Efficient Rare-Earth-Based Coordination Polymers as Green Photocatalysts for the Synthesis of Imines at Room Temperature

Aguirre-Díaz, Lina María; Snejko, Natalia; Iglesias, Marta; Sánchez, Félix; Gutiérrez‐Puebla, Enrique; Monge, Ángeles

doi:10.1021/acs.inorgchem.8b00465

Cited by 35 publications

(28 citation statements)

References 57 publications

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“…Rare-earth-based coordination polymers (CPs) have been studied due to their expanded structures and applications [5]. These materials contain catalytic active sites in both the organic linkers and metal centers.…”

Section: Rare-earth-based Coordination Polymersmentioning

confidence: 99%

“…Aguirre-Díaz et al [5] synthesized five new lanthanide CPs (Ln-CPs) by solvothermal method using La, Nd, Sm, Ho, and Er as metal sources in order to offer a remarkable platform which contains antennas and catalytic active centers to achieve solar-energy conversion as green alternatives.…”

Section: Rare-earth-based Coordination Polymersmentioning

confidence: 99%

“…The rare earth doped with some semiconductors such as SnO 2 can be used for temperature sensing. Recently, Eu 3+ -ions doped SnO 2 has attracted the research attention as a candidate for thermometry applications [5].…”

Section: Application Of Rare-earth-based Materialsmentioning

confidence: 99%

“…Rare-earth-based materials were generally applied in high and low temperature fuel cells [4], gas storage/separation, chemical sensing [5], heterogeneous photocatalysis [6], wastewater treatment [7], fluorescence [8], photoelectrochemical Water [9], etc. Nanostructure of rare-earth material is appropriate for these applications that can be synthesized with different methods for example coprecipitation, hydrothermal, sol-gel, combustion, stearic acid route, pechini, cathode plasma, electrolysis, co-ions complexation, molten salt and other approaches [7].…”

Section: Introductionmentioning

confidence: 99%

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Rare-Earth-Based Materials for Heterogeneous Photocatalysis

Zinatloo-Ajabshir¹,

Sayyar²

2019

Concepts of Semiconductor Photocatalysis

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Recently, the synthesis of rare-earth-based nanostructures as a significant class of materials with photocatalysis activity has attracted the attention of researchers. Many studies have shown their applications in various fields, specifically in photocatalysis. There are different methods to synthesis of rare-earth nanostructures. In this study, we discuss about modification of rare-earth-based materials. Also production methods and their advantages and disadvantages have been presented, briefly. Finally, photocatalytic applications of rare-earth nanostructures are highlighted.

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Section: Rare-earth-based Coordination Polymersmentioning

confidence: 99%

Section: Rare-earth-based Coordination Polymersmentioning

confidence: 99%

Section: Application Of Rare-earth-based Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rare-Earth-Based Materials for Heterogeneous Photocatalysis

Zinatloo-Ajabshir¹,

Sayyar²

2019

Concepts of Semiconductor Photocatalysis

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“…Among the different kinds of organic materials, Schiff base or azomethine is a compound containing functional group. Depending on the groups attached to HC=N of Schiff base, these materials are also well-known as (a) imines [1,2]; (b) diimines when derived from amines and (c) ketamine's when derived from ketones [3]. Schiff-bases have large applications in different fields and have got the wide attention to several researchers, scientists and technologists [4].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Applications of Polymer Chelating Resins Containing Schiff Base

2019

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In this article, a series of Schiff-base compounds is prepared by consending aromatic dialdehydes and diamines in the presence of p-toluenesulfonic acid as catalyst. The prepared Schiff bases are characterized by CHNS/O, NMR and FTIR techniques. Moreover, analytical applications of Schiff bases as chelating agent was evaluated by loading (20 %) of compounds (B and C) the urethanic foams. Furthermore, chelating resins type P1 (B) and P2 (C) are also prepared by loading the Schiff base into polymer backbones. Moreover, the batch process is used to study the ability of these resins in recovering metals ions, such as (Mg2+, Pb2+, Cu2+, Cr3+, Ni2+, Co2+, Cd2+ and Ca2+). The study is performed by considering the contact time and pH value. Finally, the polymer’s maximum loading capacity is in the following sequence: P1 (B) Co2+ > Cr3+ > Mg2+ > Ni2+ > Cd2+ > Ca2+ > Pb2+ > Cu2+; P2 (C) Mg2+ > Cd2+ > Ca2+ > Co2+ > Pb2+ > Cu2+ > Cr3+.

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Metal–Organic Frameworks Based on Group 3 and 4 Metals

et al. 2020

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Metal-organic frameworks (MOFs), a class of porous crystalline framework materials, are linked by strong bonds between inorganic and organic building blocks. [1-3] In the past two decades, MOFs have rapidly grown as a star material due to their exceptional performance in areas such as storage, separation and catalysis. [4] The outstanding performance of MOFs in applications benefits from their intrinsically porous structures and highly tunable pore environment. [5-7] The creation and modification of pore space with optimized size, functionality and diversity can be precisely tuned at the molecular level by rationally designing building blocks and synthetic procedures. [8,9] The diversity of MOFs can be enriched by expanding the library of organic linkers with varying lengths, geometries, and functional groups. [10] Additionally, very diverse metal cations are applied to MOF synthesis, ranging from monovalent (Ag + , Cu + , etc.), divalent (Mg 2+ , Fe 2+ , Co 2+ , Ni 2+ , etc.), trivalent (Al 3+ , Sc 3+ , V 3+ , Cr 3+ , etc.), to tetravalent (Ti 4+ , Zr 4+ , Hf 4+ , etc.) cations. [11] In this review, we mainly focus on MOFs with group 3 and 4 metals, including Y, lanthanides (Ln, from La to Lu), actinides (An, from Ac to Lr), Ti, and Zr (Figure 1). Group 3 metal cations are generally found in the oxidation state of +3 in the MOF structures, while group 4 metal cations mainly exist in the oxidation state of +4, leading to the formation of much stronger coordination bonds with carboxylates. [12] Therefore, group 4 metal-based MOFs (M IV-MOFs) generally have enhanced stability compared with MOFs constructed from metals of group 3 and other groups. This series of MOFs stands out because the involved metals can generally coordinate with carboxylates to form frameworks with strong coordination bonds, according to the Pearson's hard/soft acid/base principle, where group 3 and 4 metal cations are regarded as hard acids while carboxylate ligands are hard bases. [11] One remarkable feature of MOFs with group 3 and 4 metals is that they generally can form phases containing M 6 O 8 (M = Y, Ln, An, Zr and Hf) clusters, regardless of their atomic numbers, charges and radius. This series of M 6-based MOFs is best represented by UiO series such as UiO-66 with fcu topology. [13] Under different synthetic conditions, UiO-66(M, M = An, Zr and Hf) constructed from [M 6 (μ 3-O) 4 (μ 3-OH) 4 ] clusters and linear carboxylates can be obtained, while UiO-66(M, M = Y, Ln) is assembled from Metal-organic frameworks (MOFs) based on group 3 and 4 metals are considered as the most promising MOFs for varying practical applications including water adsorption, carbon conversion, and biomedical applications. The relatively strong coordination bonds and versatile coordination modes within these MOFs endow the framework with high chemical stability, diverse structures and topologies, and interesting properties and functions. Herein, the significant progress made on this series of MOFs since 2018 is summarized and an update on the current status an...

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Efficient Rare-Earth-Based Coordination Polymers as Green Photocatalysts for the Synthesis of Imines at Room Temperature

Cited by 35 publications

References 57 publications

Rare-Earth-Based Materials for Heterogeneous Photocatalysis

Rare-Earth-Based Materials for Heterogeneous Photocatalysis

Synthesis and Applications of Polymer Chelating Resins Containing Schiff Base

Metal–Organic Frameworks Based on Group 3 and 4 Metals

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