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RHE, 4 and 10 times higher than that of the BiVO 4 and WO 3 counterparts, respectively. Electron paramagnetic resonance (EPR) and photo-current analyses were used to study the photocatalytic mechanism, which show that PPI has a lot of single electron trapped oxygen and more light-generated electrons. As a proof of concept, the as-fabricated WO 3 /porous-BiVO 4 /FeOOH photoanode yielded a photocurrent density of 4.4 mA cm 2 at 1.23 V vs. 5th Semester Private DEC-2018: Examination Result : BBA 1st Year Supplementary Regular March - 2018. The photocatalytic performance for the degradation of methylene blue (MB) in water was studied, and the results demonstrate that PPI possesses excellent photocatalytic activity under visible light irradiation. NHE), clearly indicating the visible light activity of PPI. NHE) and the conduction band (CB) edge at −0.78 V ( vs. UV-vis diffused reflection spectroscopy (DRS), electrochemical analysis, valence band X-ray photoelectron spectroscopy (XPS), and density functional theory (DFT) calculation results reveal that the prepared PPI possesses a narrow band gap (2.04 eV) with the valence band (VB) located at 1.26 V ( vs. B.Tech I Year (R09) (Last Chance) Supplementary Examinations, June/July 2019. Pre Ph.D Regular & Supplementary Examinations, September 2018 Re-valuation Results (Pending Results).
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Aiming to develop a visible-light-driven polymeric photocatalyst that can be fabricated by an easy-to-scale-up polymerization method, a porous polyimide (PPI) with a specific surface area ( S BET) of 79.3 m 2 g −1 was synthesized by a facile polycondensation of 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA) with 4,4′,4′′-triaminotriphenylamine (TPA). M.Pharmacy II semester (R17) Regular & Supplementary Examinations, July/August 2019.