Morphology and luminescent properties of SrMoO4:Eu3+, Dy3+

Zhang, L. Y.; Fu, Wanlin; Zheng, Ganhong; Dai, Zhaoxin; Zhu, Ya Nan; Mu, Jingjing

doi:10.1007/s10854-016-4409-5

Cited by 23 publications

(17 citation statements)

References 20 publications

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“…However, different types of host materials were studied and oxide-based materials were of significant interest because of their lower toxicity and robustness 11 . Metal molybdates of general formula AMoO 4 (A = Ca, Sr, Ba) are one of the oxide-based host materials which give excellent luminescent properties due to the property of energy transfer from host lattice to the dopant ions 12, 13 . Among these metal molybdates, CaMoO 4 is one of the host materials which belong to the scheelite family having tetragonal structure with a space group of I41/a.…”

Section: Introductionmentioning

confidence: 99%

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Bharat

Raju

2017

Sci Rep

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We report the synthesis of spherical-shaped rare-earth (Eu3+ and Tb3+) ions doped CaMoO4 nanoparticles in double solvents (IPA and H2O) with the help of autoclave. The X-ray diffraction patterns well match with the standard values and confirm the crystallization in a tetragonal phase with an I41/a (88) space group. The luminescence spectra exhibit the strong red and green emissions from Eu3+ and Tb3+ ions doped samples, respectively. The X-ray photoelectron spectroscopy results show the oxidation states of all the elements present in the sample. The temperature-dependent luminescence spectra reveal the stability of Eu3+ and Tb3+ ions doped samples. The red- and green-emitting Eu3+ and Tb3+ ions doped CaMoO4 samples were used for detection and enhancement of latent fingerprints which are the common evidences found at crime scenes. The enhanced latent fingerprints obtained on different surfaces have high contrast with low background interference. The minute details of the fingerprint which are useful for individualization are clearly observed with the help of these nanopowders.

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Section: Introductionmentioning

confidence: 99%

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Bharat

Raju

2017

Sci Rep

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“…Graphite phase carbon nitride (g-C 3 N 4 ) possesses a 2Dlayered structure similar to graphite carbon and graphene, consisting of carbon and nitrogen atoms sp2 conjugate skeleton structure. [29][30][31][32][33][34][35] Although layered g-C 3 N 4 are connected by van der Waals force and possess the structural stability in photoredox reaction, the photocatalytic performances of g-C 3 N 4 are not satisfied because of its lower specific surface area and limited surface reaction sites. Among the many modification strategies of g-C 3 N 4 , the construction of heterojunction with other semiconductors is considered to be a very effective and feasible strategy to improve the photocatalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Nb–O–C Charge Transfer Bridge in 2D/2D Nb₂O₅/g‐C₃N₄ S‐Scheme Heterojunction for Boosting Solar‐Driven CO₂ Reduction: In Situ Illuminated X‐Ray Photoelectron Spectroscopy Investigation and Mechanism Insight

et al. 2022

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Although the construction of heterojunction photocatalysts is a promising way to achieve outstanding photocatalytic activities, a 2D heterojunction which possesses strong chemical bonding and appropriate interfacial contact toward efficient artificial photosynthesis is still a challenge. Herein, 2D/2D Nb2O5/g‐C3N4 S‐scheme heterojunction photocatalysts are successfully fabricated by a convenient in situ calcination route derived from niobic acid/urea precursor for the gas–solid CO2 reduction reaction. Under simulated solar irradiation, the total yield of C1 products (CH4 and CO) obtained on the optimized sample NOCN‐5 are 6.7 times and 5.3 times that over pristine Nb2O5 and g–C3N4 nanosheets, respectively, without sacrificial agent or cocatalysts. The enhanced performances of CO2 photoreduction might be attributed to the unique Nb─O─C chemical bonds induced charge transfer bridge, face‐to‐face contact, and the efficient S‐scheme transfer path of photoinduced electron–hole pairs, which is confirmed by in situ illuminated X‐ray photoelectron spectroscopy and density functional theory calculation. This work will provide a promising strategy for constructing S‐scheme heterojunction systems for efficient artificial photosynthesis reactions toward carbon neutrality.

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“…Moreover, within the sol-gel method, different conditions of synthesis influencing the final products are very important parameters such as complexing and chelating agents, dopant concentration, pH value of solution and annealing temperature. The pH value of the solution plays a crucial role and its change can cause some alteration in structural, the morphological and spectroscopic properties [31,32].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of GdBO3:Eu3+ nanophosphors via acetylacetone assisted aqueous sol–gel route: Effect of some synthesis parameters

Seraiche¹,

Guerbous

Mahiou

et al. 2020

Optical Materials

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Nano-sized Eu 3+ -doped GdBO 3 vaterite type nanophosphors have been synthesized successfully via acetylacetone assisted aqueous sol-gel route. Systematic investigation of the influence of Eu 3+ ion content and pH value of the suspension of precursors on structural, morphological and luminescence spectroscopic properties has been performed. X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission-scanning electron microscopy (FE-SEM), Thermogravimetric and differential thermal gravimetry (TG/DTA), room temperature steady and time resolved photoluminescence (PL) spectroscopy techniques were employed to characterize the obtained powder samples. It has been found that the Eu 3+ ion content and pH value precursors suspension have important effect on the structural, morphology and emission properties. The XRD analysis reveals that GdBO 3 : 10% mol Eu 3+ synthesized at pH = 2 and pH = 10 exhibit the quasi-purest P6 3 /mmc vaterite structure. The vibrational absorption of (BO 3 ) 3group is assigned to the GdBO 3 with calcite type or other vaterite structure namely triclinic and monoclinic. The morphologies of GdBO 3 particles size increases with increasing of pH value. All sample present only the orange-red colors emission from 5 D 0 levels to the 7 F J levels (J = 0-3) of Eu 3+ ion. Furthermore, it was found that 10% concentration of Eu 3+ presents the quenching of emission in GdBO 3 . Also, it was that the emission intensity was affected by the pH value and sample with pH = 10 exhibits the highest emission intensity. The asymmetry ratio parameter R between red M. Seraiche a, *

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Morphology and luminescent properties of SrMoO4:Eu3+, Dy3+

Cited by 23 publications

References 20 publications

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Nb–O–C Charge Transfer Bridge in 2D/2D Nb₂O₅/g‐C₃N₄ S‐Scheme Heterojunction for Boosting Solar‐Driven CO₂ Reduction: In Situ Illuminated X‐Ray Photoelectron Spectroscopy Investigation and Mechanism Insight

Synthesis of GdBO3:Eu3+ nanophosphors via acetylacetone assisted aqueous sol–gel route: Effect of some synthesis parameters

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Morphology and luminescent properties of SrMoO4:Eu3+, Dy3+

Cited by 23 publications

References 20 publications

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Red and green colors emitting spherical-shaped calcium molybdate nanophosphors for enhanced latent fingerprint detection

Nb–O–C Charge Transfer Bridge in 2D/2D Nb2O5/g‐C3N4 S‐Scheme Heterojunction for Boosting Solar‐Driven CO2 Reduction: In Situ Illuminated X‐Ray Photoelectron Spectroscopy Investigation and Mechanism Insight

Synthesis of GdBO3:Eu3+ nanophosphors via acetylacetone assisted aqueous sol–gel route: Effect of some synthesis parameters

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Nb–O–C Charge Transfer Bridge in 2D/2D Nb₂O₅/g‐C₃N₄ S‐Scheme Heterojunction for Boosting Solar‐Driven CO₂ Reduction: In Situ Illuminated X‐Ray Photoelectron Spectroscopy Investigation and Mechanism Insight