Rational construction of Ag3PO4/WO3 Step-Scheme heterojunction for enhanced solar-driven photocatalytic performance of O2 evolution and pollutant degradation

2021 ◽  
Author(s):  
Dongsheng Li ◽  
Yong Liu ◽  
Yantao Yang ◽  
Guogang Tang ◽  
Hua Tang
Keyword(s):  
Photocatalytic Performance ◽  
O2 Evolution ◽  
Pollutant Degradation ◽  
Rational Construction

Simplistic Synthesis and Enhanced Photocatalytic Performance of Spherical ZnO Nanoparticles Prepared from Arabinose Solution

2019 ◽  
Vol 74 (10) ◽  
pp. 937-944 ◽  
Author(s):  
Babiker Y. Abdulkhair ◽  
Mutaz E. Salih ◽  
Nuha Y. Elamin ◽  
A. MA. Fatima ◽  
A. Modwi
Keyword(s):  
Zno Nanoparticles ◽  
Photocatalytic Performance ◽  
Hexagonal Wurtzite Structure ◽  
Zinc Nitrate ◽  
Wurtzite Structure ◽  
Sugar Solution ◽  
X Ray Diffraction ◽  
Pollutant Degradation ◽  
X Ray ◽  
Good Crystallinity

AbstractStrenuous efforts have been employed to prepare zinc oxide (ZnO) with eco-friendly methods; however, few studies have reported the fabrication of ZnO using a sustainable procedure. In this study, spherical ZnO nanoparticles were successfully fabricated for photocatalysis applications using a simple and eco-friendly method using an arabinose sugar solution. The ZnO nanoparticles with a wurtzite structure were obtained by combining zinc nitrate and arabinose in water, followed by heating, evaporation, and calcinations at different annealing temperatures. The annealed ZnO photocatalysts were characterised via X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The findings revealed a hexagonal wurtzite structure and good crystallinity with crystallite size increasing from 18 to 31 nm by means of an increase in the annealing temperature. The photocatalytic performance was examined to determine the degradation of mix dye waste. The spherical ZnO nanoparticles showed mix pollutant degradation of 84 % in 25 min at 400 °C.

Enhancing visible light photocatalytic performance with N-doped TiO2 nanotube arrays assisted by H2O2

2019 ◽  
Vol 33 (01n03) ◽  
pp. 1940025 ◽  
Author(s):  
Chao Xiong ◽  
Shengsen Zhang ◽  
Yu Zhao ◽  
Min Zheng ◽  
Dongdong Hou ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Performance ◽  
Organic Pollutant ◽  
Electrochemical Anodization ◽  
Nanotube Arrays ◽  
Pollutant Degradation ◽  
Organic Pollutant Degradation ◽  
Acid Orange Ii ◽  
Photocatalytic Material ◽  
Visible Light Photocatalytic

N-doped TiO2 nanotube arrays were prepared by an electrochemical anodization method and subsequent ammonia annealing. Microstructures, morphology, optical properties and photocatalytic properties of the N-doped TiO2 nanotube arrays were measured and analyzed. In the degradation of Acid Orange II(AO-II), the photocatalytic degradation efficiency of the N-doped TiO2 nanotube arrays assisted by H2O2 are 12 times, 2 times and 5 times higher than TiO2 nanotube arrays, TiO2 nanotube arrays assisted by H2O2 and H2O2, respectively. Experimental results show that the N-doped TiO2 nanotube arrays is a promising photocatalytic material for organic pollutant degradation under visible light, especially under the assistance of H2O2.

scholarly journals Influence of different bismuth oxyhalides on the photocatalytic activity of graphitic carbon nitride: a comparative study under natural sunlight

2020 ◽  
Vol 1 (5) ◽  
pp. 1262-1272 ◽  
Author(s):  
Mahender Singh ◽  
Ashish Kumar ◽  
Venkata Krishnan
Keyword(s):  
Photocatalytic Activity ◽  
Charge Transfer ◽  
Comparative Study ◽  
Carbon Nitride ◽  
Photocatalytic Performance ◽  
Organic Pollutant ◽  
Graphitic Carbon Nitride ◽  
Pollutant Degradation ◽  
Organic Pollutant Degradation ◽  
Bismuth Oxyhalides

The BiOX/g-C3N4 composites showed enhanced photocatalytic performance towards organic pollutant degradation owing to the boosted charge transfer over the binary interfaces.

Solar light active plasmonic Au@TiO2 nanocomposite with superior photocatalytic performance for H2 production and pollutant degradation

2018 ◽  
Vol 42 (13) ◽  
pp. 10958-10968 ◽  
Author(s):  
Supriya K. Khore ◽  
Sunil R. Kadam ◽  
Sonali D. Naik ◽  
Bharat B. Kale ◽  
Ravindra S. Sonawane
Keyword(s):  
Photocatalytic Performance ◽  
Au Nanoparticles ◽  
Sol Gel ◽  
H2 Production ◽  
Solar Light ◽  
Pollutant Degradation ◽  
Gel Method ◽  
Sol Gel Method

Spherically shaped plasmonic Au nanoparticles (NPs) of size 10 nm (±4 nm) have been decorated on TiO2 NPs for the synthesis of Au@TiO2 composites via an aqueous sol–gel method.

Unique 1D/3D K2Ti6O13/TiO2 micro-nano heteroarchitectures: controlled hydrothermal crystal growth and enhanced photocatalytic performance for water purification

2019 ◽  
Vol 9 (24) ◽  
pp. 7023-7033 ◽  
Author(s):  
Qiang Wang ◽  
Chenming Fan ◽  
Guomin Li ◽  
Jiangshui Luo ◽  
Bing Li
Keyword(s):  
Crystal Growth ◽  
Water Purification ◽  
Photocatalytic Performance ◽  
Pollutant Degradation ◽  
Hydrothermal Route ◽  
Hydrothermal Crystal Growth

Unique 1D/3D K2Ti6O13/TiO2 micro-nano heteroarchitectures with enhanced photocatalytic performance for pollutant degradation were successfully fabricated through a controlled hydrothermal route.

scholarly journals g-C3N4 Homophase Junction With High Crystallinity Using MoS2 as Cocatalyst For Robust Visible-Light-Driven Photocataly Tic Pollutant Degradation

2021 ◽  
Author(s):  
Ying Liu ◽  
Jun Han ◽  
Xianpeng Zeng ◽  
Zongju Tian ◽  
Feifan Yu ◽  
...  
Keyword(s):  
Pollution Control ◽  
Photocatalytic Performance ◽  
Pollutant Degradation ◽  
Composite Photocatalyst ◽  
Co Catalyst ◽  
Simple Strategy ◽  
Ultrasonic Assisted ◽  
Visible Light Driven ◽  
Degradation Ability ◽  
Huge Challenge

Abstract g-C3N4 photocatalyst has attracted great attention in environmental pollution control, but how to further improve its photoactivity is still a huge challenge. Herein, we have developed a simple strategy, by simultaneously improving the photocatalytic performance of g-C3N4 itself by recrystallization method, introducing the promoter MoS2 to form a g-C3N4/g-C3N4/MoS2 composite photocatalyst. Various characterization results show that the homophase junction g-C3N4 prepared by the double-precursor recrystallization treatment improves the crystallinity of the catalyst, and the cocatalyst MoS2 is introduced into the interlayer of g-C3N4 by the ultrasonic-assisted oil bath method to form a stable composite photocatalyst, and the closely contacting interface effectively promotes charge transfer. The optimized photocatalyst g-C3N4/g-C3N4/MoS2 displayed excellent photodegradation performance for methyl orange (k=0.08700 min-1), it shows 6.03 times enhancement of photocatalytic activity for degradation rate compared to homophase junction g-C3N4. In order to test its superior photocatalytic performance, g-C3N4/g-C3N4/MoS2 can be used to degrade other organic pollutants, all of which can show high photocatalytic degradation ability (rhodamine B (k=0.38963 min-1)). This research highlights a feasible strategy for the introduction of co-catalyst engineering to develop excellent photocatalysts.

Facile template-free synthesis of new α-MnO2 nanorod/silver iodide p–n junction nanocomposites with high photocatalytic performance

2020 ◽  
Vol 44 (18) ◽  
pp. 7401-7411 ◽  
Author(s):  
Hadi Salari ◽  
Mona Kohantorabi
Keyword(s):  
Silver Iodide ◽  
Photocatalytic Performance ◽  
High Efficiency ◽  
Organic Pollutant ◽  
Pollutant Degradation ◽  
Organic Pollutant Degradation ◽  
Template Free ◽  
Performance And Mechanism

High-efficiency photocatalytic performance and mechanism of MnO2/AgI for organic pollutant degradation.

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