NH2-MIL-125(Ti)Synthesized with Malic Acid Additive and Its Photocatalytic Performance
NH2-MIL-125(Ti)samples were synthesized with malic acid as an additive,which were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),Fourier transform infrared spectroscopy(FT-IR),ultraviolet visible spectrophotometry(UV-vis)and photoluminescence spectroscopy(PL).The photocatalytic performance of the samples was evaluated by photocatalytic degradation reaction of Rhodamine B(RhB).The results showed that a small amount of malic acid addition made the NH2-MIL-125(Ti)crystals thinner and smaller,while a large amount of malic acid addition made the NH2-MIL-125(Ti)crystals larger,possesses more mesopores,improved electron hole separation efficiency and interfacial charged transport efficiency,which promoted the photodegradation performance of the samples.As a result,the photocatalytic activity was improved and the removal of RhB reached 83% in 120 min.
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