Abstract In the current study, a novel nanomaterial called nanomagnetite/copper oxide/potassium carrageenan nanocomposite (MKCO) was fabricated to include Fenton (nanomagnetite, NM) and Fenton-like reagent (copper oxide nanoparticles, NCO) in matrix of potassium biopolymer. The prepared solid materials were characterized by different physicochemical techniques, such as TGA, N 2 adsorption/desor...

nanomagnetite-fe3o4 is used as a highly efficient, mild, green and recyclable nanomagnetite catalyst for the synthesis of 4,4´-(arylmethylene)-bis(3-methyl-1-phenyl-1h-pyrazol-5-ol) derivatives in solvent-free conditions. the condensation reaction of 3-methyl-1-phenyl-1h-pyrazol-5(4h)-one with aromatic aldehydes affords the title compounds in high yields and short reaction times. the nanocataly...

Toner is a main component of electrophotographic printing and copying processes. One of the most important ingredients of toner is magnetite (Fe3O4) which provides the tribocharging property for toner particles. In this study, nano- and microparticles of Fe3O4 were synthesized using the coprecipitation method and different amounts of lauric acid as a surfactant. The synthesized nano and micro F...

Magnetosome biomineralization and chain formation in magnetotactic bacteria are two processes that are highly controlled at the cellular level in order to form cellular magnetic dipoles. However, even if the magnetosome chains are well characterized, controversial results about the microstructure of magnetosomes were obtained and its possible influence in the formation of the magnetic dipole is...

Nanomagnetites were used as a most efficient agent for removal of heavy metals such as As and Cr for cleaning polluted water as heavy-metal contamination in groundwater is one of the severe global problems. In India, arsenic poisoning is very common but the major hurdle in synthesizing nanomagnetite in the lab is, high cost by decomposition method using FeOOH and oleic acid in 1-ODE. Here we ar...

Pada proses sintesis nanopartikel Fe₃O₄ menggunakan metode green synthesis dengan menambahkan FeCl₃.6H₂O dan ekstrak daun nanas. Ekstrak nanas digunakan sebagai reduktor alami dimana memiliki kandungan hidroksil karbonil, yang bertindak agen pereduksi disintesis. Kemudian setelah presipitat didapatkan maka selanjutnya akan dilakukan kalsinasi. Dimana temperatur kalsinasi dalam menjadi faktor pe...