In this research work, the coaxial electrospinning technique was used for the development of composite membranes based on poly(acrylonitrile-butadiene-styrene)/polyacrylonitrile (ABS/PAN) micrometer fibers loaded with ZnO nanoparticles (NpZnO) in order to evaluate their efficiency in the photoreduction of Cr VI ions in aqueous solutions. The morphological analysis of the fibers was carried out by means of scanning electron microscopy (SEM), the chemical composition of the materials was determined by Fourier transformed infrared spectroscopy (FTIR) with attenuated total reflectance (ATR), the crystallinity of the nanoparticles in the fibrous materials was analyzed by X-ray diffraction (XRD) and the residual Cr VI concentration was measured with the Nesslerizations method. It was demonstrated that by means of the electrospinning technique it is possible to manufacture coaxial fibers based on ABS/PAN with homogeneous morphology with mean diameters of 1.1 µm. Furthermore, through this technique it was possible to obtain ABS/PAN-NpZnO composite coaxial fibers with concentrations of 15, 25 and 30 wt.% of NpZnO, thus favoring the increase in the dose of the photocatalyst. The maximum efficiency of said membrane was obtained with 30 % wt.% of NpZnO with respect to the total solid, allowing the reduction of Cr VI to 81.59 % after 8 h with a substrate concentration of 50 mg/l. Therefore, ABS/PAN-NpZnO fibers are promising candidates for applications related to environmental remediation, such as water regeneration filters, thus partially contributing to the development of sustainable technologies.

在这项研究工作中，同轴静电纺丝技术用于开发基于聚（丙烯腈 - 丁二烯 - 苯乙烯）/聚丙烯腈（ABS / PAN）微米纤维的复合膜，该纤维载有 ZnO 纳米粒子（NpZnO），以评估它们在Cr VI 离子在水溶液中的光还原。纤维的形态分析通过扫描电子显微镜 (SEM) 进行，材料的化学成分通过具有衰减全反射 (ATR) 的傅里叶变换红外光谱 (FTIR) 确定，纳米颗粒在纤维中的结晶度通过 X 射线衍射 (XRD) 分析纤维材料，并使用 Nesslerizations 方法测量残留的 Cr VI 浓度。结果表明，通过静电纺丝技术，可以制造出平均直径为 1.1 µm 的均匀形态的基于 ABS/PAN 的同轴纤维。此外，通过该技术可以获得NpZnO浓度为15、25和30wt.%的ABS/PAN-NpZnO复合同轴纤维，从而有利于光催化剂剂量的增加。相对于总固体含量为 30% wt.% 的 NpZnO 获得所述膜的最大效率，允许在 8 小时后将 Cr VI 减少至 81.59%，底物浓度为 50 mg/ NpZnO 的百分比，从而有利于光催化剂剂量的增加。相对于总固体含量为 30% wt.% 的 NpZnO 获得所述膜的最大效率，允许在 8 小时后将 Cr VI 减少至 81.59%，底物浓度为 50 mg/ NpZnO 的百分比，从而有利于光催化剂剂量的增加。所述膜的最大效率是在相对于总固体为 30%wt.% 的 NpZnO 时获得的，允许在 8 小时后以 50 毫克 /升。因此，ABS/PAN-NpZnO 纤维是与环境修复相关的应用的有希望的候选者，例如水再生过滤器，从而部分地促进了可持续技术的发展。