MVC criar database

Estou usando um sistema MVC para criar uma aplicação, e uma das funções do sistema é criar um novo banco de dados. Porém, não sei como faço para escolher a collation e nem cria nenhuma database nova.

Controller:

<?php

/**
* Class Home
*
* Please note:
* Don't use the same name for class and method, as this might trigger an (unintended) __construct of the class.
* This is really weird behaviour, but documented here: http://php.net/manual/en/language.oop5.decon.php
*
*/
class Home extends Controller
{
/**
* PAGE: index
* This method handles what happens when you move to http://yourproject/home/index (which is the default page btw)
*/

 public function index()
 {
 // load views
 require APP . 'view/_templates/header.php';
 require APP . 'view/home/index.php';
 require APP . 'view/_templates/footer.php';
 }

 public function addDatabase()
 {
 // if we have POST data to create a new song entry
 if (isset($_POST["submit_add_database"])) {
 // do addSong() in model/model.php
 $this->model->addDatabase($_POST["name"], $_POST["collation"]);
 }

 // where to go after song has been added
 header('location: ' . URL . 'home/index');
 }
}

...

 public function addDatabase($name, $collation)
 {
 $sql = "CREATE DATABASE :name;";
 $query = $this->db->prepare($sql);
 $parameters = array(':name' => $name, ':collation' => $collation);

 // useful for debugging: you can see the SQL behind above construction by using:
 // echo '[ PDO DEBUG ]: ' . Helper::debugPDO($sql, $parameters); exit();

 $query->execute($parameters);
 }

 <form action="<?php echo URL; ?>home/adddatabase" method="POST">
 <div class="row">
 <div class="input-field col s6">
 <input id="first_name" name="name" type="text" class="validate">
 <label for="first_name">Database Name</label>
 </div>
 <div class="input-field col s6">
 <select class="browser-default" name="collation">
 <option value="0">Choose your option</option>
 <option value="1">Option 1</option>
 <option value="2">Option 2</option>
 <option value="3">Option 3</option>
 </select>
 </div>
 </div>

 <div class="right database-submit">
 <button class="btn waves-effect waves-light red lighten-3" type="submit" name="submit_add_database" value="Submit">
 Create Now<i class="mdi-content-send right"></i>
 </button>
 </div>
 </form>
...