This study synthesized three MoS₂ morphologies—nanospheres, nanoplatelets, and nanosheets—under varied conditions and incorporated them into chitosan membranes. TEM confirmed unique morphologies and crystallinity. Clean water flux showed that the nanoplatelet (P-CM) membrane had the highest flux due to higher porosity. The P-CM membrane excelled in removing Mn²⁺ and Zn²⁺ ions, achieving 93.0 ± 0.5% and 90.4 ± 1.5% removal, outperforming membranes with nanospheres (S-CM) and nanosheets (T-CM). Its superior performance is attributed to thicker nanoplatelets forming more water channels. The MoS₂‘s tri-layered structure generated reactive oxygen species (ROS) via H₂O₂ catalysis, contributing to enhanced heavy metal removal. These adsorptive-catalytic membranes combine adsorption with catalytic decomposition of heavy metals, highlighting the work’s novelty and superior performance. The membranes demonstrated excellent flux recovery and reusability (96.0 ± 0.5% for P-CM) after chemical cleaning. The findings emphasize the impact of nanomaterial morphologies on membrane performance in water treatment and environmental remediation.

这项研究在不同条件下合成了三种 MoS2 形态——纳米球、纳米片和纳米片，并将它们整合到壳聚糖膜中。 TEM 证实了独特的形态和结晶度。清洁水通量表明纳米片（P-CM）膜由于孔隙率较高而具有最高的通量。 P-CM 膜在去除 Mn2+ 和 Zn2+ 离子方面表现出色，去除率达到 93.0±0.5% 和 90.4±1.5%，优于纳米球 (S-CM) 和纳米片 (T-CM) 膜。其优越的性能归因于较厚的纳米片形成更多的水通道。 MoS2 的三层结构通过 H2O2 催化产生活性氧 (ROS)，有助于增强重金属去除。这些吸附催化膜将吸附与重金属的催化分解结合起来，凸显了该工作的新颖性和优越性能。化学清洗后，膜表现出优异的通量恢复和可重复使用性（P-CM 为 96.0±0.5%）。研究结果强调了纳米材料形态对水处理和环境修复中膜性能的影响。