Although most of the earth is covered with water, only a small part of the water is clean and available for human use. Therefore, as long as possible, this kind of resources must be recycled. The current purification technology can not fully treat the extremely hot wastewater produced by some industries. In ACS Applied Materials & interfaces, researchers from the University of Alberta in Canada proposed the method of embedding amine enhanced nano diamond particles into the film, which can solve this problem.
The team attached amines to the nanodiamonds and soaked them in ethyl acetate solution to prevent the spheres from caking. Then, a monomer is added to react with amines to form a chemical connection with traditional membranes. The synergistic effect of amine linking and ethyl acetate treatment makes the film thicker and the temperature more stable, which helps to improve its performance. The researchers enhanced the content of nano ions by increasing the amine content in the membrane. Compared with the membrane without nano ions, they also obtained higher filtration rate and a larger proportion of impurities removed even after 9 hours at 167 degrees Fahrenheit. The researchers say the membrane produced by the new method can be more effective in treating wastewater at high temperatures.