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2301
Ultrasound and Microwave Coassisted Synthesis and Luminescent Properties of (Ln = La, Gd; ) Phosphors
Published 2013-01-01“…Their crystal structures and morphologies which have been verified by X-ray diffraction (XRD) and scanning electron microscopy (SEM) exhibited gradual changes due to the insertion of lanthanide ions (La or Gd) in calcium molybdates. Codoping of lanthanum ions () would enhance the emission intensities that were supported by fluorescent spectrophotometry (FL).…”
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2302
Lanthanum Influence on EuAlO3 Perovskite Structural Properties: Experimental and Molecular Dynamics Studies
Published 2012-01-01“…Experimental and simulation results show that local changes in the perovskite-like structure can be achieved as lanthanum ions substitute europium ones. The introduction of La3+ ions in the EuAlO3 parent causes an increase in the mobility of oxygen network.…”
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2303
Er<sup>3+</sup>,Yb<sup>3+</sup>:YGdSiO<sub>5</sub> Crystal as Gain Media for Lasers Emitting in the Spectral Range of 1.5–1.6 µm
Published 2022-04-01“…The energy transfer efficiency from ytterbium to erbium ions was estimated. The stimulated emission and gain cross-section spectra for Er3+ ions in YGSO were calculated.…”
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2304
Development and Characterization of Carbon-Based Adsorbents Derived from Agricultural Wastes and Their Effectiveness in Adsorption of Heavy Metals in Waste Water
Published 2022-01-01“…The biochars with the high surface area were employed to adsorb Pb2+ (lead) ions, the heaviest pollutants in the water bodies. …”
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2305
Synthesis and Structural Studies of First Row Transition Metal Complexes with Tetradentate ONNO Donor Schiff Base Derived from 5-Acetyl 2,4-dihydroxyacetophenone and Ethylenediami...
Published 2011-01-01“…The Schiff base binds to metal ions in bis-multidentate ONNO mode leading to two dimensional Schiff base polymers. …”
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2306
Determinação voltamétrica de Cu(II), Pb(II), Cd(II) e Zn(II) em amostra ambiental certificada e avaliação multivariada de mistura de Pb(II), Tl(I) e Cd(II) com ondas sobrepostas...
Published 2023-02-01“…Na segunda etapa, utilizou-se a calibração multivariada para a determinação quantitativa individual das espécies químicas eletroativas Pb(II), Cd(II) e Tl(I) que apresentam ondas voltamétricas parcialmente sobrepostas. Na determinação dos íons Cd(II), Pb(II), Zn(II) e Cu(II) as ondas voltamétricas se apresentaram bem distintas dentro da faixa de potencial trabalhada e as adições de padrão mostraram linearidade frente ao aumento de concentração dos íons. …”
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2307
Defect state enhanced nonlinear absorption and optical limiting behaviour of erbium doped silver molybdate nanostructures
Published 2025-01-01“…The proper incorporation of Er ions into the Ag2MoO4 lattice without altering the crystal structure was confirmed by XRD Analysis. …”
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2308
Preparation of Copper Nanoparticles/Diatomite Nanocomposite for Improvement in Water Quality of Fishponds
Published 2022-01-01“…Diatomite (DA) with the main component of silica (SiO2) was chemically modified by amine groups of the coupling agent 3-amino propyl triethoxysilane (APTES) before deposition of Cu2+ ions. The mixture of DA-APTES and Cu2+ ions in the chitosan stabilizer (1%) was added with ascorbic acid and purged oxygen by N2O for antioxidation before irradiation. …”
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2309
Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method
Published 2025-02-01“…Enhanced analyses of the luminescence mechanism of lanthanoid ions in various host compounds, which have captivated researchers for many years and culminated in the development of innovative materials for optical applications. …”
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2310
Determination of Alkaloids and Flavonoids in Sophora flavescens by UHPLC-Q-TOF/MS
Published 2021-01-01“…This study is based on UHPLC-Q-TOF/MS and fragment ions to achieve classification and identification of alkaloids and flavonoids in Sophora flavescens. …”
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2311
Development of simplified treatment methods for removal of Ra-226 and Ra-228 from sludge waste produced in natural gas processing plants
Published 2025-02-01“…The main radionuclides present in sludge waste of natural gas processing are Radium and its daughters due to their low solubility in the water they can form compounds with sulfate ions, carbonate ions, silicate ions, then precipitation scale or sludge. …”
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2312
Investigation of Early Corrosion Behavior of Canister Candidate Materials in Oxic Groundwater by the EQCM Method
Published 2022-01-01“…In the presence of chloride ions, the Ni and Ti electrodes did not reveal demonstrate any significant changes, whereas the SS304 electrode was slightly increased compared to an absence of chloride ions. …”
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2313
Adsorptive Applications of Montmorillonite Clay for the Removal of Ag(I) and Cu(II) from Aqueous Medium
Published 2019-01-01“…The present work aims to investigate the ability of Saudi clay containing montmorillonite to remove Ag(I) and Cu(II) ions from aqueous solutions for waste water purification. …”
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2314
Valorization of Wasted Black Tea as a Low-Cost Adsorbent for Nickel and Zinc Removal from Aqueous Solution
Published 2016-01-01“…Maximum percentages of metal ions removal were recorded at pH 5, contact time 250 min, and 20 g/L of adsorbent concentration. …”
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2315
The influence of cracks on the corrosion initiation time caused by chloride diffusion in concrete structures using the Boundary Element Method
Published 2025-01-01“… Abstract Reinforced concrete structures in coastal zones are subject to corrosion triggered by chloride ions. In contact with the concrete surface, such ions penetrate through the material’s porous microstructure, mainly by diffusion, and accumulate on the reinforcement’s surface, promoting a local breakage of the passive layer. …”
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2316
Reduced Schiff-base derivatives to stop reactive oxygen species production by the Cu(A$\beta $) species: a structure–activity relationship
Published 2023-10-01“…Its binding to the redox copper ions and the subsequent production of reactive oxygen species (ROS) contributing to the overall oxidative stress observed in the disease is among the deleterious effects A${\beta }$ may have. …”
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2317
Passivation and red-ox processes of refractory metals in carbamide-chloride melt
Published 2003-01-01“…The electrochemical behavior of refractory metals (Pt, Pd, W, Ti, Nb, Ta) in the low temperature carbamide-NH4Cl melt (texp=120 oC) and the structure of complex ions formed after anodic dissolution have been studied by cyclic voltammetry and spectroscopic methods. …”
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2318
Photocatalytic degradation of aqueous organic solvents in the presence of hydroxyl radical scavengers
Published 2001-01-01“…In addition, it appears that bicarbonate and carbonate ions were reduced to other organic species during the photocatalytic reaction.…”
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2319
The Synthesis and Characterization of Poly(methyl methacrylate-tourmaline acrylate)
Published 2016-01-01“…The results from the negative ions measurement revealed that the amounts of released negative ions from both the modified tourmaline and its copolymer are much larger than that of tourmaline.…”
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2320
Investigation of Optical and Dielectric Properties of Nickel-Doped Zinc Oxide Nanostructures Prepared via Coprecipitation Method
Published 2024-01-01“…Since more charge carriers enhanced after the nickel ions were exchanged for the Zn ions, the AC electrical conductivity (σa.c) improves by nickel doping compared to undoped zinc oxide.…”
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