Superhydrophobic Microwave Absorption Cotton Fabrics Prepared on the Basis of Porous Flower-Like MoS 2 /Bagasse Carbon Composite Materials

作者：Yingxiu Zhang, Lihui Xu, Hong Pan, Meiran Dou, Yi Teng, Xueqiang Fu, Rui Zhang, Meng Wang, Qianqian Zhu, Qun Yang, Weijun Zhang, Zhongjian Wang · 发表于：NANO · 年份：2026 · DOI：10.1142/s1793292026501018 · 被引用次数：1 · 研究领域：Electromagnetic wave absorption materials、Natural Fiber Reinforced Composites、Advanced Antenna and Metasurface Technologies

Bagasse-based porous carbon (BPC) with low cost, light weight and sustainability was synthesized from natural waste bagasse through carbonization and activation processes. Porous flower-like MoS 2 /BPC was then successfully fabricated via in situ formation of flower-like MoS 2 within the porous structure of BPC by the hydrothermal method. The flower-like MoS 2 /BPC was combined with the low surface energy substance polydimethylsiloxane (PDMS) to functionalize cotton fabrics via a simple dip-coating method. The effects of MoS 2 /BPC concentration and PDMS concentration on the hydrophobicity of the treated cotton fabrics were systematically investigated. The results demonstrated that when the PDMS concentration is 3% and the flower-like MoS 2 /BPC concentration is 0.2%, the cotton fabrics exhibit excellent superhydrophobicity with a water contact angle of [Formula: see text]. Additionally, the minimum reflection loss (RL[Formula: see text] of the coated cotton fabric is −35.19[Formula: see text]dB at 10.3[Formula: see text]GHz in the frequency range of 8.2–12.4[Formula: see text]GHz with an effective microwave absorption bandwidth (EAB) of 3.318[Formula: see text]GHz. The results suggest that porous flower-like MoS 2 /BPC contributes surface roughness to the cotton fabric, while PDMS imparts low-surface energy with excellent bonding properties. The heterogeneous structure of MoS 2 /BPC composites coated onto the fabric can lead to optimized impedance matching, thereby achieving...