Fabrication of novel p–n heterojunction BiOI/La2Ti2O7 composite photocatalysts for enhanced photocatalytic performance under visible light irradiation

2016 ◽  
Vol 45 (19) ◽  
pp. 7986-7997 ◽  
Author(s):  
Yanhui Ao ◽  
Kedan Wang ◽  
Peifang Wang ◽  
Chao Wang ◽  
Jun Hou
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Composite Photocatalyst ◽  
Composite Photocatalysts ◽  
First Time

A novel BiOI/La2Ti2O7 composite photocatalyst with p–n heterojunctions was prepared for the first time. The as-obtained photocatalysts exhibit efficient activity under visible light irradiation for degradation of organic pollutants.

An Ag3PO4/nitridized Sr2Nb2O7 composite photocatalyst with adjustable band structures for efficient elimination of gaseous organic pollutants under visible light irradiation

Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7303-7311 ◽  
Author(s):  
Jianjun Guo ◽  
Han Zhou ◽  
Shuxin Ouyang ◽  
Tetsuya Kako ◽  
Jinhua Ye
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Gaseous Pollutants ◽  
Band Structures ◽  
Composite Photocatalyst ◽  
Efficient Elimination

A new Ag3PO4/nitridized Sr2Nb2O7 (N: 0–6.18 wt%) heterojunction was designed to eliminate gaseous pollutants under visible light irradiation.

scholarly journals Highly efficient zinc oxide-carbon nitride composite photocatalysts for degradation of phenol under UV and visible light irradiation

2018 ◽  
Vol 14 (1-2) ◽  
pp. 159-163 ◽  
Author(s):  
Faisal Hussin ◽  
Hendrik Oktendy Lintang ◽  
Siew Ling Lee ◽  
Leny Yuliati
Keyword(s):  
Zinc Oxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Visible Region ◽  
Light Irradiation ◽  
Composite Photocatalyst ◽  
Optimum Content ◽  
Composite Photocatalysts

In order to utilize solar light in an efficient way, a good photocatalyst shall absorb both UV and visible light. In this study, a series of composite photocatalyst consisting of zinc oxide (ZnO) and carbon nitride (CN) was successfully prepared through a physical mixing method. The ZnO is an ultraviolet (UV)-based photocatalyst, while the CN is known as a visible light-driven photocatalyst. The effect of zinc to carbon mol ratio (Zn/C) towards the properties and photocatalytic activities was investigated. X-ray diffraction (XRD) patterns revealed that the prepared ZnO-CN composite photocatalysts composed of wurtzite ZnO and graphitic CN. The presence of ZnO and CN made the composites have absorption at both UV and visible region, suggesting the potential application as photocatalysts under both UV and visible light. Fluorescence studies revealed that all ZnO-CN composites showed emission peaks at 445 and 460 nm when excited at 273 nm, but with lower intensity as compared to those of the CN. The lower emission intensity suggested the role of ZnO to reduce the charge recombination and improve the charge separation on the CN. The ZnO-CN composites were further evaluated for photocatalytic degradation of phenol. The amount of degraded phenol was determined by a gas chromatography, in which a flame ionization detector was used in this study (GC-FID). The composite photocatalyst with an optimum content of 1% Zn/C gave almost 1.15 times higher activity than the CN under visible light irradiation. On the other hand, the composite photocatalyst with an optimum content of 50% Zn/C showed 2.6 times higher activity than the CN under UV light. The improved photocatalytic efficiency on the ZnO-CN composite photocatalysts was caused by the synergic effect between ZnO and CN. The ZnO would boost the separation efficiency of photogenerated electrons on the CN, while the CN would enable ZnO to absorb visible light region as the ZnO-CN composites. 

Enhanced photocatalytic performance of morphologically tuned Bi 2 S 3 NPs in the degradation of organic pollutants under visible light irradiation

2016 ◽  
Vol 483 ◽  
pp. 49-59 ◽  
Author(s):  
Arpita Sarkar ◽  
Abhisek Brata Ghosh ◽  
Namrata Saha ◽  
Divesh N. Srivastava ◽  
Parimal Paul ◽  
...  
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation

An innovative magnetic Ni0.1Co0.9Fe2O4/g-C3N4 nano-micro-spherical heterojunction composite photocatalyst with an extraordinarily prominent visible-light-irradiation degradation performance toward organic pollutants

2020 ◽  
Vol 49 (28) ◽  
pp. 9849-9862
Author(s):  
Zongrong Ying ◽  
Jing Sun ◽  
Xuemei Lin ◽  
Yuxuan Wang ◽  
Shengjie Hui ◽  
...  
Keyword(s):  
Visible Light ◽  
Organic Pollutants ◽  
Visible Light Irradiation ◽  
High Performance ◽  
Light Irradiation ◽  
Composite Photocatalyst

An ultra-high-performance magnetic heterojunction photocatalyst was fabricated via post co-calcining the mixture of solvothermal micro-spherical g-C3N4 and nanospherical Ni0.1Co0.9Fe2O4.

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