This study aims to reduce the band gap by doping wide band‐gap TiO2 with CoFe2O4 and PANI to improve the photocatalytic efficiency and examine the decolorization kinetic of Rhodamine B (RhB). The characteristics of the nanocomposites were thoroughly assessed through the utilization of SEM‐EDS, TEM, XRD, FTIR, VSM, UV‐Vis, PL, and XPS analyses. The SEM and TEM analyses revealed that CoFe2O4/TiO2/PANI has a homogeneously porous structure. XRD analysis results were found to show good agreement with the standard diffraction data cards. The band structures obtained by FTIR analyses were compatible with literature studies. The band gap energies determined by UV‐Vis analyses were determined as 2.86 eV for CoFe2O4/TiO2/PANI. The decrease of CoFe2O4/TiO2/PANI recombination rate was proven with PL results. The different initial dye concentrations, temperature, and light intensity parameters were used to determine the decolorization kinetics of RhB over CoFe2O4/TiO2/PANI. The photodegradation rates of RhB in reactions catalyzed by PANI, CoFe2O4, commercial‐TiO2, CoFe2O4/TiO2, and CoFe2O4/TiO2/PANI were determined as 7.6 %, 20.7 %, 26.6 %, 32.4 %, and 48.8 %, respectively. According to data obtained from the decolorization of RhB on CoFe2O4/TiO2/PANI nanocomposite, the appropriate kinetic model was determined Network kinetic. The adsorption equilibrium constant (KB) and activation energy (Ea) were calculated as 0.007 and 7.9 kJ/mol, respectively.

中文翻译：

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CoFe2O4/TiO2/PANI纳米复合光催化剂的合成及其对罗丹明B的脱色效率考察

本研究旨在通过掺杂宽带隙 TiO 来减小带隙2与钴铁2氧4和 PANI 来提高光催化效率并检查罗丹明 B (RhB) 的脱色动力学。通过使用 SEM-EDS、TEM、XRD、FTIR、VSM、UV-Vis、PL 和 XPS 分析，对纳米复合材料的特性进行了彻底评估。 SEM 和 TEM 分析表明 CoFe2氧4/二氧化钛2/PANI 具有均匀的多孔结构。 XRD 分析结果与标准衍射数据卡显示出良好的一致性。 FTIR 分析获得的能带结构与文献研究一致。通过 UV-Vis 分析确定 CoFe 的带隙能量为 2.86 eV2氧4/二氧化钛2/帕尼。 CoFe的减少2氧4/二氧化钛2/PANI 重组率已通过 PL 结果得到证明。使用不同的初始染料浓度、温度和光强度参数来确定 RhB 相对于 CoFe 的脱色动力学2氧4/二氧化钛2/帕尼。 PANI、CoFe 催化反应中 RhB 的光降解率2氧4, 商业-TiO2, 钴铁矿2氧4/二氧化钛2、和钴铁矿2氧4/二氧化钛2/PANI 分别确定为 7.6%、20.7%、26.6%、32.4% 和 48.8%。根据 CoFe 上 RhB 脱色得到的数据2氧4/二氧化钛2/PANI纳米复合材料，确定了适当的动力学模型网络动力学。吸附平衡常数（K乙）和活化能（EA）分别计算为 0.007 和 7.9 kJ/mol。