10147
Here we show the efficacy of graphene oxide ( GO ) for rapid removal of some of the most toxic and radioactive long - lived human - made radionuclides from contaminated water , even from acidic solutions ( pH < 2 ) .
 Chemical: graphene oxide
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: graphene oxide