High photocatalytic activity enhancement of titania inverse opal films by slow photon effect induced strong light absorption

2013 ◽  
Vol 1 (48) ◽  
pp. 15491 ◽  
Author(s):  
Min Wu ◽  
Jun Jin ◽  
Jing Liu ◽  
Zhao Deng ◽  
Yu Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Light Absorption ◽  
High Photocatalytic Activity ◽  
Inverse Opal ◽  
Strong Light ◽  
Activity Enhancement

Improved light absorption and photocatalytic activity of Zn,N-TiO2−x rich in oxygen vacancies synthesized by nitridation and hydrogenation

2015 ◽  
Vol 39 (4) ◽  
pp. 2417-2420 ◽  
Author(s):  
Yidong Hu ◽  
Gang Chen ◽  
Chunmei Li ◽  
Yaoguang Yu ◽  
Jingxue Sun ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Light Absorption ◽  
Oxygen Vacancies ◽  
High Photocatalytic Activity

Compared with N-TiO2 and Zn,N-TiO2 samples, Zn,N-TiO2−x rich in oxygen vacancies demonstrates high photocatalytic activity.

Visible-Light Driven LaNiO3 Nanosized Photocatalysts Prepared by a Sol-Gel Process

2011 ◽  
Vol 279 ◽  
pp. 83-87 ◽  
Author(s):  
Pei Song Tang ◽  
He Sun ◽  
Feng Cao ◽  
Jin Tian Yang ◽  
Sheng Liang Ni ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Light Absorption ◽  
Diffuse Reflectance Spectroscopy ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Visible Light Absorption ◽  
Average Grain Size ◽  
Sol Gel Process

The LaNiO3 nanoparticles were prepared by a sol-gel process. The LaNiO3 nanoparticles were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-Vis diffuse reflectance spectroscopy (DRS). XRD and SEM demonstrate the successful synthesis of single phase perovskite LaNiO3 and an average grain size of 80 nm in diameter. It was found that the as-prepared LaNiO3 shows strong visible-light absorption with absorption onset of 545 nm, indicating a narrow optical band gap of 2.28 eV. Consequently, LaNiO3 nanoparticles show high visible-light photocatalytic activity for decomposition of methyl orange in comparison with the commercial Degussa P25. The photocatalytic experiment shows the high photocatalytic activity for the decomposition of methyl orange under visible-light irradiation, which is attributed to the strong visible-light absorption.

scholarly journals Photocatalytic Degradation of Sulfamethoxazole, Nitenpyram and Tetracycline by Composites of Core Shell g-C3N4@ZnO, and ZnO Defects in Aqueous Phase

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2609
Author(s):  
Godfred Kwesi Teye ◽  
Jingyu Huang ◽  
Yi Li ◽  
Ke Li ◽  
Lei Chen ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Photocatalytic Activity ◽  
Light Absorption ◽  
Charge Separation ◽  
Absorption Efficiency ◽  
High Photocatalytic Activity ◽  
High Load ◽  
Core Shell ◽  
Visible Light Absorption ◽  
Load Separation

The synthesis of photocatalysts with high charge separation and transfer efficiency are of immense significance in the process of using photocatalysis technology for wastewater treatment. In this study core shell g-C3N4@ZnO, and ZnO defects photocatalysts presented an improved morphology in its characterization using techniques such as SEM, DRS, PL, MS, EIS, and XRD, and enhanced photodegradation of sulfamethoxazole, Nitenpyram and Tetracycline. Different composites were obtained as confirmed by the various characterization techniques studied, including core shell g-C3N4@ZnO, and ZnO defects photocatalyst. The synthesized photocatalysts showed high visible light absorption efficiency within a range of ~655 to 420 nm. Core shell g-C3N4@ZnO, and ZnO defects photocatalysts demonstrated high photocatalytic activity ascribed to high load separation and transition as shown in PL, Photocurrent reaction and EIS. It is understandable that core shell g-C3N4@ZnO, and ZnO defects photocatalysts have been confirmed to be one of the ultimate promising entrants for photocatalyst scheming.

Tracing the slow photon effect in a ZnO inverse opal film for photocatalytic activity enhancement

2014 ◽  
Vol 2 (14) ◽  
pp. 5051 ◽  
Author(s):  
Jing Liu ◽  
Jun Jin ◽  
Yu Li ◽  
Hua-Wen Huang ◽  
Chao Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Inverse Opal ◽  
Opal Film ◽  
Activity Enhancement

Synthesis of novel TiO2/BiOCl@HHSS composites and its photocatalytic activity enhancement under simulated sunlight

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101242-101249 ◽  
Author(s):  
Wanliang Yang ◽  
Xu Xiao ◽  
Ruixue Lu ◽  
Hanwen Xie ◽  
Meisong Xu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Hollow Structure ◽  
High Photocatalytic Activity ◽  
Simulated Sunlight ◽  
One Pot ◽  
Activity Enhancement

A novel TiO2/BiOCl@HHSS photocatalyst has been successfully prepared by a facile one-pot method. Due to with special hollow structure, high surface area, and heterostructure, which ultimately makes the TiO2/BiOCl@HHSS has high photocatalytic activity under simulated sunlight.

An inverse opal TiO2/g-C3N4 composite with a heterojunction for enhanced visible light-driven photocatalytic activity

2019 ◽  
Vol 48 (10) ◽  
pp. 3486-3495 ◽  
Author(s):  
Juying Lei ◽  
Bin Chen ◽  
Weijia Lv ◽  
Liang Zhou ◽  
Lingzhi Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Light Absorption ◽  
Separation Efficiency ◽  
Photogenerated Electron ◽  
Absorption Efficiency ◽  
Inverse Opal ◽  
Electron Hole ◽  
Visible Light Absorption ◽  
Visible Light Driven

An inverse opal TiO2/g-C3N4 composite with excellent photogenerated electron–hole separation efficiency and enhanced visible light absorption efficiency was constructed.

Bi-metal–organic frameworks type II heterostructures for enhanced photocatalytic styrene oxidation

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7554-7559 ◽  
Author(s):  
Lulu Liu ◽  
Lei Zhang ◽  
Feng Wang ◽  
Kun Qi ◽  
Haiyan Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Light Absorption ◽  
Metal Organic Frameworks ◽  
Photogenerated Carrier ◽  
Type Ii ◽  
Styrene Oxidation ◽  
Strong Light ◽  
Metal Organic ◽  
Carrier Separation

A dendritic bi-MOFs (UiO-66-NH2@MIL-101(Fe)) heterostructure was prepared, which shows considerable photocatalytic activity, strong light absorption and effective photogenerated carrier separation.

scholarly journals In situ strategy to prepare PDPB/SnO2 p–n heterojunction with a high photocatalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 24064-24069 ◽  
Author(s):  
Yuhang Wang ◽  
Yuanxin Deng ◽  
Linggang Fan ◽  
Yu Zhao ◽  
Bin Shen ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Light Absorption ◽  
Charge Separation ◽  
High Photocatalytic Activity ◽  
Growth Strategy ◽  
Solar Light ◽  
Photodegradation Rate

PDPB/SnO2 heterojunction has been successfully synthesized by an in situ growth strategy, which displays a narrowed bandgap, enhanced solar light absorption, excellent charge separation and improved solar-driven photodegradation rate of Rhodamine B.

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