27912
Cyclodextrin - Functionalized Fe3O4 @ TiO2 : Reusable , Magnetic Nanoparticles for Photocatalytic Degradation of Endocrine - Disrupting Chemicals in Water Supplies .
 Fe3O4, TiO2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Fe3O4, TiO2