One-Pot Synthesis of Nano CuO-ZnO Modified Hydrochar Derived from Chitosan and Starch for the H2S Conversion

A novel kind of hydrochar adsorbent, modified by CuO-ZnO and derived from chitosan or starch, was synthesized for H2S adsorption. The prepared adsorbent characterized BET, XRD, EDX, SEM, XPS. results showed that the contained many amino groups as functional groups, nanometer metal oxide particles had good dispersion on surface hydrochar. maximum sulfur capacity reached 28.06 mg/g-adsorbent under optimized conditions. amine group significantly reduced activation energy between conducive to rapid diffusion among lattices. Simultaneously, cationic polyacrylamide a steric stabilizer could change formation process CuO ZnO nanoparticles, which made particle size smaller, enabling them react with sufficiently easily. This both starch be promising removal.