Composite materials based on covalent organic frameworks for multiple advanced applications

Exploration, Год журнала: 2023, Номер 3(3)

Опубликована: Май 23, 2023

Covalent organic frameworks (COFs) stand for a class of emerging crystalline porous materials, which are ingeniously constructed with units through strong covalent bonds. Their excellent design capabilities, and uniform tunable pore structure make them potential materials various applications. With the continuous development synthesis technique nanoscience, COFs have been successfully combined variety functional to form COFs-based composites superior performance than individual components. This paper offers an overview different types reported so far, particular focus on applications composites. Moreover, challenges future prospects presented. We anticipate that review will provide some inspiration further

Язык: Английский

---

Selective extraction of rare earth elements from red mud using oxalic and sulfuric acids

Journal of environmental chemical engineering, Год журнала: 2022, Номер 10(6), С. 108650 - 108650

Опубликована: Сен. 26, 2022

Язык: Английский

---

Nickel-aluminium layered double hydroxide as an efficient adsorbent to selectively recover praseodymium and samarium from phosphogypsum leachate

Journal of Alloys and Compounds, Год журнала: 2023, Номер 960, С. 170530 - 170530

Опубликована: Май 11, 2023

Язык: Английский

---

Occurrence, treatment, and potential recovery of rare earth elements from wastewater in the context of a circular economy

Journal of Water Process Engineering, Год журнала: 2023, Номер 55, С. 104223 - 104223

Опубликована: Сен. 8, 2023

Язык: Английский

---

Selective adsorption of gadolinium from real leachate using a natural bentonite clay

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(3), С. 109748 - 109748

Опубликована: Март 22, 2023

Язык: Английский

---

Advances in reticular materials for sustainable rare earth element recovery

Coordination Chemistry Reviews, Год журнала: 2024, Номер 522, С. 216199 - 216199

Опубликована: Сен. 13, 2024

Язык: Английский

---

Nanoporous Sulfonic Covalent Organic Frameworks for Selective Adsorption and Separation of Lanthanide Elements

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(4), С. 2498 - 2506

Опубликована: Фев. 8, 2023

Lanthanides are a group of important elements and have been widely used in many fields. Their separation is crucial for technical applications, but it remains troublesome task due to their subtly different properties. Herein, novel nanoporous sulfonic covalent organic frameworks were synthesized by the Schiff base reaction 1,3,5-tris(p-formylphenyl)benzene (TFPB) 2,5-diaminobenzene-1,4-disulfonic acid (DABDA) under mild conditions, which defined as TFPB-DABDA iCOFs highly selective adsorption lanthanide elements. These uniform morphology, good stability, excellent ability. The experiment results indicate that capacity sensitive ionic radius. It means larger size difference between ions, higher selectivity, especially early lanthanides (La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+) late (Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Lu3+). mechanism may be related groups ordered channels COFs. This work develops simple efficient strategy synthesis iCOFs, shows promising application effective lanthanides.

Язык: Английский

---

From ash to oxides: Recovery of rare-earth elements as a step towards valorization of coal fly ash waste

Separation and Purification Technology, Год журнала: 2023, Номер 314, С. 123532 - 123532

Опубликована: Март 14, 2023

Язык: Английский

---

Uptake and separation of rare earth elements and late transition metal cations by nanoadsorbent grafted with diamino ligands

Separation and Purification Technology, Год журнала: 2023, Номер 323, С. 124487 - 124487

Опубликована: Июль 1, 2023

Recycling of magnetic materials based on Rare Earth Elements (REE) is major interest in the view growing clean energy production and transportation. One challenges its realization need to separate smaller amounts Late Transition Metals (LTM) from REE. Hybrid adsorbents are very attractive finding such a solution. Here, novel silica-based nanoadsorbents were synthesized by grafting surface dense silica nanoparticles with diamino functional ligand grafted via an arene linker improve selectivity towards LTM. The produced adsorbent characterized using SEM, TEM, AFM, XPS, FTIR, TGA pure form DLS suspension, tested for adsorption separation LTM (Co2+ Ni2+) REE (Sm3+ Nd3+) single mixed solutions. Prepared organo-silica material showed rapid uptake all cations higher affinity Adsorption capacities reached values 1.18-1.45 mmol/g Co2+ Ni2+, respectively, 1:1 metal-to-ligand stoichiometry Ni cations. Investigation reusability demonstrated potential prepared as environmentally friendly alternative specific conventional techniques. Investigations molecular structures Ni2+ complex selected function Co3+ closely related tris-aminoethyl amine combination XPS data corresponding complexes helped explaining mechanisms desorption

Язык: Английский

---

Shape-controllable preparation of covalent organic frameworks and their application in efficient removal of aromatic organic pollutants

Separation and Purification Technology, Год журнала: 2024, Номер 344, С. 127176 - 127176

Опубликована: Март 24, 2024

Язык: Английский

---