College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
Third Clinical Medical College, Henan University of Chinese Medicine, Zhengzhou 450008, China.
J Photochem Photobiol B. 2020 Apr;205:111842. doi: 10.1016/j.jphotobiol.2020.111842. Epub 2020 Feb 27.
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, CrO 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 CrO nanoparticles. The mean crystal size of CrO, and CrO/cellulose nanocomposites were 38.50 nm, and 50.11 nm, respectively. The band gap values (Eg) of CrO, and CrO/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 CrO/cellulose nanocomposites. The photocatalytic efficiency of CrO, and CrO/cellulose nanocomposites has been investigated for the photo-degradation of crystal violet in the ultraviolet light region. The CrO/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 CrO, and CrO/cellulose were analyzed. The beneficial antibacterial performance of the CrO/cellulose nanocomposites was tested by various bacteria as Escherichia coli, Pseudomonas aeruginosa, staphylococcus aurous, and Streptococcus pyogenes.
开发对水中染料具有高响应性的光催化剂是解决水污染困难的一种重要方法。在本项目中，通过简便的合成方法将 CrO 纳米颗粒修饰到纤维素上，并用 XRD、FESEM、DLS、PL 和 UV-vis 光谱对其进行了表征。结构属性证实了 CrO 纳米颗粒存在菱面体相。CrO 和 CrO/纤维素纳米复合材料的平均晶粒尺寸分别为 38.50nm 和 50.11nm。CrO 和 CrO/纤维素纳米复合材料的能带隙值（Eg）分别为 3.00eV 和 2.53eV。此外，形态和光学研究表明，所制备的 CrO/纤维素纳米复合材料具有令人印象深刻的光催化性能。研究了 CrO 和 CrO/纤维素纳米复合材料在紫外光区对结晶紫的光降解性能。CrO/纤维素表现出有前途的光催化性能，在 40 分钟内可将结晶紫降解 99.65%。获得的结晶紫降解结果拟合到 Langmuir-Hinshelwood（L-H）图上。分析了 CrO 和 CrO/纤维素的抗氧化性能。通过大肠杆菌、铜绿假单胞菌、金黄色葡萄球菌和化脓性链球菌等各种细菌测试了 CrO/纤维素纳米复合材料的有益抗菌性能。
