l-cysteine doped polypyrrole (PPy@L-Cyst): A super adsorbent for the rapid removal of Hg+2 and efficient catalytic activity of the spent adsorbent for reuse

Magnetic recyclable CoFe2O4@PPy prepared by in situ Fenton oxidization polymerization with advanced photo-Fenton performance

“…Due to the weight loss caused by the volatilization of adsorbed water is observed at around 100 C, the thermo-gravimetric analysis is started from 100 C. The temperature was raised from 100 C to 800 C for the pyrolysis of PPy. 43 As shown in Fig. 3b, PPy is almost completely oxidized at 650 C and the weight loss is near 100%, whereas the curve for CoFe 2 O 4 only shows a slight weight loss ($5%) at 600 C. The weight loss for the composites consecutively increases with the increase of the PPy content.…”

“…CoFe 2 O 4 was prepared according to the previous work, 43,68 and the details are shown in the ESI. † The CoFe 2 O 4 @PPy was synthesized via in situ Fenton oxidation polymerization of pyrrole.…”

A green l-cysteine modified cellulose nanocrystals biosorbent for adsorption of mercury ions from aqueous solutions

“…23 L-Cysteine doped polypyrrole (PPy@L-Cyst) have been reported to be rapid and efficient removal of Hg(II) ions from water. 24 Thus, the content of the thiol group and the amino group on the surface of the CNCs is increased by graing L-cysteine.…”

Removal of Mercury (II) by EDTA-Functionalized Magnetic CoFe2O4@SiO2 Nanomaterial with Core-Shell Structure

“…Moreover, it seriously jeopardizes the ecological environment, as well as human life and health [5]. Therefore, the World Health Organization (WHO) and the Environmental Protection Agency (EPA) have listed mercury as one of the most toxic elements of heavy-metal pollution [6]. The limits for mercury ions allowed in drinking water and surface water discharge standards are 2 and 10 µg/L, respectively.…”