scholarly journals Synthesis and Characterization of La-Doped Luminescent Multilayer Films

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Tianlei Wang ◽  
Meitang Liu ◽  
Hongwen Ma ◽  
Defu Cao
Keyword(s):  
Transition Metal ◽  
Multilayer Films ◽  
The Novel ◽  
Light Emitting ◽  
Lanthanide Elements ◽  
Layer Double Hydroxides ◽  
Double Hydroxides ◽  
La Doped ◽  
Ferromagnetic Effect

In this work, we have successfully designed ordered luminescent multilayer films based on La-doped nonmagnetic or magnetic inorganic nanostructure with electronic microenvironment (EM). The inorganic nanosheets with opposite charge can assemble EM between the interlayers. At the same time, their elements on nanosheets of layer double hydroxides (LDHs) are facile to be replaced so that we can introduce transition metal or lanthanide elements. Besides, ferromagnetic effect (FE) can be formed in this microenvironment due to introducing transition metal on LDHs nanosheets. As a result, we confirm that EM, FE, and doping La element in the LDHs can affect the vibration of backbone of chromophores and then prolong the luminescent lifetime, which suggests a new pathway for developing the novel light-emitting thin films.

scholarly journals Nanohybrid Layered Double Hydroxides Used to Remove Several Dyes from Water

2019 ◽  
Vol 3 (2) ◽  
pp. 41 ◽  
Author(s):  
Karima Abdellaoui ◽  
Ivana Pavlovic ◽  
Cristobalina Barriga
Keyword(s):  
Layered Double Hydroxides ◽  
Wide Spectrum ◽  
Dodecylbenzene Sulfonate ◽  
Hydrophilic Nature ◽  
Interlayer Anion ◽  
Hydrophilic Character ◽  
Dyes Adsorption ◽  
Layer Double Hydroxides ◽  
Double Hydroxides

For the preparation and characterization of several layer double hydroxides (LDH) with inorganic interlayer anions (carbonate and nitrate) and nanohybrids, two organo-LDHs were studied in detail. The dodecylbenzene sulfonate (DBS) was used as an organic interlayer anion to modify the hydrophilic nature of the interlayer. The aim of the modification of the layered double hydroxides (LDH) was to change the hydrophilic character of the interlayer to hydrophobic with the purpose of improving its ability to adsorb several (anionic and cationic) dyes from water. These compounds have been used as adsorbents of amaranth (Am), diamine green B (DGB) and brilliant green (BG) dyes. Adsorption tests were conducted using variable pH values, contact times and initial dye concentrations (adsorption isotherms) to identify the optimum conditions for the intended purpose. Adsorbents and adsorption products were characterized by several physicochemical techniques. The results of the adsorption tests showed that the organo-LDH nanohybrids could be efficient adsorbents in the removal of studied dyes from water. Thus, it can be concluded that nanohybrids studied in this work might act as suitable supports in the design of adsorbents for the removal of a wide spectrum of dyes with the aim of reducing the adverse effects on water resources.

Synthesis and characterization of Mg–Fe layer double hydroxides and its application on adsorption of Orange G from aqueous solution

2011 ◽  
Vol 169 (1-3) ◽  
pp. 231-238 ◽  
Author(s):  
N. Benselka-Hadj Abdelkader ◽  
A. Bentouami ◽  
Z. Derriche ◽  
N. Bettahar ◽  
L.-C. de Ménorval
Keyword(s):  
Aqueous Solution ◽  
Synthesis And Characterization ◽  
Orange G ◽  
Layer Double Hydroxides ◽  
Double Hydroxides

scholarly journals Synthesis, Characterization and Magnetic Susceptibility of Novel Transition Metal Ion Complexes with (E)-2-((7H-Purin-6-ylimino)methyl)phenol and Its Antibacterial Efficiency

2021 ◽  
Vol 7 (4) ◽  
pp. 748-750
Author(s):  
S. Tihile Mangesh ◽  
N. Chaudhari Gajanan
Keyword(s):  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Transition Metal ◽  
Metal Ion ◽  
Spectroscopic Techniques ◽  
The Novel ◽  
Metal Ion Complexes ◽  
Transition Metal Ion ◽  
Ft Ir

The novel transition metal ion complexes were synthesized by refluxing the ethanolic solutions of metal acetates with Schiff base in 1:2 ratios. The structure and characterization of synthesized complexes of Mn (II), Co (II), Ni (II), Cu (II) and Zn (II) with Schiff base (E)-2-((7H-purin-6-ylimino)methyl)phenol were elucidated by using 1H NMR, FT-IR and UV-Visible spectroscopic techniques. The synthesized compounds were also been screened against gram positive and gram-negative bacteria. The novel compounds were further carried out for the study of magnetic susceptibility.

scholarly journals Biocidal Activities of Substituted Benzothiazole of Copper Surfactants over Candida albicans & Trichoderma harziamunon on Muller Hinton Agar

2018 ◽  
Vol 5 (1) ◽  
pp. 24-35 ◽  
Author(s):  
Neha Mathur ◽  
Nisha Jain ◽  
A.K. Sharma
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Antimicrobial Agents ◽  
Biological Activities ◽  
Industrial Applications ◽  
The Novel ◽  
Important Place ◽  
Ft Ir

Background: Heterocyclic complexes in the current era are aimed at evaluating as new products that possess wide biological, pharmacological, agricultural, medicinal, industrial applications and many more highly significant uses. Although they have been known from long ago for their great biocidal significance, still the researchers pay a great attention for profiling the pharmacological view of novel macrocycles like benzothiazoles. Increasing number of microbial infectious diseases and resistant pathogens create a demand and urgency to develop novel, potent, safe and improved variety of antimicrobial agents. Objective: This initiates a task for current chemistry to synthesize compounds that show promising activity as therapeutic agents with lower toxicity. It is very necessary to introduce new and biologically safe and active drugs eco-friendly in nature and effective as antimicrobial agents. Methods: Transition metal complexes share an important place in this regards. Therefore in this paper we report the synthesis and characterization of transition metal complex of N/S ligand by FT-IR, NMR, ESR, elemental analysis, conductometric and magnetic moment measurements. The synthesized metal complexes were successfully investigated for biological activities namely antifungal. Results: Based on the results we pronounced biocidal activities of the novel complexes. Concerned complexes contribute diverse applications by being more economical, harmless, non -toxic and eco-environmental friendly.

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