Developed by IIT Delhi Researchers
Report inputs by Alka Singh
Delhi, Aug 26: Researchers at Indian Institute of Technology (IIT) Delhi have developed a modified cotton fabric named ZIF-8@CM Cotton and ZIF- 67@CM Cotton (Zeolite Imidazolate Framework (ZIF) CarboxyMethelated (CM)).
These fabrics can absorb high levels of organic air pollutants like benzene, aniline, and styrene. Long term exposure to these pollutants is harmful.
The cotton fabric is made using a technique known as in-situ (in the original space) growth of ZIF-8 and ZIF-67 nanocrystals on the carboxymethylated (adding carboxymethyl compound) cotton fabric using a rapid water-based textile finishing approach. This has the capacity of absorbing 400-600% more Volatile Organic Compounds (VOC)s than ordinary cotton fabrics.
The modified cotton fabric can be used in protective garments. It can be used in upholstery in closed areas such as homes, offices, theatres, aeroplanes, and other vehicles. This particular type of cotton is cost effective (does not cost a lot) and is suitable for Indian conditions. It can also be washed easily. When the fabric is heated to 120o C, it regenerates its full absorption capacity.
