Algae extract delamination of molybdenum disulfide and surface modification with glycidyl methacrylate and polyaniline for the elimination of metal ions from wastewater

Algae extract delamination of molybdenum disulfide and surface modification with glycidyl methacrylate and polyaniline for the elimination of metal ions from wastewater

Authors:

Keywords

2D material
MoS
Algae extract
Polyaniline
Adsorption applications

Abstract

A special type of two-dimensional (2D) material based conducting polymer was constructed by green synthesis and in-situ polymerization techniques. The 2D Molybdenum Disulfide (MoS2) were first synthesized with the combination of, ammonium tetrathiomolybdate dissolved in 20?mL algae extract under stirring. After stirring for about 2?h, and then finally sulfurization was initiated using sulfur powder in 20?mL of sulfuric solution and stirred for 8?h. The resulting black precipitates of MoS2 were collected by centrifugation at 5000?rpm. Moreover, the prepared MoS2 was functionalized with glycidyl methacrylate (GMA) and form the [email protected]PGMA. Further, the [email protected] is combined with polyaniline (PANI) to form conducting polymer grafted thin film nanosheets named [email protected]/PANI with a thickness in micrometer size through grafting method. The prepared materials were characterized by SEM, FTIR, XRD, XPS and EDX techniques. To check the performance of materials the adsorption study was performed. Moreover, the adsorption study toward Cu2+ and Cd2+ showed a tremendous results and the maximum adsorption was 307.7?mg/g and 214.7?mg/g respectively. In addition, the pseudo-first and second order models as well as the adsorption isotherm were investigated using the Langmuir and Freundlich model. The results were best fitted with the pseudo-second order and Langmuir models. The regeneration study was also conducted and [email protected]/PANI nanosheets can be easily recycled and restored after five successful recycling. The established methodology for preparing the 2D materials and conducting polymer based [email protected]/PANI nanosheets is expected to be applicable for other multiple applications.

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