Synthesis of surface molecularly imprinted poly-o-phenylenediamine/TiO2/carbon nanodots with a highly enhanced selective photocatalytic degradation of pendimethalin herbicide under visible light

2020 ◽  
Vol 151 ◽  
pp. 104580 ◽  
Author(s):  
Azita Shahnazi ◽  
Mohammad Reza Nabid ◽  
Roya Sedghi
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Carbon Nanodots ◽  
Molecularly Imprinted

Molecularly Imprinted TiO2/WO3-Coated Magnetic Nanocomposite for Photocatalytic Degradation of 4-Nitrophenol Under Visible Light

2016 ◽  
Vol 69 (6) ◽  
pp. 638 ◽  
Author(s):  
Shoutai Wei ◽  
Hualong Liu ◽  
Chiyang He ◽  
Ying Liang
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Fe3o4 Nanoparticles ◽  
Photoelectron Spectroscopy ◽  
Sol Gel ◽  
Energy Resource ◽  
Precipitation Method ◽  
Adsorption Ability ◽  
Molecularly Imprinted ◽  
X Ray

In this paper, a molecularly imprinted TiO2/WO3-coated magnetic Fe3O4@SiO2 nanocomposite was developed for photocatalytic degradation. Fe3O4 nanoparticles were first prepared by a traditional co-precipitation method, and then a SiO2 shell was grown on the surface of the Fe3O4 nanoparticles. Finally, a 4-nitrophenol imprinted TiO2/WO3 coating was obtained on the surface of the Fe3O4@SiO2 nanocomposite via a sol-gel method and subsequent calcination. The new composite was characterised by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), high resolution TEM (HRTEM) and vibrating sample magnetometry (VSM). In addition, the adsorption ability and photocatalytic activity of the composite were investigated. Results showed that the imprinted composite had higher adsorption ability for the template than the non-imprinted composite. The imprinted catalyst could degrade 4-nitrophenol under visible light with a first-order reaction rate of 0.1039 h–1, which was ~2.5 times that of the non-imprinted catalyst. The new imprinted catalyst showed good catalytic selectivity, an ease of being recycled by an external magnetic field, good reusability, no need for additional chemicals, and allows the possibility of utilising solar light as energy resource. Therefore, the catalyst can be potentially applied for ‘green’, low-cost and effective degradation of 4-nitrophenol in real wastewater.

scholarly journals A dual surface inorganic molecularly imprinted Bi2WO6-CuO/Ag2O heterostructure with enhanced activity-selectivity towards the photocatalytic degradation of target contaminants

2020 ◽  
Vol 19 (7) ◽  
pp. 943-955 ◽  
Author(s):  
Maryam Amiri ◽  
Kheibar Dashtian ◽  
Mehrorang Ghaedi ◽  
Soleiman Mosleh
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Molecularly Imprinted ◽  
Enhanced Activity

The proposed mechanism reveals that under visible light, MG and AO dyes can be selectively degraded by produced radicals at the surface of the inorganic molecularly imprinted Ag2O-CuO-Bi2WO6 heterojunction.

Effect of reaction temperature on properties of carbon nanodots and their visible-light photocatalytic degradation of tetracyline

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75711-75721 ◽  
Author(s):  
Qiong Wu ◽  
Wei Li ◽  
Peng Wu ◽  
Jian Li ◽  
Shouxin Liu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Crystal Structures ◽  
Reaction Temperature ◽  
Hydrothermal Process ◽  
Carbon Nanodots ◽  
Visible Light Photocatalytic

Carbon nanodots with diverse sizes, crystal structures, optical properties and can be used as photosensitizer were synthesized via hydrothermal process.

Visible Light Active Ce-doped TiO2 Nanoparticles for Photocatalytic Degradation of Methylene Blue

2016 ◽  
Vol 13 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Rani P. Barkul ◽  
Farah-Naaz A. Shaikh ◽  
Sagar D. Delekar ◽  
Meghshyam K. Patil
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Tio2 Nanoparticles ◽  
Doped Tio2 ◽  
Visible Light Active

scholarly journals Fabrication of AgCl/Ag3PO4/graphitic carbon nitride heterojunctions for enhanced visible light photocatalytic decomposition of methylene blue, methylparaben and E. coli

RSC Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 6383-6394 ◽  
Author(s):  
Haishuai Li ◽  
Linlin Cai ◽  
Xin Wang ◽  
Huixian Shi
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Light Irradiation ◽  
Graphitic Carbon Nitride ◽  
Photocatalytic Decomposition ◽  
E Coli ◽  
Visible Light Photocatalytic

A noval ternary nanocomposite AgCl/Ag3PO4/g-C3N4 was successfully synthesized for photocatalytic degradation of methylene blue, methylparaben and inactivation of E. coli under visible light irradiation, showing excellent photocatalytic degradation performance and stability.

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