Adsorption of Ni2+ and Cu2+ Ions from Wastewater by a Silanized Zeolite Produced with a 3-Mercaptopropyl Trimethoxysilane Modification
Adsorption characteristics of a silanized zeolite for Ni2+ and Cu2+ ions in water solutions were analyzed by SEM, FTIR and XRD techniques. For ion removal, an optimum ratio of 1 g/L silanized zeolite was obtained for adsorbing a Ni2+ and Cu2+
solution. Equilibrium states at 220 and 108 min were reached for the adsorption of Ni2+ and Cu2+, respectively. In a pH range of 2–6, the modified zeolite demonstrated an excellent resistance to acids by exhibiting a high adsorption capacity, which increased with
a larger pH.
Keywords: 3-Mercaptopropyl Trimethoxysilane Modification; Heavy Metals; Nanogeosciences; Wastewater; Zeolite
Document Type: Research Article
Affiliations: School of Resource and Environment, Henan Polytechnic University, Jiaozuo, 454003, China
Publication date: 01 January 2021
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