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             ___      ______     ___      _  __  
    ___     / _ \\   /_____//   / _ \\   | |/ // 
   /   ||  | / \ ||  `____ `   / //\ \\  | ' //  
  | [] ||  | \_/ ||  /___//   |  ___  || | . \\  
   \__ ||   \___//   `__ `    |_||  |_|| |_|\_\\ 
    -|_||   `---`    /_//     `-`   `-`  `-` --` 
     `-`             `-`

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Text this: Atomically dispersed main group magnesium on cadmium sulfide as the active site for promoting photocatalytic hydrogen evolution catalysis