17522
At pH 3 , mfp - 3 showed the strongest adhesion force on TiO2 , with an adhesion energy of ~ - 7 . 0 mJ / m ( 2 ) .
 Chemical: TiO2
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: TiO2