Understanding the unique interaction of amine-containing ionic compounds with SO2 for high absorption capacity

RSC Advances ◽  
2013 ◽  
Vol 3 (48) ◽  
pp. 25944 ◽  
Author(s):  
Hyunjoo Lee ◽  
Young Mee Jung ◽  
Keun Im Lee ◽  
Hoon Sik Kim ◽  
Ho Seok Park
Keyword(s):  
Absorption Capacity ◽  
Ionic Compounds ◽  
High Absorption

scholarly journals Capture of Acidic Gases from Flue Gas by Deep Eutectic Solvents

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1268
Author(s):  
Yan Wang ◽  
Shuhang Ren ◽  
Yucui Hou ◽  
Weize Wu
Keyword(s):  
Hydrogen Bond ◽  
Flue Gas ◽  
Deep Eutectic Solvents ◽  
Absorption Capacity ◽  
Physical Interaction ◽  
Co2 Absorption ◽  
Physicochemical Interaction ◽  
Acidic Gases ◽  
New Strategies ◽  
High Absorption

Up to now, many kinds of deep eutectic solvents (DESs) were investigated for the capture of acidic gases from flue gases. In this review, non-functionalized and functionalized DESs, including binary and ternary DESs, for SO2, CO2 and NO capture, are summarized based on the mechanism of absorption, physical interaction or chemical reaction. New strategies for improving the absorption capacity are introduced in this review. For example, a third component can be introduced to form a ternary DES to suppress the increase in viscosity and improve the CO2 absorption capacity. DESs, synthesized with halogen salt hydrogen bond acceptors (HBAs) and functionalized hydrogen bond donors (HBDs), can be used for the absorption of SO2 and NO with high absorption capacities and low viscosities after absorption, due to physicochemical interaction between gases and DESs. Emphasis is given to introducing the absorption capacities of acidic gases in these DESs, the mechanism of the absorption, and the ways to enhance the absorption capacity.

Enhanced scavenging of a minor component from mixtures of two immiscible liquids by hollow polymer microgels

2022 ◽  
Author(s):  
Mikhail V. Anakhov ◽  
Rustam A. Gumerov ◽  
Igor Potemkin
Keyword(s):  
Minor Component ◽  
Absorption Capacity ◽  
Immiscible Liquids ◽  
A Minor ◽  
Soft Nanoparticles ◽  
High Absorption

Hollow soft nanoparticles are known to be highly perspective containers with high absorption capacity of various substances. In particular, this feature can be applied in terms of solvents separation on...

Ultralight and highly compressible coal oxide-modified graphene aerogels for organic solvent absorption and light-to-heat conversion

2020 ◽  
Vol 44 (6) ◽  
pp. 2228-2235 ◽  
Author(s):  
Shengchao Hou ◽  
Yan Lv ◽  
Xueyan Wu ◽  
Jixi Guo ◽  
Qingqing Sun ◽  
...  
Keyword(s):  
Organic Solvent ◽  
Conversion Efficiency ◽  
Low Cost ◽  
Thermal Conversion ◽  
Absorption Capacity ◽  
Solar Thermal ◽  
Graphene Aerogels ◽  
Solvent Absorption ◽  
Modified Graphene ◽  
High Absorption

Ultralight, hydrophobic, highly compressible and low-cost coal oxide-modified graphene aerogels exhibit high absorption capacity and high solar thermal conversion efficiency.

Fabrication of a porous chitosan/poly-(γ-glutamic acid) hydrogel with a high absorption capacity by electrostatic contacts

2020 ◽  
Vol 159 ◽  
pp. 986-994 ◽  
Author(s):  
Guangjun Nie ◽  
Kangjin Hong ◽  
Erwei Zhang ◽  
Ning Liu ◽  
Mengmeng Wang ◽  
...  
Keyword(s):  
Glutamic Acid ◽  
Absorption Capacity ◽  
Porous Chitosan ◽  
High Absorption

scholarly journals Macroporous Oil-Sorbents with a High Absorption Capacity and High-Temperature Tolerance Prepared through Cryo-Polymerization

Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1620 ◽  
Author(s):  
Haleem ◽  
Wang ◽  
Li ◽  
Hu ◽  
Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Organic Solvents ◽  
Thermo Gravimetric Analysis ◽  
Temperature Tolerance ◽  
Absorption Capacity ◽  
Synthesis Process ◽  
Gravimetric Analysis ◽  
High Temperature Tolerance ◽  
Oil Sorbents ◽  
High Absorption

The facile preparation and admirable performance of macro-porous poly(lauryl acrylate)-based oil-sorbents for organic solvents and oils are reported in this manuscript. Cryo-polymerizations of lauryl acrylate (LA) with ethylene glycol dimethacrylate (EGDMA) as the cross-linker were carried out at temperatures below the freezing point of the polymerization mixture. The polymerization medium and pore-forming agent was 1,4-dioxane. The influences of the total monomer concentration, EGDMA content and cryo-polymerization temperature on the structure of the obtained P(LA-co-EGDMA) cryogels were investigated with the techniques of Fourier transform infrared spectroscopy, scanning electron microscopy, contact angle measurement and thermo-gravimetric analysis. Through the modulation of the crosslinking density and porosity of these cryogels, the P(LA-co-EGDMA) oil-sorbents demonstrated a high absorption capacity for organic solvents and oils, recyclability and high-temperature tolerance. The absorption capacity reached 20–21 and 16–17 g/g for toluene and gasoline oil, respectively. Those fabricated sorbents survived high temperatures up to 150 °C without any change in absorption capacity as well as porosity. Considering the convenient synthesis process and absorption performance, the present work offers a remarkable opportunity to bring polymer cryogels to practical application in waste oil clean-up.

scholarly journals An Active Absorbent for Cleanup of High-Concentration Strong Acid and Base Solutions

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3389
Author(s):  
Nara Han ◽  
Sol Park ◽  
Byung Kwon Kaang ◽  
Wooree Jang ◽  
Hye Young Koo ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Strong Acid ◽  
Absorption Capacity ◽  
Dust Particles ◽  
High Concentration ◽  
Strong Base ◽  
Base Solution ◽  
Acid And Base ◽  
Drop Tests ◽  
High Absorption

There is significant interest in developing novel absorbents for hazardous material cleanup. Iron oxide-coated melamine formaldehyde sponge (MFS/IO) absorbents with various IO layer thicknesses were synthesized. Various other absorbents were also synthesized and compared to evaluate the absorption capability of the MFS/IO absorbents for strong acid (15%, v/v) and base (50%, m/m) solutions. Specifically, absorbent and solution drop tests, dust tests, and droplet fragment tests were performed. Among the various absorbents, MFS/IO absorbents possessing a needlelike surface morphology showed several unique characteristics not observed in other absorbents. The MFS/IO absorbents naturally absorbed a strong base solution (absorption time: 0.71–0.5 s, absorption capacity: 10,000–34,000%) without an additional external force and immediately absorbed a strong acid solution (0.31–0.43 s, 9830–10,810%) without absorption delay/overflow during absorbent and solution drop tests, respectively. The MFS/IO absorbents were also demonstrated to be ideal absorbents that generated fewer dust particles (semiclass 1 (ISO 3) level of 280 piece/L) than the level of a clean room (class 100). Furthermore, the MFS/IO absorbents were able to prevent the formation of droplet fragments and solution overflow during the solution drop test due to their unique surface morphology and extremely high absorption speed/capacity, respectively.

Preparation and Characterization of Bacterial Cellulose/TiO2 Hydrogel Nanocomposite

2016 ◽  
Vol 43 ◽  
pp. 73-80 ◽  
Author(s):  
Ricardo Brandes ◽  
Letícia de Souza ◽  
Vanessa Vargas ◽  
Eliana Oliveira ◽  
Alexandre Mikowski ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Water Retention ◽  
Morphological Analysis ◽  
Sol Gel ◽  
Absorption Capacity ◽  
Ex Situ ◽  
High Tensile Strength ◽  
Hydrogel Nanocomposite ◽  
High Absorption

Bacterial cellulose (BC) is a biopolymer with interesting properties, such as biocompatibility, high tensile strength, high absorption capacity, water retention and high crystallinity. Nanoparticles of titanium dioxide (TiO2) are extremely important in electrical applications, photocatalysis, sensors and biomedical areas. Multifunctional materials, based on bacterial cellulose, with differentiated properties can be designed from the BC/TiO2 nanocomposite by ex situ method of sol-gel immersion. It was manufactured as a nanocomposite consisting of BC/TiO2 hydrogel. Characterizations were carried out by scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and fourier transform infrared spectroscopy (FTIR). The morphological analysis of nanocomposite revealed the existence of molecular interaction and adhesion between TiO2 nanoparticles and cellulosic nanofibers matrix, where the presence of Ti peaks in EDS spectra was discovered, proving the successful incorporation of nanoparticles. The FTIR showed modification on the functional groups, suggesting interaction between the components. The manufacturing of a BC/TiO2 nanocomposite by method of sol-gel immersion has a great potential for future applications.

scholarly journals New fibrilar composites on the base of biodegradable polyethers poly (3-hydroxybutyrate) and polylactide with high selective absorbtion of oil from water medium

2019 ◽  
Vol 487 (5) ◽  
pp. 528-531
Author(s):  
A. L. Iordanskii ◽  
N. A. Samoilov ◽  
A. A. Olkhov ◽  
V. S. Markin ◽  
S. Z. Rogovina ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Absorption ◽  
Absorption Capacity ◽  
Water Medium ◽  
Environmental Disasters ◽  
Polyester Fibers ◽  
High Absorption

Ultrafine polyester fibers - poly-(3-hydroxybutyrate), polylactide, and their compositions of various compositions - were obtained by electrospinning. The high absorption capacity of these fibers in relation to oil is comparable to the absorbents used, however, the advantage of the proposed systems is their biodegradability, which implies their subsequent utilization. In combination with moderate water absorption, the systems being developed can be considered as promising oil absorbents from water-in-oil environments during environmental disasters and water pollution.

scholarly journals Sintesis dan karakterisasi polimer superabsorban dari akrilamida

2018 ◽  
Vol 11 (2) ◽  
pp. 84
Author(s):  
A. Zainal Abidin ◽  
G Susanto ◽  
N.M.T. Sastra ◽  
T Puspasari
Keyword(s):  
Absorption Capacity ◽  
Synthesis And Characterization ◽  
Superabsorbent Polymer ◽  
Ammonium Persulphate ◽  
Surface Contact Area ◽  
Acrylamide Monomer ◽  
Cross Linker ◽  
Short Time ◽  
High Absorption

Synthesis and Characterization of Superabsorbent from Acrylamide Superabsorbent polymer (SAP) is a material that can absorb water in a large amount in a short time. In this research, the polymer has been synthesized from acrylamide monomer (Am) using N,N methylene bisacrylamide (MBA)as a cross-linker and ammonium persulphate (APS) as an initiator. Effects of MBA and APS on the SAP characteristic were studied by varying composition of MBA and APS each of 0.1%-wt, 0.2 %-wt, 0.6 %-wt and 1.0 %-wt. SAP was characterized by measuring its absorption capacity to distilled water. Based on the experiment, the highest absorption capacity for 1 gram SAP is 14.5 gram water. The highest absorption is produced by SAP with APS 0.2 %-wt and MBA 0.6 %-wt. Further studies by using SEM showed that SAP which had high absorption capacity contained a lot of pores with the waving surface. Therefore, the surface contact area between SAP and water is high. Keywords: acrylamide, absorption capacity, superabsorbent polymerAbstrakSuperabsorbent Polymer (SAP) merupakan polimer yang dapat menyerap air dalam jumlah yang sangat banyak. Dalam penelitian ini, polimer tersebut disintesis dari monomer akrilamida menggunakan crosslinker N,N-metilene bisakrilamide (MBA) dan inisiator amonium persulfat (APS). Pengaruh crosslinker dan inisiator terhadap karakteristik SAP dipelajari dengan melakukan variasi komposisi APS dan (MBA) masing-masing sebesar 0,1 %-b, 0,2 %-b, 0,6 %-b, dan 1 %-b. Karakteristik produk SAP dipelajari dengan FTIR untuk menganalisis gugus fungsi yang terbentuk untuk menunjukkan bahwa polimerisasi betul terjadi dan produknya berupa SAP. Pengukuran kemampuan absorpsi SAP terhadap air destilasi menunjukkan bahwa kapasitas absorpsi terbesar yang dihasilkan oleh superabsorbent polymer dari penelitian ini sebesar 14,5 gram air dalam 1 gram produk SAP yang dibuat. Kapasitas terbesar ini dimiliki oleh SAP dengan 0,2 %-b APS dan 0,6 %-b MBA. Studi lebih lanjut dengan SEM menunjukkan bahwa SAP yang memiliki kapasitas absorpsi tertinggi itu mempunyai morfologi permukaan yang berombak dan jumlah pori yang tertinggi sehingga luas permukaan kontak antara SAP dan air juga tertinggi. Kata kunci: akrilamida, kapasitas absorpsi, superabsorbent polymer

scholarly journals Enhancement of CO2 capture performance of aqueous MEA by mixing with [NH2e-mim][BF4]

RSC Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 1987-1992 ◽  
Author(s):  
Mei Wang ◽  
Mingming Wang ◽  
Na Rao ◽  
Jiale Li ◽  
Jianfen Li
Keyword(s):  
Energy Consumption ◽  
Co2 Capture ◽  
High Energy ◽  
Absorption Capacity ◽  
High Energy Consumption ◽  
Amine Solutions ◽  
High Absorption

Alcohol amine solutions have a high absorption capacity and rate for CO2 capture, however, there are some shortcomings such as high energy-consumption and low stability.

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