Two new metal‐organic frameworks constructed by 4,5‐bis(pyrazol‐1‐yl) phthalic acid for photocatalytic properties

Abstract

Two new metal‐organic frameworks (MOFs), namely {[Zn2(L)2(4,4′‐bipy)1.5] ⋅ H2O}n (1) and {[Ni(L)(4,4′‐bipy)(H2O)2] ⋅ (H2O)5}n (2), where H2L=4,5‐bis(pyrazol‐1‐yl) phthalic acid, have been solvothermally synthesized and characterized. The single‐crystal X‐ray analyses showed that 1 and 2 present a 3D ths network and a cds network, respectively. The photocatalytic properties for both frameworks showed that they can photodegrade dye methylene blue (MB) and methylene orange (MO) under UV light irradiation. The possible photocatalytic mechanism has been addressed using band gap calculation by taking assistance of density of states (DOS) and partial DOS (pDOS) calculations.