TY - JOUR
T1 - S-scheme heterojunction g-C3N4/TiO2 with enhanced photocatalytic activity for degradation of a binary mixture of cationic dyes using solar parabolic trough reactor
AU - Barzegar, Mohammad Hossein
AU - Sabzehmeidani, Mohammad Mehdi
AU - Ghaedi, Mehrorang
AU - Avargani, Vahid Madadi
AU - Moradi, Zohreh
AU - Roy, Vellaisamy A.L.
AU - Heidari, Hadi
N1 - Publisher Copyright:
© 2021
PY - 2021/10
Y1 - 2021/10
N2 - Developing photocatalytic systems by larger design to achieve degradation of dye pollutants by using solar light is highly desirable. Present work is devoted to the synthesis of step-scheme (S-scheme) g-C3N4/TiO2 heterojunction which subsequently employed for simultaneous degradation of a binary mixture of Methylene blue (MB) and Rhodamine B (RhB) solution in parabolic trough collectors (PTC) as continuous flow loop photoreactor. The as-prepared g-C3N4/TiO2 was analyzed by various techniques such as FE-SEM, EDS, XRD, FT-IR, BET, elements mapping and DRS. The composite central design (CCD) was applied to express mathematical relationships among variables such as process time, catalyst mass and initial concentrations of MB and RhB in the degradation process. The photocatalytic activity of the as-prepared composite is higher than pure TiO2 and g-C3N4 that is attributed to the positive synergetic effect of S-scheme between g-C3N4 and TiO2 nanostructure. Under solar irradiation in PTC, g-C3N4/TiO2 was able to degrade about 94.92 and 93.07% of binary mixture MB and RhB, respectively.
AB - Developing photocatalytic systems by larger design to achieve degradation of dye pollutants by using solar light is highly desirable. Present work is devoted to the synthesis of step-scheme (S-scheme) g-C3N4/TiO2 heterojunction which subsequently employed for simultaneous degradation of a binary mixture of Methylene blue (MB) and Rhodamine B (RhB) solution in parabolic trough collectors (PTC) as continuous flow loop photoreactor. The as-prepared g-C3N4/TiO2 was analyzed by various techniques such as FE-SEM, EDS, XRD, FT-IR, BET, elements mapping and DRS. The composite central design (CCD) was applied to express mathematical relationships among variables such as process time, catalyst mass and initial concentrations of MB and RhB in the degradation process. The photocatalytic activity of the as-prepared composite is higher than pure TiO2 and g-C3N4 that is attributed to the positive synergetic effect of S-scheme between g-C3N4 and TiO2 nanostructure. Under solar irradiation in PTC, g-C3N4/TiO2 was able to degrade about 94.92 and 93.07% of binary mixture MB and RhB, respectively.
KW - Continuous flow loop photoreactor
KW - Mixture dyes
KW - Simultaneous degradation
KW - Solar parabolic trough
KW - g-CN/TiO
UR - https://www.scopus.com/pages/publications/85113399963
U2 - 10.1016/j.cherd.2021.08.015
DO - 10.1016/j.cherd.2021.08.015
M3 - Article
AN - SCOPUS:85113399963
SN - 0263-8762
VL - 174
SP - 307
EP - 318
JO - Chemical Engineering Research and Design
JF - Chemical Engineering Research and Design
ER -