Adsorption of Polycyclic Aromatic Hydrocarbons (Fluoranthene and Anthracenemethanol) by Functional Graphene Oxide and Removal by pH and Temperature-Sensitive Coagulation

Abstract

A new kind of functional graphene oxide with fine stability in water was fabricated by mixing graphene oxide (GO) and brilliant blue (BB) with a certain weight ratio. The adsorption performance of this mixture of BB and GO (BBGO) to polycyclic aromatic hydrocarbons (anthracenemethanol (AC) and fluoranthene (FL)) was investigated, and the results indicated BBGO possessed adsorption capacity of 1.676 mmol/g and removal efficiency of 72.7% as to AC and adsorption capacity of 2.212 mmol/g and removal efficiency of 93.2% as to FL. After adsorption, pH and temperature-sensitive coagulation (PTC) method was used to remove the AC/BBGO or FL/BBGO complex and proved to be an effective approach to flocculate the AC/BBGO or FL/BBGO complex into large flocs, which tended to be removed from the aqueous solution.

Removal of 17β-estradiol by few-layered graphene oxide nanosheets from aqueous solutions: External influence and adsorption mechanism

“…Raman spectra is a powerful tool to investigate the structural change of carbon materials [38]. As shown in the Raman spectra (Fig.…”

Organic Additives to Improve Catalyst Performance for High‐Temperature Polymer Electrolyte Membrane Fuel Cells

“…To modify and therefore functionalize the carbon electrode polycyclic aromatic hydrocarbons (PAHs), like the binaphthyl additive of Song et al., are preferable additives in HT‐PEMFC, because of their high chemical, thermal (decomposition at 600 °C) and mechanical stability. [36] Furthermore, PAHs interact with the catalyst support via π‐π interaction . Inspired by the work of the Song group, we have developed two new additives that were also supposed to prevent the undesired binding of PA anions to the Pt surface, while the ORR should be unaffected and unhindered.…”

“…[36] Furthermore, PAHs interact with the catalyst support via π-π interaction. [37][38][39][40] Inspired by the work of the Song group, [32] we have developed two new additives that were also supposed to prevent the undesired binding of PA anions to the Pt surface, while the ORR should be unaffected and unhindered. In this work, we present a PAH with a large π-network and variable substitutable positions to interact with the components of the PEMFC (i. e. Pt nanoparticle catalyst, carbon support, PA electrolyte) and therefore stabilize and improve the HT-PEMFC performance.…”

Applications of inorganic–organic mesoporous materials constructed by self-assembly processes for removal of benzo[k]fluoranthene and benzo[b]fluoranthene

“…Polycyclic aromatic hydrocarbons (PAHs) enter aquatic environments via industrial discharge, petroleum spills, the combustion of fossil fuels, automobile exhaust, and nonpoint sources such as urban runoff and atmospheric deposition [1][2][3][4]. They consist of fused aromatic rings without any heteroatoms or substitutions and comprise a group of over 100 different chemicals [5][6][7].…”