Presentation Title

Improvement of Efficiency in Atmospheric Filtration Systems through Carbon Nanotube Coating Methods

Start Date

November 2016

End Date

November 2016

Location

HUB 302-#132

Type of Presentation

Poster

Abstract

As Third World countries rapidly develop, there is a need for improved materials which counteract increased pollution produced by industrial growth and manufacturing. By enhancing common materials with carbon nanotubes (CNTs), many practical avenues are available in which CNTs may improve a material’s effectiveness to combat pollution. Enhancing air filtration systems with CNTs can potentially improve both their efficiency, and ability to filter harmful particulates from the atmosphere. Much in the way CNT membranes improve water purification (by allowing frictionless passage of water while rejecting pollutants), applying CNTs to air filters is expected to produce similar results. The degree to which CNTs improved standard filters was tested by way of various CNT coatings on various surfaces. Single-walled carbon nanotubes (SWNTs) with pore sizes varying from 0.4 μm to 5 μm were first used on quartz fiber, cloth, and organdy filters. The least expensive raw SWNTs (AP-SWNTs) were used with very small amounts of SWNT powder in the μg range to prepare samples. A custom instrument was assembled to test filters in parallel, and differences in performance between coated and non-coated filters were analyzed. Comparisons were also made between coated filters to determine optimum CNT coating methods which yielded the highest efficiency at the lowest cost. Volatile organic compounds (VOCs) and mono-nitrogen oxides (NOX) were introduced into the system as well, in order to analyze whether CNT coated filters were capable of purifying heavily polluted atmospheres, as increasing VOC and NOX levels are large environmental concerns.

This document is currently not available here.

Share

COinS
 
Nov 12th, 4:00 PM Nov 12th, 5:00 PM

Improvement of Efficiency in Atmospheric Filtration Systems through Carbon Nanotube Coating Methods

HUB 302-#132

As Third World countries rapidly develop, there is a need for improved materials which counteract increased pollution produced by industrial growth and manufacturing. By enhancing common materials with carbon nanotubes (CNTs), many practical avenues are available in which CNTs may improve a material’s effectiveness to combat pollution. Enhancing air filtration systems with CNTs can potentially improve both their efficiency, and ability to filter harmful particulates from the atmosphere. Much in the way CNT membranes improve water purification (by allowing frictionless passage of water while rejecting pollutants), applying CNTs to air filters is expected to produce similar results. The degree to which CNTs improved standard filters was tested by way of various CNT coatings on various surfaces. Single-walled carbon nanotubes (SWNTs) with pore sizes varying from 0.4 μm to 5 μm were first used on quartz fiber, cloth, and organdy filters. The least expensive raw SWNTs (AP-SWNTs) were used with very small amounts of SWNT powder in the μg range to prepare samples. A custom instrument was assembled to test filters in parallel, and differences in performance between coated and non-coated filters were analyzed. Comparisons were also made between coated filters to determine optimum CNT coating methods which yielded the highest efficiency at the lowest cost. Volatile organic compounds (VOCs) and mono-nitrogen oxides (NOX) were introduced into the system as well, in order to analyze whether CNT coated filters were capable of purifying heavily polluted atmospheres, as increasing VOC and NOX levels are large environmental concerns.