Abstract
The present study reveals the feasibility of using graphene oxide (GO) functionalized with 3-mercaptopropyl-trimethoxysilane (APTMS) for the removal of Mn(ii) from aqueous solution. The APTMS bound on GO's surface was successfully confirmed by FTIR and EDX.
Highlights
Manganese (Mn) is an abundant element in the Earth's crust and its presence in drinking water is a result of leaching processes depending on rock types.[1]
The present study reveals the feasibility of using graphene oxide (GO) functionalized with 3-mercaptopropyl-trimethoxysilane (APTMS) for the removal of Mn(II) from aqueous solution
For the GO-NH2 adsorbent, the adsorption process of Mn(II) follows a pseudo-second-order kinetics model, indicating that the overall rate of Mn(II) uptake is controlled by external mass transfer at the initial stage of the adsorption
Summary
Manganese (Mn) is an abundant element in the Earth's crust and its presence in drinking water is a result of leaching processes depending on rock types.[1]. The effects of experimental parameters such as pH of solution (1–6), incubation time (0–80 min) and temperature (30–60 C) on the adsorptive removal of Mn(II) ions were studied in a batch mode of operation for a speci c period of Mn(II) concentration of 10 mg LÀ1.
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