The 2nd International Conference on Nanotechnology and Environmental Issues (ICNEI'17) aims to become the leading annual conference in fields related to nanotechnology and environmental issues. The goal of ICNEI'17 is to gather scholars from all over the world to present advances in the relevant fields and to foster an environment conducive to exchanging ideas and information. This conference will also provide an ideal environment to develop new collaborations and meet experts on the fundamentals, applications, and products of the mentioned fields. ICNEI'17 is part of the 2nd World Congress on Recent Advances in Nanotechnology (RAN'17). For more information about the congress, please visit the website here: www.rancongress.com.