Effect of adsorption of nitroaromatic compounds on the characteristics of bound water layers in aqueous suspensions of activated carbons

Relationship between Structural Characteristics of Activated Carbons and Their Concentrating Efficiency with Respect to Nitroorganics

“…7). The f V (R p ) and f S (R p ) distributions for S0-S3 samples are very close (however, at a lower regularization parameter value than that used in this work, one can find a larger difference in f V (R p ) for S0 and S1-S3 samples (36), and at R p > 3 nm, the f V (R p ) intensity is very low, in contrast to those of other samples (S4-S8), which are characterized by a relatively greater contribution of the mesoporosity. Clearly, the contribution of narrow pores in f S (R p ) (Fig.…”

“…A model of slitlike micropores and cylindrical mesopores was applied. According to Nguyen and Do (33), this method is valid not only for mesopores but also for micropores, which has been confirmed in many of the investigations of different adsorbents (34)(35)(36) by comparing f (R p ) and f (E) distributions computed with several methods (Barrett-Joyner-Halenda, MP, HK, etc. ).…”

Influence of Organics on the Structure of Water Adsorbed on Activated Carbons

“…Less acidic carboxyls and hydroxy lactone groups were titrated using 0.05 M Na 2 CO 3 (pK 2 = 10.75); hydroxyls akin to the phenolic type were titrated by 0.1 M NaOH (pK a = 15.47), and carbonyl groups were titrated using 0.1 M NaOC 2 H 5 dissolved in ethanol ( Table 3). The structure of surface functional groups on A2PS-i samples was studied in detail elsewhere (16). …”

Adsorption performance and mechanism of 2,4,6-trinitrotoluene on a novel adsorption material polyvinylbenzyl acid/SiO2

“…Due to its toxic and mutagenic effects to many living organisms, increasingly rigorous limits on the amount of TNT that can be manufactured and released have been established worldwide. For the treatment of wastewater containing TNT, adsorption with various adsorption materials, such as activated carbon [1][2][3][4], degradation with various microorganisms [5][6][7], and destruction through catalytic, as well as advanced oxidation employing UV and hydrogen peroxide [8][9][10][11][12] have been studied extensively. However, some problems have been identified, such as lower adsorption capacity and high costs, etc.…”