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  ______    _____     ____       ___      _____   
 /_   _//  |  ___||  |  _ \\    / _ \\   / ____|| 
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   `-`'    `-----`   `-` --`  `-`   `-`   `----`

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Text this: Graphene oxide enwrapped Ag3PO4 composite: towards a highly efficient and stable visible-light-induced photocatalyst for water purification