Silica coated Fe 3 O 4 magnetic nanospheres for high removal of organic pollutants from wastewater

Improved Removal of Cr(VI) using Fe3O4/C Magnetic Nanocomposites Derived from Potassium Fulvic Acid

“…Figure S9 display the FTIR of Fe 3 O 4 /C and Cr(VI) load Fe 3 O 4 /C. For the picture of Fe 3 O 4 /C, the characteristic peaks emerge at 2642, 1557, 1129 and 557 cm −1 , correspond to the stretching mode of the O−H, the C=C of the aromatic structures, the C−O stretching mode and the Fe−O bond, respectively . These peaks confirmed that carbon was triumphantly coats the surface of Fe 3 O 4 during the calcinations process.…”

Synthesis of a new magnetic metal–organic framework nanocomposite and its application in methylene blue removal from aqueous solution

“…Then, 3 mL TEOS was added slowly into the mixture with the reaction stirred, and further stirred for 10 min. The harvested particles were collected with a magnet, washed with ethanol and ultrapure water several times, and dried in vacuum at 70 °C for 7 hr …”

Preparation of novel palladium nanoparticles supported on magnetic iron oxide and their catalytic application in the synthesis of 2‐imino‐3‐phenyl‐2,3‐dihydrobenzo[d]oxazol‐5‐ols

“…The mixture was heated for 0.5 h at 70 °C and the black magnetite solid product filtered, washed with water and dried at 80 °C for 12 h. Stage 2: Coating of the Fe 3 O 4 magnetic nano‐particles with SiO 2 (Fe 3 O 4 @SiO 2 ). Fe 3 O 4 @SiO 2 was synthesized according to the literature . Briefly, Fe 3 O 4 MNPs (0.2 g, prepared in the Stage 1) were dispersed into a solution containing ethanol and distilled water (250 ml, V/V = 4:1) and NH 3 .H 2 O (3 ml) under ultrasonication.…”