Application of poly 3‐methylthiophene for removal of silver ion from aqueous solutions

Abstract

This article deals with application of poly (3-methyl thiophene) synthesized chemically on the surface of wood sawdust (termed as P3MTh/SD) and then was used for removal of silver ions (Ag þ ) from aqueous solution. The polymer was synthesized directly on the surface of sawdust, which has previously soaked in monomer solution using ferric chloride as chemical oxidant. The sorption experiments were performed on both batch and column systems under simple open circuit conditions. The effects of some important parameters such as pH, initial concentration, sorbent dosage, and exposure time on uptake of silver ion were investigated. The treatment of the data was also carried out using both Freundlich and Langmuir adsorption isotherms. To find out the possibility of the regeneration and reuse of the exhausted adsorbent, desorption studies were also performed. It was found that sawdust modified with polythiophene is an efficient system for uptake or recovery of the silver ions from aqueous solutions.

Synthesis of a novel dithiooxamide–formaldehyde resin and its application to the adsorption and separation of silver ions

“…Some examples of these functional groups in chelating resins studied for the adsorption, separation or concentration of silver ions are thiourea [6,7,[18][19][20], dithiocarbamate [1,[20][21][22][23], bisthiourea [24], thiol and amine [1,3,4], thiosemicarbazide [25], polythiazaalkane [26], 2-mercaptobenzothiazole [27], thiophene [28] and amberlite XAD-16 resin [29].…”

Removal of basic dye methylene blue from aqueous solutions using sawdust and sawdust coated with polypyrrole

“…separation and sensors) are mostly based on their electrical conductivity and electroactivity which have been used under applied potential or current in an electrochemical cell. Moreover, we have previously reported that these polymeric materials can be used for electroless removal of some heavy metal ions from aqueous solutions with high performance [25][26][27]. This paper deals with the investigation of another possible application of polypyrrole for the removal of dyes from aqueous solutions.…”

Pre-concentration and in situ electrochemical sensing of 1-hydroxypyrene on an electrodeposited poly(3-methylthiophene) film modified electrode

“…All these properties confirm that polythiophene is an excellent candidate for pre -concentration and electrochemical sensing of 1-OHP. Poly(3-methylthiophene) (P3MT) is a widely used electronically polythiophene derivative, which can be easily electrodeposited onto electrode by electrooxidation of its monomer at lower potential compared to polythiophene and other derivatives [32,33]. Numerous studied have shown that P3MT modified electrodes can minimize the surface fouling and effectively electrocatalyze oxidation of some conjugated compounds, such as dopamine [34,35], 8-hydroxy-2 0 -deoxyguanosine [36,37] and phenolic compounds [38,39].…”