TY - JOUR
T1 - Self-Assembled Naphthalimide-Substituted Porphyrin Nanowires for Photocatalytic Hydrogen Evolution
AU - Bodedla, Govardhana Babu
AU - Huang, Jun
AU - Wong, Wai Yeung
AU - Zhu, Xunjin
N1 - Funding Information:
This work was supported by the Australia Research Council (ARC) (Grant DP180104010), Hong Kong Baptist University (Grants FRG2-17-18-068, RC-ICRS/15-16/02E, RC-ICRS/1617/02C-CHE, RC-ICRS-18-19-01A, and RC-IRMS/16/17/02CHEM). W.-Y.W. thanks the financial support from the Hong Kong Research Grants Council (Grants C4006-17G and PolyU 123384/16P), the Hong Kong Polytechnic University (Grant1-ZE1C), and Ms. Clarea Au for the Endowed Professorship in Energy (Grant 847S). We are also thankful to Mr. Joshua LAI from Hong Kong Baptist Univesirty for helping in the morphological and pXRD studies of the porphyrins.
Publisher copyright:
© 2020 American Chemical Society
PY - 2020/7/24
Y1 - 2020/7/24
N2 - A linear 5,15-di(naphthalimide) substituted porphyrin ZnD(p-NI)PP is facilely self-assembled into nanowires in solid with well-defined morphology through the synergistic πstack interactions of both porphyrin and naphthalimide skeletons. The self-assembled porphyrin nanowires feature broadened light absorption, efficient separation and transfer of photogenerated charges, and enhanced photostability. As a consequence, the ZnD(p-NI)PP produced 108 times higher H2 production rate (H2 = 5.40 mmol g-1 h-1) than the control 5,15-diphenylporphyrin (ZnDPP) (H2 = 0.05 mmol g-1 h-1) and 3.6-fold higher than the ZnT(p-NI)PP (H2 = 1.50 mmol g-1h-1) which bears four NI units and self-assembled into nanospheres in the solid. Additionally, the photocatalytic system of ZnD(p-NI)PP produced hydrogen evolution up to 50 h, while the hydrogen evolution of the ZnDPP photocatalytic system reached a plateau after 20 h.
AB - A linear 5,15-di(naphthalimide) substituted porphyrin ZnD(p-NI)PP is facilely self-assembled into nanowires in solid with well-defined morphology through the synergistic πstack interactions of both porphyrin and naphthalimide skeletons. The self-assembled porphyrin nanowires feature broadened light absorption, efficient separation and transfer of photogenerated charges, and enhanced photostability. As a consequence, the ZnD(p-NI)PP produced 108 times higher H2 production rate (H2 = 5.40 mmol g-1 h-1) than the control 5,15-diphenylporphyrin (ZnDPP) (H2 = 0.05 mmol g-1 h-1) and 3.6-fold higher than the ZnT(p-NI)PP (H2 = 1.50 mmol g-1h-1) which bears four NI units and self-assembled into nanospheres in the solid. Additionally, the photocatalytic system of ZnD(p-NI)PP produced hydrogen evolution up to 50 h, while the hydrogen evolution of the ZnDPP photocatalytic system reached a plateau after 20 h.
KW - heterogeneous catalysis
KW - naphthalimide-conjugation
KW - photocatalytic hydrogen evolution
KW - Porphyrins
KW - self-assembly
UR - http://www.scopus.com/inward/record.url?scp=85091058844&partnerID=8YFLogxK
U2 - 10.1021/acsanm.0c01353
DO - 10.1021/acsanm.0c01353
M3 - Journal article
AN - SCOPUS:85091058844
SN - 2574-0970
VL - 3
SP - 7040
EP - 7046
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 7
ER -
