Lanfredi, Silvana [UNESP]Silveira, Gisete S. [UNESP]Potensa, Bruno S. [UNESP]Nobre, Marcos A. L. [UNESP]2018-11-262018-11-262016-01-01Mrs Advances. New York: Cambridge Univ Press, v. 1, n. 19, p. 1327-1332, 2016.2059-8521http://hdl.handle.net/11449/159862Both synthesis and photocatalytic potential of an innovative catalyst-powder type composite material based on the Zn or/and ZnO dispersed in a matrix of amorphous-carbon have been investigated. Zn/ZnO/amorphous-carbon nanostructured-matrix composite was prepared by partial pyrolysis method based on the Pechini method. The amorphous character of composite was characterized X-ray diffraction, while chemical bond investigated by infrared spectroscopy. The photocatalytic activity directed to the degradation of the phenol red dye of small fraction of commercial ZnO, Zn/C and Zn/ZnO/C composites were evaluated as a function of the degradation reaction of the phenol red dye, in the alkaline medium pH = 9. A mass concentration of 1: 10,000 was selected being considered 30 and 150 min of reaction A comparison between photocatalytic activity showed that the degradation rate of phenol red dye is more efficient at both ZnO/Zn/C and Zn/C amorphous composites when compared to the pristine ZnO. The efficiency obeys the following order C/Zn >= C/ZnO/Zn > commercial ZnO with conversion equal to 70% for C/Zn and C/ZnO/Zn, while for the ZnO is around 55%. The kinetic of degradation is discussed.1327-1332engArtigo10.1557/adv.2015.40WOS:000412530500002Acesso aberto