An unprecedented single platform via cross-linking of zeolite and MOFs

Lim, Dae‐Woon; Lee, Heeju; Kim, Sungjune; Cho, In Hwa; Yoon, Minyoung; Choi, Yong Nam

doi:10.1039/c6cc00984k

Cited by 25 publications

(15 citation statements)

References 39 publications

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“…This action might mention that electrostatic interaction is not the signi cant way to control the adsorption capacity of MOF-74 and ZSM-12@MOF-74 to cationic dye. Based on structure of MB dye and MOF-74, π − π stacking interaction as another force controlled the removal of MB on core@shell and MOF-74 [9]. The highest percentage of destruction was obtained (47.55% degradation and 80.37% removal) using ZSM-12@MOF-74 compared to those of MOF-74 (36.15% degradation) and zeolite ZSM-12 (18.35% degradation) at pH = 9.…”

Section: Resultsmentioning

confidence: 99%

“…The integration of MOF and zeolite into composite particles is envisaged to produce useful hybrid nanoporous where inorganic zeolite and organic MOF components transmit the advantages of high thermal, mechanical and structural stability of zeolites and speci c functionality and high exibility of MOFs [6]. There are a few reports on zeolite@MOF composites [7][8][9][10]. Recently, we reported synthesis of Zeolite Y @ MIL-53 (Al) core@shell [11], with modifying of zeolite Y surface with COOH groups.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Albouyeh

Pourahmad

Kefayati

2021

Preprint

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White rice husk silica (RHS) was used as a silica source for ZSM-12 (MTW) zeolite synthesis. The ZSM-12 zeolite derived from RHS was prepared by hydrothermal method at 150°C. MOF-74(Zn) metal–organic framework (MOF) as a shell was growth over zeolite ZSM-12 as a core at room temperature. The ZSM-12@MOF-74 core@shell was used as a visible light driven photocatalyst for degradation of methylene blue (MB). The materials were characterized using a range of techniques. The ZSM-12@MOF-74 core@shell indicated the highest photocatalytic activity. Degradation mechanism was attributed to electrons and holes are generated in the organic ligand. The core@shell was extremely stable during five cycle test and did not demonstrate any explicit loss of photocatalytic activity during five cycle tests. The used adsorbent can be reused for adsorptive removal through simply washing.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Albouyeh

Pourahmad

Kefayati

2021

Preprint

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“…The COOH functionalization procedure was adopted from a method reported previously with slight modification. 32 Prior to surface modification, the fine zeolite powder was heated and degassed under vacuum at 350 °C for 3 h to remove any preadsorbed humidity. About 7.5 g of succinic anhydride and 18 mL of APTES were dissolved in 100 mL of DMF, then the solution was stirred at room temperature for 25 min.…”

Section: Methodsmentioning

confidence: 99%

“…The composites exhibited bifunctional properties for cascade reactions. In a study by Lim et al, 32 the composites of Pt nanoparticles, NaY, and MOF-5 with core−shell structure were developed, and their H 2 adsorption behaviors were evaluated. The authors reported surface modification of zeolite with carboxylate prior to the synthesis of composites.…”

Section: Introductionmentioning

confidence: 99%

Novel Zeolite-5A@MOF-74 Composite Adsorbents with Core–Shell Structure for H₂ Purification

Al-Naddaf

Thakkar

Rezaei

2018

ACS Appl. Mater. Interfaces

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Hydrogen is considered as one of the most important clean and renewable energy sources for a sustainable energy future. However, its efficient and cost-effective purification still remains challenging. In this work, we report the development of novel zeolite@metal-organic framework (MOF) composites comprised of MOF-74 and zeolite-5A with core-shell structure for efficient purification of H. The composites were synthesized hydrothermally through the addition of zeolite particles with and without carboxyl functional groups to the MOF synthesis solution. The zeolite/MOF weight ratio was varied systematically to find the optimum composition based on the adsorption performance. The formation of zeolite@MOF composites was confirmed by various characterization techniques. Single-component adsorption isotherms of CO, CO, CH, N, and H over composites were measured at 25 °C to determine their equilibrium adsorption capacity. It was found that the zeolite-5A@MOF-74 with weight ratio of 5:95 exhibited a similar morphology to that of pristine MOF-74, but with higher surface area and total pore volume. Moreover, this composite showed 20-30% increase in CO, CO, CH, and N uptake than the bare MOF, which could be attributed to the formation of new mesopores at the MOF-zeolite interface. The estimated selectivity values for CO/H, CO/H, CH/H, and N/H were higher than those of the zeolite and/or MOF. Our results also indicated that surface modification of zeolite prior to composite formation does not enhance the adsorption capacities of the composites. Overall, the findings of this study suggest that the zeolite-5A@MOF-74 composites with core-shell structure are promising candidates for industrial H purification processes.

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“…AlO(OH) and MOF share common characteristics of high surface affinity and tunable morphological and structural features such as shape, specific surface area, and pore/particle size but differ in thermal/mechanical stability and structural flexibility. The conjunction of MOF and AlO(OH) into composite materials is expected to produce useful hybrid materials where inorganic boehmite and organic MOF components transmit the advantages of high thermal, mechanical, and structural stability of AlO(OH) and specific functionality and high flexibility of MOFs such as MOFs with zeolites [26][27][28][29][30][31] and SiO 2 . [32] Herein, we proposed a novel strategy to prepare one new kind of well-defined MOF-based hybrid material by post-synthetic method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of boehmite/metal – Organic framework of type AlO(OH)/MOF‐74(Zn) for photocatalytic degradation of Congo red dye

Sohrabnezhad

Kazemi

Nodehi

2022

J Chinese Chemical Soc

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In the present work, boehmite metal‐organic framework nanocomposite, AlO(OH)/MOF‐74(Zn), was synthesized by a simple, fast, and low‐cost process. The post‐synthetic method was used for preparing new hybrid material. The photocatalytic efficiency of AlO(OH)/MOF‐74(Zn) was investigated by photocatalytic degradation of Congo Red anionic dye. The nanocomposite was characterized by various techniques. The electron microscopy images showed that the spherical MOF‐74 with about 30 nm was located over boehmite. The optical properties indicated the boehmite/MOF‐74 can be used as a visible‐light‐driven photocatalyst. Optimization of significant variables such as adsorbent dosage and initial Congo Red concentration and photodegradation time affecting removal was investigated and the optimized values were found to be 1 g/L, 10 mg/L, and 60 min, respectively. The AlO(OH)/MOF‐74(Zn) photocatalyst exhibited the highest catalytic performance for photodegradation of dye contaminants. Results indicated about 94% of tested dye were removed by a new hybrid photocatalyst under visible light irradiation. The results confirmed that due to some considerable features of AlO(OH)/MOF‐74(Zn) such as high surface area and chemical and thermal resistance, the introduced photocatalyst acts as a high‐performance photocatalyst for degradation of Congo Red dye in aqueous solutions.

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An unprecedented single platform via cross-linking of zeolite and MOFs

Cited by 25 publications

References 39 publications

Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Novel Zeolite-5A@MOF-74 Composite Adsorbents with Core–Shell Structure for H₂ Purification

Synthesis and characterization of boehmite/metal – Organic framework of type AlO(OH)/MOF‐74(Zn) for photocatalytic degradation of Congo red dye

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An unprecedented single platform via cross-linking of zeolite and MOFs

Cited by 25 publications

References 39 publications

Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Fabrication and Characterization of Zeolite ZSM-12@MOF-74 Nanoporous Coordination Polymer Nanocomposite for removal of environmental toxic substances

Novel Zeolite-5A@MOF-74 Composite Adsorbents with Core–Shell Structure for H2 Purification

Synthesis and characterization of boehmite/metal – Organic framework of type AlO(OH)/MOF‐74(Zn) for photocatalytic degradation of Congo red dye

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Novel Zeolite-5A@MOF-74 Composite Adsorbents with Core–Shell Structure for H₂ Purification