Journal of Inorganic and Organometallic Polymers and Materials ( IF 3.9 ) Pub Date : 2021-09-12 , DOI: 10.1007/s10904-021-02102-1 Rahmat Hidayat 1 , Sayekti Wahyuningsih 1, 2 , Ari Handono Ramelan 2 , Ganjar Fadillah 3
|
TiO2-modified reduced graphene oxide (TiO2-rGO) has been prepared in a simple one-process step synthesis via the hydrothermal method. The TiO2-rGO was studied to improve the photodegradation performance of rhodamine-B (RhB) as synthetic organic dye pollutants. The influence of rGO on TiO2 nanoparticles was investigated using Fourier Transform Infrared, X-ray diffraction, Scanning Electron Microscope, Surface Area Analyzer, Thermogravimetric Analysis/Differential Thermal Analysis, and Spectroscopy UV–Vis. A batch system tested the photodegradation performance of RhB solution under 300 W visible light irradiation. Our results confirmed that the presence of rGO in TiO2 nanostructures could improve the specific surface area until 248.58 m2 g−1 and enhanced the photodegradation efficiency until 70.66% under visible light irradiation. The photocatalyst stability was evaluated for five cycles experiment, and the performances decreased to 6.58%. However, these results presented that the developed TiO2-rGO material has a potential for further photodegradation of organic dye in environment.
Graphic Abstract
中文翻译：
作为合成有机染料污染物的 RhB 在 TiO2 修饰的还原氧化石墨烯上的高可见光光降解
TiO 2改性的还原氧化石墨烯（TiO 2 -rGO）已通过水热法以简单的一步法合成制备。研究了TiO 2 -rGO 以提高作为合成有机染料污染物的罗丹明-B (RhB) 的光降解性能。使用傅里叶变换红外、X 射线衍射、扫描电子显微镜、表面积分析仪、热重分析/差热分析和紫外-可见光谱法研究了 rGO 对 TiO 2纳米颗粒的影响。批量系统测试了 RhB 溶液在 300 W 可见光照射下的光降解性能。我们的结果证实了 rGO 在 TiO 2中的存在纳米结构可以将比表面积提高到 248.58 m 2 g -1并在可见光照射下将光降解效率提高到 70.66%。对光催化剂稳定性进行了五次循环实验，性能下降到6.58%。然而，这些结果表明，开发的 TiO 2 -rGO 材料具有进一步光降解环境中有机染料的潜力。
京公网安备 11010802027423号