Sawdust wastes-derived porous carbons for CO2 adsorption. Part 2. Insight into the CO2 adsorption enhancement mechanism of low-doping of microalgae

CO2 Capture from Porous Carbons Developed from Olive Pruning Agro-Industrial Residue

“…In response to this problem, many promising new materials have been developed to capture gases polluted with CO 2 and NO 2 . − A variety of solid physical adsorbents have been considered for the capture of these gases, such as microporous and mesoporous structures based on carbon (activated carbon (AC) and carbon molecular sieves), mesoporous siliceous materials, zeolites, and metal–organic frameworks (MOFs), metal oxides, and others. − Commercial ACs are usually obtained from nonrenewable materials such as waste oil, coal, and wood, making them an expensive product . Research efforts have been directed, in particular, at the use of waste as raw material and environmentally friendly processes to reduce costs in the synthesis process and the regeneration stage. , …”

Nitrogen-Enriched Carbon Aerogels Derived from Polybenzoxazine Cross-Linked Graphene Oxide-Chitosan Hybrid Matrix with Superior CO2 Capture Performance

“…15,16,18,33,34 Pyrolysis of solids enhances the pore structure of sorbents due to the evaporation of organic fragments during thermal decomposition. [7][8][9][10][14][15][16][17]25 The mechanism of pore space creation during the pyrolysis process enhances pathway interconnections, which are needed for CO 2 adsorption. Therefore, in comparison with the initial aerogels, thermal treatment at elevated temperatures of organic samples yields promising CAs with significant BET surface areas and an increase in pore volumes.…”

“…The development of efficient technologies and advanced materials for CO 2 capture and storage (CCS) has received tremendous attention during the last decides. Among the separation methods, absorption, adsorption, membrane separation, and cryogenic separation are commonly employed techniques for CO 2 removal from gas mixtures. − In the past few years, the adsorption technique has been considered to be a potential method to reduce the release of CO 2 to atmosphere due to its advantages, including a high CO 2 capture efficiency with an excellent adsorption selectivity, repeated adsorption and desorption cycle times, and lower energy requirement for adsorbent regeneration as compared with that needed for amine-based absorption solvents. , Numerous achievements have been described in the literature for the development of different highly effective porous materials for CO 2 adsorption. − For examples, supported amines, ,, carbon-based sorbents, ,,− polymeric porous organic materials, metal organic frameworks, hollow fibers, and amine-modified silica materials have been considered as potential adsorbents for CO 2 capture.…”

Orange Peel Biochar–CdS Composites for Photocatalytic Hydrogen Production

“…Its excellent ion exchange capacity and high stability make it a suitable material for pollution control [10]. To date, biochar materials from agricultural waste have been introduced for the preparation of composites for the photocatalytic removal of organic pollutants from water as well as for the production of hydrogen through water decomposition, supercapacitors, fuel cells, CO 2 adsorption, and energy storage [11][12][13][14]. More importantly, the synergistic effect of biochar with other metals or metal oxides can enhance the adsorption capacity of biochar-based catalysts, increase the visible light absorption, improve the separation of photogenerated electrons and holes, and reduce the bandgap, thereby improving the photocatalytic performance of biochar-based catalysts [15][16][17][18].…”