TY - JOUR
T1 - Zinc phthalocyanine sensitized g-C3N4 photocatalyst for exceptional photocatalytic hydrogen evolution and pollutant degradation
AU - Hasnain Bakhtiar, Syed Ul
AU - Zada, Amir
AU - Raziq, Fazal
AU - Ali, Sharafat
AU - Ali Shah, Muhammad Ishaq
AU - Ateeq, Muhammad
AU - Khan, Muhammad
AU - Alei, Dang
AU - Fazil, Perveen
AU - Naeem, Mohammad
AU - Khan, Waliullah
AU - Khan, Javed Ali
AU - Nazir, Ruqia
AU - Dong, Wen
AU - Fu, Qiuyun
N1 - Generated from Scopus record by KAUST IRTS on 2023-09-21
PY - 2023/5/19
Y1 - 2023/5/19
N2 - Here in this manuscript, the high charge conductivity and exceptionally wide range soalr light absorption of metal phthalocyanines were followed for boosted photocatalysis. Graphitic carbon nitride, g-C3N4 (CN) was thermally prepared from melamine and loaded with appropriate amount of zinc phthalocyanine (ZnPc) to form ZPCN nanocomposites. The fabricated samples were used to liberate hydrogen from water and decompose 2,4-dichlorphenol (2,4-DCP) pollutant under visible-light irradiation. The optimized nanocomposite (0.5ZPCN) purchased highly accelerated photocatalysis and liberated 90 μmol H2 in 1 h in the presence of methanol as sacrificial agent. The same nanocomposite also showed 85% decomposition efficiency for the degradation of 2,4-DCP pollutant. These enhanced catalytic activity of g-C3N4 functionalized with ZnPc are attributed to the exceptional visible light absorption and effective generation of super oxide ions and holes formed after charge transfer between g-C3N4 and ZnPc as confirmed from photoluminescence, fluorescent and electrochemical characterization of the nanophotocatalysts. The charge/radical trapping experiments confirmed that super oxide anions were the main oxidizing agents in the decomposition of 2,4-DCP.
AB - Here in this manuscript, the high charge conductivity and exceptionally wide range soalr light absorption of metal phthalocyanines were followed for boosted photocatalysis. Graphitic carbon nitride, g-C3N4 (CN) was thermally prepared from melamine and loaded with appropriate amount of zinc phthalocyanine (ZnPc) to form ZPCN nanocomposites. The fabricated samples were used to liberate hydrogen from water and decompose 2,4-dichlorphenol (2,4-DCP) pollutant under visible-light irradiation. The optimized nanocomposite (0.5ZPCN) purchased highly accelerated photocatalysis and liberated 90 μmol H2 in 1 h in the presence of methanol as sacrificial agent. The same nanocomposite also showed 85% decomposition efficiency for the degradation of 2,4-DCP pollutant. These enhanced catalytic activity of g-C3N4 functionalized with ZnPc are attributed to the exceptional visible light absorption and effective generation of super oxide ions and holes formed after charge transfer between g-C3N4 and ZnPc as confirmed from photoluminescence, fluorescent and electrochemical characterization of the nanophotocatalysts. The charge/radical trapping experiments confirmed that super oxide anions were the main oxidizing agents in the decomposition of 2,4-DCP.
UR - https://linkinghub.elsevier.com/retrieve/pii/S0360319923002914
UR - http://www.scopus.com/inward/record.url?scp=85147202977&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2023.01.152
DO - 10.1016/j.ijhydene.2023.01.152
M3 - Article
SN - 0360-3199
VL - 48
SP - 16320
EP - 16329
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 43
ER -