用于高效光催化降解亚甲基蓝染料的CS-TiO纳米粒子的绿色合成

Green Synthesis of CS-TiO NPs for Efficient Photocatalytic Degradation of Methylene Blue Dye.

作者信息

BinSabt Mohammad, Sagar Varsha, Singh Jagpreet, Rawat Mohit, Shaban Mohamed

机构信息

Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.

Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India.

出版信息

Polymers (Basel). 2022 Jun 30;14(13):2677. doi: 10.3390/polym14132677.

The development of a non-malignant and sustainable treatment approach for eradicating mephitic organic dyes from freshwater resources is a daunting task. In a similar vein, the current work investigates the mitigation of methylene blue (MB) dye utilizing titanium dioxide nanoparticles (CS-TiO NPs) synthesized using (bhang) leaf extract via a greener approach. The CS-TiO NPs are well characterized through XRD, FE-SEM, HR-TEM, UV-Vis spectroscopy, FTIR spectroscopy, and EDS spectroscopy. Microscopic studies confirm that the average particle size distribution of the individual particles was found to be in the range of 12.5 ± 1.5 nm, whereas the average size of the CS-TiO NPs aggregates is 24.5 ± 11.5 nm. Additionally, the synthesized CS-TiO NPs manifested remarkable photocatalytic degradation potential against methylene blue dye with a degradation efficiency of 98.2% and an apparent rate constant of 0.0398 min. As a result, this research offers a green/sustainable alternative for water purification.

开发一种用于从淡水资源中根除恶臭有机染料的非恶性且可持续的处理方法是一项艰巨的任务。同样，当前的工作研究了利用通过更环保的方法使用（印度大麻）叶提取物合成的二氧化钛纳米颗粒（CS-TiO NPs）来减轻亚甲基蓝（MB）染料的污染。通过XRD、FE-SEM、HR-TEM、紫外-可见光谱、FTIR光谱和EDS光谱对CS-TiO NPs进行了充分表征。微观研究证实，单个颗粒的平均粒径分布在12.5±1.5纳米范围内，而CS-TiO NPs聚集体的平均尺寸为24.5±11.5纳米。此外，合成的CS-TiO NPs对亚甲基蓝染料表现出显著的光催化降解潜力，降解效率为98.2%，表观速率常数为0.0398分钟。因此，本研究为水净化提供了一种绿色/可持续的替代方案。