Jishuo Fan

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3. Results and Discussion Before the experiment, the lead–containing waste residue produced in electrolytic manganese was firstly leach from solid state, and then enriched and concentrated by ion exchange method, so that the concentration of Pb2+ reached the concentration range suitable for membrane electrolysis.

3. Results and Discussion 3.1. Characterization of Silane-Modified ZSM-5 The morphology of ZSM-5 particles before and after modification is depicted in Figure 4. All ZSM-5 zeolite particles demonstrate a consistent parallelepiped shape and a sleek surface, measuring approximately 1 × 0.5 × 0.2 μm3 in size [27]. This indicates that the modification layer is slender and does not impact the morphology of ZSM-5 particles.