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In order to study their synergistic catalytic effects in toluene degradation, CuMn 2 O 4 /HTS-1 (HTS-1 was a titanium silicon molecular sieve), Cu 0.7 Mn 2 Y 0.3 O x /HTS-1 and Cu 0.7 Mn 2 Ce 0.3 O x /HTS-1 catalysts were prepared by the impregnation method. The textural properties, redox properties and acidity of the catalysts were characterized by X-ray diffractometer (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), H 2 temperature-programmed reduction (H 2 -TPR), X-ray photoelectron spectroscopy (XPS), frustrated total internal reflection (FT-IR), ammonium temperature-programmed desorption (NH 3 -TPD) and pyridine adsorption internal reflection (Py-IR) measurements. The potential roles of Lewis acid sites (activating dioxygen) were discussed, and the experimental results indicated that the most efficient route for toluene degradation over Cu 0.7 Mn 2 Ce 0.3 O x /HTS-1 (toluene conversion rate of 90% (T 99 )=295°C) was ascribed to regulation of the synergistic effects of redox properties (activating molecular toluene) and Lewis acid sites (activating dioxygen). The Mars-Van-Krevelen (MVK) model was adopted to describe the reaction process of toluene oxidation, which gave an in-depth view into the toluene degradation over CuMn 2 O 4 /HTS-1, Cu 0.7 Mn 2 Y 0.3 O x /HTS-1 and Cu 0.7 Mn 2 Ce 0.3 O x /HTS-1. In addition, the synergistic effects between redox properties and Lewis acid sites were studied in detail., (Copyright © 2019. Published by Elsevier B.V.)