Efficiency increase in hypercrosslinked polymer based on polystyrene in CO2 adsorption process

Penchah, Hamid Ramezanipour; Ghaemi, Ahad; Ghanadzadeh, H.

doi:10.1007/s00289-021-03678-x

Cited by 20 publications

(8 citation statements)

References 64 publications

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“…Their advantages are moderate synthetic conditions, inexpensive monomers and reagents, easy functionalization, microporosity and high surface area, robust structures, and good thermal and chemical stabilities. 108,109 HCPs can be prepared via the Friedel–Crafts reaction from (i) the crosslinking of polystyrene-type precursors in their swollen state, 110,111 (ii) one-step self-polycondensation, 112,113 and (iii) external crosslinking strategies. 109,114–116 Using these methodologies, HCPs can be tailored into efficient porous adsorbents with customized porosity and functionalities for CO 2 capture applications.…”

Section: Amine Functionalization Hyper-crosslinked Polymers (Hcps)mentioning

confidence: 99%

Amine-functionalized porous organic polymers for carbon dioxide capture

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Section: Amine Functionalization Hyper-crosslinked Polymers (Hcps)mentioning

confidence: 99%

Amine-functionalized porous organic polymers for carbon dioxide capture

et al. 2022

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“…Optimal CO 2 adsorption (222 mg/g at 5 bar) was achieved at 14.6 h reaction time, with 0.01 mmol polystyrene, 15 mmol FeCl 3 , and 17.7 mmol FDA (the schematic representation is given Figure 7G, also including the effect of pressure and time on the adsorption capacity, Figure 7H). 73 Other examples of HCP based on polystyrene have been summarized by Castaldo et al 5 H 2 storage is also receiving a lot of attention due to the need to replace fossil fuels and to provide alternative means of energy. Rami ́rez-Vidal et al 6 evaluated H 2 storage up to high pressures of 14 MPa.…”

Section: Hyper-cross-linked Polymersmentioning

confidence: 99%

Eco-Friendly Production of Hyper-Cross-Linked Polymers Using Mechanosynthesis and Bioresources: A Critical Review

Borrero-López

Celzard

Fierro

2022

ACS Sustainable Chem. Eng.

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Hyper-cross-linked polymers (HCPs) are receiving great attention due to their high specific surface areas, allowing them to offer high performances in many different applications. However, most of the time, their syntheses require hazardous and time-consuming protocols, making their implementation and scaling up difficult. To overcome this problem, a relatively old technology such as mechanosynthesis (MS) has gained renewed interest as a greener and faster technology to produce HCPs, which involves much lower energy consumption during the reaction process. In this perspective, the latest advances on the performances of HCPs based on MS protocols are compiled and analyzed, subdivided into those based on Friedel–Crafts alkylation, Scholl coupling reactions, and other less common procedures. An analysis of MS versus solvent-based protocols regarding the 12 principles of green chemistry is also reported, as well as a section including a summary of the most recent applications of HCPs. Finally, the use of biobased precursors for the formulation of HCPs is discussed, thus pooling knowledge for greener, faster, and more widely applicable future development of HCPs.

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“…6a, since the saturation of active sites is not completed on the adsorbent, increasing the amount of adsorbent causes a decreasing trend in the adsorption capacity of the adsorbent. As the amount of adsorbent increases, the total capacity of the active sites in the adsorbent level is not fully utilized, and the value of adsorption per unit mass of the adsorbent decreases (Ramezanipour Penchah et al 2021a).…”

Section: Adsorption Studiesmentioning

confidence: 99%

“…The equilibrium times of Pb(II) adsorption are different in similar works. The reason for this matter is related to adsorbent structure because the nature of binding sites is different for various adsorbent (Ramezanipour Penchah et al 2021a).…”

Section: Adsorption Studiesmentioning

confidence: 99%

“…The most widely studied hyper-cross-linked material has been the Davankov-type resins prepared from polystyrene networks (Martín et al 2011). These materials with a high BET surface area of about 2090 m 2 /g have been utilized as adsorbents for organic contamination of water, organic vapor absorbers, and chromatography (Ramezanipour Penchah et al 2020Penchah et al , 2021a. Other features of HCPs have included high strength and scalability, excellent temperature stability, high chemical stability compared to secure bases and acids, comparatively low heat adsorption relative to other adsorbents, and its high production capability (Ariffin et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Potential of hypercrosslinked microporous polymer based on carbazole networks for Pb(II) ions removal from aqueous solutions

Haratbar

Ghaemi

Nasiri

2021

Environ Sci Pollut Res

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In this research, porous adsorbents of hypercrosslinked microporous polymer based on carbazole networks (HCP-CN) were synthesized for Pb(II) elimination from wastewaters. The results demonstrated that the extreme HCP-CN adsorbents utilization in wastewater treatment could remove more than 99.88% of Pb (II) ions. Furthermore, the two consumed adsorbents similarly indicated rapid adsorption kinetics, and it merely took a while to achieve adsorption equilibrium. These characteristics showed that HCP-CN adsorbent was an outstanding candidate for Pb(II) elimination from wastewater. Besides, the thermodynamic characteristics involving Gibbs free energy change (ΔG 0 ), entropy change (ΔS 0 ), and enthalpy change (ΔH 0 ) of the adsorption procedure were evaluated, and the results affirmed that the adsorption process was exothermic and spontaneous. In addition, response surface methodology (RSM) as a statistical investigation was used to optimize adsorption factors to obtain maximum adsorption capacity and investigate the interactive effect of parameters using central composite design (CCD). Optimum conditions obtained by RSM for maximum adsorption capacity of 26.02 mg/g are 35 °C, 40 mg/L, 11, 60 min, and 99.88 for temperature, initial concentration, pH, time, and removal percent, respectively. In the kinetic modeling study, the second-order model was selected as the best model. The values R 2 at temperatures 35 °C, 40 °C, and 55 °C are 0.997, 0.9997, and 0.998, respectively. In the isotherm modeling, Hill model with a value R 2 of 0.9766 has a superior precision compared to the other isotherm models. Also, the values of ΔH and ΔS at Pb(II) concentration of 60 mg/L are 122.622 kJ/mol and 0.463 kJ/mole K, respectively.

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Efficiency increase in hypercrosslinked polymer based on polystyrene in CO2 adsorption process

Cited by 20 publications

References 64 publications

Amine-functionalized porous organic polymers for carbon dioxide capture

Amine-functionalized porous organic polymers for carbon dioxide capture

Eco-Friendly Production of Hyper-Cross-Linked Polymers Using Mechanosynthesis and Bioresources: A Critical Review

Potential of hypercrosslinked microporous polymer based on carbazole networks for Pb(II) ions removal from aqueous solutions

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