modification suffers from gauge dependence which cannot be cured and thus yields unphysical effects. In the effective LQC based on the holonomy modification, the Friedmann equation adds a $-\frac{\kappa}{3}\frac{\rho^2}{\rho_c}$ term, in which $\kappa=8\pi G$, to the right-hand side of the standard Friedmann equation [@Ashtekar-improve]. Since this correction comes with a negative sign, the Hubble parameter $H$, and then $\dot{a}$ will vanish when $\rho=\rho_c$, and the quantum bounce occurs. Moreover, for a universe with a large scalar factor, the inverse volume modification to the Friedmann equation can be neglected and only the holonomy modification is important.

Based on the holonomy modification, the dynamical behavior of dark energy has recently been investigated by many authors [@Samart-Phantom; @Samart-dy; @Xiao-dynamical]. The attractor behavior of the scalar field in LQC has also been studied [@Copeland-superinflation; @Lidsey-attractor]. It was found that the dynamical properties of dark-energy models in LQC are significantly different from those in classical cosmology. In this paper, we examine the background dynamics of LQC dominated by a scalar field with a general positive potential coupled with a barotropic fluid. By considering $\Gamma$ as a function of $\lambda$, we investigate scalar fields with different potentials. Since the Friedmann equation has been modified by the 