Date of Graduation

5-2015

Document Type

Thesis

Degree Name

Bachelor of Science in Biomedical Engineering

Degree Level

Undergraduate

Department

Biomedical Engineering

Advisor

Tian, Ryan

Abstract

When levels of heavy metal ions such as nickel (Ni), copper (Cu), lead (Pb), Zinc (Zn), and Cobalt (Co) exceed the tolerance values for industrial wastewater, it can devastate the environment as well as the health of the individuals consuming the water. Heavy metal ions are not biodegradable and will accumulate in organic matter.(1) This accumulation leads to toxic levels in the blood and hence damage to nerve tissue, kidneys, the liver, and other vital organs. (2) Effective removal processes of these heavy metals from water must be developed. This study explores a method to adsorb nickel from water with graphene-based materials. Adsorption is used because it is cost effective and relatively simple. Concentration and pH dependent batch tests were performed to measure the nickel adsorption onto graphene oxide that had been prepared via the Hummer’s method. Our results show graphene oxide uptake values reached up to 365.9 mg of Ni(II) per gram of GO. The results also demonstrate that there was a strong impact from pH on graphene oxide uptake of Ni(II).

Share

COinS