Title of article :
Photo Degradation of methylene blue in aqueous solution by a new Cu(II)-MOF based on diaminodiphenyl sulfone ligand through response surface methodology (RSM)
Author/Authors :
Moseni nik, Zahra Department of chemistry - Arak branch - Islamic Azad University , Jamehbozorgi, Saeed Department of chemistry - Hamedan branch - Islamic Azad University , Ramezani, Majid Department of chemistry - Arak branch - Islamic Azad University , Momeni Esfahani, Tahere Department of chemistry - Arak branch - Islamic Azad University
Pages :
11
From page :
141
To page :
151
Abstract :
A novel metal–organic framework (MOF), with the formula [Cu(II)L]n (L= 4, 4′-diamino diphenyl sulfone), has been synthesized conventionally and hydrothermally methods and characterized by FT-IR, PXRD, EDX, and SEM techniques. The results MOFs were applied for photodegradation of Methylene Blue (MB). The influence of affecting variables, such as initial MB dye concentration (2–8mg L−1), Cu(II)-MOF mass (0.01–0.03 mg), pH (3.0–9.0), and time of irradiation (30–90 min). The photocatalytic degradation efficiency was investigated by the central composite design (CCD) methodology. The results of CCD analysis for optimum values of variables revealed that Cu(II)-MOF mass was 0.025g, the initial concentration of MB was 3.51 mg L−1, pH was 4.50 and irradiation time was 75 min.Under the optimum conditions, the photocatalytic MB degradation percentage at the desirability function value of 1.0 was found to be 70%. In addition, the obtained R2 value of 0.97 in the regression analysis showed a high photocatalytic efficiency of the proposed method for MB degradation.
Keywords :
Cu(II) , MOF Response surface methodology (RSM) Degradation pathway Photocatalyst Methylene Blue
Journal title :
Journal of Nanoanalysis
Serial Year :
2020
Record number :
2532740
Link To Document :
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