在常温条件下, 采用原位晶化法在铜网载体上合成了包含Keggin型杂多酸H3PMo12O40的Cu3(BTC)2(BTC= 1, 3, 5-均苯三甲酸)基金属-有机框架膜材料.利用XRD、FT-IR和SEM等方法对膜的结构、成分及形貌进行了表征.含磷钼杂多酸的Cu3(BTC)2基薄膜均匀地覆盖在铜丝表面上, 膜厚度约为8μm, 晶体尺寸均一, 且融合生长.合成过程中, 经过预处理的铜网本身既是载体又是铜源.研究发现加入H2O2能有效地促进膜的合成.铜网负载的薄膜作为非均相催化剂,在H2O2氧化降解罗丹明B的化学反应中表现出很高的催化活性,反应100 min后,降解率可达98%.膜催化剂重复使用三次, 均表现出较高的催化性能.
Cu3(BTC)2-based (BTC=1, 3, 5-benzenetricarboxylic acid) metal-organic framework film was synthe-sized on the surface of copper mesh throughin situ crystallization at room temperature. In this film, Keggin-type H3PMo12O40 was embedded in partial cavity of Cu3(BTC)2. The film was characterized by X-Ray powder diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR). The surface of cop-per fiber was evenly covered by the film. It can be estimated that the thickness of film is about 8μm. In the synthe-sis process, the role of copper is not only a support, but also a copper source. H2O2 played an important role in syn-thesis process of membrane, and adding proper H2O2 could accelerate reactive speed effectively. As a heterogeneous catalyst, the catalytic property of the sample was tested through rhodamine B degradation. The film exhibited good catalytic performance in the reaction of rhodamine B degradation. After reaction for 100 min, the degradation de-gree of rhodamine B reached 98%. The catalyst was reused for three times, and every time it exhibited good cata-lytic performances during the processes.
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