Under solvothermal conditions,Cu（CF₃COO）₂·xH₂O was used as a soluble copper salt, and thiophene?2,5?dicarboxylic acid （H₂tdc） as a linear ligand, which reacted with 1,10?phenanthroline （phen） and 2,2′?bipyridine （bipy） respectively,to synthesize two one?dimensional chain compounds:[Cu（tdc）（phen）] _n （1） and [Cu（tdc）（bipy）] _n ·DMF （2）.The structures of the synthesized compounds were characterized by single?crystal X?ray diffraction（SC?XRD）.The compositions of the compounds were analyzed by polycrystalline X?ray diffraction and Fourier infrared spectroscopy.The performances of the compounds were studied through photocurrent response tests and solution stability tests.The results show that the asymmetric structural unit of compound 1 is extremely similar to that of compound 2,with both containing the same [Cu(tdc)] structural unit. Both compounds exhibit photochemical stability,but they show different photocurrent response values,which is attributed to the different surface?modifying ligands (phen and bipy) in the two compounds.

A single?mode focused microwave synthesis system was used to rapidly synthesize MIL?53(Fe).The effect of reaction additive hexadecyl trimethyl ammonium bromide(CTAB) on the crystal structure, morphology, and particle size of MIL?53(Fe), as well as the microwave synthesis conditions on catalytic performance of MIL?53(Fe) were investigated using 10 mg/L Rhodamine B as a target contaminant. The results show that the addition of CTAB reduces the size of MIL?53(Fe) and makes the shape more regular. When the microwave power is 75 W,the temperature is 100 ℃,the synthesis time is 1 h,n(FeCl₃·6H₂O)/n (CTAB)=1∶0.5,the catalyst dosage is 0.2 g/L,the degradation rate of Rhodamine B can be more than 90% in 100 minutes under the radiation of 300 W tungsten lamp. It was known from free radical capture experiments that holes and ·OH were the main active species in the photocatalytic process.