Effect of contact time on removal rate of sulfur at different concentrations of nanoparticles.

<p>Effect of contact time on removal rate of sulfur at different concentrations of nanoparticles.</p

Magnetization versus applied magnetic field at room temperature for sample 6.

<p>Magnetization versus applied magnetic field at room temperature for sample 6.</p

Effect of temperature on removal of total sulphur was studied at range 15–55°C.

<p>Effect of temperature on removal of total sulphur was studied at range 15–55°C.</p

Catalytic activities of sample 6 in three concentrations.

<p>(a) 4.5 g. L ^-1, (b) 9.5 g. L ^-1, and (c) 18.5 g. L ^-1.</p

EDS spectrum of sample 6.

<p>EDS spectrum of sample 6.</p

XRD pattern.

<p>(a) sample 7, and (b) sample 8.</p

FT-IR spectrum of sample 6.

<p>FT-IR spectrum of sample 6.</p

SEM image.

<p>(a) sample 1, (b) sample 2, (c) sample 3, (d) sample 4 and (e) sample 5.</p

XPS spectrum of sample 6.

<p>XPS spectrum of sample 6.</p

TEM image of sample 6.

<p>TEM image of sample 6.</p