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Semi-artificial photosynthetic system (SAPS) integrates the strengths of natural and artificial photosynthesis for solar energy conversion. Synthetic materials and biological components both play indispensable roles, where the former can be...

MnO x /Al 2 O 3 -carbon nanotubes (CNTs) composites prepared by hydrothermal method were characterized by XRD, SEM, TEM, TGA, BET, XPS and H 2 -TPR. Catalytic oxidation of chlorobenzene (CB) was conducted over the composites under gas hourly space velocity (GHSV) of 36000 h -1 and CB concentration of 2800 ppmv. For the catalyst with approximately 25 wt% CNTs and 10 at.% Mn, CB removal efficiencies reached up to 83.3 and 97.7% at 150 and 300°C, respectively. Moreover, no Cl species was detected over the used MnO x / Al 2 O 3 -CNTs catalyst implying that the release of chlorine element from the catalyst surface was facilitated by CNTs introduction.