Photocatalytic reduction of CO₂ into fuels is a promising approach to address the energy crisis and global warming issues. In this work, g-C₃N₄-W₁₈O₄₉ nanocomposite material was constructed by a simple solvothermal method. The W₁₈O₄₉ nanorods have a good dispersion by coupling with the g-C₃N₄ sheet. Under simulated sunlight irradiation, the g-C₃N₄-W₁₈O₄₉ nanocomposite exhibited superior photocatalytic CO₂ reduction capability than that of g-C₃N₄ and W₁₈O₄₉. The photo/electrochemical measurements demonstrated that the g-C₃N₄-W₁₈O₄₉ heterojunction could accelerate the separation and migration of charge carries, thus improving the activity of photocatalytic reduction of CO₂ into CH₄ and CO.

将 CO ₂光催化还原为燃料是解决能源危机和全球变暖问题的一种很有前景的方法。在这项工作中，gC ₃ N ₄ -W ₁₈ O ₄₉纳米复合材料是通过简单的溶剂热方法构建的。W ₁₈ O ₄₉纳米棒通过与gC ₃ N ₄片耦合而具有良好的分散性。在模拟阳光照射下，gC ₃ N ₄ -W ₁₈ O ₄₉纳米复合材料表现出优于gC ₃ N 的光催化CO ₂还原能力₄和 W ₁₈ O ₄₉。光/电化学测量表明，gC ₃ N ₄ -W ₁₈ O ₄₉异质结可以加速电荷载体的分离和迁移，从而提高光催化将CO ₂还原为CH ₄和CO的活性。