@article{PAN2026, 
author = {XinYu PAN and Lu DONG and RanTing TAO and FangZheng REN and QingXiu JIA and ShiPeng WEN and Shui HU},
title = {Preparation and photothermal performance study of CuS@PDA/MoS2/polylactic acid nanofiber membranes},
year = {2026},
journal = {Journal of Beijing University of Chemical Technology (Natural Science Edition)},
volume = {53},
number = {2},
pages = {61-70},
keywords = {natural light-thermal conversion, nanofibers, copper sulfide, molybdenum disulfide, synergistic effect},
url = {https://www.sciopen.com/article/10.13543/j.bhxbzr.2026.02.007},
doi = {10.13543/j.bhxbzr.2026.02.007},
abstract = {CuS@PDA/MoS2 (PDA = polydopamine) composite photocatalytic nanoparticles with highly efficient synergistic natural light/heat conversion have been prepared by hydrothermal reaction. In the first step, CuS@PDA nanoparticles with a core-shell structure were obtained by in situ oxidative polymerization of dopamine on the surface of CuS nanoparticles. In the second step, MoS2 nanoparticles were generated in situ on the surface of the CuS@PDA nanoparticles by thermal reaction. The nanoparticles were characterized by SEM, TEM, XRD and XPS, which confirmed that CuS@PDA/MoS2 nanoparticles with a three-layer structure had been successfully synthesized. CuS@PDA/MoS2/PLA (PLA = polylactic acid) photocatalytic nanofiber functional membranes were fabricated by solution electrospinning, and their filtration and photocatalytic performance were investigated. It was found that the addition of CuS@PDA/MoS2 photocatalytic nanoparticles significantly improved the natural light and heat conversion of polylactic acid fibers. Under irradiation by 1 kW/m2 simulated natural light, the temperature rise of the polylactic acid fiber membrane after addition of 5% CuS@PDA/MoS2 photocatalytic nanoparticles was 9.2 ℃ higher than that of the pure polylactic acid fiber membrane, and the filtration efficiency of the fiber membrane retained 96% of its original capacity after four weeks of tracking tests. The efficiency retention rate of the polylactic acid fiber membrane after the addition of 5% filler was 99.29%, which was higher than that of the pure polylactic acid fiber membrane (98.12%).}
}