Effective Cocatalyst Pt/PtO Nanodots on La2O3 Microspheres for Degradation of Methyl Orange

2020 ◽  
Vol 20 (5) ◽  
pp. 3140-3147 ◽  
Author(s):  
Zehao Zhao ◽  
Jiaolong Liu ◽  
Ming Qin ◽  
Kaichang Kou ◽  
Guanglei Wu ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Organic Pollutants ◽  
Rate Constant ◽  
Shell Structure ◽  
Photocatalytic Performance ◽  
Xps Analysis ◽  
Sem Images ◽  
Promising Strategy ◽  
Xrd Patterns ◽  
Degradation Of Methyl Orange

Platinum (Pt) has been intensively studied as an effective cocatalyst for photocatalysis, but most reports have focused on metallic Pt rather than PtO. Here, Pt/PtO nanodots were deposited on porous yolk–shell La2O3 microspheres. XRD patterns and XPS analysis demonstrated the coexistence of Pt and PtO, which was beneficial for photocatalytic performance. SEM images showed the yolk–shell structure of La2O3, and TEM images demonstrated that the Pt/PtO nanodots were uniformly distributed on the La2O3 microspheres. The rate constant of the hybrid was calculated to be 0.00656 min−1 for methyl orange (MO) degradation, while that of bare La2O3 was only 0.00303 min−1. This work suggests that the use of the deposited cocatalyst Pt/PtO on La2O3 microspheres is a promising strategy for the degradation of organic pollutants.

The influence of ZnO loading amount on the photocatalytic performance of Fe3O4@SiO2@ZnO–Ag composites toward the degradation of organic pollutants and hydrogen evolution

2021 ◽  
Author(s):  
Jian Wang ◽  
Junlin Zhong ◽  
Jinghai Yang ◽  
Xin Qu ◽  
Yukai Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Organic Pollutants ◽  
Shell Structure ◽  
Photocatalytic Performance ◽  
Core Shell ◽  
Photocatalytic Ability ◽  
Core Shell Structure ◽  
Loading Amount

Magnetically reusable Fe3O4@SiO2@ZnO-Ag with well-designed core-shell structure, controllable ZnO loading amount and excellent photocatalytic ability toward organic pollutants degradation and hydrogen evolution were synthesized.

Excellent visible-light-driven photocatalytic performance of Cu2O sensitized NaNbO3heterostructures

2015 ◽  
Vol 39 (8) ◽  
pp. 6171-6177 ◽  
Author(s):  
Mingshan Fan ◽  
Bo Hu ◽  
Xu Yan ◽  
Chengjie Song ◽  
Tianjun Chen ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Catalytic Activities ◽  
Visible Light Driven ◽  
Degradation Of Methyl Orange

Heterostructure complexes of Cu2O/NaNbO3exhibited high catalytic activities on the degradation of methyl orange.

scholarly journals Photocatalytic Performance and Mechanistic Research of ZnO/g-C3N4 on Degradation of Methyl Orange

ACS Omega ◽  
2019 ◽  
Vol 4 (24) ◽  
pp. 20742-20747 ◽  
Author(s):  
Renquan Guan ◽  
Jiaxin Li ◽  
Junkai Zhang ◽  
Zhao Zhao ◽  
Dandan Wang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Performance ◽  
Degradation Of Methyl Orange

scholarly journals Preparation, characterization and photocatalytic performance of heterostructured CuO–ZnO-loaded composite nanofiber membranes

2020 ◽  
Vol 11 ◽  
pp. 631-650 ◽  
Author(s):  
Wei Fang ◽  
Liang Yu ◽  
Lan Xu
Keyword(s):  
Methyl Orange ◽  
Process Parameters ◽  
Composite Nanofibers ◽  
Photocatalytic Performance ◽  
Structure And Properties ◽  
Optimal Process ◽  
Semiconductor Oxides ◽  
Synthesis Parameters ◽  
Nanofiber Membranes ◽  
Degradation Of Methyl Orange

Inorganic semiconductor oxides loaded on composite nanofibers (CNFs) have been widely applied in environmental monitoring, industry, aviation, and transportation. In this paper, heterostructured CuO–ZnO-loaded CNF membranes (CNFMs) were prepared successfully by a combination of electrospinning, heat treatment, and hydrothermal synthesis. The influence of the synthesis parameters on morphology, structure, and properties of the CNFMs was investigated, and the optimal process parameters were determined. Then, the CNFMs obtained with optimal process parameters were applied for the photocatalytic degradation of methyl orange. It was found that the CNFMs could be reused to degrade methyl orange at least three times, and the degradation rate remained above 90%.

scholarly journals Photocatalytic Performance and Mechanism Research of Ag/HSTiO2 on Degradation of Methyl Orange

ACS Omega ◽  
2020 ◽  
Vol 5 (34) ◽  
pp. 21451-21457 ◽  
Author(s):  
Mingxin Li ◽  
Renquan Guan ◽  
Jiaxin Li ◽  
Zhao Zhao ◽  
Junkai Zhang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Photocatalytic Performance ◽  
Mechanism Research ◽  
Degradation Of Methyl Orange ◽  
Performance And Mechanism

An Efficient Method to Form TiO2/CdS Nanotube Arrays Using Anodic Aluminum Oxide (AAO) Templates

2017 ◽  
Vol 727 ◽  
pp. 374-380 ◽  
Author(s):  
Xiao Fei Qu ◽  
Jing Jun Yuan ◽  
Xi Da Deng ◽  
Yu Chen Hou ◽  
Yu Fei Wang ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Aluminum Oxide ◽  
Anodic Aluminum Oxide ◽  
Photocatalytic Performance ◽  
Double Diffusion ◽  
Nanotube Arrays ◽  
Simple Method ◽  
Anodic Aluminum ◽  
Liquid Deposition ◽  
Degradation Of Methyl Orange

In this paper, a simple, efficient and environmental friendly method was proposed to fabricate TiO2/CdS nanotube arrays. The composite nanotubes with a core-shell coaxial structure were fabricated via a simple method of liquid deposition and double diffusion using anodic aluminum oxide (AAO) templates. The photocatalytic properties of the nanotube arrays (TiO2, TiO2/CdS) were confirmed by the degradation of methyl orange (MO) under UV irradiation. Compared to bare TiO2 nanotube arrays, TiO2/CdS composite nanotube arrays showed improved photocatalytic performance: The degradation efficiency of TiO2/CdS and TiO2 nanotube arrays towards methyl orange was 65% and 39%, respectively.

Mesoporous Ag/TiO2nanocomposites with greatly enhanced photocatalytic performance towards degradation of methyl orange under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59297-59305 ◽  
Author(s):  
Zhengfeng Zhao ◽  
Yingzi Wang ◽  
Jing Xu ◽  
Yan Wang
Keyword(s):  
Methyl Orange ◽  
Visible Light ◽  
Uv Irradiation ◽  
Photocatalytic Performance ◽  
Degradation Of Methyl Orange

Mesoporous Ag/TiO2nanocomposites fabricated by dealloying/calcination show superior photocatalytic performance under visible light as well as UV irradiation.

Coupling with a narrow-band-gap semiconductor for the enhancement of visible-light photocatalytic activity: preparation of Bi2OxS3−x/Nb6O17 and application to the degradation of methyl orange

2016 ◽  
Vol 45 (35) ◽  
pp. 13944-13950 ◽  
Author(s):  
Gang Yan ◽  
Hongfei Shi ◽  
Huaqiao Tan ◽  
Wanbin Zhu ◽  
Yonghui Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Visible Light ◽  
Band Gap ◽  
Photocatalytic Performance ◽  
Narrow Band ◽  
Visible Light Photocatalytic Activity ◽  
Degradation Of Methyl Orange ◽  
Visible Light Photocatalytic

A new 2D sheet composite Bi2OxS3−x/Nb6O17 has been prepared, which shows good visible light photocatalytic performance for the degradation of methyl orange.

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