Title

Synthesis and characterization of activated carbon-calcium carbonate nanomaterials for air contaminants filtration

Date of Completion

2018

Document Type

Thesis

Degree Name

Bachelor of Science in Biochemistry

Keywords

Air Filters.

Abstract

This study, air contaminants were allowed to pas through a filter containing activated carbon-calcium carbonate nanomaterial from coconut shells and eggshells. Activated carbon was synthesized using potassium hydroxide (KOH). The synthesized activated carbon was tested using SEM-EDX. Nano-calcium carbonate was synthesized using hen eggshells. The shells were crushed, washed, heat treated and activated using cetyltrimethylammoniunm bromide (CTAB). The synthesized nano-calcium carbonate was tested using flame test for calcium ions and anion test for carbonate ions. Filters were created using three kinds of nonwoven fabric; dry-liad, wet-laid and polymer-laid. Different ratios were applied to each fabric for comparison. To test the efficiency of the filters, two Arduino based air-monitoring systems were used and it was found out that the ration of 3:1 (2% activated carbon and 1% nano-calcium carbonate) was the most efficient filter with the presence of both activated carbon-calcium carbonate nanomaterial. The 3:1 filter that was used was tested along with the unused filter for further analysis using the SEM-EDX. This study showed that activated carbon-calcium carbonate nanomaterials are effective in filtering pollutants like carbon dioxide (CO2), carbon monoxide (CO), PM1, PM 2.5 and PM 10.

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