Green and chemical synthesized CeO2 nanoparticles for photocatalytic indoor air pollutant degradation

Magudieshwaran, R.; Ishii, Junki; Chandar, N. Krishna; Terashima, Chiaki; Rajendran, V.; Fujishima, Akira; Sudhagar, P.

doi:10.1016/j.matlet.2018.11.172

Cited by 78 publications

(31 citation statements)

References 12 publications

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“…23,25 Moreover, higher cost, laborious downstream processing, lesser biocompatibility, instability, and low yield make them further inefficient. 7,10 There is a growing need to fabricate nanostructures which have the potential to solve these problems. 5,9 Presently, researchers have exploited the green method to overcome all these challenges.…”

Section: Synthesis Of Ceo 2 Npsmentioning

confidence: 99%

“…Green synthesis of CeO 2 nanoparticles was demonstrated using Jatropha curcus leaf extract having high photocatalytic activity and a monodispersed shape of 3-5 nm. 10 Spherical shaped cerium oxide nanoparticles are synthesized using Leaf extract of Oleo Europaea, with a size of 24 nm having high antimicrobial activity against both gram-negative and positive strains of bacteria. 16 Origanum majorana extracts were used to synthesize CeO 2 NPs, having pseudo spherical shape (20 nm).…”

Section: Synthesis Of Ceo 2 Npsmentioning

confidence: 99%

“…Moreover, the NPs obtained with such approaches are toxic and unstable, making them less efficient. 9,10 Thus, recently a safe, less toxic method has been used by researchers known as Green Synthesis. This method utilizes various biological resources such as plants, microbes, or any other biological derivative.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Green Synthesis of Cerium Oxide Nanoparticles (CeO2 NPs) and Their Antimicrobial Applications: A Review

Nadeem¹,

Khan²,

Afridi³

et al. 2020

IJN

171

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During the last decade green synthesized cerium oxide nanoparticles (CeO 2 NPs) attracted remarkable interest in various fields of science and technology. This review, explores the vast array of biological resources such as plants, microbes, and other biological products being used in synthesis of CeO 2 NPs. It also discusses their biosynthetic mechanism, current understandings, and trends in the green synthesis of CeO 2 NPs. Novel therapies based on green synthesized CeO 2 NPs are illustrated, in particular their antimicrobial potential along with attempts of their mechanistic elucidation. Overall, the main objective of this review is to provide a rational insight of the major accomplishments of CeO 2 NPs as novel therapeutics agents for a wide range of microbial pathogens and combating other diseases.

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Section: Synthesis Of Ceo 2 Npsmentioning

confidence: 99%

Section: Synthesis Of Ceo 2 Npsmentioning

confidence: 99%

See 1 more Smart Citation

Green Synthesis of Cerium Oxide Nanoparticles (CeO2 NPs) and Their Antimicrobial Applications: A Review

Nadeem¹,

Khan²,

Afridi³

et al. 2020

IJN

171

View full text Add to dashboard Cite

show abstract

“…These are the reasons why researchers have worked on developing complex structures (heterostructures, composites, doped materials, etc.) able to convert extended UV–Vis (and even Infrared (IR)) spectra as well as to efficiently use the incident photons for the photogeneration of free charge carriers [ 27 , 28 , 29 ].…”

Section: Photocatalysis Mechanisms For Vocs Removalmentioning

confidence: 99%

Volatile Organic Compounds (VOCs) Removal from Indoor Air by Heterostructures/Composites/Doped Photocatalysts: A Mini-Review

Eneşca

Cazan

2020

Nanomaterials

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The impact of volatile organic compounds (VOCs) on indoor air quality and, furthermore, on human health is still a subject of research investigations considering the large increase in forms of cancer and related diseases. VOCs can be 10 times higher in indoor air concentrations then that of the outdoors, as a consequence of emissions from electronics, building materials and consumer goods. Direct transformation of VOCs in mineralization products seems to be an alternative to reduce indoor air contaminants. The advantage of photocatalysis implementation in indoor air treatment is given by the absence of additional chemicals (such as H2O2) and waste. The present mini-review presents a comparative study on VOCs photocatalytic removal considering the photocatalyst composition, morphology and specific surface. The sheet-like morphology seems to provide a higher number of active sites which may contribute to oxidative reactions. The insertion of materials able to increase light absorbance or to mediate the charge carrier’s transport will have a beneficial impact on the overall photocatalytic efficiency. Additionally, surface chemistry must be considered when developing photocatalysts for certain gas pollutants in order to favor molecule absorbance in the interfacial region. An energy consumption perspective is given based on the light intensity and irradiation period.

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“…Recent studies indicate CeO 2 as an effective photocatalyst [6]. Among its main characteristics are the high chemical resistance and the photocorrosion, high capacity of absorption of UV radiation and an excellent capacity of liberation and storage of oxygen [7].…”

Section: Introductionmentioning

confidence: 99%

Study of obtaining thin films of CeO2 doped with 2 and 4 mol% of europium, terbium and thulium by spin coating: photocatalytic properties

Dias

2019

Cerâmica

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In this study, thin films of Eu3+, Tb3+ and Tm3+ doped CeO2 in the proportions of 2 and 4 mol% were obtained by spin coating and calcined at 700 °C. The films were characterized by XRD, SEM, AFM and UV-vis techniques. The photocatalytic activity of the thin films was measured by the degradation of the methylene blue (MB) dye. The thin films were submitted to 4 photocatalytic cycles to analyze the capacity to be reused. XRD patterns showed no secondary phase formation, where all characteristic peaks were related to CeO2. SEM micrographs indicated that doping at 4 mol% promoted the reduction in the thickness and surface porosity of the thin films. AFM images indicated the increase in surface roughness with rare earths doping. Doping with Eu3+, Tb3+ and Tm3+ increased the degradation of the methylene blue dye by at least 15% for thin films doped at 4 mol%. The reuse tests indicated that the photocatalytic activity remained practically constant even with the application of four consecutive cycles.

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Green and chemical synthesized CeO2 nanoparticles for photocatalytic indoor air pollutant degradation

Abstract: Green and chemical synthesized CeO2 nanoparticles for photocatalytic indoor air pollutant degradation.

Cited by 78 publications

References 12 publications

<p>Green Synthesis of Cerium Oxide Nanoparticles (CeO<sub>2</sub> NPs) and Their Antimicrobial Applications: A Review</p>

<p>Green Synthesis of Cerium Oxide Nanoparticles (CeO<sub>2</sub> NPs) and Their Antimicrobial Applications: A Review</p>

Volatile Organic Compounds (VOCs) Removal from Indoor Air by Heterostructures/Composites/Doped Photocatalysts: A Mini-Review

Study of obtaining thin films of CeO2 doped with 2 and 4 mol% of europium, terbium and thulium by spin coating: photocatalytic properties

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