scholarly journals Selective Extraction of REEs Thanks to One-Pot Silica Hybrid Materials

2020 ◽  
Vol 10 (21) ◽  
pp. 7558
Author(s):  
Robert Winkler ◽  
Stéphane Pellet-Rostaing ◽  
Guilhem Arrachart
Keyword(s):  
Hybrid Materials ◽  
Global Economy ◽  
High Efficiency ◽  
Selective Extraction ◽  
Uptake Capacity ◽  
One Pot ◽  
Functionalized Materials ◽  
Loaded Material ◽  
Direct Incorporation ◽  
Silica Hybrid

The importance of rare-earth elements (REEs) in the global economy is rapidly growing, since they are essential to many advanced technologies. Therefore, the development of more performant separation procedures for REEs has become necessary. In the present study, we used silica hybrid materials (SHMs), which were synthesized by an all-in-one approach that allows the direct incorporation of desired functional groups, as sorbent material. Promising results were obtained for the extraction capacities of diglycolamide-functionalized materials. Under the tested conditions, they showed high efficiency (Nd uptake capacity of about 25 mg per g of material) and high selectivity toward REEs from a simulated NdFeB magnet leachate. For these materials, Nd recovery after extraction was achieved with an efficiency of 80% by contacting the loaded material with distilled water at moderate pH (6.5).

scholarly journals Green one-pot synthesis and processing of polyimide–silica hybrid materials

2017 ◽  
Vol 5 (31) ◽  
pp. 16326-16335 ◽  
Author(s):  
Lukas Leimhofer ◽  
Bettina Baumgartner ◽  
Michael Puchberger ◽  
Thomas Prochaska ◽  
Thomas Konegger ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Hybrid Materials ◽  
Solvent Free ◽  
Green Solvent ◽  
One Pot ◽  
One Pot Synthesis ◽  
Synthesis And Processing ◽  
Silica Hybrid

A green and scalable one-pot hydrothermal synthesis generates polyimide/silica hybrid materials, which can be processed by green, solvent-free sintering.

Design of mesoporous silica hybrid materials as sorbents for the selective recovery of rare earth metals

2015 ◽  
Vol 3 (19) ◽  
pp. 10327-10335 ◽  
Author(s):  
Xudong Zheng ◽  
Chun Wang ◽  
Jiangdong Dai ◽  
Weidong Shi ◽  
Yongsheng Yan
Keyword(s):  
Rare Earth ◽  
Mesoporous Silica ◽  
Hybrid Materials ◽  
Global Economy ◽  
Essential Role ◽  
Rare Earth Metals ◽  
Selective Recovery ◽  
Advanced Technologies ◽  
Silica Hybrid

The importance of rare earth metals in the global economy has increased significantly in recent years due to their essential role in advanced technologies in the electronics and biomedical industries.

Chlorosulfonic Acid Supported Piperidine-4-carboxylic Acid (PPCA) Functionalized Fe3O4 Nanoparticles (Fe3O4-PPCA): The Efficient, Green and Reusable Nanocatalyst for the Synthesis of Pyrazolyl Coumarin Derivatives under Solvent-Free Conditions

2019 ◽  
Vol 22 (2) ◽  
pp. 123-128
Author(s):  
Setareh Habibzadeh ◽  
Hassan Ghasemnejad-Bosra ◽  
Mina Haghdadi ◽  
Soheila Heydari-Parastar
Keyword(s):  
Carboxylic Acid ◽  
Fe3o4 Nanoparticles ◽  
High Efficiency ◽  
Reaction Times ◽  
Chlorosulfonic Acid ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Magnetic Nanocatalyst ◽  
One Pot ◽  
Solvent Free Conditions

Background: In this study, we developed a convenient methodology for the synthesis of coumarin linked to pyrazolines and pyrano [2,3-h] coumarins linked to 3-(1,5-diphenyl-4,5- dihydro-1H-pyrazol-3-yl)-chromen-2-one derivatives using Chlorosulfonic acid supported Piperidine-4-carboxylic acid (PPCA) functionalized Fe3O4 nanoparticles (Fe3O4-PPCA) catalyst. Materials and Methods:: Fe3O4-PPCA was investigated as an efficient and magnetically recoverable Nanocatalyst for the one-pot synthesis of substituted coumarins from the reaction of coumarin with a variety of aromatic aldehydes in high to excellent yield at room temperature under solvent-free conditions. The magnetic nanocatalyst can be easily recovered by applying an external magnet device and reused for at least 10 reaction runs without considerable loss of reactivity. Results and Conclusion: The advantages of this protocol are the use of commercially available materials, simple and an inexpensive procedure, easy separation, and an eco-friendly procedure, and it shows good reaction times, good to high yields, inexpensive and practicability procedure, and high efficiency.

scholarly journals Hybrid material by anchoring a ruthenium(ii) imine complex to SiO2: preparation, characterization and DFT studies

RSC Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 6221-6233
Author(s):  
G. Eliad Benitez-Medina ◽  
Raúl Flores ◽  
Luis Vargas ◽  
Fernando Cuenú ◽  
Pankaj Sharma ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Hybrid Material ◽  
Dft Studies ◽  
Ft Ir ◽  
Silica Hybrid

Ruthenium–silica hybrid materials were synthesized. The process was tracked by FT-IR, DRS-UV-Vis, DFT and deconvolution analyses, finding experimental–theoretical correlation.

Fast and high-efficiency synthesis of 2-substituted benzothiazoles via combining enzyme catalysis and photoredox catalysis in one-pot

2020 ◽  
pp. 104607
Author(s):  
Zeng-Jie Yang ◽  
Qing-Tian Gong ◽  
Yuan Yu ◽  
Wei-Fan Lu ◽  
Zhe-Ning Wu ◽  
...  
Keyword(s):  
Enzyme Catalysis ◽  
High Efficiency ◽  
Photoredox Catalysis ◽  
One Pot

Organic base-catalyzed sol–gel route to prepare PMMA–silica hybrid materials

2007 ◽  
Vol 56 (3) ◽  
pp. 343-349 ◽  
Author(s):  
Jui-Ming Yeh ◽  
Chi-Fa Hsieh ◽  
Chia-Wen Yeh ◽  
Mei-Jyun Wu ◽  
Hsing-Chung Yang
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Organic Base ◽  
Silica Hybrid

Barium calcium titanate @carbon hybrid materials for high-efficiency room-temperature pyrocatalysis

2021 ◽  
Author(s):  
Huiying Wang ◽  
Yanmin Jia ◽  
Taosheng Xu ◽  
Xiaoxin Shu ◽  
Yiming He ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Room Temperature ◽  
High Efficiency ◽  
Calcium Titanate

scholarly journals Algae-Silica Hybrid Materials for Biosorption of Heavy Metals

2010 ◽  
Vol 02 (02) ◽  
pp. 115-122 ◽  
Author(s):  
Ulrich Soltmann ◽  
Sabine Matys ◽  
Gunter Kieszig ◽  
Wolfgang Pompe ◽  
Horst Bottcher
Keyword(s):  
Heavy Metals ◽  
Hybrid Materials ◽  
Biosorption Of Heavy Metals ◽  
Silica Hybrid
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