氮化碳结构调控及其光解水制氢研究

吴 佳琦, 陈 鹭
宁德师范学院 福建宁德 352000

摘要

以双氰胺和巴比妥酸为原料高温聚合制备有机小分子共轭的氮化碳（BCN），利用各种表征手段对其进行表征，结果表明有机小分子共轭的氮化碳（BCN）能够加快光生电子和空穴的快速分离，使催化活性等到显著提高。实验结果表明：BCN 的光解水产氢活性是 2.35 mmol·g-1·h-1，是纯的氮化碳（0.196 mmol·g-1·h-1）12 倍。BCN 光催化剂经过 12 小时的循环展现出优异的光催化循环稳定性。

参考

[1]L. Chen, G. Yan, X. Liu, S. Ying, Y. Xia, S. Ning, X. Wang, Phosphorus doped and defect modified graphitic carbon nitride for boosting photocatalytic hydrogen production, Phys Chem Chem Phys, 25 (2022) 117-123.[2]L. Chen, Y. Wang, S. Cheng, X. Zhao, J. Zhang, Z. Ao, C. Zhao, B. Li, S. Wang, S. Wang, H. Sun, Nitrogen defects/boron dopants engineered tubular carbon nitride for efficient tetracycline hydrochloride photodegradation and hydrogen evolution, Applied Catalysis B: Environmental, 303 (2022) 119050-119059.[3]L. Chen, S. Ning, R. Liang, Y. Xia, R. Huang, G. Yan, X. Wang, Potassium doped and nitrogen defect modified graphitic carbon nitride for boosted photocatalytic hydrogen production, International Journal of Hydrogen Energy, 47 (2022) 14044-14052.[4]Z. Chen, K. Xia, X. She, Z. Mo, S. Zhao, J. Yi, Y. Xu, H. Chen, H. Xu, H. Li, 1D metallic MoO2-C as co-catalyst on 2D g-C3N4semiconductor to promote photocatlaytic hydrogen production, Applied Surface Science, 447 (2018) 732-739.[5]Y. Deng, Z. Zhou, H. Zeng, R. Tang, L. Li, J. Wang, C. Feng, D. Gong, L. Tang, Y. Huang, Phosphorus and kalium co-doped g-C3N4 with multiple-locus synergies to degrade atrazine: Insights into the depth analysis of the generation and role of singlet oxygen, Applied Catalysis B: Environmental, 320 (2023) 121942-121958.[6]S. Gao, X. Wang, C. Song, S. Zhou, F. Yang, Y. Kong, Engineering carbon-defects on ultrathin g-C3N4 allows one-pot output and dramatically boosts photoredox catalytic activity, Applied Catalysis B: Environmental, 295 (2021) 120272-120285.