Activities Ebrahim Saied 1,* , Salem S. Salem 1 , Abdulaziz A. Al-Askar 2,*, Fathy M. Elkady 3 , Amr A. Arishi 4 and Amr H. Hashem 1,...
4.3. Preparation of Aminoclay-Fe3O4 Hybrid Composites [1.9 g FeCl3•6H2O ⊕ 0.7 g FeCl2•4H2O] was dissolved in 40 mL of DI water and continuously stirred for 30 min before 10 mL of NaOH 10 M was added; stirring thereafter was continued overnight (12 h). MgAC in amounts of ...