Plasmonic ternary hybrid photocatalyst based on polymeric g-C3N4 towards visible light hydrogen generation

被引：70
作者：
Che, Yuping [1 ,2 ]
Liu, Qingqing [1 ,2 ]
Lu, Bingxin [1 ,2 ]
Zhai, Jin [1 ,2 ]
Wang, Kefeng [3 ]
Liu, Zhaoyue [1 ,2 ]
机构：
[1] Beihang Univ, Key Lab Bioinspired Smart Interfacial Sci, Technol Minist Educ, Sch Chem, Beijing 100191, Peoples R China
[2] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Beijing Key Lab Bioinspired Energy Mat & Devices, Sch Chem, Beijing 100191, Peoples R China
[3] Shangqiu Normal Univ, Coll Chem & Chem Engn, Henan Engn Ctr New Energy Battery Mat, Shangqiu 476000, Henan, Peoples R China
来源：
SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期
关键词：
GRAPHITIC CARBON NITRIDE; AG-AT-AGCL; HIGHLY EFFICIENT; H-2; EVOLUTION; WATER; DEGRADATION; COMPOSITE; SOLAR; NANOSTRUCTURES; NANOCOMPOSITE;
D O I：
10.1038/s41598-020-57493-x
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Surface plasmon resonance (SPR) effect of noble metal nanoparticles (NPs) for photocatalysis has a significant enhancement. In this system, a plasmonic ternary hybrid photocatalyst of Ag/AgBr/g-C3N4 was synthetized and used in water splitting to generation H-2 under visible light irradiation. 18%Ag/AgBr/g-C3N4 showed the highest photoactivity, with the efficiency of hydrogen generation as high as 27-fold to that of pristine g-C3N4. Compared to simple mixture of Ag/AgBr and g-C3N4, hetero-composite Ag/AgBr/g-C3N4 showed a higher photoactivity, even though they contained same content of Ag/AgBr. We find that significant factors for enhancing properties were the synergistic effect between Ag/AgBr and g-C3N4, and the light absorption enhancing by SPR effect of Ag NPs. Ag/AgBr NPs firmly anchored on the surface of g-C3N4 and their high dispersion were also responsible for the improved activity and long-term recycling ability. The structure of Ag/AgBr/g-C3N4 hybrid materials and their enhancement to photocatalytic activity were discussed. Meanwhile, the possible reaction mechanism of this system was proposed.
引用
收藏
页数：12
相关论文
共 78 条
[1]   Plasmonic silver incorporated silver halides for efficient photocatalysis [J].
An, Changhua ;
Wang, Shutao ;
Sun, Yugang ;
Zhang, Qinhui ;
Zhang, Jun ;
Wang, Chenyu ;
Fang, Jiye .
JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (12) :4336-4352
[2]   Hollow AgI:Ag Nanoframes as Solar Photocatalysts for Hydrogen Generation from Water Reduction [J].
An, Changhua ;
Wang, Jizhuang ;
Liu, Junxue ;
Wang, Shutao ;
Sun, Yugang .
CHEMSUSCHEM, 2013, 6 (10) :1931-1937
[3]   Growth of three-dimensional flower-like SnS2 on g-C3N4 sheets as an efficient visible-light photocatalyst, photoelectrode, and electrochemical supercapacitance material [J].
Ansari, Sajid Ali ;
Cho, Moo Hwan .
SUSTAINABLE ENERGY & FUELS, 2017, 1 (03) :510-519
[4]   Plasmons in Pb nanowire arrays on Si(557): Between one and two dimensions [J].
Block, T. ;
Tegenkamp, C. ;
Baringhaus, J. ;
Pfnuer, H. ;
Inaoka, T. .
PHYSICAL REVIEW B, 2011, 84 (20)
[5]  
Cabán-Acevedo M, 2015, NAT MATER, V14, P1245, DOI [10.1038/nmat4410, 10.1038/NMAT4410]
[6]   Crafting Mussel-Inspired Metal Nanoparticle-Decorated Ultrathin Graphitic Carbon Nitride for the Degradation of Chemical Pollutants and Production of Chemical Resources [J].
Cai, Jingsheng ;
Huang, Jianying ;
Wang, Shanchi ;
Iocozzia, James ;
Sun, Zhongti ;
Sun, Jingyu ;
Yang, Yingkui ;
Lai, Yuekun ;
Lin, Zhiqun .
ADVANCED MATERIALS, 2019, 31 (15)
[7]   Ag/AgBr/g-C3N4: A highly efficient and stable composite photocatalyst for degradation of organic contaminants under visible light [J].
Cao, Jing ;
Zhao, Yijie ;
Lin, Haili ;
Xu, Benyan ;
Chen, Shifu .
MATERIALS RESEARCH BULLETIN, 2013, 48 (10) :3873-3880
[8]   Polymeric Photocatalysts Based on Graphitic Carbon Nitride [J].
Cao, Shaowen ;
Low, Jingxiang ;
Yu, Jiaguo ;
Jaroniec, Mietek .
ADVANCED MATERIALS, 2015, 27 (13) :2150-2176
[9]   Design principles for particle plasmon enhanced solar cells [J].
Catchpole, K. R. ;
Polman, A. .
APPLIED PHYSICS LETTERS, 2008, 93 (19)
[10]   Graphitic carbon nitride (g-C3N4)-Pt-TiO2 nanocomposite as an efficient photocatalyst for hydrogen production under visible light irradiation [J].
Chai, Bo ;
Peng, Tianyou ;
Mao, Jing ;
Li, Kan ;
Zan, Ling .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (48) :16745-16752
12345678