Chitosan-derived mesoporous carbon with ultrahigh pore volume for amine impregnation and highly efficient CO2 capture

Oxidation modification of chitosan-based mesoporous carbon by soft template method and the adsorption and release properties of hydroxycamptothecin

“…Figure 3 c and d showed that the pores of the prepared mesoporous carbon were clear with a typical worm-like structure. The results consistent with the results of chitosan-based mesoporous carbon reported by Peng et al 13 , as well as with the results of the XRD in the Fig. 2 , the TEM images demonstrated that morphology and structure of the mesoporous carbon materials did not change distinctly upon oxidatively modification through ammonium persulfate.…”

“…C and N contents were 67.82 wt% and 9.65 wt% 10 in chitosan as a cellulose-like and nitrogen-containing biopolymer 11 , with an abundant reserve, low price, renewable, good biocompatibility and environmental friendliness, in recent years, synthesis of mesoporous carbon materials increased gradually through chitosan as carbon source precursor. For example, Andrzej et al 12 and Peng et al 13 used chitosan as carbon source and colloidal SiO 2 as template to prepare mesoporous carbon. Removal of silicon by HF enabled the synthesis steps complicated.…”

Study of Amine Functionalized Mesoporous Carbon as CO2 Storage Materials

“…Introducing amine functional groups into mesoporous carbon surfaces could overcome this, as many studies have proven that the CO 2 adsorption capacity of carbonbased materials increases significantly when functionalizing its surface with nitrogen functional groups [24][25][26][27]. Another study has been conducted by Peng et al, which tested the CO 2 adsorption capacity of chitosan-derived mesoporous carbon (CDMC)-modified pentaethylenehexamine (PEHA) [28]. The results showed that the impregnation of CDMC with PEHA significantly increases the CO 2 uptake, but as the PEHA loading increases, the CO 2 uptake decreases, because it has complicated effects on CO 2 adsorption capacity-the increase in the PEHA concentration offers more nitrogen functional groups to react with CO 2 , but it also blocks the CO 2 diffusion into deep layers [28].…”

“…Another study has been conducted by Peng et al, which tested the CO 2 adsorption capacity of chitosan-derived mesoporous carbon (CDMC)-modified pentaethylenehexamine (PEHA) [28]. The results showed that the impregnation of CDMC with PEHA significantly increases the CO 2 uptake, but as the PEHA loading increases, the CO 2 uptake decreases, because it has complicated effects on CO 2 adsorption capacity-the increase in the PEHA concentration offers more nitrogen functional groups to react with CO 2 , but it also blocks the CO 2 diffusion into deep layers [28]. Activated carbon has also been used frequently as a CO 2 capture material because it is abundant, has a large surface area and excellent thermal/chemical stability and it does not require a lot of energy to regenerate [29].…”

Binary System of Polyethylene Glycol 200 (1) + 3-Dimethylamino-1-propylamine (2) for CO2 Absorption: Thermophysical Properties and Spectroscopic Study

“… 1 , 2 Experts generally deem CO 2 capture and utilization (CCU) to be one of the most effective methods to reduce global CO 2 emissions. 3 , 4 Various methods have been proposed to capture CO 2 , such as solid adsorption, 5 , 6 membrane separation, 7 , 8 and organic solvent scrubbing. 9 − 11 The organic solvent scrubbing method involves either physical or chemical solvents according to the strength of the solvent–solute interaction.…”