Application of graphene oxide nanoplatelets for adsorption of Ibuprofen from aqueous solutions: Evaluation of process kinetics and thermodynamics

Functionalized Graphene-Based Materials as Innovative Adsorbents of Organic Pollutants: A Concise Overview

“…The Freundlich isotherm model fitted better the adsorption of ibuprofen and other pharmaceutical pollutants onto ED-GO (Table 2). These results are in disagreement with other ibuprofen data reported in the literature (Banerjee et al, 2016), though they can be explained by the elevated BET surface area (771 m 2 •g -1 ) of ED-GO in comparison to the other adsorbents, evidencing a greater availability of heterogeneous sites on ED-GO surface (Ruthven, 1984). Furthermore, the Freundlich constants (K F ) obtained for ibuprofen, carbamazepine and atenolol were 291, 129 and 100, respectively.…”

“…In this sense, Khan et al (2017) evaluated different adsorbent-adsorbate interaction behaviors involving pharmaceuticals. Pharmacological compounds, such as levofloxacin (Sun et al 2018;Dong et al, 2015), ciprofloxacin (Rostamian and Behnejad, 2018;Wang et al, 2016b;Fei et al, 2016;Ma et al, 2015), dorzolamide (Kyzas et al, 2014), tetracycline (Zhu et al, 2018;Lin et al, 2013;, ibuprofen (Banerjee et al, 2016), paracetamol (Shan et al, 2017), aspirin (Akpotu and Moodley, 2018;Al-Khateeb et al, 2014), amoxicillin (Kerkez-Kuyumcu et al 2016), among others, have had their adsorption onto graphene-based nanomaterials evaluated in several studies reported in the literature, as shown in Table 2. Different interaction natures between pharmaceuticals and GO are shown in Figure 6 and Figure 7a-d. π−π interactions, hydrogen bonding and hydrophobic interactions are present in the mechanisms of several compounds.…”

Microwave-assisted spent black tea leaves as cost-effective and powerful green adsorbent for the efficient removal of Eriochrome black T from aqueous solutions

“…(25) was found to be 32.70 kJ/mol, which is lower than the energy of chemisorption (40 kJ/mol). These results indicated that Van der Waals forces were also involved in the adsorption process [51].…”

Towards industrialization of graphene oxide

“…With large surface areas and tunable structure/functional groups, GO-based materials have been used for water treatment, through filtering, adsorption, and/or photodegradation [67]. A removal rate of over 95% for organic molecules such as safranin dye [68], methylene blue [69], ibuprofen drug [70], as well as an adsorption capacity of 10-400 mg g −1 for heavy metal ions has been achieved [71]. Furthermore, GO has been combined with variety of metal oxides including TiO 2 , ZnO, Cu 2 O, ZnFe 2 O 4 , CuFe 2 O 4 and Bi 2 WO 6 for the degradation of synthetic dyes as excellent photocatalysts [71].…”