Abstract：
The ecologically friendly properties, low-cost, and readily available titanium dioxide (TiO2) materials have made them a subject of considerable interest for numerous promising applications. Anatase TiO2 nanoparticles were synthesized in the current study through the utilization of a hibiscus leaf extract and the advent of TiO2-doped g-C3N4(TiCN) nanocomposites (varying 0.5 mM, 1.0 mM, 1.5 mM, and 2.0 mM) by thermal polymerization. Here, the proposed study utilized multiple analytical techniques, including UV-Vis spectroscopy, a diffraction pattern (XRD), SEM coupled with EDX analysis, TGA, and EPR, to characterize the as-prepared TiO2 nanoparticles and TiCN nanocomposites. BET analysis the adsorption-desorption isotherms of the TiCN(1.5 mM) nanocomposite, the surface area of the prepared nanocomposite is 112.287 m2/g, and the pore size is 7.056 nm. The XPS spectra support the development of the TiCN(1.5 mM) nanocomposite by demonstrating the presence of C and N elements in the nanocomposite in addition to TiO2. HRTEM images where the formation of stacked that indicates a planar, wrinkled graphitic-like structure is clearly visible. The TiCN (1.5 mM) specimen exhibited enhanced morphology, enhanced surface area, greater capacity to take in visible light, and lowered band gap when compared to g-C3N4 following z-scheme heterojunction. The sample denoted as TiCN (1.5 mM) exhibited superior performance in terms of adsorption and photocatalytic activity using rhodamine B and Bisphenol A. Furthermore, the TiCN (1.5 mM) composite exhibited satisfactory stability over four cyclic runs, indicating its potential application in minimizing the impact of organic wastewater contaminants when compared to g-C3N4.
摘要：
生态友好的属性，低成本,和容易获得的二氧化钛(TiO2)材料已经使它们成为许多有前途的应用的相当感兴趣的主题。锐钛矿型TiO2纳米颗粒是通过利用芙蓉叶提取物和掺杂TiO2的g-C3N4（TiCN）纳米复合材料（不同的0.5mM，1.0mM,1.5mM,和2.0mM）通过热聚合。这里,拟议的研究利用了多种分析技术，包括紫外可见光谱，衍射图(XRD)，SEM与EDX分析相结合，TGA,和EPR,对制备的TiO2纳米粒子和TiCN纳米复合材料进行表征。BET分析TiCN（1.5mM）纳米复合材料的吸附-解吸等温线，制备的纳米复合材料的表面积为112.287m2/g，孔径为7.056nm。XPS光谱通过证明除TiO2外，纳米复合材料中还存在C和N元素来支持TiCN（1.5mM）纳米复合材料的发展。HRTEM图像中堆叠的形成表示平面，皱纹的石墨状结构清晰可见。TiCN（1.5mM）样品表现出增强的形态，增加表面积，更大的吸收可见光的能力，与z方案异质结后的g-C3N4相比，带隙降低。用TiCN（1.5mM）表示的样品在使用罗丹明B和双酚A的吸附和光催化活性方面表现出优异的性能。TiCN(1.5mM)复合材料在四个循环运行中表现出令人满意的稳定性，表明与g-C3N4相比，其在最大程度地减少有机废水污染物影响方面的潜在应用。
