Development of high responsive photocatalysts for the degradation of dye from water is a significance method to solve the difficulties of water contamination. In the present project, Cr₂O₃ nanoparticles were decorated onto cellulose through a facile synthesis method, which was exposed to characterization by XRD, FESEM, DLS, PL, and UV–vis spectroscopy. The structural attributes confirmed the presence of rhombohedral phase of Cr₂O₃ nanoparticles. The mean crystal size of Cr₂O₃, and Cr₂O₃/cellulose nanocomposites were 38.50 nm, and 50.11 nm, respectively. The band gap values (Eg) of Cr₂O₃, and Cr₂O₃/cellulose nanocomposites were was found 3.00, and 2.53 eV, respectively. Moreover, the morphological and optical studies have been showed the impressive photocatalytic properties of the prepared Cr₂O₃/cellulose nanocomposites. The photocatalytic efficiency of Cr₂O₃, and Cr₂O₃/cellulose nanocomposites has been investigated for the photo-degradation of crystal violet in the ultraviolet light region. The Cr₂O₃/cellulose indicated promising photocatalytic performance and up to 99.65% of the crystal violet was photo-degraded in 40 min. The obtained crystal violet degradation results were fitted onto a Langmuir-Hinshelwood (L-H) plot. The antioxidant performances of Cr₂O₃, and Cr₂O₃/cellulose were analyzed. The beneficial antibacterial performance of the Cr₂O₃/cellulose nanocomposites was tested by various bacteria as Escherichia coli, Pseudomonas aeruginosa, staphylococcus aurous, and Streptococcus pyogenes.

开发用于从水中降解染料的高响应性光催化剂是解决水污染难题的重要方法。在本项目中，通过简便的合成方法将Cr ₂ O ₃纳米粒子装饰在纤维素上，然后通过XRD，FESEM，DLS，PL和UV-vis光谱对其进行表征。结构属性证实了Cr ₂ O ₃纳米颗粒的菱面体相的存在。Cr ₂ O ₃和Cr ₂ O ₃ /纤维素纳米复合材料的平均晶体尺寸分别为38.50 nm和50.11 nm。Cr ₂ O ₃的带隙值（Eg），发现Cr ₂ O ₃ /纤维素纳米复合物分别为3.00和2.53eV。此外，形态和光学研究表明，所制备的Cr ₂ O ₃ /纤维素纳米复合材料具有令人印象深刻的光催化性能。已经研究了Cr ₂ O ₃和Cr ₂ O ₃ /纤维素纳米复合材料对紫外光区域中的结晶紫光降解的光催化效率。铬₂ O ₃纤维素显示出令人鼓舞的光催化性能，并且在40分钟内光降解了高达99.65％的结晶紫。将获得的结晶紫降解结果拟合到Langmuir-Hinshelwood（LH）图上。分析了Cr ₂ O ₃和Cr ₂ O ₃ /纤维素的抗氧化性能。Cr ₂ O ₃ /纤维素纳米复合材料的有益抗菌性能已通过多种细菌进行了测试，例如大肠杆菌，铜绿假单胞菌，金黄色葡萄球菌和化脓性链球菌。