More generally, given any two states, you can always find some channel sending one into the other. Consider for example replacement maps, which have the form
$$\Phi_Y(X) = \operatorname{Tr}(X) Y.$$
Given any pair of states $\rho$ and $\sigma$, the channel $\Phi_\sigma$ will send $\rho$ (as well as any other state) into $\sigma$.
The (or a) set of Kraus operators for $\Phi_Y$ is $\{\sqrt{y_\alpha}\lvert y_\alpha\rangle\!\langle \beta|\}_{\alpha,\beta}$, where $|y_\alpha\rangle$ form an orthonormal basis of eigenvectors for $Y$ (assuming $Y$ to be normal), $y_\alpha$ are the corresponding eigenvalues, and $|\beta\rangle$ is an arbitrary orthonormal basis (for the relevant space).
See also @Norbert's answer on physics.SE for other examples of quantum channels on which to test hypotheses.