Neda Irannejad - Department of Chemistry, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran
Behzad Rezaei - Department of Chemistry, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran
Elahe Khorshidi - Department of Chemistry, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran
Marzieh Ebrahimi - Department of Materials Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran
Siavash Adhami - Department of Materials Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran
Ahmad Kermanpur - Department of Materials Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶–۸۳۱۱۱, Iran

To flow high photocatalytic activity under solar light irradiation, TiO2 nanoflowers (NF-TiO2) have been synthesized via a one-step hydrothermal method. According to the uniform coating layer, high specific internal surface area, and low transfer resistance, photocatalytic activity improved. What is most noticeable about the newly synthesized NF-TiO2 is the significant reduction in the bandgap energy that increased the ability to absorb light in the visible region. By using NF-TiO2 as a photoanode of the DSSC, achieves a total photoelectric conversion efficiency of 4.9%. Improvement in the performance of DSSC attributed to the effective absorption of sensitizer molecules in the presence of NF-TiO2, high light harvesting ability, reduction of grain boundaries and the bulk defects in TiO2, followed by the reduction of charge transfer resistance. In the new strategy, one part of the film uses as dye-sensitized zone (which acts as a DSSC(, and the other as a degradation zone. The results show a significant degradation about 99.0% at 160 minutes. To improve the degradation zone molecularly imprinted polymers coated with Co-doped g-C3N4/TiO2 nanocomposite is used. Due to the effective absorption of MV on the surface and the effective separation of the charge carriers, the faster degradation is achieved (80 min).

Nano-flower like TiO2, Dye sensitized solar cell, Self-propulsion system.