Self-assembled three-dimensional flowerlike Mn0.8Cd0.2S microspheres as efficient visible-light-driven photocatalysts for H2 evolution and CO2 reduction

2017 ◽  
Vol 7 (17) ◽  
pp. 3802-3811 ◽  
Author(s):  
Hong Liu ◽  
Jingchai Meng ◽  
Jiang Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Solvothermal Method ◽  
Three Dimensional ◽  
Co2 Reduction ◽  
H2 Evolution ◽  
Hierarchical Microspheres ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven ◽  
Self Assembled

3D flowerlike Mn0.8Cd0.2S hierarchical microspheres assembled from nanosheets with excellent photocatalytic activity and stability were fabricated by a facile PVP-assisted solvothermal method.

Hydrothermal Synthesis and Visible-Light-Driven Photocatalytic Activities of Bi2WO6 Uniform Hierarchical Microspheres

2014 ◽  
Vol 887-888 ◽  
pp. 181-184
Author(s):  
Yan Lan ◽  
Xiong Wang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
High Photocatalytic Activity ◽  
X Ray Diffraction ◽  
Facile Hydrothermal Method ◽  
Photo Degradation ◽  
Hierarchical Microspheres ◽  
Excellent Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Driven

The microsphere Bi2WO6has been synthesized by a facile hydrothermal method by using Bi (NO3)35H2O, H40N10O41W125H2O and CO(NH2)2(urea) as the starting materials. The as-synthesized Bi2WO6was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM),BET and UV-vis absorption spectroscopy. The visible-light-responsive photocatalytic activity of Bi2WO6microspheres was evaluated by the photo-degradation of RhB under Xe lamp irradiation. The degradation is up to 96% in 3h. The results show that microsphere Bi2WO6exhibited excellent photocatalytic activity. The reasons for the high photocatalytic activity have been discussed carefully.

Immobilization of BiOBr/BiOI Hierarchical Microspheres on Fly Ash Cenospheres as Visible Light Photocatalysts

2016 ◽  
Vol 69 (1) ◽  
pp. 119 ◽  
Author(s):  
Li Lin ◽  
Ya Wang ◽  
Manhong Huang ◽  
Donghui Chen
Keyword(s):  
Photocatalytic Activity ◽  
Fly Ash ◽  
Visible Light ◽  
Diffuse Reflectance Spectroscopy ◽  
Three Dimensional ◽  
One Pot ◽  
Transmission Electron ◽  
Hierarchical Microspheres ◽  
2D Nanosheets ◽  
Fly Ash Cenospheres

Three-dimensional (3D) BiOBr/BiOI hierarchical microspheres were successfully fabricated on the surface of fly ash cenospheres (FACs) via a facile one-pot solvothermal method for the first time. The as-prepared samples were characterized by XRD, SEM, energy-dispersive X-ray spectroscopy, UV–visible diffuse reflectance spectroscopy, and high-resolution transmission electron microscopy. The results indicated that the loaded hierarchical microspheres exhibited a uniform distribution, and some aggregation was observed. These well-dispersed hierarchical microspheres were composed of 2D nanosheets, which possess heterojunction structures. Based on the photodegradation tests examining the removal of rhodamine B from water under visible light irradiation (λ > 420 nm), the photocatalytic activity of BiOB/BiOI/FACs was superior to that of BiOBr/FACs and BiOI/FACs. A proposed mechanism for the enhanced photocatalytic activity displayed by BiOB/BiOI/FACs is discussed.

Enabling Visible-Light-Driven Selective CO2 Reduction by Doping Quantum Dots: Trapping Electrons and Suppressing H2 Evolution

2018 ◽  
Vol 130 (50) ◽  
pp. 16685-16689 ◽  
Author(s):  
Jin Wang ◽  
Tong Xia ◽  
Lei Wang ◽  
Xusheng Zheng ◽  
Zeming Qi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Co2 Reduction ◽  
H2 Evolution ◽  
Visible Light Driven

scholarly journals CuInS2/Mg(OH)2 Nanosheets for the Enhanced Visible-Light Photocatalytic Degradation of Tetracycline

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1567 ◽  
Author(s):  
Xiaogang Zheng ◽  
Yiting Mao ◽  
Jing Wen ◽  
Xiaojin Fu ◽  
Xinhui Liu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Ph Value ◽  
Inorganic Ions ◽  
Charge Carriers ◽  
Oh Radicals ◽  
Cycle Times ◽  
Atomic Force ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven

CuInS2/Mg(OH)2 (CIS/Mg(OH)2) nanosheets have been prepared for the visible light activated photodegradation of tetracycline hydrochloride (TCH). The introduction of CuInS2 has proven to enhance the photocatalytic activity of Mg(OH)2 nanosheets. It’s ascribed to the enhanced transfer and separation of charge carriers at the junction interface between CuInS2 and Mg(OH)2. The photocatalytic activity of obtained CIS/Mg(OH)2 is greatly affected by CuInS2 content, pH value, and inorganic ions. Among these samples, 2-CIS/Mg(OH)2 exhibits the excellent photocatalytic activity and durability for the visible light driven removal of TCH after five cycle times. Atomic force microscope (AFM) images indicate that the surface roughness of 2-CIS/Mg(OH)2 is intensively influenced in adsorption-photocatalysis process. The •O2− and •OH radicals are vital for the visible light driven photocatalytic activity of 2-CIS/Mg(OH)2 for TCH removal.

scholarly journals Visible-light-driven Ag/Bi3O4Cl nanocomposite photocatalyst with enhanced photocatalytic activity for degradation of tetracycline

RSC Advances ◽  
2018 ◽  
Vol 8 (65) ◽  
pp. 37200-37207 ◽  
Author(s):  
Enhui Jiang ◽  
Xiaoteng Liu ◽  
Huinan Che ◽  
Chunbo Liu ◽  
Hongjun Dong ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven

A novel Ag/Bi3O4Cl photocatalyst has been synthesized by a facile photodeposition process. The Ag/Bi3O4Cl photocatalyst exhibited excellent photocatalytic activity for the degradation of tetracycline.

Novel MoSe2 hierarchical microspheres for applications in visible-light-driven advanced oxidation processes

Nanoscale ◽  
2015 ◽  
Vol 7 (47) ◽  
pp. 19970-19976 ◽  
Author(s):  
Chu Dai ◽  
Enping Qing ◽  
Yong Li ◽  
Zhaoxin Zhou ◽  
Chao Yang ◽  
...  
Keyword(s):  
Visible Light ◽  
Self Assembly ◽  
Advanced Oxidation Processes ◽  
Three Dimensional ◽  
Advanced Oxidation ◽  
Oxidation Processes ◽  
Hierarchical Microspheres ◽  
Molybdenum Diselenide ◽  
Visible Light Driven

Self-assembly of three-dimensional molybdenum diselenide hierarchical microspheres and their visible-light-driven advanced oxidation processes.

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