TY - JOUR
T1 - Naphthalimide-porphyrin hybridized graphitic carbon nitride for enhanced photocatalytic hydrogen production
AU - Li, Lingling
AU - Bodedla, Govardhana Babu
AU - Liu, Zhitian
AU - Zhu, Xunjin
N1 - Funding Information:
This work was supported by the Hong Kong Research Grants Council ( HKBU 22304115-ECS ), Areas of Excellence Scheme ([ AoE/P-03/08 ]), Hong Kong Baptist University ( FRG2-16-17-024 , FRG2-17-18-068 , RC-ICRS/15-16/02E , RC-ICRS/1617/02C-CHE , and RC-IRMS/16/17/02CHEM ).
PY - 2020/1/1
Y1 - 2020/1/1
N2 - A series of NP/g-C3N4 hybrids of graphitic carbon nitride (g-C3N4) with naphthalimide-porphyrin (NP) are developed for photocatalytic hydrogen production. Planar naphthalimide-porphyrins are facilely adsorbed onto flexible two-dimensional g-C3N4 through π–π stacking. Except for its function as photosensitizer, NP in the hybrid could efficient inhibit the charge recombination by electron transfer from the lowest unoccupied molecular orbital (LUMO) of NP to conduction band of g-C3N4, meanwhile facilitate Förster energy transfer from g-C3N4 donor to NP acceptor for the efficient overlap of absorption spectrum of NP and emission of g-C3N4. As a result, the hybrid 2%NP/g-C3N4 containing 2% weight ratio of NP exhibits an impressive photocatalytic hydrogen production rate (HPR) of 2297 μmol g−1 h−1, while pristine g-C3N4 shows a HPR of 698 μmol g−1 h−1. Specifically, the performance of 2%NP/g-C3N4 is far superior compared with the hybrids of g-C3N4 with Zn(II)-tetrakis(4-carboxylphenyl)porphyrin (ZnTCPP) and Zn(II)-tetrakis(4-phenyl)porphyrin (ZnTPP) in photocatalytic hydrogen production under the same conditions.
AB - A series of NP/g-C3N4 hybrids of graphitic carbon nitride (g-C3N4) with naphthalimide-porphyrin (NP) are developed for photocatalytic hydrogen production. Planar naphthalimide-porphyrins are facilely adsorbed onto flexible two-dimensional g-C3N4 through π–π stacking. Except for its function as photosensitizer, NP in the hybrid could efficient inhibit the charge recombination by electron transfer from the lowest unoccupied molecular orbital (LUMO) of NP to conduction band of g-C3N4, meanwhile facilitate Förster energy transfer from g-C3N4 donor to NP acceptor for the efficient overlap of absorption spectrum of NP and emission of g-C3N4. As a result, the hybrid 2%NP/g-C3N4 containing 2% weight ratio of NP exhibits an impressive photocatalytic hydrogen production rate (HPR) of 2297 μmol g−1 h−1, while pristine g-C3N4 shows a HPR of 698 μmol g−1 h−1. Specifically, the performance of 2%NP/g-C3N4 is far superior compared with the hybrids of g-C3N4 with Zn(II)-tetrakis(4-carboxylphenyl)porphyrin (ZnTCPP) and Zn(II)-tetrakis(4-phenyl)porphyrin (ZnTPP) in photocatalytic hydrogen production under the same conditions.
KW - Energy transfer
KW - Graphitic carbon nitride
KW - Naphthalimide
KW - Photocatalytic hydrogen production
KW - Porphyrin
UR - http://www.scopus.com/inward/record.url?scp=85072209808&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2019.143755
DO - 10.1016/j.apsusc.2019.143755
M3 - Journal article
AN - SCOPUS:85072209808
SN - 0169-4332
VL - 499
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 143755
ER -