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In this paper, we study the existence of nodal solutions for thenon-autonomous Schr\"{o}dinger--Poisson system: \begin{equation*} \left\{\begin{array}{ll} -\Delta u+u+\lambda K(x) \phi u=f(x) |u|^{p-2}u & \text{ in}\mathbb{R}^{3}, \\ -\Delta \phi =K(x)u^{2} & \text{ in }\mathbb{R}^{3},%\end{array}% \right. \end{equation*}% where $\lambda >0$ is a parameter and$2<p<4$. Under some proper assumptions on the nonnegative functions $K(x)$ and$f(x)$, but not requiring any symmetry property, when $\lambda$ is sufficientlysmall, we find a bounded nodal solution for the above problem by proposing anew approach, which changes sign exactly once in $\mathbb{R}^{3}$. Inparticular, the existence of a least energy nodal solution is concerned aswell.

Bound state nodal solutions for the non-autonomous Schr\"{o}dinger--Poisson system in $\mathbb{R}^{3}$