Fabrication of N-CQDs@W18O49 heterojunction with enhanced charge separation and photocatalytic performance under full-spectrum light irradiation

作者: Yang Qu , Binsong Wang , Chensha Li , Zhengjia Hao , Ju Huang

DOI: 10.1016/J.CCLET.2021.03.018

关键词:

摘要: Abstract Increasing the charge separation and utilization efficiency of sunlight are essential factors in a photocatalytic process. In this study, we prepared crystalline N-CQDs@W18O49 heterostructures, through situ growth W18O49 nanocrystals on nitrogen-doped carbon quantum dots (N-CQDs). nanocomposites showed high activity photodegradation ciprofloxacin (CIP) methyl orange (MO). The optimized N-CQDs@W18O49-5 sample was four times higher than that under ultraviolet-visible (UV–vis) light irradiation. two near-infrared (NIR) enhanced photosensitivity attributed to promotion by N-CQDs local surface plasmon resonance (LSPR) effect NIR This work provides promising approach for designing manufacturing photocatalysts with full-spectral responsiveness improved separation.

参考文章(32)
Ze-Xing Cai, Hua-Yao Li, Xiao-Nian Yang, Xin Guo, NO sensing by single crystalline WO3 nanowires Sensors and Actuators B-chemical. ,vol. 219, pp. 346- 353 ,(2015) , 10.1016/J.SNB.2015.05.036
M. Saleem, M.F. Al-Kuhaili, S.M.A. Durrani, A.H.Y. Hendi, I.A. Bakhtiari, S. Ali, Influence of hydrogen annealing on the optoelectronic properties of WO3 thin films International Journal of Hydrogen Energy. ,vol. 40, pp. 12343- 12351 ,(2015) , 10.1016/J.IJHYDENE.2015.06.078
Trilok Singh, Ralf Müller, Jai Singh, Sanjay Mathur, Tailoring surface states in WO3 photoanodes for efficient photoelectrochemical water splitting Applied Surface Science. ,vol. 347, pp. 448- 453 ,(2015) , 10.1016/J.APSUSC.2015.04.126
Daniel P. DePuccio, Pablo Botella, Bruce O’Rourke, Christopher C. Landry, Degradation of Methylene Blue Using Porous WO3, SiO2–WO3, and Their Au-Loaded Analogs: Adsorption and Photocatalytic Studies ACS Applied Materials & Interfaces. ,vol. 7, pp. 1987- 1996 ,(2015) , 10.1021/AM507806A
J. Pfeifer, E. Badaljan, P. Tekula-Buxbaum, T. Kova´cs, O. Geszti, A.L. To´th, H.-J. Lunk, Growth and morphology of W18O49 crystals produced by microwave decomposition of ammonium paratungstate Journal of Crystal Growth. ,vol. 169, pp. 727- 733 ,(1996) , 10.1016/S0022-0248(96)00669-0
Jia Liu, Yajuan Wei, Peizhou Li, Yanli Zhao, Ruqiang Zou, Selective H2S/CO2 Separation by Metal–Organic Frameworks Based on Chemical-Physical Adsorption Journal of Physical Chemistry C. ,vol. 121, pp. 13249- 13255 ,(2017) , 10.1021/ACS.JPCC.7B04465
Jiajia Wang, Lin Tang, Guangming Zeng, Yaocheng Deng, Haoran Dong, Yani Liu, Longlu Wang, Bo Peng, Chen Zhang, Fei Chen, 0D/2D interface engineering of carbon quantum dots modified Bi2WO6 ultrathin nanosheets with enhanced photoactivity for full spectrum light utilization and mechanism insight Applied Catalysis B-environmental. ,vol. 222, pp. 115- 123 ,(2018) , 10.1016/J.APCATB.2017.10.014
Na Lu, Zhenyi Zhang, Yue Wang, Benkang Liu, Lijiao Guo, Li Wang, Jindou Huang, Kuichao Liu, Bin Dong, Direct evidence of IR-driven hot electron transfer in metal-free plasmonic W18O49/Carbon heterostructures for enhanced catalytic H2 production Applied Catalysis B-environmental. ,vol. 233, pp. 19- 25 ,(2018) , 10.1016/J.APCATB.2018.03.073
Yaocheng Deng, Lin Tang, Chengyang Feng, Guangming Zeng, Zhaoming Chen, Jiajia Wang, Haopeng Feng, Bo Peng, Yani Liu, Yaoyu Zhou, Insight into the dual-channel charge-charrier transfer path for nonmetal plasmonic tungsten oxide based composites with boosted photocatalytic activity under full-spectrum light Applied Catalysis B-environmental. ,vol. 235, pp. 225- 237 ,(2018) , 10.1016/J.APCATB.2018.04.075
Jinhong Zhang, Jincheng Liu, Wei Zhao, Zhongxiang Ding, Jijin Mai, Yanxiong Fang, Facile synthesis of high quality Z-scheme W18O49 nanowire-g-C3N4 photocatalyst for the enhanced visible light-driven photocatalytic hydrogen evolution Journal of Alloys and Compounds. ,vol. 764, pp. 1- 9 ,(2018) , 10.1016/J.JALLCOM.2018.06.045