Insights into the performance of the two contrasting dynamic adsorption platforms in the removal of gaseous benzene on microporous carbon materials

A Study on the Gaseous Benzene Removal Based on Adsorption onto the Cost-Effective and Environmentally Friendly Adsorbent

“…The highest maximum adsorption capacities were 144 mg/g for MGB, 29.3 mg/g for GBS, 10.8 mg/g for CBN, and 79.1 mg/g for ACd212. Wang et al [55] designed a PAC-based denuder system for benzene vapor adsorption at 100, 200, 300, and 500 mL/min. The BET surface area of PAC sorbents and its capacity were obtained at 1071 and 929 m 2 /g; they were found to vary from 20 ± 1 to 43 ± 2 and 0.32 ± 002 to 0.86 ± 0.02 in packed and denuder systems.…”

Effects of gas phase composition on competitive adsorption properties of formaldehyde on titanium dioxide-supported platinum in single and mixture compositions

“…6), and intraparticle diffusion (IPD, Eq. 7) models (Liu et al, 2021a;Wang et al, 2022) were utilized to study the rate-controlling adsorption mechanism for Pt@TiO2 against FA in single and multicomponent VOCs systems.…”

TiO2-based catalytic systems for the treatment of airborne aromatic hydrocarbons

“…120 This journal is © The Royal Society of Chemistry 2023 comparison to the thermocatalytic oxidation (58.1 kJ mol À1 ). 31 During the photothermal process, the oxidation of adsorbed benzene molecules (and other intermediates (R )) into CO 2 was promoted by the generated O 2 À radicals, surface adsorbed adatoms (Os), and holes in the VB of TiO 2 through a series of radical reactions, as indicated in eqn ( 14)- (17). 146 Accordingly, the enhanced photothermal catalytic rate mainly reflects the combined effects of hybrid photo-and thermocatalytic oxidation mechanisms and the oxygen spillover effect of doped Pt NPs.…”

“…Several controllable strategies have been developed and employed for the abatement of aromatic VOCs, including incineration, 10 condensation, 11,12 membrane separation, 13 catalytic oxidation, 3,[14][15][16] and adsorption. 17,18 Among these technical options, catalytic oxidation processes (e.g., photo or thermal) are leading potential approaches for the destruction and/or oxidation of gaseous BTX without causing secondary pollution if the reaction proceeds for complete mineralization. 19,20 As a fact, the thermocatalytic approach is widely used in industrial processes for the removal of gaseous VOCs (including BTX) emitted by pharmaceutical, printing, and textile industries utilizing solvent-based processing.…”

“…Several controllable strategies have been developed and employed for the abatement of aromatic VOCs, including incineration, 10 condensation, 11,12 membrane separation, 13 catalytic oxidation, 3,14–16 and adsorption. 17,18 Among these technical options, catalytic oxidation processes ( e.g. , photo or thermal) are leading potential approaches for the destruction and/or oxidation of gaseous BTX without causing secondary pollution if the reaction proceeds for complete mineralization.…”