Abstract: Nanomaterials, due to their unique physical and chemical characteristics such as strong capacity of adsorption and high efficiency of catalysis, can not only overcome many shortcomings from the conventional remediation of contaminated water and soil, but also display higher remediation efficiency. Therefore, utilizing nanomaterials to remedy contaminated environment is becoming a research hotspot. This paper summarized the research progress in the applications of nanomaterials (including nanoiron, surface-modified nanomaterials, and nanochelating agents) in remediation of contaminated water and soil, and proposed some key issues in the research and application of nanomaterials in environmental science and engineering.

Key words: Bemisia tabaci, Eretmocerus sp, Aschersonia aleyrodis, Effectiveness