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Abstract
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The achievement of high-efficiency water/oil separation has significant
meaning for maintaining environment and diminishing economic losses;
however, there is some challenge at the same time. In this study, the oil-
water mixture was separated with simple and low-cost quantum dots metal
for the first time by using one-step Nano porous activated carbon (AC)/
Tungsten disulfide (WS2
) quantum dots (QDs) stainless still mesh (SSM)
as a super hydrophilic and petroleum-based substrate. Nano porous AC/
WS2
QDs was synthesized and characterized by various XRD, FTIR, SEM/
Map, TEM, BET-BJH, PL and CA techniques. The results showed that
the solvent type is also effective in the amount of its separation from oil.
The effect of water-to-solvent ratio and pH was investigated. Based on the
results of petrol with a water-to-solvent ratio of 40/20 at pH=7 and at a time
of 14 seconds, 99.99% was separated by Nano porous AC/WS2
QDs/SSM
with flux over 6000 Lm−2h−1. In order to investigate the effect of solvent
of different water and solvent ratios, volumetric ratios of 20/20, 20/40 and
40/20 were examined as a mixture at pH=7. The results showed that the
AC/WS2
QDs/SSM of the repeatability cycle is 25 times and its duration to
30 seconds. The results of kinetic studies showed that the pseudo second
order kinetic model was in good agreement with the experimental data.
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