TiO₂ nanoparticles were prepared via an electrochemical method using pulse alternating current and applied in the photocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF). Its physicochemical properties were characterized by SEM, HRTEM, XRD, and BET methods. The effect of scavenger and UVA light intensity was studied. The results revealed that electrochemically synthesized TiO₂ nanoparticles exhibit higher DFF selectivity in the presence of methanol (up to 33%) compared with commercial samples.

中文翻译：

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电化学合成的TiO2纳米粒子对水中5-HMF的选择性光催化氧化

通过电化学方法使用脉冲交流电制备TiO ₂纳米颗粒，并将其应用于5-羟甲基糠醛（HMF）光催化氧化为2,5-二甲酰呋喃（DFF）。通过SEM，HRTEM，XRD和BET方法表征了其理化性质。研究了清除剂和UVA光强度的影响。结果表明，与市售样品相比，电化学合成的TiO ₂纳米颗粒在甲醇存在下具有更高的DFF选择性（高达33％）。