Advanced Powder Technology, Vol.29, No.6, 1331-1338, 2018
Preparation of CuxO/C composite derived from Cu-MOFs as Fenton-like catalyst by two-step calcination strategy
CuxO/C composites were successfully prepared using Cu-MOFs as the template and precursor by a twostep calcination strategy. SEM and TEM observations indicated that the composites had a microstructural prototype of porous cubic frameworks with the attachment of graphitic nanosheets on the surfaces, where the co-existence of CuO and Cu2O nanoparticles were uniformly encapsulated. The Fenton-like activities of the CuxO/C composites were studied by the degradation of Rhodamine B. The sample calcinated firstly at 500 degrees C in N-2 followed at 300 degrees C in air achieved the optimal catalytic properties. Approximate 90% contaminant could be degraded within 40 min and the performances was maintained stable after five cycling runs. The superior Fenton-like activities of as-prepared CuxO/C composites were attributed to the high specific surface area, good adsorption and enhanced electron transport of well crystallized microstructures. (C) 2018 Published by Elsevier B.V. on behalf of The Society of Powder Technology Japan. All rights reserved.