Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nanometer ferrite particle
The invention discloses a preparation method of a nanometer ferrite particle. The preparation method of the nanometer ferrite particle includes steps: 1) dissolving nickel nitrate, zinc nitrate salt and ferric nitrate in absolute ethyl alcohol according to a molar ratio, and obtaining a metal nitrate and ethyl alcohol mixing solution; 2) dissolving a silane coupling agent in the water, adding paper pulp fibers, and obtaining paper pulp fiber dispersion liquid; 3) dispersing the metal nitrate and ethyl alcohol mixing solution in the paper pulp fiber dispersion liquid, and using ammonium water to regulate PH (potential of hydrogen) value to 7-9; 4) transferring the paper pulp fiber dispersion liquid obtained in the step 3) into a stainless steel autoclave, performing hydrothermal crystallization, using ethyl alcohol to wash an obtained product for several times and drying the obtained product, and then obtaining nanometer powder; 5) roasting the nanometer powder after being dried at high temperature so as to obtain the nanometer ferrite particle. The preparation method of the nanometer ferrite particle has the advantages that a molecule of each selected paper pulp fiber contains a large quantity of organic functional groups such as hydroxide radical and carboxyl groups, complex action can be achieved between the selected paper pulp fibers and metal ions, and the metal ions can be bound on fiber molecule bodies so as to form fiber porous structure.
Preparation method of nanometer ferrite particle
The invention discloses a preparation method of a nanometer ferrite particle. The preparation method of the nanometer ferrite particle includes steps: 1) dissolving nickel nitrate, zinc nitrate salt and ferric nitrate in absolute ethyl alcohol according to a molar ratio, and obtaining a metal nitrate and ethyl alcohol mixing solution; 2) dissolving a silane coupling agent in the water, adding paper pulp fibers, and obtaining paper pulp fiber dispersion liquid; 3) dispersing the metal nitrate and ethyl alcohol mixing solution in the paper pulp fiber dispersion liquid, and using ammonium water to regulate PH (potential of hydrogen) value to 7-9; 4) transferring the paper pulp fiber dispersion liquid obtained in the step 3) into a stainless steel autoclave, performing hydrothermal crystallization, using ethyl alcohol to wash an obtained product for several times and drying the obtained product, and then obtaining nanometer powder; 5) roasting the nanometer powder after being dried at high temperature so as to obtain the nanometer ferrite particle. The preparation method of the nanometer ferrite particle has the advantages that a molecule of each selected paper pulp fiber contains a large quantity of organic functional groups such as hydroxide radical and carboxyl groups, complex action can be achieved between the selected paper pulp fibers and metal ions, and the metal ions can be bound on fiber molecule bodies so as to form fiber porous structure.
Preparation method of nanometer ferrite particle
CHEN JIMEI (Autor:in)
08.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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