Chemical modification of sodium alginate with THIOSEMICARBAZIDE (cas 116989-62-9) for the removal of Pb(II) and Cd(II) from aqueous solutions

Add time:08/28/2019    Source:sciencedirect.com

A new material (AlgOx–TSC), based on alginate (Alg) chemically modified with THIOSEMICARBAZIDE (cas 116989-62-9) (TSC), has been synthesized and tested as an effective biomaterial to remove Pb(II) and Cd(II) ions in aqueous solutions. The synthesis was carried out by controlling the following steps, i/partial oxidation process of alginate in NaIO4 to obtain AlgOx, ii/reacting of AlgOx, at 40–45 °C, with TSC in NaBH4. AlgOx–TSC has been characterized by Field Emission Scanning Electron Microscopy (FESEM/EDS), Fourier Transform Infrared Spectroscopy (ATR-IR), solid state 13C NMR spectroscopy and Point of Zero Charge (pHPZC) measuremenmts. In order to enhance the sorption process, the effect of contact time, sorbent dosage, initial concentration and reusability of the novel sorbent were investigated becoming the AlgOx–TSC a promising material capable of removing high concentrations of heavy metal ions such as Pb(II) (up to 950 mg/g at pH 3) and Cd(II) (up to 300 mg/g at pH 7) in aqueous solutions.

We also recommend Trading Suppliers and Manufacturers of THIOSEMICARBAZIDE (cas 116989-62-9). Pls Click Website Link as below: cas 116989-62-9 suppliers

Prev:Vibrational and quantum chemical investigation of cyclization of THIOSEMICARBAZIDE (cas 116989-62-9) group in 1-benzoyl-4-phenyl-3-THIOSEMICARBAZIDE (cas 116989-62-9)
Next:Toward new camptothecins. Part 4: On the reactivity of nitro and amino precursors of aza analogs of 5-methoxycarbonyl camptothecin)