Graduate Student Highlight: Hooman Amid

Name:  Hooman Amid

Degree Program:  Ph.D. in FPS

Advisor(s):  Dr. Benoit Maze, Prof. Behnam Pourdeyhimi, and Prof. Michael C. Flickinger

Degrees you have:  B.Sc. and M.Sc. in Textile Technology Engineering (Tehran Polytechnique)

Where are you from?  Tehran, Iran

What is your town / country like?   Tehran is a metropolis and is packed with hospitable people and restaurants. Iran is a four-season country with so many sceneries, tasty dishes, and historical sites and landscapes. I highly recommend visiting it!

Why did you decide to pursue your degree at NC State University?

Looking for the top Textile Science & Engineering school, COT (Wilson College of Textiles) was always the search result. I had also experienced the level of knowledge that COT affiliates had, my Master’s instructor (1967 COT Ph.D. Graduate) and current COT professors at Asian Textile Conference ATC-11 in Seoul South Korea. I realized how great my choice was after arriving in Raleigh and visiting NC State. It has helped me excel in the field and I am looking forward to making an impact and giving it back.

Give a short description of your research:

There is a growing environmental concern about toxic pollutants and contaminants in air and water. Adsorptive nonwovens are used to filter out these toxics from the bulk. Increasing the adsorption capacity of these media is critical to the efficiency and lifetime of such filtration media. Adsorption sites are from the high surface area adsorbents, incorporated within the nonwovens. These sites are vulnerable to coverage and/or exhaustion when incorporated in such hybrid media. In addition, nonwoven filters that are highly loaded with adsorbents suffer from high pressure drops and energy-cost issues. My research is trying to solve these issues by developing a new hybridization technology and establishing the structure-property relationship in such media. This is an industrial-scale technology capable of manufacturing high-capacity low-pressure-drop adsorptive nonwoven filters.

How does your research impact the world? Contributing to the public health and providing a better environment by delivering clean air and water at lower cost.

Have you published your work yet and/or received any awards?  If you have published, please provide the citation and an abstract appropriate at the high school science level:

Amid H et al., “Hybrid Adsorbent Nonwoven Structures: A Review of Current Technologies.” Journal of Materials Science (2016).

Abstract: Adsorptive nonwoven substrates are composite media that contain adsorbent materials within their fibrous structure; the methods to incorporate adsorbents in nonwoven webs determine their adsorption capacity. The key objective for hybridization is to immobilize the adsorbent while controlling the packing density and pressure drop of the composite media. Loading percentage of adsorbents, the accessible portion of their surface area, their attachment and stability within the structure, and time/cost/process to incorporate them is different for each hybridization technique. The general limitations associated with hybrid adsorptive nonwovens are summarized as surface area loss, process control and production time/cost. The primary focus of this review is on hybridization techniques that incorporate activated carbons and/or metal-organic frameworks (MOFs) in nonwoven structures, used in gas filtration. It was concluded that coating, thermal bonding, lamination, and coform methods have higher throughputs compared to electrospinning. In addition, coform method provides better control over accessible surface area of adsorbents.

What is your favorite thing about TECS / NC State?  The friendly and helpful community of staff, faculty and students.

Who has influenced you most during your research here and how?

My advisors have all helped me be where I am, research-wise and personality-wise. My research is a package and so are its contributors. Dr. Mazé, my advisor, has taught me how to pay attention to details and be efficient while solving problems. Prof. Pourdeyhimi, my co-advisor, has a valuable interdisciplinary insight into the industry and has taught me to always think about the big picture. Prof. Flickinger, my co-advisor, has improved my critical thinking by asking underlying scientific questions. Combined, they have helped me to be able to identify and solve problems using my transferable skill sets.

What do you find most exciting about your field of study?

The state of science and technology is becoming more and more interdisciplinary. I am fascinated by how my studies have prepared me to contribute to this bigger world of us.