Uranium biosorption by Lemna sp. and Pistia stratiotes

Biosorption: A Review of the Latest Advances

“…Similarly, biomass from the macrophytes Pistia stratiotes and Lemna sp. presented a maximum uranium sorption capacity of 2.86 × 10 −2 and 6.81 × 10 −1 mmol/g, respectively, with an optimum contact time of 60 min [107].…”

Uranium removal from aqueous solution using macauba endocarp-derived biochar: Effect of physical activation

“…Their findings also indicated the Redlich-Peterson to be the best fitting isotherm for both biochars (R 2 = 0.96 for raw biochar, R 2 = 0.98 for modified biochar). Another example is the work of Vieira et al (2019), who studied the adsorption of U(VI) onto macrophytes. For Pistia stratiotes, the Redlich-Peterson equation provided the best fit for the experimental data (R 2 = 0.86, corrected Akaike information criterion = -175.2).…”

Adsorption of Chromium Using Apu Wood (Pistia stratiotes L) Root Bioadsorbent and Modification of Apu Wood Root

“…Peak 3688.68819 -3306.66065 cm -1 indicates the presence of an O-H stretching group which is a hydroxyl group with an adsorbance range of 3550-3200 cm -1 . At peaks of 3688.68819 cm -1 and 3617.97245 cm -1 were groups that were lost after treatment with Cr (VI) caused by the adsorption of heavy metals by hydroxyl groups [13]. At peaks of 1633.86789 cm -1 and 1613.54708 cm -1 , it shows the presence of a bending N-H functional group which is an amine group in the adsorbance range of 1650-1580 cm -1 .…”

“…Roots Analysis of the characteristics of the functional groups contained in the Apu wood roots using the analytical method shown in Fig 3 . In this case, information was obtained about the composition of the functional groups indicated by the presence of a peak at a certain wavenumber [13].…”