Method for solid support of modified nano titanium dioxide by chemically plating nickel-zinc-phosphor alloy

Abstract

The invention relates to a method for modifying nano titanium dioxide supported on chemical nickel plating zinc phosphorus alloy which can make modifying nano TiO2 content in a compound plating layer reach to above 60wt%, the compound plating layer combines with metallic matrix well, and can be used for light-catalyzed reaction processed in solution. A special technique is that: firstly, confecting acet solution containing 6-12 g / L modifying TiO2, depositing a modifying nano TiO2 grain layer on the copper or nickle matrix by using electrophoresis technique, then placing the copper sheet or nickel sheet or plating nickel plastic sheet doping the nano TiO2 layer into the chemical plating nickel zinc phosphorus alloy solution and leaving period of time, then preparing a nickel zinc phosphorus alloy / modifying nano TiO2 compound plating layer and realizing supporting on modifying nano TiO2. The method can realize supporting on nano TiO2 granule, and increase nano TiO2 content in the depositing layer.

Description

technical field [0001] The invention relates to the preparation technology of nanometer materials, specifically adopts the combined treatment method of electrophoresis and electroless plating to solve the immobilization problem of modified nano titanium dioxide in photocatalysis in solution. Background technique [0002] In semiconductor photocatalytic materials, titanium dioxide TiO 2 It has the characteristics of good biological and chemical inertness, strong oxidation performance and low cost. Generally, it can have photocatalytic activity in the ultraviolet region. Studies have shown that in nano-titanium dioxide TiO 2 Doped with carbon, sulfur, nitrogen and other elements, can make titanium dioxide TiO 2 The photocatalytic response spectrum is red shifted, and it can have photocatalytic activity in the visible light range. [0003] In sewage treatment and other occasions, it is necessary to carry out photocatalytic reaction in the solution, and directly suspend nano-...

AI Technical Summary

Problems solved by technology

In the existing technology, the polymer support itself can be covered with titanium dioxide TiO 2 Photodegradation can only be used for a short period of time; although various glass carriers have good light transmission performance, they have the problem of poor adhesion; ceramic carriers have poor light transmission performance, and the pore size is not easy to match with the catalyst particle size; 3+ 、Cr 3+ Ions easily enter titanium dioxide TiO 2 layer, destroying its crystal lattice, reducing the catalytic activity, and titanium dioxide TiO 2 Poor bonding performance between layer and metal carrier

Adding Titanium Dioxide TiO to Electroless Nickel-Based Alloy Plating Bath 2 Granules that make nickel base alloys with titanium dioxide TiO 2 Co-deposition of particles onto metallic or non-metallic substrates is the solution to titanium dioxide TiO 2 An important way to immobilize, but the co-deposited layer obtained by this method is titanium dioxide TiO 2 The volume ratio is generally less than 40%, and the content is low, which affects the use effect