A 8-fold interpenetrated metal-organic framework: Luminescent property and photocatalytic dye degradation performance

The self-assembly of Zn(NO 3 ) 2 ·6H 2 O, benzene-p-dicarboxylic acid (H 2 BDC) and tris(4-(4H-1,2,4-triazol-4-yl)phenyl)amine (L) affords a new Zn(II)-based metal-organic framework (MOF) with the formula of {[Zn 3 (L)(BDC) 3 (H 2 O) 3 ]·3.5H 2 O} n ( 1 ). The structural determination results reveal that complex 1 demonstrates a 8-fold interpenetrated three-dimensional network with a 3-connected srs net. The photoluminescent study shows that the interligand-based charge-transfer contributes to the strong emission of 1  ​at room temperature . Furthermore, complex 1 could be applied as an efficient photocatalyst for the elimination of Rhodamine B (RhB), methyl orange (MO) and methylene blue (MB) with the degradation efficiency all above 90% within 70 ​min under UV light irradiation . In connection to this, the detailed degradation mechanism has been probed both experimentally and computationally.