Fabrication of Bi12O17Br2 with Efficient Photocatalytic N2 Fixation Boosted by Photoinduced Oxygen Vacancies

被引:2
|
作者
Gao Mei-Chao [1 ]
Gong Yun-Yun [1 ]
Li Zi-Yue [1 ]
Wang Bai-Hui [1 ]
Huang Xiao-Qing [1 ]
Yu Wen-Jiao [1 ]
机构
[1] Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China
关键词
Bi12O17Br2; photocatalysis; oxygen vacancy; N-2 photo fixation; NITROGEN-FIXATION; BIOBR NANOSHEETS; CARBON NITRIDE; DEGRADATION; PHOTOREDUCTION; PERFORMANCE;
D O I
10.11862/CJIC.2022.043
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Bi12O17Br2 photocatalyst was prepared through a one-pot hydrothermal method. An average microsheets size of 1.2 mu m and a high specific surface area of ca. 29 m(2).g(-1) were observed for Bi12O17Br2 photocatalyst. Bi12O17Br2 has a bandgap of 2.42 eV, which can be excited under visible light illumination. The photoinduced oxygen vacancies are easily generated on the surface of Bi12O17Br2. The N-2 molecules could be captured and activated by oxygen vacancies. An NH3 generation rate of 337.6 mu mol.g(-1).h(-1) was detected on Bi12O17Br2 under visible light irradiation. It demonstrates that the accomplishment of the visible-light-driven photocatalytic for the N-2 photo fixation with H2O over a Bi12O17Br2 photocatalyst.
引用
收藏
页码:542 / 550
页数:9
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