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

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Text this: Photocatalytic degradation of methylene blue by Zn<inf>2</inf>SnO<inf>4</inf>-SnO<inf>2</inf> system under UV visible radiation