Novel g-C₃N₄/CoO Nanocomposites with Significantly Enhanced Visible-Light Photocatalytic Activity for H₂ Evolution

Abstract

Novel g-CN/CoO nanocomposite application for photocatalytic H evolution were designed and fabricated for the first time in this work. The structure and morphology of g-CN/CoO were investigated by a wide range of characterization methods. The obtained g-CN/CoO composites exhibited more-efficient utilization of solar energy than pure g-CN did, resulting in higher photocatalytic activity for H evolution. The optimum photoactivity in H evolution under visible-light irradiation for g-CN/CoO composites with a CoO mass content of 0.5 wt % (651.3 μmol h g) was up to 3 times as high as that of pure g-CN (220.16 μmol h g). The remarkably increased photocatalytic performance of g-CN/CoO composites was mainly attributed to the synergistic effect of the junction or interface formed between g-CN and CoO.

ZIF‐67‐Derived 3D Hollow Mesoporous Crystalline Co3O4 Wrapped by 2D g‐C3N4 Nanosheets for Photocatalytic Removal of Nitric Oxide

“…The N 2 adsorption and desorption isotherms of as‐prepared CN, CO, and CN‐CO‐100 samples are of type IV with specific surface areas of 110.15, 28.46, and 131.99 m 2 g −1 , respectively ( Figure a) . The composite CN‐CO‐100 has a markedly high BET surface area.…”

Rational Design and Fabrication of Noble‐metal‐free NixP Cocatalyst Embedded 3D N‐TiO2/g‐C3N4 Heterojunctions with Enhanced Photocatalytic Hydrogen Evolution

“…), metallic oxide (Ni x O, Co x O, Fe x O etc. ), metal phosphide (Ni x P, Co x P, MoP, Fe x P, etc. ) to replace the noble metals.…”

Tailoring TiO2 Nanotube‐Interlaced Graphite Carbon Nitride Nanosheets for Improving Visible‐Light‐Driven Photocatalytic Performance

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