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Adsorption and photodegradation towards dyes from water by Cu-organic framework(PDF)


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Adsorption and photodegradation towards dyes from water by Cu-organic framework
WANG Ya1 LI Qing1 GUAN Binbin1 FAN Zenglu2
1.School of Environmental & Chemical Engineering, Xi’an Polytechnic University, Xi’an 710048, China; 2.School of Textile Science qand Engineering, Ministry of Education, Xi’an Polytechnic University, Xi’an 710048, China
Cu-organic framework dyes physical adsorption photocatalytic degradation
TS 190.2
In order to achieve the remediation of water environment polluted by dyes-containing wastewater, Cu(NO3)2 and organic ligands(H2L)which modified by —NH2 and —OCF3were employed to synthesize porous Cu-organic framework(Cu-MOF)materials under solvothermal reaction for eliminating dye molecules from water by physical adsorption and photochemically degradation. The results show that Cu-MOF can not only efficiently adsorb MB, BR14 and BY24 from single dye containing solution, but also simultaneously adsorb MB+MO, MB+RhB, MB+RR24 in double dyes containing mixed solution, and can selectively capture MB from MB+RY2 mixed solution. For dye solutions containing MB, MB+MO and MB+RhB, the degradation efficiencies of Cu-MOF towards MB reached 99.2%, 98.45% and 98.32%, respectively, the corresponding degradation rate constants were determined as 3.3×10-2min-1, 9.03×10-2min-1 and 2.0×10-2min-1.The degradation efficiencies towards MO and RhB were 40.47% and 97.16%, respectively, and the degradation rate constant of RhB was 2.1×10-2min-1.


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Last Update: 2019-10-07