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This manuscript reported sol–gel derived organic–inorganic hybrid sorbent for the removal of Cd2+, Pb2+ and Cu2+ ions from aqueous solutions. The hybrid sorbent (S2/SiO2) had been synthesized by a simple co-condensation of bis[3-(triethoxysilyl)propyl]disulfide and tetraethoxysilane via sol–gel transformation. The S2/SiO2 was characterized by scanning electron microscopy, Fourier-transform infrared...
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