TY - JOUR
T1 - Construction of a novel Ag/Ag3PO4/MIL-68(In)-NH2 plasmonic heterojunction photocatalyst for high-efficiency photocatalysis
AU - Mu, Feihu
AU - Dai, Benlin
AU - Zhao, Wei
AU - Zhou, Shijian
AU - Huang, Haibao
AU - Yang, Gang
AU - Xia, Dehua
AU - Kong, Yan
AU - Leung, Dennis Y.C.
N1 - Publisher Copyright:
© 2021
PY - 2022/2/28
Y1 - 2022/2/28
N2 - To boost the visible light catalytic performance of typical metal-organic frameworks (MOFs) materials (MIL-68(In)-NH2), a novel stable Z-scheme Ag/Ag3PO4/MIL-68(In)-NH2 plasmonic photocatalyst was constructed by electrostatic attraction, co-precipitation reaction, and in-situ photoreduction reaction methods for the first time. The photocatalytic activities of the photocatalysts are systematically explored by the photocatalytic degradation of bisphenol A (BPA) and reduction of Cr(VI) under visible light. Ag/Ag3PO4/MIL-68(In)-NH2 displays the best photocatalytic performance among the as-prepared photocatalysts. The rate constant of BPA degradation on Ag/Ag3PO4/MIL-68(In)-NH2 is 0.09655 min−1, which is better than many reported photocatalytic materials. It also achieved a maximum rate constant of 0.02074 min−1 for Cr(VI) reduction. The boosted photocatalytic performance is due to the improved absorption caused by localized surface plasmon resonance (LSPR), effective interface charge transfer and separation, and more reactive sites provided by the large specific surface area. Besides, the photocatalytic degradation pathway of BPA is concluded according to GC-MS analysis. Finally, a more reasonable Z-scheme mechanism is speculated and verified through a series of characterizations and simulations, such as time-resolved photoluminescence spectroscopy (TRPL), electron spin resonance (ESR), and finite difference time domain (FDTD) method.
AB - To boost the visible light catalytic performance of typical metal-organic frameworks (MOFs) materials (MIL-68(In)-NH2), a novel stable Z-scheme Ag/Ag3PO4/MIL-68(In)-NH2 plasmonic photocatalyst was constructed by electrostatic attraction, co-precipitation reaction, and in-situ photoreduction reaction methods for the first time. The photocatalytic activities of the photocatalysts are systematically explored by the photocatalytic degradation of bisphenol A (BPA) and reduction of Cr(VI) under visible light. Ag/Ag3PO4/MIL-68(In)-NH2 displays the best photocatalytic performance among the as-prepared photocatalysts. The rate constant of BPA degradation on Ag/Ag3PO4/MIL-68(In)-NH2 is 0.09655 min−1, which is better than many reported photocatalytic materials. It also achieved a maximum rate constant of 0.02074 min−1 for Cr(VI) reduction. The boosted photocatalytic performance is due to the improved absorption caused by localized surface plasmon resonance (LSPR), effective interface charge transfer and separation, and more reactive sites provided by the large specific surface area. Besides, the photocatalytic degradation pathway of BPA is concluded according to GC-MS analysis. Finally, a more reasonable Z-scheme mechanism is speculated and verified through a series of characterizations and simulations, such as time-resolved photoluminescence spectroscopy (TRPL), electron spin resonance (ESR), and finite difference time domain (FDTD) method.
KW - AgPO
KW - Localized surface plasmon resonance
KW - MOFs
KW - Photocatalysis
KW - Z-scheme
UR - http://www.scopus.com/inward/record.url?scp=85114636934&partnerID=8YFLogxK
U2 - 10.1016/j.jmst.2021.05.059
DO - 10.1016/j.jmst.2021.05.059
M3 - 文章
AN - SCOPUS:85114636934
SN - 1005-0302
VL - 101
SP - 37
EP - 48
JO - Journal of Materials Science and Technology
JF - Journal of Materials Science and Technology
ER -