An effective magnetic nanoadsorbent based on a carbonaceous/spinel ferrite nanocomposite for the removal of pharmaceutical pollutants from wastewater

Abstract

Activated carbon modified with metal ferrite CoFe2O4 nanoparticles (AC-CoFe2O4) was prepared as a magnetic nano-adsorbent for removing promazine (PZ) from wastewater. The prepared AC-CoFe2O4 nanocomposite was characterized by scanning electron...

Continuous synthesis of BaFe2O4 and BaFe12O19 nanoparticles in a droplet microreactor for efficient detection of antihistamine drugs in oral fluid using surface-assisted laser desorption/ionization mass spectrometry

“…Specifically, the 712.4 and 725.5 eV peaks were related to Fe 2+ , while the 714.6 and 727.5 eV peaks were related to Fe 3+ on the surface of the barium ferrites NPs. 28,45 Furthermore, the presence of small satellite peaks at 719.3 and 731.8 eV could be attributed to Fe 3+ in the ferrite, indicating slight oxidation of the NPs by air in the environment. The O 1s spectrum was deconvoluted into three peaks located at 529.5, 530.5, and 531.5 eV, as shown in Fig.…”

Competitive adsorptive removal of promazine and promethazine from wastewater using olive tree pruning biochar: operational parameters, kinetics, and equilibrium investigations

“…Promazine (PRO) and promethazine (PMT) are two of the most frequently used phenothiazines. PRO is a psychotropic drug for treating psychiatric and cancer-related conditions, while PMT is an antihistamine with antiemetic properties (Al-Hetlani et al 2022a ; Wilde et al 2017 ). The chemical structure and physicochemical properties of PRO and PMT are presented in Table 1 (Domańska et al 2011 ; Wilde et al 2017 ).…”

“…To the best of our knowledge, this is the first investigation into using biochar of OTPR (BC-OTPR) produced at varying pyrolysis temperatures (600–700 °C) to remove two drugs: PRO and PMT. Almost all studies focused on the removal of each drug through the adsorptive treatment of its individual solution (Al-Hetlani et al 2022a ; Barasarathi et al 2022 ; D'Cruz et al 2020b , Seki and Yurdakoç 2009 ). Therefore, the current approach is novel and possibly the first report on the competitive adsorptive decontamination of PRO and PMT from their binary mixture.…”