Open AccessSolar photocatalytic hydrogen energy production using PbS-ZnS heterojunction/electrospun fiber composites
Author(s) -
Chen Haifei,
Yang Jie,
Chen Haiqun,
Lu Lijun
Publication year - 2019
Publication title -
energy exploration and exploitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 30
eISSN - 2048-4054
pISSN - 0144-5987
DOI - 10.1177/0144598718802426
Subject(s) - electrospinning , materials science , photocatalysis , x ray photoelectron spectroscopy , scanning electron microscope , heterojunction , nanofiber , hydrogen production , composite number , fiber , composite material , chemical engineering , thermogravimetric analysis , hydrogen , catalysis , optoelectronics , chemistry , polymer , organic chemistry , engineering
The micro-nano-sized electrospun fibers with carboxyl groups were prepared by a high-voltage electrospinning technology. The PbS-ZnS heterojunction/electrospun fiber composites were firstly synthesized by low-temperature hydrothermal method which directly loaded PbS-ZnS heterojunctions on the surface of the electrospun fibers. The composites were characterized by scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy, thermo gravimetric analysis, and UV-Vis reflectance spectra. The results showed that PbS-ZnS heterojunctions were evenly distributed on the electrospun fibers. The unique structure afforded PbS-ZnS/electrospun fiber desirable photocatalytic activity and stability for the hydrogen production under solar ultraviolet light irradiation. The average hydrogen production capacity was 10.45 mL every 2 h.
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