20604
It is deduced that the positively charged nature of adsorbed clusters acting as electron trapping centers and reduction sites plays a crucial role in keeping the stability of the Ag @ AgCl system during the photocatalytic process .
 Chemical: Ag; Chemical: AgCl
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: Ag; Chemical: AgCl