Journal
NANO
Volume 15, Issue 10, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1793292020501271
Keywords
MoS3; Melamine; MoS2/g-C3N4 composite; one-pot calcination; sensitized hydrogen production
Funding
- Program for Science and Technology of Henan Province [162102210160]
- National Key Basic Research Program of China [2009CB220005]
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MoS2/g-C3N4 (g-C3N4 = graphitic carbon nitride) composite is considered as a promising photocatalyst for hydrogen production, while the preparation method still needs to be improved. Herein for the first time, nanosized MoS3 and melamine were used as starting materials and a facile one-pot calcination method was successfully applied for the synthesis of MoS2/g-C3N4. The physical and photophysical properties of the as-prepared MoS2/g-C3N4 were characterized by XRD, IR, SEM, TEM and XPS techniques. Sensitized by Erythrosin B (EB), the photocatalytic hydrogen production performance of MoS2/g-C3N4 was investigated and the amount of MoS2 was optimized. An excellent H-2 production activity of 1091.2 mu mol h(-1) was achieved for 43% MoS2/g-C3N4, which is about 330 times that of pure g-C3N4 (3.3 mu mol h(-1)). In addition, its performance was compared with those of three other MoS2/g-C3N4 samples prepared by conventional methods and a possible mechanism of H-2 production was proposed based on the photoluminescence and photoelectrochemical results.
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