Facile solution combustion synthesized, Li doped ZnO nanostructures for removal of abiotic contaminants

Yadav, Sushma; Jindal, Jitender; Mittal, Anuj; Sharma, Shankar; Kumari, Kavitha; Kumar, Naveen

doi:10.1016/j.jpcs.2021.110217

Cited by 22 publications

(8 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ZnO nanostructures were demonstrated to be interesting photocatalysts, and they showed acceptable photocatalytic degradation of methylene blue (MB). In studies of combustion methods, synthesized ZnO NPs have been presented for use as photocatalysts [ 19 , 20 , 21 ]. Although the ZnO NPs were prepared at different temperatures, there were similar hexagonal wurtzites.…”

Section: Introductionmentioning

confidence: 99%

Comparison of ZnO Nanoparticles Prepared by Precipitation and Combustion for UV and Sunlight-Driven Photocatalytic Degradation of Methylene Blue

Krobthong

Rungsawang

Wongrerkdee

2023

Toxics

View full text Add to dashboard Cite

ZnO nanoparticles (NPs) were comparatively synthesized via precipitation and combustion techniques. The ZnO NPs synthesized via precipitation and combustion exhibited similar polycrystalline hexagonal wurtzite structures. The large crystal sizes of ZnO NPs were obtained from the ZnO precipitation in comparison with those from the ZnO combustion, while the particle sizes were in the same range. The functional analysis implied that the ZnO structures had surface defects. Moreover, absorbance measurement showed the same absorbance range in ultraviolet light. In the photocatalytic degradation of methylene blue, ZnO precipitation exhibited higher degradation performance than ZnO combustion. This was attributed to the larger crystal sizes of ZnO NPs, which provided an enduring carrier movement at semiconductor surfaces and reduced electron-hole recombination. Thus, the crystallinity of ZnO NPs can be considered an important factor in photocatalytic activity. Furthermore, precipitation is an interesting synthesizing method for preparing ZnO NPs with large crystal sizes.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparison of ZnO Nanoparticles Prepared by Precipitation and Combustion for UV and Sunlight-Driven Photocatalytic Degradation of Methylene Blue

Krobthong

Rungsawang

Wongrerkdee

2023

Toxics

View full text Add to dashboard Cite

show abstract

“…This may lead to a significant deterioration of the crystallinity of the ZnO NPs leading to an observed lower band of Li-doped ZnO NPs. Also, such a change in band gap can be due to the configuration of the grain boundary [43,82]. This is because the band gap energy of ZnO is predominantly responsive to minute variations in free carrier concentration, the configuration of grain boundary, stress, and strain [43,82].…”

Section: Optical Properties 321 Optical Absorption Studiesmentioning

confidence: 99%

“…It is to be mentioned that the properties of Li-doped ZnO nanocrystals, such as the appearance of RTFM, gas sensing behavior, photocatalytic activity, etc., have a high dependence on the lattice defects that are present in the nanocrystal [36,37,43]. In this respect, the synthesis method plays a vital role in the potential application of Li-doped ZnO nanostructures.…”

Section: Introductionmentioning

confidence: 99%

“…In this respect, the synthesis method plays a vital role in the potential application of Li-doped ZnO nanostructures. Synthesis of Li-doped ZnO nanostructures has been achieved through various synthesis procedures such as the sol-gel method [30], simple rapid thermal decomposition [44], chemical synthesis under a constant flow of Argon gas [45], chemical precipitation followed by calcination [36,27], and solution combustion synthesis route [43]. Each method has its own advantages and limitations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural, optical, and antibacterial properties of Li-doped ZnO nanoparticles synthesized in water: evidence of incorporation of interstitial Li

Mukherjee¹,

Pramanik²,

Das³

et al. 2022

Phys. Scr.

View full text Add to dashboard Cite

The mode of incorporation of lithium (Li) (as substitution or interstitial position) in zinc oxide (ZnO) has its own importance as far as the potential applications of Li-doped ZnO nanoparticles (NPs) are concerned. Fabrication of p-type ZnO based semiconductors as well as defect engineering based applications demand substitution of Zn2+ by Li+. However, doping of ZnO by Li with interstitial positions can play an important role in controlling the different properties of it. In the present study, we report the successful doping of Li in ZnO NPs up to a Li concentration of 10 mol% employing a simple wet chemical precipitation method in water. Up to a Li concentration of 8 mol%, doping by substitution of Li to the Zn sites have been observed. However, for 10 mol% of Li concentration, doping by incorporation of interstitial sites in addition to the substitution have been confirmed through the complementary characterization techniques. The effects of interstitial Li in ZnO on structural, optical, and antimicrobial properties have been studied in details systematically. For all the cases (structural, optical, and antimicrobial), the properties of Li-doped ZnO NPs have been changed reversibly in the ZnO NPs after incorporation of interstitial sites by Li as compared to the substitution of Li. For example, the microstrain, band gap, and antimicrobial activity have been found to increase with increase in Li concentration up to 8 mol%. However, the microstrain, band gap, and antimicrobial activity are found the decrease for 10 mol% of Li as compared to 8 mol% of Li. This study indicated that the different properties of Li-doped ZnO NPs can be controlled suitably as per the requirements for the practical applications of ZnO based materials.

show abstract

“…21 Coupling ZnO with other metals or metal oxides can improve the performance of ZnO, extend the lifetime of photo-generated electron–hole pairs and achieve visible-light-driven photocatalysts. 22,23 The photocatalyst is a promising alternative for environmental detoxification as well as wastewater decontamination. 24…”

Section: Introductionmentioning

confidence: 99%

Developing efficient CuO nanoplate/ZnO nanoparticle hybrid photocatalysts for methylene blue degradation under visible light

Dien,

Thu Ha,

et al. 2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

Facile solution combustion synthesized, Li doped ZnO nanostructures for removal of abiotic contaminants

Cited by 22 publications

References 46 publications

Comparison of ZnO Nanoparticles Prepared by Precipitation and Combustion for UV and Sunlight-Driven Photocatalytic Degradation of Methylene Blue

Comparison of ZnO Nanoparticles Prepared by Precipitation and Combustion for UV and Sunlight-Driven Photocatalytic Degradation of Methylene Blue

Structural, optical, and antibacterial properties of Li-doped ZnO nanoparticles synthesized in water: evidence of incorporation of interstitial Li

Developing efficient CuO nanoplate/ZnO nanoparticle hybrid photocatalysts for methylene blue degradation under visible light

Contact Info

Product

Resources

About