Me–N–C (Me = Fe, Cu, and Co) nanosheet as a promising charge-controlled CO2 capture material

2018 ◽  
Vol 6 (26) ◽  
pp. 12404-12410 ◽  
Author(s):  
Xiaofang Li ◽  
Lei Zhu ◽  
Xiao Chang ◽  
Daliang He ◽  
Qingzhong Xue ◽  
...  
Keyword(s):  
Charge State ◽  
Co2 Capture ◽  
Promising Candidate ◽  
Desorption Process ◽  
Adsorption And Desorption

This figure represents a controlled CO2 adsorption and desorption process on C3N nanosheet by tuning charge state, demonstrating M–C–N nanosheet is a promising candidate for CO2 capture.

Adsorption and desorption equilibrium of Li4SiO4-based sorbents for high-temperature CO2 capture

2022 ◽  
Vol 429 ◽  
pp. 132236
Author(s):  
Shuzhen Chen ◽  
Jinze Dai ◽  
Changlei Qin ◽  
Weiyang Yuan ◽  
Vasilije Manovic
Keyword(s):  
High Temperature ◽  
Co2 Capture ◽  
Adsorption And Desorption ◽  
Desorption Equilibrium

scholarly journals CO2-philic moderate selective layer mixed matrix membranes containing surface functionalized NaX towards highly-efficient CO2 capture

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15542-15553 ◽  
Author(s):  
Mohammad Salehi Maleh ◽  
Ahmadreza Raisi
Keyword(s):  
Co2 Capture ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Promising Candidate ◽  
Selective Layer ◽  
Highly Efficient ◽  
Industrial Gases ◽  
Matrix Membranes

A functional moderate selective layer mixed matrix membrane (F-MSL-MMM) is a promising candidate to obtain superior separation of industrial gases, compared to commonly mixed matrix membranes.

Preparation of covalent triazine frameworks with imidazolium cations embedded in basic sites and their application for CO2 capture

2017 ◽  
Vol 5 (18) ◽  
pp. 8576-8582 ◽  
Author(s):  
Kwangho Park ◽  
Kwangyeol Lee ◽  
Hyunuk Kim ◽  
Vinothkumar Ganesan ◽  
Kanghee Cho ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Rational Design ◽  
Promising Candidate ◽  
Basic Sites ◽  
Imidazolium Cations

Functionalized covalent triazine frameworks (CTFs) realized by rational design of the monomer have been recognized as a promising candidate to achieve improvements in various applications.

scholarly journals Adsorption and Desorption Behavior of Herbicide Mefenpyr-diethyl in the Agricultural Soils of Morocco

2018 ◽  
Vol 7 (5) ◽  
pp. 386-395 ◽  
Author(s):  
Abdellah El Boukili ◽  
Nidae Loudiyi ◽  
Ahmed El Bazaoui ◽  
Abderrahim El Hourch ◽  
M'Hamed Taibi ◽  
...  
Keyword(s):  
Organic Matter ◽  
Adsorption Capacity ◽  
Agricultural Soils ◽  
Organic Matter Content ◽  
Matter Content ◽  
Isotherm Models ◽  
Desorption Process ◽  
Adsorption And Desorption ◽  
Total Percentage ◽  
Adsorption Isotherm Models

The present study was conducted in order to investigate the adsorption and desorption behavior of Mefenpyr-diethyl (MFD) using the batch equilibration technique in four soils, with different ranges of organic matter content, from different regions of Morocco orders of Benimellal (Soil 1), Settat (Soil 2), Sidi Bettach (Soil 3) and EL Hajeb (Soil 4). The adsorption isotherm models Langmuir, linear and Freundlich were used to compare the adsorption capacity of the soils. The results indicated that the Freundlich equation provided the best fit for all adsorption data. The values of KF and Kd ranged from 4.45 to 15.9 and 4.30 to 18.30 L.kg-1 , respectively. The calculated total percentage of desorption values from the Soil 1, Soil 2, Soil 3 and Soil 4 after the four desorption process were 59 %; 55,6 %; 37,5 % and 52,5%, respectively. Highest adsorption and desorption were observed in soil 1, and the lowest was in soil 3. According to the adsorption and desorption results, organic matter and clay seemed to be the most important factors influencing the adsorption capacity of MFD.

Characteristics of Dynamics Sorption Isotherms of Date Flesh Powder Rich in Fiber

2016 ◽  
Vol 12 (5) ◽  
pp. 469-480 ◽  
Author(s):  
Mohammad Fikry ◽  
Alhussein M. Al-Awaadh
Keyword(s):  
Moisture Content ◽  
Water Activity ◽  
Sorption Isotherms ◽  
Isosteric Heat ◽  
Phoenix Dactylifera ◽  
Dynamic Vapor Sorption ◽  
Desorption Process ◽  
Adsorption And Desorption ◽  
Peleg Model ◽  
Wide Range

Abstract Dynamic vapor sorption equipment (AQUADVS) was used to determine adsorption and desorption isotherms for powder rich in fiber (PRF) produced from Palm Date flesh of Sifri cultivar (Phoenix dactylifera L.) at temperatures 25, 35 and 45 °C in a wide range of water activity (0.09–0.87). Equilibrium was achieved within 29 and 25 h for the adsorption and desorption process respectively. The obtained data were fitted to ten models (Peleg, GAB, BET, Halsey, Oswin, Smith, Modified Henderson, Adam and Shove, Modified Oswin and Modified Halsey). The results indicated that the PRF followed type III behavior. The empirical Peleg model was found to be the best to represent the experimental data in the water activity range 0.09–0.87. The isosteric heat of sorption and the differential entropy decreased by increasing the moisture content and can be predicted by polynomial functions. Glass transition temperatures (Tg) of PRF were determined. The Tg decreased as the moisture content increased and can be correlated using the Gordon and Taylor model (R2=0.976). The PRF should be stored at moisture less than 9 d.b.% and temperature less than 35 °C.

EFFECT OF GRAIN SIZE AND ACTIVATION TIME OF ZEOLITE TO ADSORPTION AND DESORPTION OF NH4OH AND KCL AS MODEL OF FERTILIZER-ZEOLITE MIX

Konversi ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 21 ◽  
Author(s):  
Muhammad Prasanto Bimantio
Keyword(s):  
Grain Size ◽  
Rate Constant ◽  
Adsorption Process ◽  
Activation Time ◽  
Desorption Process ◽  
Adsorption And Desorption ◽  
Catalyst Carrier ◽  
Three Samples ◽  
Research Procedure ◽  
Desorption Rate Constant

Abstract - Zeolites can be used as adsorbent, ion exchange, catalyst, or catalyst carrier. Application of fertilizer use in the zeolite also be one of the interesting topic. Zeolites in a mixture of fertilizer can use to control the release of nutrients. The purpose of this research is to study the effect of grain size and time of the activation of zeolite to adsorption and desorption of NH4OH and KCl as modeling of ZA and KCl fertilizer, to obtain the value of adsorption rate constant (ka) and desorption rate constant (kd). This research procedure include: the process of adsorption by adding zeolite with various size and time of activation into a sealed beaker glass and let the adsorption process occurs for 24 hours. After 24 hours, the solution was filtered, the zeolite then put in 100 ml of aquadest into a sealed beaker glass and let the desorption process happened for another 24 hours. Three samples with the largest difference solution concentrations looked for the value of the ka and kd. Zeolite configuration with the largest ka is trialed with fertilizer and compared with the value of ka obtained from modeling. The result for NH4OH adsorbate, -50+60 mesh 2 hours configuration zeolite give the largest ka. For KCl adsorbate, -30+40 mesh 4 hours configuration zeolite give the largest ka. The value between modeling and trials with fertilizers are not much different. Keywords: zeolite, ZA fertilizer, KCl fertilizer, mathematical modelling.

Sign in / Sign up

Export Citation Format

Share Document