Degradation of phenol catalyzed by H3PMo9W3O40@EB-COF
The Keggin-type H3PMo9W3O40 was successfully loaded into the nanoporous channels of EB-COF by ion exchange strategy,resulting in the preparation of H3PMo9W3O40@EB-COF.The structure and composition of H3PMo9W3O40@EB-COF were characterized by FT-IR,TGA,XPS,SEM,EDX,and N2 adsorption-desorption techniques,confirming the uniform distribution of H3PMo9W3O40 within the EB-COF pores.The catalytic performance of the composite as a heterogeneous catalyst for phenol degradation was subsequently investigated.The results demonstrated that,with H3PMo9W3O40@EB-COF as the catalyst and O2 as the oxidant,the degradation efficiency of phenol exceeded 95％.Moreover,the catalyst exhibited good stability and recyclability in phenol degradation experiment.The reaction mechanism,involving free radicals,was further verified by EPR test.
POMs@COFsheterogeneous catalysisdegradation of phenol
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