Higher uptakes of Cr3+, Cu2+, Zn2+ and Ni2+ ions obtained at pH 6 for 2-HIYPMI may be due to the electrostatic attractions between the charged cations and negatively charged modifying adsorbent’s surface
Higher uptakes of Cr3+, Cu2+, Zn2+ and Ni2+ ions obtained at pH 6for 2-HIYPMI may be due to the electrostatic attractions betweenthe charged cations and negatively charged modifying adsorbent’s surface