Nano‐SH‐MOF@Self‐Assembling Hollow Spherical g‐C3N4 Heterojunction for Visible‐Light Photocatalytic Nitrogen Fixation

Abstract

AbstractMetal‐organic frameworks (MOFs)@g‐C3N4 heterojunctions are widely investigated as one of the most potential photocatalysts for N2 fixation owing to the visible absorption and effective photocatalytic properties. It is still a huge challenge to synthesize hollow spherical C3N4 coated with Nano‐MOF layers towards efficient visible photocatalytic activity on N2 fixation. In this work, the paramagnetic hollow spherical C3N4 (H‐C3N4) are coated with free radical MOF with sulfhydryl ligand (Nano‐SH‐MOF)[Zn2(DSBDC)] by self‐assemble method. The C8 M2 samples (the mass ratio of H‐C3N4 to Nano‐SH‐MOF is 8 : 2) exhibited an improved photocatalytic activity, which is almost 5.4 times higher than the pure H‐C3N4. The improved photocatalytic activity is also discussed in this work. It can be imagined that this work may be helpful for the hollow spherical C3N4 based heterojunction and MOF‐based heterojunction photocatalysts with effective photocatalytic nitrogen fixation.