Rapid removal of Pb²⁺ from aqueous solution by phosphate-modified baker's yeast

Abstract

Phosphate-modified baker's yeast (PMBY) was used as a novel bio-sorbent for the adsorption of Pb2+ from aqueous solution.

Synergistic Surface Passivation of CH3NH3PbBr3 Perovskite Quantum Dots with Phosphonic Acid and (3‐Aminopropyl)triethoxysilane

“…The O 1 s spectrum (Figure a) for PQD MPA could be fitted with three peaks: N−O at 532.9 eV, P=O at 531.3 eV, and P−O−Pb at 530.8 eV . The N 1 s spectrum (Figure b) for PQD MPA could be fitted with three peaks: −NH 3 + at 401.5 eV, C−N at 401.2 eV, −NH 2 at 399.7 eV,– and N−O at 399.0 eV . Figure c shows the Pb 4 f spectrum of the samples of PQD MPA , PQD HPA , PQD TDPA , and PQD ODPA .…”

“…Figure c shows the Pb 4 f spectrum of the samples of PQD MPA , PQD HPA , PQD TDPA , and PQD ODPA . It can be observed that the binding energies of Pb 4 f 5/2 /4 f 7/2 are 142.8/137.9 eV for PQD MPA , whereas they become 143.0/138.1, 143.1/138.3, and 143.3/138.4 eV for PQD HPA , PQD TDPA , and PQD ODPA , respectively . Clearly, there is an apparent positive shift (ca.…”

“…XPS spectra revealed the presence of PA and APTES ligands in PQDs and their interaction. Specifically, the XPS spectra show the presence of the N−O peak at 532.9 eV and P−O−Pb peak at 530.80 eV in O 1 s, with the −NH 3 + peak at 401.50 eV, the −NH 2 peak at 399.7 eV,– and the N−O peak at 399.0 eV in N 1 s; thus indicating the presence of N and O charged species and the interaction of PQD with PA and APTES ligands. Moreover, with increasing length of the linear alkyl PA, the Pb 4 f 5/2 /4 f 7/2 peaks show an increase in electron density for Pb 2+ and a shift in binding energy to higher value.…”

Removal of lead ions (Pb2+) from water and wastewater: a review on the low-cost adsorbents

“…The used yeast Saccharomyces cerevisiae is a waste of the alcoholic fermentation process. An inexpensive, readily available, and safe industrial microorganism, Baker’s yeast has been investigated to remove lead from aqueous solution (Liu et al 2018 ; Zhang et al 2016 ). Nano-ZnO/yeast composites had an adsorption capacity of 66.48 mg/g (Zhang et al 2016 ).…”

La eliminación de metales tóxicos presentes en efluentes líquidos mediante resinas de cambio iónico. Parte IX: Plomo(II))/H+/Amberlite IR-120

“…Thus, the removal of lead from liquid effluents has an interest of the uttermost importance, and this task had been recently investigated using primarily, ion exchange or adsorption of the metal by various materials (Alexander et al, 2018;Chanthapon et al, 2018;Chen et al, 2018;Chu et al, 2018;Cunha et al, 2018;El-Bahy, 2018;Elsherbiny, et al, 2018;Fang et al,. 2018;Feng et al, 2018;Georgescu et al, 2018;Gupta et al, 2018;Hayeeye et al, 2018;He et al, 2018;Huang and Wang, 2018;Kragović et al, 2018;Kinnarinen et al, 2018;Kulkarni et al, 2018;Li et al, 2018;Liu et al, 2018a;Liu et al, 2018b;Magrì et al, 2018;Quyen et al, 2018;Rajamohan et al, 2018;Rehman, et al, 2018;Rwiza et al, 2018;Sahmoune, 2018;Song et al, 2018;Tran et al, 2018;Wang et al, 2018a;Wang et al, 2018b;Yang et al, 2018;Ivanenko et al, 2018;Zhou et al, 2018;Zhu et al, 2018) liquid membranes (Ershad et al, 2018;Mesli and Belkhouche, 2018), and electrochemically (Oke et al, 2017).…”