Au-Pd nanoparticles immobilized on TiO2 nanosheet as an active and durable catalyst for solvent-free selective oxidation of benzyl alcohol

TiO2 nanocrystals with controlled facets have been extensively investigated due to their excellent photocatalytic performance in sustainable and green energy field. However, the applications thermal catalysis without applying UV irradiation are comparably less identification of intrinsic roles, especially different catalytic behaviors each crystal facet, remains not fully recognized. In this study, bimetallic AuPd nanoparticles supported on anatase nanosheets exposing {0 0 1} or nanospindles {1 as a catalyst were prepared by sol-immobilization method used for solvent-free benzyl alcohol oxidation. The experimental results indicated that exposed facet support has significant effect performance. AuPd/TiO2-001 exhibited higher conversion than AuPd/TiO2-101. Meanwhile, all AuPd/TiO2 catalysts characterized XRD, ICP-AES, XPS, BET, TEM, HRTEM. revealed number oxygen vacancies TiO2-sheets surface could be responsible observed enhancement present study displays it is plausible enhance oxidation tailoring support.