Sulfate ionic liquids impregnated 2D boron nitride nanosheets for trace SO2 capture with high capacity and selectivity

Gong, Wen-Qiang; Wu, Xian-Lu; Li, Zhang-Min; Zhou, Yan; Zhu, Wenshuai; Tao, Duan‐Jian

doi:10.1016/j.seppur.2021.118824

Cited by 14 publications

(8 citation statements)

References 37 publications

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“…34-0421). Three distinct peaks, at 43°, 50°, and 74°, corresponded to the (111), (200), and (220) planes of Cu (0) (JCPDS no 01-1242) [ 34 , 35 ].…”

Section: Resultsmentioning

confidence: 99%

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

Liu¹,

Zhou

et al. 2022

Nanomaterials

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Cu-doped boron nitride nanosheets (Cu-BNNS) were first reported as promising adsorbents for the solid-phase extraction and determination of rhodamine B (RhB) dye in a food matrix. Different characterizations, including XRD, FTIR, XPS, SEM, and TEM, were performed to confirm the formation of the adsorbent. Then, the adsorption performance of Cu-BNNS was investigated by adsorption kinetics, isotherms, and thermodynamics. Multiple extraction parameters were optimized by single-factor experiments. Under optimized conditions, the recoveries in the food matrix were in the range of 89.8–95.4%, with the spiked levels of 100 ng/mL and 500 ng/mL, respectively. This novel system was expected to have great potential to detect RhB in a wide variety of real samples.

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“…34-0421). Three distinct peaks, at 43°, 50°, and 74°, corresponded to the (111), (200), and (220) planes of Cu (0) (JCPDS no 01-1242) [ 34 , 35 ].…”

Section: Resultsmentioning

confidence: 99%

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

Liu¹,

Zhou

et al. 2022

Nanomaterials

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“…The SO 2 adsorption capacity of IL/MIL-0.7 significantly exceeds that of pristine MIL-101(Cr) at low partial pressures (below 0.1 bar). Moreover, the SO 2 uptake of IL/MIL-0.7 (0.67 mmol*g -1 ) at 0.002 bar exceeds that of MFM-300(In) (0.43 mmol*g -1 ) 15 and MFM-601 (0.24 mmol*g -1 ) [20], only lower than [TMEDA][DES]@BN (0.82 mmol*g -1 , 293 K) 41 , and P(Ph-4MVIm-Br) (1.55 mmol*g -1 ) 18 . However, these two kinds of materials exhibit lower adsorption capacity compared to IL/MIL-0.7 at 1 bar.…”

Section: So 2 Adsorption Performancementioning

confidence: 93%

“…It is well known that the content of SO 2 in industrial flue gas (such as coal combustion flue gas) is very low (about 2000 ppm) 41,44 . To confirm the practical ability of IL/MIL-0.7 to capture trace SO 2 and the feasibility of composites in the application process, the breakthrough experiment was carried out on the simulated flue gas at 298 K and 1.0 bar, that is, a ternary gas mixture SO 2 /CO 2 /N 2 (2000 ppm/15%/84.8%, v/v/v) containing 2000 ppm SO 2 with a flow rate of 40 mL*min -1 .…”

Section: So 2 Separationperformancementioning

confidence: 99%

A novel IL/MOF nanocomposite tailored for trace SO2 efficient capture based on synergistic effects

Zhao

Han

et al. 2022

Preprint

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Due to its toxicity and corrosiveness, it is of enormous significance to efficiently capture and recover sulfur dioxide (SO2) from flue gas and natural gas. Herein, a new type of IL/MIL-0.7 composite was precisely designed to meet this challenge, which exhibits a high adsorption capacity for SO2 (13.17 mmol·g-1) at 298 K and 1 bar while excludes almost completely carbon dioxide (CO2) (0.27 mmol·g-1) and nitrogen (N2) (0.07 mmol·g-1). The high IAST selectivity (at least 11925) of IL/MIL-0.7 for SO2/CO2 can be achieved within the whole test pressure range. In addition, the breakthrough experiment also confirmed the excellent performance of the composite for deep removal of 2000 ppm SO2. Furthermore, the IL/MIL-0.7 composites can maintain excellent performance after four adsorption and desorption circulations and the thermostability can up to ~450 K. Therefore, this stable IL@MOF composite has the potential application as an effective adsorbent for SO2 removal from flue gas.

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“…A phase change absorbent by mixing dibutyltrimethylsilanylmethyl-amine with dimethyl silicone oil has been proved to be able to selectively absorb SO 2 . In recent years, ionic liquids (ILs) − and deep eutectic solvents (DESs) − have drawn increasing attention in FGD for their excellent desulfurization and regeneration performance. A variety of ILs and DESs based on azoles ,,, have been successfully used for efficient absorption of SO 2 .…”

Section: Introductionmentioning

confidence: 99%

Reversible and Efficient Absorption of SO₂ with Natural Amino Acid Aqueous Solutions: Performance and Mechanism

Wang

et al. 2022

ACS Sustainable Chem. Eng.

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In previous research, we have found and reported for the first time that β-alanine aqueous solution could be employed to efficiently separate SO 2 from flue gas. However, the performance of most natural amino acids (AAs) on SO 2 absorption and their interaction mechanisms are not fully understood. In this work, the performance of 20 natural AA aqueous solutions on SO 2 absorption from flue gas was systematically studied. The experimental data showed that monoamino AAs (MAAs) exhibited good absorption performance, especially glycine, of which the saturation uptake of SO 2 reached 0.461 g/g. All the MAAs showed excellent regeneration performance, while the polyamino AAs of lysine, arginine, and histidine performed poorly. Based on the characterization and analysis using Fourier transform infrared spectroscopy, Raman spectroscopy, 13 C-nuclear magnetic resonance, and the density-functional theory simulation, it was found that the interaction mechanism between MAA aqueous solutions represented by glycine and SO 2 is complex, including the hydrolysis of SO 2 and the protonation of MAAs, the formation of hydrogen bonds between cationic MAAs and HSO 3 − , and the interaction between zwitterionic MAAs and SO 2 . In addition, cationic glycine could form a carboxylic acid dimer, which further interacted with HSO 3 − through hydrogen bonds.

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Sulfate ionic liquids impregnated 2D boron nitride nanosheets for trace SO2 capture with high capacity and selectivity

Cited by 14 publications

References 37 publications

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

A novel IL/MOF nanocomposite tailored for trace SO2 efficient capture based on synergistic effects

Reversible and Efficient Absorption of SO₂ with Natural Amino Acid Aqueous Solutions: Performance and Mechanism

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Sulfate ionic liquids impregnated 2D boron nitride nanosheets for trace SO2 capture with high capacity and selectivity

Cited by 14 publications

References 37 publications

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

Cu-Doped Boron Nitride Nanosheets for Solid-Phase Extraction and Determination of Rhodamine B in Foods Matrix

A novel IL/MOF nanocomposite tailored for trace SO2 efficient capture based on synergistic effects

Reversible and Efficient Absorption of SO2 with Natural Amino Acid Aqueous Solutions: Performance and Mechanism

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Reversible and Efficient Absorption of SO₂ with Natural Amino Acid Aqueous Solutions: Performance and Mechanism