Journal ArticleDOI
Facet-Dependent Photocatalytic N2 Fixation of Bismuth-Rich Bi5O7I Nanosheets
TLDR
This work presents the first report about the facet-dependent photocatalytic performance of bismuth-rich Bi-O-X photocatalyst, synthesizing two Bi5O7I nanosheets with different dominant facets using either molecular precursor hydrolysis or calcination.Abstract:
Bismuth-rich bismuth oxyhalides (Bi–O–X; X = Cl, Br, I) display high photocatalytic reduction activity due to the promoting conduction band potential. In this work, two Bi5O7I nanosheets with different dominant facets were synthesized using either molecular precursor hydrolysis or calcination. Crystal structure characterizations, included X-ray diffraction patterns (XRD), field emission electron microscopy and fast Fourier transformation (FFT) images, showed that hydrolysis and calcination resulted in the dominant exposure of {100} and {001} facets, respectively. Photocatalytic data revealed that Bi5O7I–001 had a higher activity than Bi5O7I–100 for N2 fixation and dye degradation. Photoelectrochemical data revealed that Bi5O7I–001 had higher photoinduced carrier separation efficiency than Bi5O7I–100. The band structure analysis also used to explain the underlying photocatalytic mechanism based on the different conduction band position. This work presents the first report about the facet-dependent photocat...read more
Citations
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Journal ArticleDOI
Light-Switchable Oxygen Vacancies in Ultrafine Bi 5 O 7 Br Nanotubes for Boosting Solar-Driven Nitrogen Fixation in Pure Water
Shengyao Wang,Shengyao Wang,Shengyao Wang,Xiao Hai,Xiao Hai,Xing Ding,Kun Chang,Yonggang Xiang,Xianguang Meng,Xianguang Meng,Zixin Yang,Hao Chen,Hao Chen,Jinhua Ye,Jinhua Ye,Jinhua Ye +15 more
TL;DR: This study shows the first synthesis of self-assembled 5 nm diameter Bi5 O7 Br nanotubes with strong nanotube structure, suitable absorption edge, and many exposed surface sites, which are favorable for furnishing sufficient visible light-induced OVs to realize excellent and stable photoreduction of atmospheric N2 into NH3 in pure water.
Journal ArticleDOI
Precursor-reforming protocol to 3D mesoporous g-C3N4 established by ultrathin self-doped nanosheets for superior hydrogen evolution
Na Tian,Yihe Zhang,Xiaowei Li,Ke Xiao,Xin Du,Fan Dong,Geoffrey I. N. Waterhouse,Tierui Zhang,Hongwei Huang,Hongwei Huang +9 more
TL;DR: In this paper, a 3D mesoporous ultrathin g-C 3 N 4 photocatalyst with superior photocatalytic performance compared to conventional calcination-derived gC 3N 4 is presented.
Journal ArticleDOI
Photocatalytic fixation of nitrogen to ammonia: state-of-the-art advancements and future prospects
TL;DR: In this paper, the state-of-the-art engineering of efficient photocatalysts for dinitrogen (N2) fixation toward NH3 synthesis is reviewed and the challenges, outlooks and future prospects at the forefront of this research platform are presented.
Journal ArticleDOI
Novel ternary photocatalyst of single atom-dispersed silver and carbon quantum dots co-loaded with ultrathin g-C3N4 for broad spectrum photocatalytic degradation of naproxen
Fengliang Wang,Yingfei Wang,Yiping Feng,Yongqin Zeng,Zhijie Xie,Qianxin Zhang,Yuehan Su,Ping Chen,Yang Liu,Kun Yao,Wenying Lv,Guoguang Liu +11 more
TL;DR: In this article, a ternary photocatalyst comprised of single atom-dispersed silver and carbon quantum dots, co-loaded with ultrathin g-C 3 N 4 (SDAg-CQDs/UCN), exhibited a highly enhanced photoresponse and broad-spectrum (UV, visible, and near-infrared) photocatalytic activity.
Journal ArticleDOI
Ultrathin 2D Photocatalysts: Electronic-Structure Tailoring, Hybridization, and Applications.
TL;DR: The advancement of versatile photocatalytic applications of ultrathin 2D photoc atalysts in the fields of water oxidation, hydrogen evolution, CO2 reduction, nitrogen fixation, organic syntheses, and removal pollutants is discussed.
References
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Journal ArticleDOI
Anatase TiO(2) single crystals with a large percentage of reactive facets
Hua Gui Yang,Chenghua Sun,Shi-Zhang Qiao,Jin Zou,Gang Liu,Sean C. Smith,Hui-Ming Cheng,Gao Qing Lu +7 more
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Journal ArticleDOI
Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4
Rengui Li,Fuxiang Zhang,Donge Wang,Jingxiu Yang,Jingxiu Yang,Mingrun Li,Jian Zhu,Jian Zhu,Xin Zhou,Hongxian Han,Can Li +10 more
TL;DR: The results show that the photogenrated electrons and holes can be separated between the different facets of semiconductor crystals, which may be useful in semiconductor physics and chemistry to construct highly efficient solar energy conversion systems.
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Efficient Visible Light Nitrogen Fixation with BiOBr Nanosheets of Oxygen Vacancies on the Exposed {001} Facets
TL;DR: It is demonstrated that efficient fixation of N2 to NH3 can proceed under room temperature and atmospheric pressure in water using visible light illuminated BiOBr nanosheets of oxygen vacancies in the absence of any organic scavengers and precious-metal cocatalysts.
Journal ArticleDOI
Facet Effect of Single-Crystalline Ag3PO4 Sub-microcrystals on Photocatalytic Properties
TL;DR: This work has developed a facile and general route for high-yield fabrication of single-crystalline Ag(3)PO(4) rhombic dodecahedrons with only {110} facets exposed and cubes bounded entirely by {100} facets.
Journal ArticleDOI
Heterojunction BiVO4/WO3 electrodes for enhanced photoactivity of water oxidation
TL;DR: In this paper, a heterojunction electrode was fabricated by layer-by-layer deposition of WO3 and BiVO4 on a conducting glass, and investigated for photoelectrochemical water oxidation under simulated solar light.