Efficient immobilization of catalase on mesoporous MIL-101 (Cr) and its catalytic activity assay

Li, Rongzhong; Liu, Shiji; Zhou, Xiaolin; Han, Le; Zhou, Hengcao; Wang, Chunfang; Liu, Yufeng; Zhang, Xia

doi:10.1016/j.enzmictec.2022.110005

Cited by 6 publications

(3 citation statements)

References 52 publications

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“…obtained HF‐MIL‐101(Cr) 660–700 nm in diameter, whereas their CH 3 COOLi‐MIL‐101(Cr) is 260–280 nm in diameter. [ 27 ] Figure 8a also shows that MIL‐101(Cr) prepared using acetate salts [ 126–134 ] tends to be smaller than HF‐MIL‐101(Cr). Reportedly, acetate (CH 3 COO − ) ions form chromium trimeric acetate building units with Cr 3+ ions and the subsequent exchange between BDC 2− and the CH 3 COO − ions yields highly crystalline MIL‐101(Cr) particles.…”

Section: Influence Of Additives On Mil‐101(cr)’s Porosity and Particl...mentioning

confidence: 99%

“…[27] Specifically, CH 3 COONa was the acetate salt of choice as it is less hazardous than CH 3 COOLi (Table 3). [113,[126][127][128][129][130][131][132][133][134][135][136][137] Despite providing the same monocarboxylate anion as CH 3 COOH, acetate salts form mildly alkaline solutions [27] and are less hazardous than CH 3 COOH (Table 3). Hence, acetate salts also aid the dissolution of H 2 BDC for high nucleation rates and slow crystal growth.…”

Section: Acetate Saltsmentioning

confidence: 99%

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Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

Wee

Chinnappan

Ramakrishna

2023

Adv Materials Inter

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Among the existing metal–organic frameworks (MOFs), MIL‐101(Cr) is renowned for its stability in air and water. As a result, MIL‐101(Cr) has numerous potential applications ranging from adsorptive cooling to catalysis. The industrial‐scale production of MIL‐101(Cr) is necessary before realizing these applications. Yet, there remain two main bottlenecks in preparing MIL‐101(Cr) in bulk: the toxicity of hydrofluoric acid (HF) used in conventional MIL‐101(Cr) synthesis and the challenge of ensuring that the as‐prepared MIL‐101(Cr) is highly porous with specific Brunauer–Emmett–Teller surface area (SBET) above 4000 m2 g−1. On the laboratory scale, MIL‐101(Cr) often presents SBET 2300–3500 m2 g−1. The synthesis and purification procedures often influence the yield, particle size, porosity, and other properties of MIL‐101(Cr). This critical review examines trends in MIL‐101(Cr) preparation procedures and the MOF's resulting properties to elucidate areas for improvement toward its real‐world applications. The purification processes for conventional HF‐based MIL‐101(Cr) whereby porosities vary despite the same synthesis approach are first investigated. Next, the reported additives for substituting HF and their influence on the resulting MIL‐101(Cr)’s porosity and particle size are discussed. The selection of additives may be application‐specific: exemplified in the examination of MIL‐101(Cr)’s preparation, its corresponding water sorption capacity, and desiccant‐related applications.

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Section: Influence Of Additives On Mil‐101(cr)’s Porosity and Particl...mentioning

confidence: 99%

Section: Acetate Saltsmentioning

confidence: 99%

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

Wee

Chinnappan

Ramakrishna

2023

Adv Materials Inter

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“…1 Metal-organic frameworks (MOFs) are porous coordination polymers composed of inorganic metal centres and organic ligands that are widely applied in catalysis, energy storage and separation. 2,3 MIL-101(Cr) is a widely studied MOF with an octahedral shape, large specific surface area, strong acid resistance, stability, and strong adsorption capacity. Combining MIL-101(Cr) with other semiconductors to form composite materials not only broadens its photoresponse range and improves the absorption of visible light but also forms a heterojunction structure, which promotes the separation of photogenerated carriers.…”

Section: Introductionmentioning

confidence: 99%

In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)

Lin

Chen

et al. 2023

Dalton Trans.

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In‐situ construction of Bi₂O₂CO₃/MIL‐101(Cr) nanosheet catalyst for enhanced photocatalytic degradation of organic dye molecules from water

Zhang,

Xie,

Wang

et al. 2024

Applied Organom Chemis

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For nearly a century, the excessive discharge of organic contaminants has gradually polluted water and endangered people's health, and photocatalysis has been prominently employed to remove persistent recalcitrant organic. Here, MIL‐101(Cr) was firstly employed to introduce thin‐layered Bi2O2CO3 for the formation of Bi2O2CO3/MIL‐101(Cr) nanosheet composite, by a simple and low‐temperature in‐situ growth approach. The phase, morphology, optical, and surface characteristics of the fabricated composite were characterized through XRD, FTIR, SEM‐EDS, N2 adsorption–desorption, UV–Vis DRS, PL, TG, and XPS techniques, and the ability in the photocatalytic breakdown of rhodamine B (RhB) molecule under visible light was also studied. The results of characterization analysis and optical analysis exhibited that Bi2O2CO3/MIL‐101(Cr) has large pore size, good visible light response‐ability, and the heterojunction created by intercalating Bi2O2CO3 on MIL‐101(Cr). Photocatalytic studies revealed that Bi2O2CO3/MIL‐101(Cr) had superior RhB degradation activity than pure MIL‐101(Cr) and Bi2O2CO3, which achieved 97.1% with visible light irradiation for 20 mg/l RhB. Meanwhile, the Bi2O2CO3/MIL‐101(Cr) composite displayed good recyclability after three cycles as revealed by XRD and FTIR analysis proving their excellent stability. This study provides feasible insight into developing novel and efficient MIL‐101‐based heterojunction catalysts for environmental remediation in the future.

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Efficient immobilization of catalase on mesoporous MIL-101 (Cr) and its catalytic activity assay

Cited by 6 publications

References 52 publications

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)

In‐situ construction of Bi₂O₂CO₃/MIL‐101(Cr) nanosheet catalyst for enhanced photocatalytic degradation of organic dye molecules from water

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Efficient immobilization of catalase on mesoporous MIL-101 (Cr) and its catalytic activity assay

Cited by 6 publications

References 52 publications

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

Elucidating Improvements to MIL‐101(Cr)’s Porosity and Particle Size Distributions based on Innovations and Fine‐Tuning in Synthesis Procedures

In or on, a study of the influence of the binding site for TiO2 and MIL-101(Cr)

In‐situ construction of Bi2O2CO3/MIL‐101(Cr) nanosheet catalyst for enhanced photocatalytic degradation of organic dye molecules from water

Contact Info

Product

Resources

About

In or on, a study of the influence of the binding site for TiO₂ and MIL-101(Cr)

In‐situ construction of Bi₂O₂CO₃/MIL‐101(Cr) nanosheet catalyst for enhanced photocatalytic degradation of organic dye molecules from water