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S–N co-doped anatase nanosized TiO2 photocatalyst was successfully prepared by simple sol–gel method. The samples were characterized by XRD, XPS, UV–Vis. From the results of UV–Vis, a red shift of the absorption edge was brought out owing to the S and N codoping. XPS and UV–Vis studies revealed that N and S were in situ codoped in the lattice of TiO2 and the absorbance in visible light region decreased...
A plausible reaction pathway for maleic anhydride (MA) hydrogenation is firstly proposed, which suggests that the CH4 is produced by the methanation of CO formed during the reaction rather than direct de-carbonization of tetrahydrofuran, and MA cannot be directly decyclized, subsequently de-carbonized to C3 compounds and CO. This work sheds light on the superficial phenomenon for MA liquid hydrogenation...
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