Layered double hydroxides (LDHs) exhibit numerous industrial applications including pollutant adsorption due to their distinctive structural chemistry. However, their adsorption efficiency is greatly reduced by sorbent loss and agglomeration. To solve this problem, we have successfully developed a strategy by interweaving layered double hydroxides (LDHs) with polyacrylonitrile (PAN) nanofibers to achieve a new versatile LDH/PAN nanocomposite film. This film is used in the design of a continuous column water treatment technology. An aqueous solution of 10 mg/L Cr(VI) can be reduced to 0.04 mg/L with 99% adsorption efficiency and a loading rate of 231 mmol/g per film at a flow rate of 4.8 mL/min. In addition, the fabricated LDH/PAN nanocomposite films are reused for at least 10 times without obvious loss of activity. As such, LDH/PAN nanocomposite films could serve as effective adsorbents that are reusable, easy to separate, and also free from adsorbent loss and agglomeration. (C) 2015 Elsevier B.V. All rights reserved.