17106
The effects of NH4F addition amount , acid treatment temperature and precursor Ti content were investigated on the incorporation of F species , the zeolite structure and the coordination sites of Ti .
 Chemical: NH4F; Chemical: Ti; Chemical: F; Chemical: zeolite; Chemical: Ti
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: NH4F; Chemical: Ti; Chemical: F; Chemical: zeolite; Chemical: Ti