Publications by authors named "Sang-Lan Ding"
In this study, novel macro porous Ni-imprinted chitosan foam adsorbents (F-IIP) were prepared using sodium bicarbonate and glycerine to obtain a porogen for adsorbing nickel ions from aqueous solutions. The use of the ion-imprinting technique for adsorbents preparation improved the nickel ion selectivity and adsorption capacity. We characterised the imprinted porous foam adsorbents in terms of the effects of the initial pH value, initial metal ion concentration, and contact time on the adsorption of nickel ions.
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- - A cross-linked chitosan derivative (CCTS) was created to enhance the removal of cobalt ions (Co(2+)) from water, showing improved adsorption capacity compared to raw chitosan (CTS) with maximum values of 59.51 mg/g for CCTS and 30.45 mg/g for CTS.
- - The study found that the adsorption process for both materials followed different kinetic and isotherm models; CCTS aligned with the Langmuir isotherm while CTS was better represented by Freundlich and Sips isotherms.
- - After testing, it was established that both CCTS and CTS maintained effective adsorption of Co(2+) even after five cycles of regeneration, with chemical adsorption being
NO was oxidized into NO(2) first by injecting ozone into flue gas stream, and then NO(2) was absorbed from flue gas simultaneously with SO(2) by pyrolusite slurry. Reaction mechanism and products during the absorption process were discussed in the followings. Effects of concentrations of injected ozone, inlet NO, pyrolusite and reaction temperature on NO(x)/SO(2) removal efficiency and Mn extraction rate were also investigated.
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