Enhancing the photocatalytic activity of ZnO nanoparticles for efficient rhodamine B degradation by functionalised graphene nanoplatelets

Zinc oxide (ZnO) nanoparticles prepared using simple co-precipitation method are characterized and photocatalytic activity is tested on the degradation of methylene blue and rhodamine B organic pollutants. Morphological and structural properties of synthesized nanomaterial have been characterized using FESEM, EDAX spectroscopy, and XRD, while UV-visible DRS spectroscopy and photoluminescence have been used to understand their optical properties. The photocatalytic behaviour of synthesized nanoparticles was evaluated on the degradation of methylene blue (MB) and rhodamine B (RhB) organic pollutants under solar light irradiation. The highest degradation was achieved for MB (100%) over RhB (96%). Preliminary investigation shows the effective degradation of organic pollutants by ZnO nanoparticles.

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Sol-gel synthesis of Ba-doped ZnO nanoparticles with enhanced photocatalytic activity in degrading Rhodamine B under UV-A irradiation

Optik ◽

10.1016/j.ijleo.2017.08.059 ◽

2017 ◽

Vol 147 ◽

pp. 143-150 ◽

Cited By ~ 14

Author(s):

Behnaz Shirdel ◽

Mohammad A. Behnajady

Keyword(s):

Photocatalytic Activity ◽

Rhodamine B ◽

Zno Nanoparticles ◽

Sol Gel ◽

Doped Zno ◽

Sol Gel Synthesis

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Facile Solvothermal Synthesis of BiOCl/ZnO Heterostructures with Enhanced Photocatalytic Activity

Journal of Nanomaterials ◽

10.1155/2014/347061 ◽

2014 ◽

Vol 2014 ◽

pp. 1-9 ◽

Cited By ~ 2

Author(s):

Yong-Fang Li ◽

Ming Zhang ◽

Dan-Lu Guo ◽

Fei-Xia He ◽

Ying-Zhu Li ◽

...

Keyword(s):

Photocatalytic Activity ◽

Ethylene Glycol ◽

Uv Irradiation ◽

Rhodamine B ◽

Zno Nanoparticles ◽

Solvothermal Synthesis ◽

Solvothermal Method ◽

Mixed Solvents ◽

Photocatalytic Mechanism

Well-defined nanosheet-assembled (BiOCl)x(ZnO)1−xnanoflowers were synthesized by a solvothermal method. It was found that ZnO nanoparticles were anchored on the flower-like BiOCl nanostructures, as demonstrated by varying the initial compositions of the Bi precursor and the volume ratios of mixed solvents (ethylene glycol to water). The as-prepared (BiOCl)0.6(ZnO)0.4nanocomposites showed enhanced photocatalytic activity toward rhodamine B degradation under ultraviolet (UV) irradiation. And the photocatalytic mechanism was discussed in detail.

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Piezoelectric catalytic, photocatalytic and adsorption capability and selectivity removal of various dyes and mixed dye wastewater by ZnO nanoparticles

Main Group Chemistry ◽

10.3233/mgc-210150 ◽

2022 ◽

pp. 1-19

Author(s):

Shengnan Tang ◽

Huajing Gao ◽

Shifa Wang ◽

Leiming Fang ◽

Xiping Chen ◽

...

Keyword(s):

Particle Size ◽

Photocatalytic Activity ◽

Adsorption Capacity ◽

Rhodamine B ◽

Zno Nanoparticles ◽

Chelating Agent ◽

Catalytic Performance ◽

Wet Chemistry ◽

Dependent Behavior ◽

Internal Mechanism

The C-O functional group decorated ZnO nanoparticles with high UV absorption and VIS/NIR reflectance were synthesized by a simple wet chemistry method using various chelating agents. This study attempts to explore the internal mechanism of the piezoelectric catalytic activity, photocatalytic activity and adsorption performance of ZnO nanoparticles. The phase purity, particle size, optical band gap and photocatalytic activity of ZnO nanoparticles showed strong chelating agent - dependent behavior. The ZnO nanoparticles prepared by using EDTA as a chelating agent exhibits smallest particle size, highest photocatalytic activity for the degradation of methyl orange, methylene blue and rhodamine B, high adsorption capacity for the adsorption of Congo red and high vibration-catalytic performance for the vibration degradation of rhodamine B. The synergies mechanism among piezoelectric catalysis, photocatalysis and adsorption capacity of ZnO nanoparticles are discussed on the basis of the experimental results.

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Photocatalytic Activity of ZnO Nanoparticles on the Degradation of Organic Dyes Under Solar Light

Handbook of Research on Emerging Developments and Environmental Impacts of Ecological Chemistry - Advances in Environmental Engineering and Green Technologies ◽

10.4018/978-1-7998-1241-8.ch019 ◽

2020 ◽

pp. 409-431

Author(s):

Sivakumar Krishnamoorthy ◽

Dharani M.

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Organic Pollutants ◽

Rhodamine B ◽

Zno Nanoparticles ◽

Organic Dyes ◽

Preliminary Investigation ◽

Solar Light ◽

Precipitation Method ◽

Co Precipitation

Zinc oxide (ZnO) nanoparticles prepared using simple co-precipitation method are characterized and photocatalytic activity is tested on the degradation of methylene blue and rhodamine B organic pollutants. Morphological and structural properties of synthesized nanomaterial have been characterized using FESEM, EDAX spectroscopy, and XRD, while UV-visible DRS spectroscopy and photoluminescence have been used to understand their optical properties. The photocatalytic behaviour of synthesized nanoparticles was evaluated on the degradation of methylene blue (MB) and rhodamine B (RhB) organic pollutants under solar light irradiation. The highest degradation was achieved for MB (100%) over RhB (96%). Preliminary investigation shows the effective degradation of organic pollutants by ZnO nanoparticles.

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