This book humbly offer to remove pollutants using nanotechnology technique, described by the simple and easy way how to produce carbon nanotube and how to develop it to increase its efficiency does not Saale contaminants (copper (II)), which we have taken as an example to prove the efficiency of this technique. Some of the techniques we used to clarify characteristics to get accurate information on the best conditions for a removal process. We wish to be covered from the dark side