Novel carbon dots/BiOBr nanocomposites with enhanced UV and visible light driven photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 31057-31063 ◽  
Author(s):  
Qingqing Du ◽  
Wenpeng Wang ◽  
Yongzhong Wu ◽  
Gang Zhao ◽  
Fukun Ma ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Carbon Dots ◽  
Photocatalytic Activities ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

Novel CD/BiOBr nanocomposites were prepared and both UV and visible light photocatalytic activities were enhanced.

Oxygen-defective ZnO porous nanosheets modified by carbon dots to improve their visible-light photocatalytic activity and gain mechanistic insight

2020 ◽  
Vol 44 (26) ◽  
pp. 11215-11223 ◽  
Author(s):  
Feng Guo ◽  
Haoran Sun ◽  
Lei Cheng ◽  
Weilong Shi
Keyword(s):  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Visible Light ◽  
Carbon Dots ◽  
Composite Photocatalyst ◽  
Wet Chemistry ◽  
Mechanistic Insight ◽  
Porous Nanosheets ◽  
One Step ◽  
Visible Light Photocatalytic

A carbon dots/oxygen-defective ZnO (COZ) porous nanosheet composite photocatalyst was prepared via a one-step liquid-phase wet chemistry method for the highly efficient visible-light photocatalytic degradation of tetracycline (TC).

0D/3D-CdSe/Bi12TiO20 Pyramidal Heterostructure Photocatalysts for Enhanced Visible-Light Photocatalytic Activities

NANO ◽  
2017 ◽  
Vol 12 (06) ◽  
pp. 1750072 ◽  
Author(s):  
Tao Wang ◽  
Changchang Ma ◽  
Dan Wu ◽  
Xinlin Liu ◽  
Yang Liu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
High Stability ◽  
Photocatalytic Efficiency ◽  
Cdse Qds ◽  
Electron Hole ◽  
Adsorption Sites ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

In this paper, a novel heterostructure of 0D/3D-CdSe/Bi[Formula: see text]TiO[Formula: see text] pyramidal photocatalyst was synthesized and characterized. It exhibited significantly photocatalytic efficiency in photocatalytic degradation of the tetracycline than pure Bi[Formula: see text]TiO2 and CdSe and showed high stability. The enhanced photocatalytic activity might be attributed to the formation of heterostructure between CdSe QDs and 3D Bi[Formula: see text]TiO[Formula: see text], in which CdSe QDs served as electron trapper to improve the separation of photodegradation electron–hole pairs, and provided a number of active adsorption sites for the photogenerated of pollutants. The photocatalytic mechanism of 0D/3D-CdSe/Bi[Formula: see text]TiO[Formula: see text] pyramidal heterostructure was also proposed.

Synthesis of wrinkled graphene hybrids for enhanced visible-light photocatalytic activities

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45617-45623 ◽  
Author(s):  
Hua Xu ◽  
Jian Xin Xiang ◽  
Pin Wu ◽  
Yi Fei Lu ◽  
Shuai Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

Wrinkled graphene hybrids were controllable prepared and exhibit enhanced photocatalytic activity in the degradation of methylene blue under visible light.

scholarly journals Facile synthesis of chitosan membranes for visible-light-driven photocatalytic degradation of tetracycline hydrochloride

RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 45171-45179
Author(s):  
Huimin Liang ◽  
Caizhi Lv ◽  
Hanjiao Chen ◽  
Lan Wu ◽  
Xiandeng Hou
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Degradation Mechanism ◽  
Tetracycline Hydrochloride ◽  
Facile Synthesis ◽  
Chitosan Membrane ◽  
Visible Light Driven ◽  
Chitosan Membranes ◽  
Visible Light Photocatalytic

Chitosan membrane exhibited a good visible light photocatalytic activity over tetracycline hydrochloride degradation. The corresponding degradation mechanism was investigated as shown above.

Fabrication of Fe2TiO5/TiO2 nanoheterostructures with enhanced visible-light photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45343-45348 ◽  
Author(s):  
Zirui Lou ◽  
Yaguang Li ◽  
Hui Song ◽  
Zhizhen Ye ◽  
Liping Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Uniform Distribution ◽  
Surface Area ◽  
Shell Thickness ◽  
Hollow Nanospheres ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

In this work, we have fabricated Fe2TiO5/TiO2 heterostructures hollow nanospheres with 10 nm scale shell thickness, 220 m2 g−1 surface area and uniform distribution. Their visible photocatalytic activities for degrading pollutant are greatly enhanced.

High-Efficiency Preparation of N-Doped Titania with High Visible Light Photocatalytic Activity Using Composite N Precursor

2015 ◽  
Vol 645-646 ◽  
pp. 368-374
Author(s):  
Yu Long Hu ◽  
Xiao Dong Zhang ◽  
Hong Fang Liu ◽  
Xing Peng Guo
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
High Efficiency ◽  
Thermo Gravimetric Analysis ◽  
Ammonium Hydroxide ◽  
Gravimetric Analysis ◽  
X Ray ◽  
Visible Light Photocatalytic Activity ◽  
Photocatalytic Activities ◽  
Visible Light Photocatalytic

N-doped TiO2 nanoparticle powders were prepared efficiently by the sol-gel method using triethylamine and ammonium hydroxide as composite N precursor. The as-prepared N-doped TiO2 precursor powders were calcined at 300°C in air for 3 h and subsequently annealed at 300°C in air for 2.5 h. The samples were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, thermo-gravimetric analysis, and X-ray photoelectron spectroscopy. The visible light photocatalytic activities of as-prepared samples were evaluated by photodecomposition of methyl orange (MO). The results show that the as-prepared samples have high visible light photocatalytic activities. Triethylamine produces the N-species doped in TiO2 lattice responsible for the high visible light photocatalytic activity. Ammonium hydroxide makes the gel of the TiO2 nanoparticles nitrided by triethylamine gelate further and facilitates significantly the centrifugation of the gel. An annealing treatment can eliminate effectively the outer N species caused by ammonium hydroxide and the surface organic residues, improve effectively crystallinity, and retain the N species caused by triethylamine.

Hydrothermal formation of N/Ti3+ codoped multiphasic (brookite–anatase–rutile) TiO2 heterojunctions with enhanced visible light driven photocatalytic performance

2017 ◽  
Vol 46 (45) ◽  
pp. 15727-15735 ◽  
Author(s):  
Mingxuan Sun ◽  
Yuanyuan Kong ◽  
Yalin Fang ◽  
Swati Sood ◽  
Yuan Yao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Rutile Tio2 ◽  
Visible Light Photocatalytic Activity ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

Multiphasic TiO2 heterojunctions codoped with N and Ti3+ were fabricated and their enhanced visible light photocatalytic activity for the degradation of methylene blue was demonstrated.

Photocatalytic Degradation of Organic Pollutants at Solution Bulk with Pigment/TiO2 Nanocomposite

2013 ◽  
Vol 562-565 ◽  
pp. 1319-1324 ◽  
Author(s):  
Xi Li Shangand ◽  
Tian Yong Zhang ◽  
Chang Hai Li ◽  
Bin Li ◽  
Xiao Wang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Industrial Wastewater ◽  
Adsorption Capacities ◽  
Photocatalytic Activities ◽  
Ft Ir ◽  
Adsorption Desorption ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

In this paper, two newly explored TiO2 photocatalyst sensitized with commercial stable pigment (BYH3G and PR254) were prepared and characterized by FT–IR, UV–Vis, XRD and N2 adsorption-desorption isotherms. The adsorption capacities and the photocatalytic activities of as-prepared photocatalysts were evaluated by photocatalytic degradation of Methyl Orange and Rhodamine B under visible light irradiation. The as-prepared photocatalysts displayed high visible light photocatalytic activity than pure TiO2 under the same conditions. The photocatalytic activity can be reproduced commendably demonstrates that the as-prepared photocatalysts are stable and renewable, which are potentially important properties in the application of industrial wastewater treatment.

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