
Treatment of Cr(VI) in aqueous solution by Ni–Al and Co–Al layered double hydroxides: Equilibrium and kinetic studies
Keywords: LDH, layered double hydroxide; M3+, trivalent metal cations; M2+, divalent metal cations; An−, interlayer anions; XRD, X-ray diffraction; ICP-AES, inductively coupled plasma atomic emission spectrometry; qe, equilibrium adsorption; Ce, equilibrium concent