TY - JOUR
T1 - Improving photocatalytic reduction of 4-nitrophenol over ZrO2-TiO2 by synergistic interaction between methanol and sulfite ions
AU - Guerrero-Araque, Diana
AU - Acevedo-Peña, Próspero
AU - Ramírez-Ortega, David
AU - Gómez, Ricardo
N1 - Publisher Copyright:
© 2017 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
PY - 2017
Y1 - 2017
N2 - The effect of two sacrificial agents (methanol and sodium sulfite) on the photocatalytic reduction of 4-nitrophenol employing a ZrO2-TiO2 photocatalyst is reported. The experimental results showed a decrease in the generation of OH radicals and diminution in the charge transfer resistance that favor the electron transfer toward 4-nitrophenolate ions. Based on the results, it is possible to establish that methanol acts as a hole scavenger while sulfite ions act as radical scavengers, improving the reduction from 4-nitrophenol to 4-aminophenol. The synergistic effect has been corroborated by photoluminescence and photoelectrochemical measurements.
AB - The effect of two sacrificial agents (methanol and sodium sulfite) on the photocatalytic reduction of 4-nitrophenol employing a ZrO2-TiO2 photocatalyst is reported. The experimental results showed a decrease in the generation of OH radicals and diminution in the charge transfer resistance that favor the electron transfer toward 4-nitrophenolate ions. Based on the results, it is possible to establish that methanol acts as a hole scavenger while sulfite ions act as radical scavengers, improving the reduction from 4-nitrophenol to 4-aminophenol. The synergistic effect has been corroborated by photoluminescence and photoelectrochemical measurements.
UR - http://www.scopus.com/inward/record.url?scp=85032579003&partnerID=8YFLogxK
U2 - 10.1039/c7nj02260c
DO - 10.1039/c7nj02260c
M3 - Artículo
SN - 1144-0546
VL - 41
SP - 12655
EP - 12663
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 21
ER -