Laser-Ablated ZnO Nanoparticles and Their Photocatalytic Activity toward Organic Pollutants

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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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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Sunlight-driven enhanced photocatalytic activity of bandgap narrowing Sn-doped ZnO nanoparticles

Environmental Science and Pollution Research ◽

10.1007/s11356-020-11763-3 ◽

2021 ◽

Author(s):

Nachimuthu Venkatesh ◽

Santhan Aravindan ◽

Karuppathevan Ramki ◽

Govindhasamy Murugadoss ◽

Rangasamy Thangamuthu ◽

...

Keyword(s):

Photocatalytic Activity ◽

Zno Nanoparticles ◽

Bandgap Narrowing ◽

Doped Zno

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Enhanced visible-light photocatalytic activity and recyclability of magnetic core-shell Fe3O4@SiO2@BiFeO3–sepiolite microspheres for organic pollutants degradation

Journal of Molecular Liquids ◽

10.1016/j.molliq.2021.116566 ◽

2021 ◽

pp. 116566

Author(s):

Gang Su ◽

Lihua Liu ◽

Qiujuan Kuang ◽

Xing Liu ◽

Wenhao Dong ◽

...

Keyword(s):

Photocatalytic Activity ◽

Visible Light ◽

Organic Pollutants ◽

Magnetic Core ◽

Core Shell ◽

Visible Light Photocatalytic Activity ◽

Visible Light Photocatalytic

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A review on TiO2-based composites for superior photocatalytic activity

Reviews in Inorganic Chemistry ◽

10.1515/revic-2020-0025 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Wail Al Zoubi ◽

Abbas Ali Salih Al-Hamdani ◽

Baek Sunghun ◽

Young Gun Ko

Keyword(s):

Photocatalytic Activity ◽

Organic Pollutants ◽

Cost Efficiency ◽

High Stability ◽

Photocatalytic Oxidation ◽

Oxidation Process ◽

Ambient Conditions ◽

Photoelectrochemical Activity ◽

As Doping ◽

Degradation Of Pollutants

Abstract Heterogeneous photocatalysts was a promising material for removing organic pollutants. Titanium dioxide (TiO2) was a suitable photocatalyst for its cost efficiency and high stability to reduce various pollutants. Enhancing TiO2 photocatalyst performance by doping with changed metals or non-metal ions and organic compounds have been reviewed. These methods could enhance photoelectrochemical activity via: (i) by a donor of electrons via electron-donor agents that would produce particular defects in TiO2 structure and capture transporters of charge; (ii) by reducing recombination rate of the charge transporters and increasing degradation of pollutants. This study investigates the modification approaches of TiO2 that comprise methods for overcoming the essential TiO2 restrictions and enhancing the photocatalytic degradation of organic pollutants. Consequently, it emphasized on the current progress of modified-TiO2 used for different pollutants in ambient conditions. Amendment techniques, such as inorganic and organic parts as doping, are studied. The reported experimental results obtained with the photocatalytic oxidation process for degrading organic pollutants were also collected and assessed.

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