(385c) Catalytic Pyrolysis of Disposable Masks: Adjusting Nickel Content Ratios in Metal Oxide Catalysts for Hydrogen-Rich Gas and Carbon Nanomaterial Quality

The widespread use and disposal of disposable masks have raised social and environmental concerns. To address this issue, we explored the application of non-noble metal catalysts, specifically metal oxides (LaNiO₃, Ni/Al₂O₃, Ni/Zeolite 4A), in the catalytic pyrolysis of disposable masks. Our study focused on impregnated catalysts (Ni/Al₂O₃, Ni/Zeolite 4A), along with LaNiO₃. We found that these catalysts yielded comparable outcomes in terms of hydrogen concentration in the product gas and the structural purity of the resulting carbon nanomaterial. This suggests that the nickel content ratio in the catalyst plays a crucial role in the production of hydrogen and carbon nanomaterials during the catalytic pyrolysis of disposable masks. These findings indicate the potential for catalytic pyrolysis to support the sustainable production of carbon nanomaterials and clean gaseous fuels, offering a practical solution for transforming waste masks.