Spiderweb-Like Fe-Co Prussian Blue Analogue Nanofibers as Efficient Catalyst for Bisphenol-A Degradation by Activating Peroxymonosulfate

Abstract

Prussian blue and its analogues (PBA) based nanomaterials have been widely applied to removing pollutants in the recent years. However, easy aggregation and poor recycling largely limit their practical applications. In this work, spiderweb-like Fe-Co Prussian blue analogue/polyacrylonitrile (FCPBA/PAN) nanofibers were prepared by electrospinning and applied to degrading bisphenol-A (BPA) by activating peroxymonosulfate (PMS). Detailed characterization demonstrated that a high loading of FCPBA (86% of FCPBA in FCPBA/PAN) was successfully fixed on the PAN nanofibers. 67% of BPA was removed within 240 min when 500 mg·L−1 PMS and 233 mg·L−1 FCPBA/PAN were introduced in 20 mg·L−1 BPA solution at initial pH of 2.8. Electron paramagnetic resonance (EPR) and radical inhibition experiments were performed to identify the possible degradation mechanism. For comparison, a low loading of FCPBA nanofibers (0.6FCPBA/PAN nanofibers, 43% of FCPBA in FCPBA/PAN) were also prepared and tested the catalytic performance. The results showed that the activity of FCPBA/PAN was much higher than 0.6FCPBA/PAN. Furthermore, a FCPBA/PAN packed column was made as a reactor to demonstrate the reusability and stability of FCPBA/PAN nanofibers, which also exhibited the bright future for the industrial application. This work makes it possible to fabricate efficient PBA nanocatalysts with excellent recyclability and promotes the application of PBA in industrial areas.

Protective role of luteolin against bisphenol A‐induced renal toxicity through suppressing oxidative stress, inflammation, and upregulating Nrf2/ARE/ HO‐1 pathway

“…At the point when there is an absence of balance among free radical generation and its degeneration by protection systems of antioxidant, OS pursues because of expanded free radical species growth. Inordinate generation of reactive oxygen species (ROS) can alter the structures and elements of arranged particles basic to cell damage in tissues alongside the kidneys .…”

Environmentally Benign Formation of Nickel Hexacyanoferrate-Derived Mesoframes for Heterogeneous Catalysis

“…For the catalysis of bisphenol-A, a change from 4.06 to 3.98 was detected (Figure 6d, Table S7). It can be seen that for both samples a certain decrease or increase in These results indicate that the catalytic activity of the mesoframes is comparable or even higher than that of the most recently published catalysts or the commercial Co 3 O 4 catalyst (Table S5) [8,16,18,33,[57][58][59]. A major advantage over all these catalysts is that the mesoframes are produced at only 25 • C, whereas the other catalysts usually require high temperatures for production (i.e., temperatures between 80 • C and 650 • C were applied).…”

“…There are several approaches to implement NCs in hierarchical architectures. Often, they are immobilized on graphene or other carbon-derived materials such as sponges to form a nanocomposite [6,8,9,[31][32][33]. On the other hand, superstructures can be formed by the spatial arrangement of NCs, which also promote their easy separability due to their size (i.e., micron-sized superstructures) [31,34].…”

Catalytic activation of peroxymonosulfate with manganese cobaltite nanoparticles for the degradation of organic dyes

“…2f) showed O species in the metal-oxygen bonding (529.3 eV) and in surface defect sites (531 eV). 20 5 NPs might originate from several aspects, namely (i) their small particle size (as observed by TEM) and a high density of surface hydroxyl groups (as characterized by FTIR), and (ii) synergistic coupling of Mn-Co as previously observed and proposed for Mn-Fe, 21 Cu-Fe, 22 and Fe-Co. 23 3.2.2. Inuence of catalyst dosage, initial Oxone and MB concentrations, and temperature.…”