Electronic scrap holds hidden treasures, and skilled hands recover pure gold from discarded components with precision. Through a detailed process, circuit boards are broken down, revealing valuable ...
An curved arrow pointing right. One ton of circuit boards from old e-waste can contain 100 times more gold than a ton of ore mined from the ground. Now, scrappers like Wade Crawley in Sydney ...
Zadehnazari synthesized two innovative vinyl-linked covalent organic frameworks (VCOFs), materials designed to extract gold ions and nanoparticles from discarded circuit boards. Among these ...