Abstract The hybrid Cu–TiO2/polythiophene nanorods (HNRs) were prepared by modified sol–gel technique at low temperature through oxidative polymerization of thiophene. The prepared HNRs and Cu–TiO2 nanorods without polymer (CTNRs) were characterized by using XRD, TEM, IR, UV–vis DRS and XPS. IR, XPS and XRD confirm polythiophene (PTh) covered Cu–TiO2 nanorod in hybrid with rutile phase without affecting the crystal form of TiO2. TEM analysis reveals the shape and morphology of CTNRs and HNRs. TEM images of HNRs show that the metal oxide has nanorods like shape with lengths and diameters of about 35–60 and 15–25 nm respectively. From UV–visible DRS spectra, HNRs exhibit a broad and strong absorption in visible range, indicating that the incorporation of PTh onto the surface of Cu–TiO2 nanorod in hybrid can extend the photo response range of TiO2. The photocatalytic activity of HNRs shows higher degradation when compared with CTNRs under visible light irradiation by degradation of Rhodamine B (RhB) and Orange G (OG). There is no degradation of PTh was observed under visible light irradiation till five runs which is examined from photocatalytic activity, which indicates stability and reusability of photocatalyst.

中文翻译：

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杂化铜掺杂二氧化钛/聚噻吩纳米棒作为有效的可见光驱动光催化剂降解有机污染物

摘要 通过噻吩的氧化聚合，采用改良的溶胶-凝胶技术在低温下制备了杂化Cu-TiO2/聚噻吩纳米棒（HNRs）。制备的 HNRs 和不含聚合物的 Cu-TiO2 纳米棒（CTNRs）通过 XRD、TEM、IR、UV-vis DRS 和 XPS 进行表征。IR、XPS 和 XRD 证实聚噻吩 (PTh) 覆盖的 Cu-TiO2 纳米棒与金红石相混合，而不影响 TiO2 的晶型。TEM 分析揭示了 CTNR 和 HNR 的形状和形态。HNR 的 TEM 图像显示金属氧化物具有纳米棒状形状，长度和直径分别约为 35-60 和 15-25 nm。从紫外可见 DRS 光谱来看，HNRs 在可见光范围内表现出广泛而强烈的吸收，表明在混合中将 PTh 掺入到 Cu-TiO2 纳米棒的表面可以扩展 TiO2 的光响应范围。在可见光照射下，通过降解罗丹明 B (RhB) 和橙 G (OG)，HNRs 的光催化活性显示出比 CTNRs 更高的降解。从光催化活性检测到五次运行，在可见光照射下没有观察到 PTh 的降解，这表明光催化剂的稳定性和可重复使用性。