17107
Fluorine - implanting improved the surface hydrophobicity of the zeolite and altered the electropositivity nearby the tetrahedral Ti sites through forming the SiO3 / 2F and SiO4 / 2F ( - ) units .
 Chemical: Fluorine; Chemical: zeolite; Chemical: Ti; Chemical: SiO3; Chemical: 2F; Chemical: SiO4; Chemical: 2F ( - )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Fluorine; Chemical: zeolite; Chemical: Ti; Chemical: SiO3; Chemical: 2F; Chemical: SiO4; Chemical: 2F ( - )