Study on the influence of thiolation on the adsorption and magnetic recovery of superparamagnetic nanoadsorbents for Cd 2+ removal
Source abstract
Abstract
Abstract In the study, the influence resulting from thiol-functionalization on Fe 3 O 4 -based superparamagnetic nanoadsorbents was investigated in detail, involving various physicochemical properties, especially, the contradiction between adsorption performance and magnetic recovery. The experimental results demonstrated clearly that the aqueous dispersibility and stability of the Fe 3 O 4 -SH nanoparticles were positively related with the thiolation while the magnetic response and recovery efficiency in aqueous solution had negative correlations with the amount of SH-groups on the surface. In addition, the adsorption performances for Cd 2+ using the Fe 3 O 4 -SH nanoparticles with different thiolation degrees were also studied comprehensively, which were all sensitive to pH and ionic strength and varied with a similar trend. Meanwhile, the adsorption kinetics and isotherms manifested that the initial adsorption rates and adsorption capacities could also be positively correlated with higher thiolation degree on the nanoadsorbent surface.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Adsorption and biosorption for pollutant removal · Nanomaterials for catalytic reactions · Environmental remediation with nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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