p-Nitrophenol (p-NP) is one of toxic nitrophenol pollutants, whose detection method is of importance. A new europium metal-organic framework (Eu-MOF) was prepared with 5-(4H-1,2,4-triazol-4-yl)isophthalic acid (H2TIPA) and 2-aminoterephthalic acid (H2NBDC)....