الفهرس 
AIM OF THE WORKOnly 14 pages are availabe for public view
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Abstract
Water is exposed to pollution from the large quantities of effluent that
industry daily discharge into the rivers, sewage works, etc. With ions of
non-ferrous toxic metals such as Nickel, Cadmium, Zinc, Lead,
Magnesium, and Copper. Several techniques are available for the removal
of such ions from wastewater, including adsorption, precipitation, and
separation by using ion exchange. Adsorption is now recognized as an
effective and economic method for heavy metal removal from low-
concentration wastewater. The graphene oxide was produced from
graphite powder using a modified Hummer’s technique, then altered by
doping with acid-activated bentonite. The advantages of these materials
are due to their low cost and metal binding capacities and their ability to
remove unwanted heavy metals from contaminated water. This work
studied the Copper and Zinc adsorption behavior on modified graphene
oxide based on pH influence, equilibrium adsorption capacity, initial
concentration of metals, temperature, contact time, sorbent dosage, and
kinetic studies influence. The modified Hummer’s process was used to
generate graphene oxide, which was subsequently transformed to
modified GO by doping acid-activated bentonite with HCl, demonstrating
that modified bentonite had better adsorption qualities than natural
bentonite. The differences in the Physico-chemical properties of the
adsorbent were demonstrated using different analytical techniques such as
TEM, SEM, EDAX, FTIR, and XRD