Researchers from China developed an environmentally friendly and effective sorbent based on peat algae (Sfagnum), which can selectively absorb oil and oil products from Sudan. Published in İş Magazine Scientific Reports (SR).
Every year, leaks from drilling platforms, pipelines accidents and accidents of oil ships fall into hundreds of tons of oil reservoirs. This leads to the death of aquatic ecosystems, the destruction of food chains and damaging human health. In this context, scientists are looking for affordable and environmentally friendly ways to actively combat pollution.
Sphagnum attracted the attention of researchers because of its porous structure, but it is natural in its natural form – that is, it absorbs water, not oil. To change this, scientists treated the moss with hydrogen peroxide and sodium hydroxide solutions and then applied a thin silicon polymer layer on the surface. This made oleophilic by pulling algae water and at the same time.
After modification, the material showed extraordinary properties: 22.76 grams of engine oil per 1 gram of algae and maintain more than 90% of its activity even after 10 usage cycles. For comparison, most other biosorbanes, such as fruit peel or cotton, show significantly less activity and quickly lose its properties.
The secret of high efficiency is in the process of chemosorption when strong chemical bonds occur between the fat molecules and the modified surface of algae. This provides the reliable reliability of pollution and resistance to multiple use.
Previously, scientists open The secrets of crystallization of salt in nanothelial.
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Source: Gazeta
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