Water-resistant HKUST-1 functionalized with polydimethylsiloxane for efficient rubidium ion capture

Tian, Ning; Gao, Yuan; Wu, Jiafei; Su-qing, Luo; Dai, Wei

doi:10.1039/c9nj03632f

Cited by 40 publications

(38 citation statements)

References 42 publications

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“…One of the most studied and representative cases, Cu-BTC [Cu 3 (BTC) 2 , BTC = 1,3,5-benzenetricarboxylate] also denoted as HKUST-1 or MOF-199, is a widely focused and developed metal-organic frameworks (MOFs). 1,2 Thanks to the advantages of tunable options, organic functionality, high thermal and mechanical stability, open metal sites in the skeleton, large pore sizes, high surface areas, and easy surface modification, Cu-BTC exhibited a very promising candidate for adsorptive removal of toxic compounds (e.g. methylene blue (MB)) from effluent wastewaters.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, 7 Cu-BTC-(n)Br was synthesized using doped bromine groups onto Cu-BTC, exhibiting an extraordinary water-resistant ability for sulfur capture in the presence of moisture. Another case developed by our group is the PDMS@Cu-BTC, 2 which exhibited good water-resistance and adsorption performance for Rb + from aqueous solutions. Some similar approaches such as doped methyl modification, 2 alkyl long chains, 8 and carbon materials 9 were also reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced water-resistant performance of Cu-BTC through polyvinylpyrrolidone protection and its capture ability evaluation of methylene blue

Zhu¹,

Wu²,

Chen³

et al. 2022

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced water-resistant performance of Cu-BTC through polyvinylpyrrolidone protection and its capture ability evaluation of methylene blue

Zhu¹,

Wu²,

Chen³

et al. 2022

New J. Chem.

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“…In addition, to describe the uptake of Rb(I) accurately, the Langmuir adsorption process can be classified by a separation factor, R L , represented by eq where K L shows the Langmuir constant related to the energy of adsorption; C 0 reflects the initial concentration; R L = 0, R L < 1, R L > 1, and R L = 1 show the irreversible adsorption isotherms, favorable and unfavorable adsorption, as well as the linear adsorption isotherms, respectively. The results calculated by eq showed that in the tested HNO 3 medium the R L value was in the range of 0–1, revealing favorable adsorption of Rb(I) onto iPCalixC5X.…”

Section: Resultsmentioning

confidence: 99%

Selective Adsorption of Rubidium onto a New 1,3-Alternate Calix[4]crown-5 Mesoporous Adsorbent with a Polar Carrier Containing Polyalkyl Ester

Lyu

Zhang

2019

J. Chem. Eng. Data

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A new mesoporous adsorbent iPCalixC5X containing 1,3-alternate calix[4]crown-5 derivative iPCalixC5 was prepared by vacuum suction. It was immobilized into the pores and channels of XAD-7, a polar carrier containing polyalkyl ester, by introduction and self-assembly. The uptake of Rb, Cs, K, and a total of 20 coexisting metals onto iPCalixC5X was investigated in the range of 0.4–6.0 M HNO3. The separation factor (SF) of Rb with Cs was 186.5 in 1.0 M HNO3 and 95.83 in 3.0 M HNO3. The Rb adsorption capacity was 0.5239 mM/g under the conditions of 298 K, 3.0 M HNO3, and a contact time of 120 min. The removal efficiency was greater than 99.6% for Rb and less than 0.22% for Cs. The Rb adsorption data fitted well with the Langmuir model, reflecting the monolayer adsorption mechanism. The thermodynamic parameters ΔH°, ΔG°, ΔS°, and some fundamental chemical engineering data of Rb adsorption were obtained. Efficient Rb removal from Cs-containing effluents by iPCalixC5X is promising.

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“…The precursors of Cu-containing material in this ternary heterojunction MOF is HKUST-1 MOF, with the periodic distribution of Cu nodes and carbon-rich organic ligand attributes for the candidacy of HKUST-1. Via implementation of apt sulfidation and calcination, C-coated Cu 2-x S (C-Cu 2-x S) tubes with the hollow structure are collected, followed by mixing of C-Cu 2-x S with g-C 3 N 4 under the hydrothermal condition to acquire C-Cu 2-x S@g-C 3 N 4 [221,222]. Many techniques have been used to characterize the topology, morphology, stability, and performance.…”

Section: Cu-based Mofmentioning

confidence: 99%

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

2019

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The accumulation of carbon dioxide (CO2) pollutants in the atmosphere begets global warming, forcing us to face tangible catastrophes worldwide. Environmental affability, affordability, and efficient CO2 metamorphotic capacity are critical factors for photocatalysts; metal-organic frameworks (MOFs) are one of the best candidates. MOFs, as hybrid organic ligand and inorganic nodal metal with tailorable morphological texture and adaptable electronic structure, are contemporary artificial photocatalysts. The semiconducting nature and porous topology of MOFs, respectively, assists with photogenerated multi-exciton injection and adsorption of substrate proximate to void cavities, thereby converting CO2. The vitality of the employment of MOFs in CO2 photolytic reaction has emerged from the fact that they are not only an inherently eco-friendly weapon for pollutant extermination, but also a potential tool for alleviating foreseeable fuel crises. The excellent synergistic interaction between the central metal and organic linker allows decisive implementation for the design, integration, and application of the catalytic bundle. In this review, we presented recent MOF headway focusing on reports of the last three years, exhaustively categorized based on central metal-type, and novel discussion, from material preparation to photocatalytic, simulated performance recordings of respective as-synthesized materials. The selective CO2 reduction capacities into syngas or formate of standalone or composite MOFs with definite photocatalytic reaction conditions was considered and compared.

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Water-resistant HKUST-1 functionalized with polydimethylsiloxane for efficient rubidium ion capture

Abstract: A thin hydrophobic layer of polydimethylsiloxane (PDMS) was successfully coated onto HKUST-1 by a facile chemical vapor deposition (CVD) approach, which enables excellent Rb(i) capture in water.

Cited by 40 publications

References 42 publications

Enhanced water-resistant performance of Cu-BTC through polyvinylpyrrolidone protection and its capture ability evaluation of methylene blue

Enhanced water-resistant performance of Cu-BTC through polyvinylpyrrolidone protection and its capture ability evaluation of methylene blue

Selective Adsorption of Rubidium onto a New 1,3-Alternate Calix[4]crown-5 Mesoporous Adsorbent with a Polar Carrier Containing Polyalkyl Ester

Recent Innovation of Metal-Organic Frameworks for Carbon Dioxide Photocatalytic Reduction

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