Hydrogen production and photocatalytic activity of g-C3N4/Co-MOF (ZIF-67) nanocomposite under visible light irradiation |
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| Authors: | KC Devarayapalli SV Prabhakar Vattikuti TVM Sreekanth Ki Soo Yoo PC Nagajyothi Jaesool Shim |
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| Institution: | School of Mechanical Engineering, Yeungnam University, Gyeongsan, 384541 Republic of Korea |
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| Abstract: | Herein, cobalt (Co)-based metal–organic zeolitic imidazole frameworks (ZIF-67) coupled with g-C3N4 nanosheets synthesized via a simple microwave irradiation method. SEM, TEM and HR-TEM results showed that ZIF-67 were uniformly dispersed on g-C3N4 surfaces and had a rhombic dodecahedron shape. The photocatalytic properties of g-C3N4/ZIF-67 nanocomposite were evaluated by photocatalytic dye degradation of crystal violet (CV), 4-chlorophenol (4-CP) and photocatalytic hydrogen (H2) production. In presence of visible light illumination, the photocatalytic dye results showed that 95% CV degradation and 53% 4-CP degradation within 80 min. The H2 production of the g-C3N4/ZIF-67 composite was 2084 μmol g?1, which is 3.84 folds greater than that of bare g-C3N4 (541 μmol g?1). |
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| Keywords: | 4-Chlorophenol crystal violet g-C3N4 hydrogen production ZIF-67 |
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