In the depolymerization of PET, various catalysts can be used, including _enzymatic catalysts_ and _metal-based catalysts_. Enzymatic catalysts, such as _PETase_, are highly specific and can operate under mild conditions, making them environmentally friendly. Metal-based catalysts, including _zinc acetate_ and _manganese compounds_, are also effective in breaking down PET but may require higher temperatures and pressures.
