Cobalt-lignosulfonate complex derived non-noble catalysts: Facile valorization for high-performance redox conversion of organic pollutants

A versatile and scalable preparation of hierarchically porous and highly active catalysts from a lignosulfonate biopolymer was proposed. The materials were systematically evaluated for catalytic oxidation of metformin, sulfamethoxazole, and phenol and reductive hydrogenation of 4-nitrophenol and 1-nitronaphthalene as model pharmaceutical and industrial pollutants. Temperature, background matrix, substrate, catalyst and chemical loading govern...