Centre of Excellence for Energy and Environmental Studies, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India.
Department of Biomedical Engineering, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, 131039, India.
Chemosphere. 2023 Dec;345:140452. doi: 10.1016/j.chemosphere.2023.140452. Epub 2023 Oct 17.
Dealing harmful dye-containing effluent from the textile sector significantly contributes to water contamination. The persistence of these dyes in wastewater complicates traditional treatment approaches, emphasizing the necessity for efficient photocatalytic materials for dye pollution degradation. Due to its unique features, VO/g-CN nanocomposites are discovered as promising photocatalysts in this area. The V0 nanoparticles act as electron acceptors, while g-CN acts as electron donors, thus encouraging charge separation and increasing photocatalytic activity. The VO/g-CN nanocomposites are characterized using XRD, FTIR spectroscopy, SEM, TEM, XPS, and UV-DRS. Cationic dyes, anionic dyes and mix dyes (1:1 mixture of cationic and anionic dyes) are used to test the photocatalytic activity of the nanocomposites. Photocatalytic activity shows that VO/g-CN nanocomposites are more active than their precursors. The V5G-2 nanocomposite degrades anionic (Rose Bengal (85.1%) and Xylenol Orange (77.6%), cationic (Auramine O (75% and Crystal Violet (79.5%), and mixed dyes (81%), after 120 min of irradiation. This study introduces a novel technique for synthesizing VO/g-CN nanocomposites using solvothermal and ultrasonic processes. The findings of this research provide significant knowledge for the development of photocatalysts with enhanced efficiency in the degradation of dye pollutants.
处理纺织行业含有害染料的废水会对水造成严重污染。这些染料在废水中的持久性增加了传统处理方法的难度，因此需要高效的光催化材料来降解染料污染。由于具有独特的特性，VO/g-CN 纳米复合材料被发现是该领域有前途的光催化剂。V0 纳米颗粒作为电子受体，而 g-CN 作为电子供体，从而促进了电荷分离并提高了光催化活性。通过 XRD、FTIR 光谱、SEM、TEM、XPS 和 UV-DRS 对 VO/g-CN 纳米复合材料进行了表征。使用阳离子染料、阴离子染料和混合染料（阳离子和阴离子染料的 1:1 混合物）测试了纳米复合材料的光催化活性。光催化活性表明，VO/g-CN 纳米复合材料比其前体更具活性。V5G-2 纳米复合材料在 120 分钟的照射下，对阴离子染料（孟加拉玫瑰红（85.1%）和二甲酚橙（77.6%）、阳离子染料（吖啶橙（75%）和结晶紫（79.5%）和混合染料（81%）具有较高的降解效率。本研究介绍了一种使用溶剂热和超声工艺合成 VO/g-CN 纳米复合材料的新方法。该研究结果为开发具有增强的染料污染物降解效率的高效光催化剂提供了重要的知识。
