Development of magnetic dispersive microsolid-phase extraction using lanthanum phosphate nanoparticles doped on magnetic graphene oxide as a highly selective adsorbent for pesticide residues analysis in water and fruit samples

An efficient 3D adsorbent foam based on graphene oxide/AgO nanoparticles for rapid vortex-assisted floating solid phase extraction of bisphenol A in canned food products

“…Graphene oxide was prepared from purified natural graphite based on Hummers' method. 16 In brief, graphene oxide (0.2 g) and silver nitrate (AgNO 3 ) (0.3 g) were dispersed in 50 mL distilled water and ultrasonicated for 30 min. After that, 2.8 mL of ammonia (30%) was added drop-wise into the mixture under vigorous stirring for 1 h to produce [Ag(NH 3 ) 2 ] + .…”

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

“…Besides the redox activity and surface charge properties (Abdel Maksoud et al 2020 ), low-cost synthesis and non-toxicity (Leone et al 2018 ), high selectivity (Song et al 2018 ; Asadi et al 2020 ; Nisola et al 2020 ; Wang et al 2020c , 2021 ; He et al 2021 ; Luan et al 2021 ), binding specificity (Vishnu and Dhandapani 2021 ), and excellent reusability (D’Cruz et al 2020 ; Hu et al 2020 ; Li et al 2020 ; Ahmad et al 2020b ; Vu and Wu 2020 ; Wang et al 2020c ; Nkinahamira et al 2020 ; Tabatabaiee Bafrooee et al 2021 ), a key feature of magnetic nanoadsorbents is that they can be separated in situ from adsorption-remediated waters in the form of a magnetic nanoadsorbent(s)–adsorbate(s) sludge by applying a strong enough magnetic field (Ambashta and Sillanpää 2010 ; Zaidi et al 2014 ; Simeonidis et al 2015 ; Moharramzadeh and Baghdadi 2016 ; Wanna et al 2016 ; Tripathy et al 2017 ; Mirshahghassemi et al 2017 ; Yeap et al 2017 ; Augusto et al 2019 ; Kheshti et al 2019a ; Mashile et al 2020 ; Brião et al 2020 ; Balbino et al 2020 ).…”