Photocatalytically active ZnO flaky nanoflowers for environmental remediation under solar light irradiation: effect of morphology on photocatalytic activity

Nickel oxide (NiO) thin films were successfully deposited by sol-gel dip-coating method on glass substrates. The structural, morphological and optical properties in addition to the photocatalytic activity of the prepared films were investigated. The results show that the films have a polycrystalline NiO cubic structure with dense NiO grains and average optical transmittance in the visible region. The photocatalytic properties of the films were studied through the degradation of methylene blue and 89% of degradation was achieved for 4.5h of solar light irradiation exposure which indicates the capability of NiO photocatalytic activity.

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EFFECT OF OPERATIONAL PARAMETER ON PHOTOCATALYTIC DEGRADATION OF OXAMYL PESTICIDE

International Journal of Engineering Technologies and Management Research ◽

10.29121/ijetmr.v4.i12.2017.595 ◽

2020 ◽

Vol 4 (12) ◽

pp. 74-84

Author(s):

Brijesh Pare ◽

Satish Piplode ◽

Vaishali Joshi

Keyword(s):

Photocatalytic Activity ◽

Photocatalytic Degradation ◽

Room Temperature ◽

Light Irradiation ◽

Solar Light ◽

X Ray Diffraction ◽

Operational Parameter ◽

X Ray ◽

Solar Light Irradiation ◽

Scanning Electron

Flower like bismuth oxy chloride (BiOCl) was successfully synthesized by a simple hydrolytic method at room temperature. The precursor and as-prepared samples were characterized by X-ray diffraction (XRD), High Resolution Field Emission Scanning Electron Microscope (HR FESEM). The results indicated that the as-prepared BiOCl sample is self-assembled hierarchically with nano sheets. The photocatalytic activity of BiOCl was tested on the degradation of the Oxamyl (OM) under solar light irradiation. The results showed that pesticide molecules could be efficiently degraded over BiOCl under solar light irradiation. All the experiment were carried out in the following reaction condition, [OM] = 10-4 mol dm-3, BiOCl NPs= 40mg/50ml, pH= 6.3. Effect of operational parameter such as concentration of H2O2, K2S2O8, FeCl3, Fenton’s reagent (Fe3+/H2O2) and N2, O2 purging on the photocatalytic degradation was observed.

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Novel chromium doped perovskites A2ZnTiO6 (A = Pr, Gd): Synthesis, crystal structure and photocatalytic activity under simulated solar light irradiation

Applied Surface Science ◽

10.1016/j.apsusc.2016.10.038 ◽

2017 ◽

Vol 393 ◽

pp. 348-356 ◽

Cited By ~ 10

Author(s):

Hekai Zhu ◽

Minghao Fang ◽

Zhaohui Huang ◽

Yan’gai Liu ◽

Kai Chen ◽

...

Keyword(s):

Crystal Structure ◽

Photocatalytic Activity ◽

Light Irradiation ◽

Solar Light ◽

Simulated Solar Light ◽

Solar Light Irradiation

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Solar light efficient photocatalytic activity degradation of emergent contaminants by coated TiO2 nanoparticles

New Journal of Chemistry ◽

10.1039/c8nj02332h ◽

2018 ◽

Vol 42 (18) ◽

pp. 15405-15412 ◽

Cited By ~ 2

Author(s):

María Emilia Villanueva ◽

Guillermo Javier Copello ◽

Viviana Campo Dall’Orto

Keyword(s):

Photocatalytic Activity ◽

Aqueous Solutions ◽

Photocatalytic Degradation ◽

Tio2 Nanoparticles ◽

Light Irradiation ◽

Solar Light ◽

Solar Light Irradiation

The photocatalytic degradation of different emergent contaminants in aqueous solutions has been studied by using oligomer-coated TiO2 nanoparticles under solar light irradiation.

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Nonmetal–metal–semiconductor-promoted P/Ag/Ag2O/Ag3PO4/TiO2 photocatalyst with superior photocatalytic activity and stability

Journal of Materials Chemistry A ◽

10.1039/c5ta05153c ◽

2015 ◽

Vol 3 (34) ◽

pp. 17858-17865 ◽

Cited By ~ 59

Author(s):

Xiaohong Hu ◽

Qi Zhu ◽

Xinlong Wang ◽

Naoki Kawazoe ◽

Yingnan Yang

Keyword(s):

Photocatalytic Activity ◽

Sol Gel ◽

Light Irradiation ◽

Solar Light ◽

Tio2 Photocatalyst ◽

Photocatalytic Ability ◽

Composite Photocatalyst ◽

Gel Method ◽

Simulated Solar Light ◽

Solar Light Irradiation

P/Ag/Ag2O/Ag3PO4/TiO2 composite photocatalyst has been successfully prepared by a sol–gel method. It shows highly enhanced photocatalytic ability and stability under simulated solar light irradiation.

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Crystal Structure, Photoelectrochemical Properties and Photocatalytic Activity of N,S TiO2 Films Supported on Titanium Metal Meshes under Simulated Solar Light Irradiation

ECS Meeting Abstracts ◽

10.1149/ma2018-02/54/1954 ◽

2018 ◽

Keyword(s):

Crystal Structure ◽

Photocatalytic Activity ◽

Light Irradiation ◽

Solar Light ◽

Photoelectrochemical Properties ◽

Tio2 Films ◽

Titanium Metal ◽

Simulated Solar Light ◽

Solar Light Irradiation ◽

Metal Meshes

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Thickness Effect of Zno Film on the Performance of Photocatalytic in a p-Nio/n-Zno Heterostructure under Solar Light Irradiation

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.62.87 ◽

2020 ◽

Vol 62 ◽

pp. 87-95

Author(s):

Hichem Farh ◽

Abdelouahab Noua ◽

Rebai Guemini ◽

Djamal Eldine Guitoume ◽

Oussama Zaoui

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Degradation Rate ◽

Visible Region ◽

Light Irradiation ◽

Thickness Effect ◽

Solar Light ◽

Zno Films ◽

Zno Film ◽

Solar Light Irradiation

In this work, we studied the ZnO film thickness effect on the photocatalytic performance of n-ZnO/p-NiO heterostructures. The ZnO and NiO films were prepared by sol-gel dip-coating technique and the thickness of the ZnO film was varied by changing the number of coatingsfrom 2 to12. The formation of the p-NiO/n-ZnO heterostructure was confirmed by X ray diffraction (XRD). The obtained ZnO films present a wurtzite structure with a preferred orientation along (002) direction while the NiO film present a cubic structure highly oriented along (200) direction. UV-visible transmittance spectra of the prepared heterostructures revealed a good transparency in the visible region. The photocatalytic propertiesof the n-ZnO/p-NiO heterostructures were investigated by measuring the degradation rate of methylene blue. All the samples exhibit a good photocatalytic activity under solar light irradiation. The photocatalytic activity of p-NiO/n-ZnO heterostructureswas strongly correlated with the number of ZnO coatings. The highest photocatalytic activity was obtained at 6 coatings with a degradation rate of methylene blue equal to 98.67% for 4.5h of irradiation.

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