Abdelfattah I, El-Shamy A M
Water Pollution Research Department, National Research Centre, El-Bohouth St. 33, Dokki, P.O. 12622, Giza, Egypt.
Physical Chemistry Department, Electrochemistry and Corrosion Lab, National Research Centre, El-Bohouth St. 33, Dokki, P.O. 12622, Giza, Egypt.
Sci Rep. 2024 Nov 8;14(1):27175. doi: 10.1038/s41598-024-77752-5.
Despite the widespread use of titanium dioxide (TiO) in photocatalytic applications, its inherent limitations, such as low efficiency under visible light and rapid recombination of electron-hole pairs, hinder its effectiveness in environmental remediation. This study presents a comparative investigation of TiO-based composites, including TiO/ZrO, ZnO, TaO, SnO, FeO, and CuO, aiming to assess their potential for enhancing photocatalytic applications. Photocatalysis holds promise in environmental remediation, water purification, and energy conversion, with TiO being a prominent photocatalyst. To improve efficiency and broaden applicability, various metal oxide composites have been explored. Composites were synthesized and characterized using techniques such as XRD, SEM, TEM, and zeta potential analysis to evaluate their structural and morphological properties. Photocatalytic performance was assessed by degrading herbicide Imazapyr under UV illumination. Results revealed that, the photo-activity of all prepared composites were more effective than the photo-activity of commercial hombikat UV-100. The photonic-efficiency is arranged according to the order TiO/CuO > TiO/SnO > TiO/ZnO > TiO/TaO > TiO/ZrO > TiO/FeO > Hombikat TiO-UV100. All composites exhibited superior performance, attributed to enhanced light absorption and charge separation. The study underscores the potential of these composites for environmental remediation and energy conservation, offering valuable insights for the development of advanced photocatalysts.
尽管二氧化钛（TiO₂）在光催化应用中被广泛使用，但其固有的局限性，如可见光下效率低和电子 - 空穴对快速复合，阻碍了其在环境修复中的有效性。本研究对TiO₂基复合材料进行了比较研究，包括TiO₂/ZrO₂、ZnO、Ta₂O₅、SnO₂、Fe₂O₃和CuO，旨在评估它们在增强光催化应用方面的潜力。光催化在环境修复、水净化和能量转换方面具有前景，TiO₂是一种突出的光催化剂。为了提高效率和拓宽适用性，人们探索了各种金属氧化物复合材料。通过XRD、SEM、TEM和zeta电位分析等技术对复合材料进行了合成和表征，以评估其结构和形态特性。通过在紫外光照射下降解除草剂咪唑乙烟酸来评估光催化性能。结果表明，所有制备的复合材料的光活性均比商业光催化剂hombikat UV - 100的光活性更有效。光子效率按TiO₂/CuO＞TiO₂/SnO₂＞TiO₂/ZnO＞TiO₂/Ta₂O₅＞TiO₂/ZrO₂＞TiO₂/Fe₂O₃＞Hombikat TiO - UV100的顺序排列。所有复合材料均表现出优异的性能，这归因于光吸收和电荷分离的增强。该研究强调了这些复合材料在环境修复和节能方面的潜力，为先进光催化剂的开发提供了有价值的见解。
