| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1266160 | Ultrasonics Sonochemistry | 2013 | 7 Pages |
•A simple and eco-friendly way to synthesize the Fe/TiO2/Ag core–shell magnetic particles is proposed.•A TiO2-assisted electroless plating of Ag layer without environmentally toxic additives.•A high degree of morphological control of Ag layer by introducing sonication and adjusting the NH4OH concentration.•Brilliant white color magnetic particles were obtained without loss of magnetic properties.
In this work, high-reflectance brilliant white color magnetic microspheres comprising a Fe/TiO2/Ag core–shell structure with a continuous, uniform compact silver layer were successfully fabricated by TiO2-assisted electroless plating in a simple and eco-friendly method. The coating procedure for TiO2 and Ag involved a sol–gel reaction and electroless plating with ultrasound treatment. The electroless plating step was carried out in an eco-friendly manner in a single process without environmentally toxic additives. The TiO2 layer was used as a modification layer between the Fe microspheres and the silver layer to improve adhesion. A continuous and compact silver layer could be formed with a high degree of morphological control by introducing ultrasonication and adjusting the ammonium hydroxide concentration.
