Synthesis and optimization of Dy-doped SrZr4(PO4)6 nanophosphors for plant growth light-emitting diodes

Munirathnam, K.; Ramaraghavulu, R.; Nagajyothi, P.C.; Thiyagaraj, S.; Srinivas, M.

doi:10.1016/j.solidstatesciences.2020.106455

Cited by 25 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low binding energy peak is the characteristic peak belonging to Zn-O bonding [ 43 ], and the higher binding energy peak is an indication of loosely bound oxygen or adsorbed oxygen on the surface of the sample [ 44 ]. The Dy core level spectra consists of two major peaks at 1296.98 and 1335.36 eV, which confirms the Dy ions in the 3+ state in the sample ( Figure 7 d) [ 25 , 45 ]. Overall, the XPS results confirm the presence of OH groups on the surface of the catalyst and the valence states of 2+ and 3+ for Zn and Dy ions.…”

Section: Resultsmentioning

confidence: 59%

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

et al. 2023

View full text Add to dashboard Cite

Antibiotic water contamination is a growing environmental problem in the present day. As a result, water treatment is required for its reduction and elimination. Due to their important role in resolving this issue, photocatalysts have drawn a great deal of interest over the past few decades. When non-biodegradable organic matter is present in polluted water, the photo catalytic process, which is both environmentally friendly and an improved oxidation method, can be an effective means of remediation. In this regard, we report the successful synthesis of pure phased rare earth doped ZnO nanoparticles for tetracycline degradation. The prepared catalysts were systematically characterized for structural, optical, and magnetic properties. The optical band gap was tailored by rare earth doping, with redshift for Sm and Dy doped nanoparticles and blueshift for Nd doped ZnO nanoparticles. The analysis of photoluminescence spectra revealed information about the defect chemistry of all synthesised nanoparticles. Magnetic studies revealed that all synthesized diluted magnetic semiconductors exhibit room temperature ferromagnetism and can be employed for spintronic applications. Moreover, Dy doped ZnO nanoparticles were found to exhibit a maximum degradation efficiency of 74.19% for tetracycline (TCN) removal. The synthesized catalysts were also employed for the degradation of Malachite green (MG), and Crystal violet (CV) dyes. The maximum degradation efficiency achieved was 97.18% for MG and 98% for CV for Dy doped ZnO nanoparticles. The degradation mechanism involved has been discussed in view of the reactive species determined from scavenging experiments.

show abstract

Section: Resultsmentioning

confidence: 59%

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown that blue light (400−500 nm) is necessary for photosynthesis, leaf growth, and stomatal opening; red light (620−690 nm) promotes stem growth; and far-red light (700−740 nm) is beneficial for plant germination. 51 Figure 6 displays representative photographs and the optical transmittance spectra of the prepared films. As shown in Figure 6a,c, the colored logos underneath the films were clearly visible, suggesting the high light transmittance of the films.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…However, not all bands of light have a positive effect on crop photosynthesis. Previous studies have shown that blue light (400–500 nm) is necessary for photosynthesis, leaf growth, and stomatal opening; red light (620–690 nm) promotes stem growth; and far-red light (700–740 nm) is beneficial for plant germination Figure displays representative photographs and the optical transmittance spectra of the prepared films.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Evaluation of an Alginate-Based Dual Network Mulch Film Reinforced with Multiscale Cellulose Fibers

Han,

Wang,

Wang

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

To address the inadequate mechanical strength of alginate-based mulch films, this study presents an innovative approach employing a dual network strategy. The dual network consists of the alginate network cross-linked by gradually released calcium ions from nanometer-sized calcium carbonate and the micronano multiscale fiber network formed by mechanical entanglement and hydrogen bonds between microfibrils. The multiscale fibers were fabricated through a mechanical process with no fiber loss under normal atmospheric pressure. Scanning electron microscopy, transmission electron microscopy, and X-ray diffraction were used to examine the microstructure and crystallinity of the multiscale fibers. The obtained dual-network mulch films showed good characteristics, with optimum mechanical strength, water vapor permeability, and biodegradability. Notably, the stress strength of the mulch film reinforced with the multiscale fibers was approximately ten times greater than the tensile strength of the control film, reaching 84.7 MPa when C FBC was 7.7%. The multiscale fibers present a novel approach for material preparation and reinforcement due to their high yield, low energy consumption, easy preparation process, and good compatibility with other polymers.

show abstract

“…There is a peak of Dy in the inorganic compound introduced by Dy 3+ at 1303.8 ev (3d5/2). [32][33][34][35] Figure 12 shows that Eu 3+ exists apparently at 1136 ev (3d5/2) and 1161.99 ev (3d3/2). [36][37][38][39] 3 shows the bluegreen light under 396 nm irradiation.…”

Section: Resultsmentioning

confidence: 99%

Preparation, Photochromism, and Luminescence Principle of BMS: Dy³⁺, Eu³⁺ Ceramics

Wang

Zhang

2022

Crystal Research and Technology

View full text Add to dashboard Cite

A series of barium magnesium silicate (BaMgSiO 4 ) compounds 1-6 are synthesized successfully, which show property of down conversion fluorescent materials. The photochromic properties and fluorescence intensity of these materials depend on the relative content of Eu and Dy. The photoluminescence excitation spectroscopy spectrum of 4 shows that the emission spectrum has a broad band at 396 nm, which is the maximum excitation wavelength. At the wavelength of 396 nm, The photoluminescence (PL) spectra of 3 and 4 show a broad emission peak at 476 and 610 nm, respectively. 3 and 4 show blue-green fluorescence under UV irradiation, while the luminescent intensity of 3 is slightly higher than 4. The X-ray photoelectron spectra of 3 show Dy 3+ and Eu 3+ , while the electron paramagnetic resonance spectra of 3 and 4 show oxygen vacancies.Research data are not shared.

show abstract

Synthesis and optimization of Dy-doped SrZr4(PO4)6 nanophosphors for plant growth light-emitting diodes

Cited by 25 publications

References 34 publications

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Fabrication and Evaluation of an Alginate-Based Dual Network Mulch Film Reinforced with Multiscale Cellulose Fibers

Preparation, Photochromism, and Luminescence Principle of BMS: Dy³⁺, Eu³⁺ Ceramics

Contact Info

Product

Resources

About

Synthesis and optimization of Dy-doped SrZr4(PO4)6 nanophosphors for plant growth light-emitting diodes

Cited by 25 publications

References 34 publications

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Rare Earth Doped ZnO Nanoparticles as Spintronics and Photo Catalyst for Degradation of Pollutants

Fabrication and Evaluation of an Alginate-Based Dual Network Mulch Film Reinforced with Multiscale Cellulose Fibers

Preparation, Photochromism, and Luminescence Principle of BMS: Dy3+, Eu3+ Ceramics

Contact Info

Product

Resources

About

Preparation, Photochromism, and Luminescence Principle of BMS: Dy³⁺, Eu³⁺ Ceramics