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.

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.

Synthesis of one-dimensional WO3–Bi2WO6 heterojunctions with enhanced photocatalytic activity

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 569-576 ◽  
Author(s):  
Yin Peng ◽  
Qing-Guo Chen ◽  
Dan Wang ◽  
Hai-Yan Zhou ◽  
An-Wu Xu
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Photogenerated Electron ◽  
High Photocatalytic Activity ◽  
Light Irradiation ◽  
Solar Light ◽  
Electron Hole ◽  
One Dimensional ◽  
Effective Separation ◽  
Solar Light Irradiation

A one-dimensional WO3–Bi2WO6 photocatalyst exhibits high photocatalytic activity for the degradation of rhodamine B (RhB) under solar light irradiation, which is attributed to the effective separation of photogenerated electron–hole pairs by the staggered band potentials between WO3 and Bi2WO6.

scholarly journals In-situ synthesis of CN@La(OH)3 nanocomposite for improved the charge separation and enhanced the photocatalytic activity towards Cr(VI) reduction under visible light

2021 ◽  
pp. 100048
Author(s):  
Amanulla Baishnisha ◽  
Krishnan Divakaran ◽  
Vellaichamy Balakumar ◽  
Venkidusamy Sasirekha ◽  
Chandran Meenakshi ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Charge Separation ◽  
In Situ Synthesis

Greatly enhanced photocatalytic activity by organic flexible piezoelectric PVDF induced spatial electric field

2017 ◽  
Vol 7 (23) ◽  
pp. 5594-5601 ◽  
Author(s):  
Baoying Dai ◽  
Hengming Huang ◽  
Wei Wang ◽  
Yukai Chen ◽  
Chunhua Lu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electric Field ◽  
Charge Separation ◽  
High Photocatalytic Activity ◽  
Efficient Charge ◽  
Vital Factor

Efficient charge separation accelerated by a spatial electric field is a vital factor for semiconductor photocatalysts to achieve high photocatalytic activity.

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.

Preparation of novel AgBr/Bi 3 O 4 Br hybrid with high photocatalytic activity via in situ ion exchange method

2017 ◽  
Vol 193 ◽  
pp. 73-76 ◽  
Author(s):  
Jingxiong Yu ◽  
Min Cui ◽  
Xingzheng Liu ◽  
Qianqian Chen ◽  
Ying Wu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ion Exchange ◽  
High Photocatalytic Activity ◽  
Exchange Method ◽  
Ion Exchange Method

Highly dispersive nano-TiO2 in situ growing on functional graphene with high photocatalytic activity

2016 ◽  
Vol 18 (1) ◽  
Author(s):  
Gonggang Liu ◽  
Ruimeng Wang ◽  
Hui Liu ◽  
Kai Han ◽  
Huanqing Cui ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
High Photocatalytic Activity ◽  
Nano Tio2

Synthesis of Bi2WO6/g-C3N4 photocatalyst and high degradation of Rhodamine B under visible light irradiation

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wenjie Wang ◽  
Mengran Zhang ◽  
Binxia Zhao ◽  
Linxue Liu ◽  
Ruixuan Han ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Hydrothermal Reaction ◽  
Active Species ◽  
High Photocatalytic Activity ◽  
Rapid Separation ◽  
Content Type ◽  
Photogenerated Electrons ◽  
Molecular Substances ◽  
Photocatalytic Material

Purpose The purpose of this paper is to improve the degradation efficiency of Rhodamine B (RhB) by new photocatalytic materials. Design/methodology/approach Binary Z-scheme g-C3N4/Bi2WO6 photocatalytic material was synthesized by the one-step hydrothermal reaction. The construction of Z-scheme heterojunction led to the rapid separation of photogenerated electrons and holes, which would degrade RhB into small molecular substances to achieve the purpose of degradation. Findings It was found that Bi2WO6/25%g-C3N4 displayed the highest photocatalytic activity, which was about 1.44 and 1.34 times higher than that of pure Bi2WO6 and g-C3N4, respectively. According to the trapping experiments, the superoxide radical (·O2−) was the major active species of the RhB decomposition in Bi2WO6/g-C3N4 catalysts. Originality/value The successful synthesis of Z-scheme Bi2WO6/g-C3N4 provides new ideas and references for the design of catalysts with high photocatalytic activity, which should have wide applications in the future.

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