TY - JOUR
T1 - Synthesis and characterization of Cu-doped polymeric carbon nitride
AU - Dante, Roberto C.
AU - Sánchez-Arévalo, Francisco M.
AU - Chamorro-Posada, Pedro
AU - Vázquez-Cabo, José
AU - Huerta, Lazaro
AU - Lartundo-Rojas, Luis
AU - Santoyo-Salazar, Jaime
AU - Solorza-Feria, Omar
AU - Diaz-Barrios, Antonio
AU - Zoltan, Tamara
AU - Vargas, Franklin
AU - Valenzuela, Tatiana
AU - Muñoz-Bisesti, Florinella
AU - Quiroz-Chávez, Francisco Javier
N1 - Publisher Copyright:
© 2016 Taylor & Francis Group, LLC.
PY - 2016/3/3
Y1 - 2016/3/3
N2 - Polymeric carbon nitride doped with copper through a solid-state reaction was characterized by several techniques, among them are UV-visible spectroscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, etc. The material is a semiconductor with a wide band gap of 2.74 eV. Sites of both Cu(I) and Cu(II) were detected, apparently only coordinated by the polymer. The material comprises crumpled nanosheets, and is substantially an amorphous layered material with a prevalent 2D structure with low inter-planar interactions, as shown by X-ray diffractometry and TeraHertz spectroscopy. Photo-oxidation of benzyl alcohol was used to probe the active sites of the material, comparing them with the non-doped material. The higher activity and selectivity toward salicylic alcohol of the non-doped material can be due to both a more localized electron transfer and a longer lifetime of the hole-electron pair. Cu-CN favored the oxidation of hydroxymethyl group. Therefore, the presence of copper can favor different reaction pathways with respect to the non-doped material.
AB - Polymeric carbon nitride doped with copper through a solid-state reaction was characterized by several techniques, among them are UV-visible spectroscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, etc. The material is a semiconductor with a wide band gap of 2.74 eV. Sites of both Cu(I) and Cu(II) were detected, apparently only coordinated by the polymer. The material comprises crumpled nanosheets, and is substantially an amorphous layered material with a prevalent 2D structure with low inter-planar interactions, as shown by X-ray diffractometry and TeraHertz spectroscopy. Photo-oxidation of benzyl alcohol was used to probe the active sites of the material, comparing them with the non-doped material. The higher activity and selectivity toward salicylic alcohol of the non-doped material can be due to both a more localized electron transfer and a longer lifetime of the hole-electron pair. Cu-CN favored the oxidation of hydroxymethyl group. Therefore, the presence of copper can favor different reaction pathways with respect to the non-doped material.
KW - THz spectroscopy
KW - carbon nitride
KW - nanosheets
KW - organic semiconductors
UR - http://www.scopus.com/inward/record.url?scp=84962693238&partnerID=8YFLogxK
U2 - 10.1080/1536383X.2015.1124864
DO - 10.1080/1536383X.2015.1124864
M3 - Artículo
SN - 1536-383X
VL - 24
SP - 171
EP - 180
JO - Fullerenes Nanotubes and Carbon Nanostructures
JF - Fullerenes Nanotubes and Carbon Nanostructures
IS - 3
ER -