5 results about "Silver ion" patented technology

A wash product and method for both washing and disinfecting articles during a washing cycle where the washing can be done in a conventional washing machine using the combination of a conventional detergent for removing residue from the articles and a source of silver ions and a hydantoin for increasing the level of available silver ions to a level that is greater than the level of available silver ions normally available if the source of silver ions were used without the hydantoin.

The invention relates to a preparation method of an adsorption material for selectively adsorbing silver ions. The preparation method comprises the following steps: uniformly dispersing a chitosan-graphene oxide composite material in an acetic acid solution, adding 3-mercaptopropyltrimethoxysilane, uniformly stirring the obtained solution, adding a sodium hydroxide solution to adjust the pH value of the obtained system, adding a glutaraldehyde solution, stirring the solutions to obtain a uniformly mixed solution, standing the uniformly mixed solution at 3-4 DEG C for 20 h or more, and carrying out post-treatment to obtain the mercapto modified chitosan-graphene oxide composite material. The preparation method overcomes the shortcoming of difficulty selective adsorption of the silver ions from a complex environment of adsorption materials in the prior art. The adsorption material prepared in the invention has large adsorption capacity, can quickly selectively adsorb silver ions, and makes the silver ion adsorption balance time much shorter than the adsorption balance time in the prior art.

The invention belongs to the field of high-molecular compounds obtained through a carbon-carbon unsaturated bond reaction, and particularly relates to a soluble silver ion-containing polymerizable monomer, a preparation method thereof, a silver-containing polymer and an antibacterial coating. The soluble silver ion-containing polymerizable monomer can be dissolved in water or an organic solvent, and has a structure of A(AgLn)x, wherein L is a ligand capable of being complexed with silver, n is the number of ligands, A is an acid radical ion, and x is the number of acid radical negative charges; wherein at least one of A and L contains a carbon-carbon double bond. According to the soluble polymerizable monomer containing the silver ions, the polymerizable monomer containing the silver ionsis prepared in a complexing mode, and the silver ions are combined to carbon-carbon unsaturated bonds in a covalent bond or ionic bond mode. The polymerizable monomer can be dissolved in water or an organic solvent, and a silver ion-containing aqueous solution coating, a silver ion-containing organic solvent coating or a silver ion-containing emulsion coating can be conveniently obtained in a homopolymerization or copolymerization mode.

The invention belongs to the technical field of electrode preparation and particularly relates to a preparation method of an AgX@Ag core-shell electrode material. AgX is pretreated by using polyethylene glycol; surface modification is performed on AgX by utilizing a sulfhydryl silane coupling agent; AgX nucleation is uniformly dispersed; a shape is regular, granularity is small, agglomeration is not generated, and a surface is rich in sulfydryl active sites; a silver ammonia solution is slowly restored by using a weak reducing agent glucose to obtain silver ions; and in a silver reduction process, silver particles can carry out heterogeneous nucleation at the active sites preferentially, and then a reduced silver crystal nucleus grows directionally on the surface of AgX so as to form a silver particle coated compact AgX@Ag core-shell material. A principle is scientific and reliable, a mixing degree of Ag and AgX is improved from the perspective of liquid-phase synthesis of the preparedAgX@Ag core-shell material, Ag and AgX are subjected to coating contact and a contact degree of mechanical mixing is greatly exceeded, and the better contact degree and smaller electrode particles are possessed.

The invention discloses a purification method of oxaliplatin. The final silver removal operation of oxaliplatin purification is changed into an electrolytic tank method from an original chemical method, so other halogenating reagents can be avoided, and silver ion removal effect is superior compared with other chemical removal methods. The method is simple in reaction conditions, simple, convenient and efficient to operate, safe to implement, more friendly to environment and suitable for industrial production, and meets the requirements of green chemistry and atomic economy.