Scientists recover precious metals using technology chinadaily.com.cn | Updated: 2021-04-02 13:34 Share CLOSE Professor Bian Zhenfeng shows electronic equipment waste before and after (right) being treated by "Photocatalytic dissolution of precious metals" technology in Shanghai, on March 30, 2021. [Photo/Xinhua] Chinese scientists have invented "Photocatalytic dissolution of precious metals" technology which can recover precious metals from discarded electronic equipment in an effective and green way at Shanghai Normal University in Shanghai. This technological invention is expected to promote the reform in precious metals smelting field, which addresses the problem that precious metals such as gold and platinum are valued materials for a variety of applications, but their scarcity poses a risk of supply disruption.