Abstract:ABSTRACT. Efficient copper removal from water was achieved by using surface modified silica spheres with 3-mercaptopropyltrimethoxysilane (MPTMS) using base catalyst. The surface modification of silica spheres was performed by hydrolysis and condensation reactions of the MPTMS. The characteristic infrared absorption peaks at 2929, 1454, and 1343 cm −1 represent the -CH2 stretching vibration, asymmetric deformation, and deformation, respectively. The absorption peaks at 2580 and 693 cm −1 corresponding the -SH … Show more
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