Fabrication of polypyrrole/β-MnO 2 modified graphite felt anode for enhancing recalcitrant phenol degradation in a bioelectrochemical system

Electrochemical Behaviors of MnO2 on Lead Alloy Anode during Pulse Electrodeposition for Efficient Manganese Electrowinning

“…This was in good agreement with the energy splitting of the standard spectrum of MnO 2 . 49,50 As shown in Figure 8c, the main peaks at 641.57 and 640.40 eV of Mn 2p 3/2 wer ascribed to Mn(III) and peaks at 643.4, 645.0, and 646.0 eV were attributed to Mn(IV), 51,52 The results indicated that the oxidation state of Mn in deposited MnO 2 was mainly Mn(III) but with some Mn(IV) after DC polarization. On the contrary, the corresponding XPS spectrum of Mn 2p 3/2 in deposited MnO 2 after PC-500 Hz polarization is illustrated in Figure 8f.…”

Improved anaerobic degradation of purified terephthalic acid wastewater by adding nanoparticles or co-substrates to facilitate the electron transfer process

“…The intermediates during the TA biodegradation were identified using a gas chromatograph-mass spectrometer (GC-MS) (Agilent5977B, Agilent, USA) according to the reported reference. 28 Prior to GC-MS analysis, the samples were concentrated by solid phase extraction (ESI †). All the sludge samples in this study for analysis and testing were sampled at end of the reaction.…”

3D flower-like molybdenum disulfide modified graphite felt as a positive material for vanadium redox flow batteries

“…The GF present two different peaks at 1350 cm À1 and 1592 cm À1 , corresponding to the D-band and the G-band of the GF, respectively. 38,39 For the MoS 2 /GF-36 electrode, the in-plane E 1 2g and the out-of-plane A 1g of MoS 2 with typical hexagonal layered structures appear, whose characteristic peaks are at 376 cm À1 and 403 cm À1 , respectively. 40 This is consistent with the results of the XRD and SEM, and further conrms that the 3D ower-like MoS 2 has successfully grown on the surface of the GF.…”