Photo-Irradiation Induced Recyclable Coloration For Soda-Lime-Silica Glass

Three types of easily recyclable coloured soda-lime-silica glasses have been developed by the photo-irradiation induced coloration and decoloration by heating. One brown glass was coloured by the x-ray induced defects: the second yellow glass was based on formation and dissolution of silver nanoclusters induced by x-ray irradiation and thermal annealing; and the third purple glass was coloured by changing the oxidation state of manganese. Other than the yellow and purple colours, the induced brown colour is unstable at room temperature due to the decay of the induced defects.