Читать книгу Sustainable Nanotechnology - Группа авторов - Страница 68

Since past 10 years, increase in pollution from vehicles and industries has increased emission of greenhouse gases such as CO₂, which leads to global warming. Although many alternative sources are being developed that are non‐CO₂ emitting, the world will continue to use substantial amounts of fossil fuels in the future. The upcoming alternative for excess CO₂ released in the atmosphere is the use of carbon capture and storage using nanotechnology, which gives efficient and cost‐effective separation of CO₂ [69]. Initially, conventional membranes with polymeric structures were used for separation of CO₂ due to its low cost and ease of handling [70]. Idem et al. recently studied thermally rearranged polymers that are aromatic polymers containing heterocyclic rings. These polymers have excellent chemical and thermal stability due to the presence of microporous structures that are formed by thermal rearrangement in solid state, which makes it unique for transportation of gas for separation [71].