Upcycling Waste Etchant into a Doped-Cu 2 O Electrocatalyst for Efficient Acetoxime Synthesis from Nitrate and Acetone

H-mediated hydrogenation process. Techno-economic analysis confirms a substantial profit of over $1500 per ton of acetoxime produced. The general applicability of this methodology is demonstrated by its successful extension to 31 distinct industrial waste sources. This work establishes a waste-to-wealth paradigm, offering a sustainable route for electronic waste valorization and the advancement of green chemical synthesis.