Microwave-assisted synthesis of CNB/MIL for photocatalytic degradation of rhodamine B in water
Objective To construct a visible light responsive heterojunction photocatalyst material for efficient degradation of organic dyes in water.Methods Carbon nitride bulk(CNB)and metal-organic framework(MIL-100(Fe))heterojunction(CNB/MIL)were synthesized by microwave assisted method.Results The characterization analysis confirmed that CNB/MIL was successfully synthesized.Under visible light,the degradation rate of 15 mg CNB/MIL to rhodamine B(RhB)with a volume of 50 mL and a concentration of 10 mg·L-1 is close to 100％within 90 minutes.The study of degradation mechanism shows that·OH is the main active species in the photocatalytic process.Conclusions Carbon nitride combined with MIL can play a synergistic role in improving the visible light response of the material.In addition,using micro wave assisted synthesis can greatly shorten the synthesis time and save energy.
carbon nitridemetal-organic framework materialphotocatalytic degradationrhodamine B
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