The photocatalytic activity of the TiO2 nanotube arrays was evaluated in the photocatalytic (PC) and photoelectrocatalytic (PEC) degradation of methylene blue (MB) dye in different supporting
Photoelectrocatalytic activity of In(iii)-modified TiO2 photoanodes in the visible spectrum region Comparison of the Photocatalytic and catalytic and photoelectrocatalytic reactions, the rate of reactant disappearance was measured. Methyl or-ange (MO), a typical azo dye, was chosen as our model compound since MO is a serious pollutant in textile wastewater . The rate of decolorizationof MO was monitored and used to evaluate the activity
ZTO/MoS2/Ag/AgCl electrode exhibited significant photoelectrocatalytic activity by degrading Methylene Blue (MB) and phenol of 96.5% and 68% respectively under simulated solar light within 2 h Constructing 1D hierarchical heterostructures of MoS 2 /In The maximally exposed In-doping MoS 2 edges, together with the junctions formed among CdS, MoS 2 and In 2 S 3 , is supposed to be mainly responsible for the enhanced photoelectrocatalytic activity of [email protected] 2 /In 2 S 3 . 1D [email protected] 2 /In 2 S 3 nanoarrays with integration of electro- and photocatalytic activity provides a new avenue toward the
Yuting Xiao, Guohui Tian, Yajie Chen, Xin Zhang, Huiying Fu, Honggang Fu, Exceptional visible-light photoelectrocatalytic activity of In 2 O 3 /In 2 S 3 /CdS ternary stereoscopic porous heterostructure film for the degradation of persistent 4-fluoro-3-methylphenol, Applied Catalysis B:Environmental, 10.1016/j.apcatb.2017.12.015, 225, (477-486 Effect of mixed Mo/W polyoxometalate modification on Jun 01, 2020 · As proposed in Fig. 12, the enhanced PEC As(III) oxidation activities may be due to the following mechanism:(1) the formation of photogenerated electron-hole pairs in CdS; (2) the transfer of electrons from the conduction band of CdS to POMs; (3) the transfer of electrons from POMs via the FTO substrate to the external circuit; (4) oxidation of As(III) to As(V) by the holes
The CdS/PMo 3 W 9 composite nanocrystals exhibit the highest efficiency for the photoelectrocatalytic oxidation of As(III). Abstract Modification of semiconductor materials by polyoxometalates (POMs) is a promising strategy for increasing their photoelectrocatalytic (PEC) activity. Effect of the Structure of Anodic TiO2 Nanotube Arrays photoelectrocatalytic activity than that with random orientation, which only takes 24 min to reach 98% degradation percentage, in comparison with that of 36 min for random orientated TNTs. Consequently, the photoelectrocatalytic activity of TNTs is highly related with the structure of TNTs.
Photoelectrocatalytic oxidation techniques were first applied in As(III) oxidation under UV irradiation by Fei et al., and the application of an external positive bias voltage on the catalyst could draw the photo-generated electrons away via the external circuit, leaving the holes for oxidation of As(III). Efficiently Visible-Light Driven Photoelectrocatalytic So, Pt/TiO2 nanotubes can be tested under visible light to oxidate As(III). Photocatalytic Activity Tests Photocatalytic activities for As(III) oxidation were conducted in a 50-ml quartz beaker. The initial As(III) concentration was fixed at 3.4 mg/L, and the pH was adjusted with H2SO4 or
The Influence of Applied Bias Potentials on the Photoelectrocatalytic Oxidation of As(III) The bias potential is an important parameter in the process of photoelectrocatalytic activity. Photo-generated electrons on Pt/TiO2 nanotubes electrode could be driven to the counter electrode with positive potential. Efficiently Visible-Light Driven Photoelectrocatalytic duced and the photo-oxidation ability for As(III) can be raised in the photoelectrocatalytic process . Later, dye-sensitized photoelectrocatalytic oxidation over nanostructured TiO 2 film electrodes were ap-plied in As(III) transformation under visible light by Li et al. and showed a high photocatalytic activity for As(III) oxidation [23
The photoelectrocatalytic activity of the prepared films was also tested by using methanol as a model organic compound (CH 3OH, purity >99.5 %, Lachema, Czech Republic). 3. RESULTS AND DISCUSSION 3.1. Voltammetric behavior of stainless steel in zinc(II) acetate electrolyte The voltammetric behavior of AISI 304 type stainless steel electrode in 0.05 Fabrication and high photoelectrocatalytic activity of Oct 15, 2020 · High photoelectrocatalytic activity and stability under visible-light. Abstract Bismuth oxybromide (BiOBr) nanosheet arrays (NSAs) were successfully prepared on the surface of indium tin oxide glass (hydrophilic pretreated) by solvothermal method using [C 16 mim]Br ionic liquid as bromine source and template.
Aug 01, 2019 · The improved photoelectrocatalytic activity of Ni [email protected]@ZnFe-LDH is mainly ascribed to the broadened light absorption region, to enhanced visible light absorption caused by the 2D/2D core-shell heterojunction and to promoted photogenerated electron-hole pairs separation efficiency owning to the action of applied voltage. Hemin Modified TiO2 Nanoparticles with Enhanced Jul 29, 2016 · This confirms the high photoelectrocatalytic activity of hemin-TiO 2. In contrast, the pure TiO 2 film only displayed a low photoelectrocatalytic activity under visible light illumination (curve b in Fig. 9A), on which the photocurrent value was only ca. 1/3 of that on the hemin-TiO 2 modified electrode.
The photoelectrocatalytic activity of these anodes in the reactions of methanol and formic acid electrooxidation studied under illumination with monochromatic light (369 and 461 nm; 7.5 and 10 mW Investigation on the Photoelectrocatalytic Activity of Photoelectrocatalytic Activity Tests. (curve II) and NaCl (curve III) are compared to each other in Figure 3. According to the literature , by illuminating the semiconductor with light energy greater than that of the band gap, electron-hole pairs are generated at the electrode surface.
Photoelectrocatalytic Activity Tests. (curve II) and NaCl (curve III) are compared to each other in Figure 3. According to the literature , by illuminating the semiconductor with light energy greater than that of the band gap, electron-hole pairs are generated at the electrode surface. Photoelectrocatalysis Scientific.NetThe effects of some experimental parameters on photocatalytic (PC) activity and photoelectrocatalytic (PEC) activity were investigated in detail. It was found that the optimum preparng conditions were as followed:the applied voltage, water content, fluoride concentration, anodization time and reaction temperature was 20 V, 40 vol%, 0.5 wt%, 2
Enhanced photoelectrocatalytic activity of reduced graphene oxide/TiO2 composite films for dye degradation. Chemical Engineering Journal 2012, 198-199, 547-554. DOI:10.1016/j.cej.2012.04.062. Chengsi Pan, Jing Xu, Yajun Wang, Di Li, Yongfa Zhu. Dramatic Activity of C3N4/BiPO4 Photocatalyst with Core/Shell Structure Formed by Self-Assembly. Photoelectrocatalytic Materials for Solar Water Splitting Photoelectrocatalytic water splitting offers a promising approach to convert sunlight into sustainable hydrogen energy. A thorough understanding of the relationships between the properties and functions of photoelectrocatalytic materials plays a crucial role in the design and fabrication of efficient photoelectrochemical systems for water splitting.
Eu/ZnO/pPy/Au electrode was utilized for the photoelectrocatalytic degradation of SM as it exhibit excellent electrocatalytic activity and degradation products were analyzed by GC-MS. In the reductive elimination of SM, the following parameters were deduced (i) heterogeneous rate constant (0.127 s -1 ), (ii) transfer coefficient (0.32) and (iii Photoelectrocatalytic oxidation of phenol for water The removal of organics by photoelectrocatalytic oxidation offers a viable option to remove the contaminants at low concentrations. In this paper, we propose a BiVO 4 thin films synthesized via spray pyrolysis for photoelectrocatalyic oxidation of phenol with solar light. We compare the properties of BiVO 4 with those of the commonly used photocatalyst TiO 2.
The removal of organics by photoelectrocatalytic oxidation offers a viable option to remove the contaminants at low concentrations. In this paper, we propose a BiVO 4 thin films synthesized via spray pyrolysis for photoelectrocatalyic oxidation of phenol with solar light. We compare the properties of BiVO 4 with those of the commonly used photocatalyst TiO 2. Photoelectrocatalytic production of solar fuels with Photoelectrocatalytic production of solar fuels with semiconductor oxides:materials, activity and modeling Damián Monllor-Satoca , a María Isabel Díez-García , a
Nov 01, 2020 · The photoelectrocatalytic activities for BPA degradation over the BiVO 4-MnFe 2 O 4 /CFP system with or without PMS were evaluated in a three-electrode system by using BiVO 4 as photoanode and MnFe 2 O 4 /CFP as cathode. For comparison, the photoelectrocatalytic activities of BiVO 4-CFP system were also studied. Recent electrochemical methods in electrochemical Feb 23, 2019 · Park HS, Kweon KE, Ye H, Paek E, Hwang GS, Bard AJ (2011) Factors in the metal doping of BiVO 4 for improved photoelectrocatalytic activity as studied by scanning electrochemical microscopy and first-principles density-functional calculation. J Phys Chem C 115:1787017879.
The photoelectrocatalytic (PEC) activity toward degradation of methyl orange (MO) aqueous solutions under visible-light irradiation ( > 420 nm) by pn junction BiOI/TiO 2 NTs was investigated. Synthesis and photoelectrocatalytic activity of In2O3 Synthesis and photoelectrocatalytic activity of In 2 O 3 hollow microspheres via a bio-template route using yeast templates D. Pan, S. Ge, X. Zhang, X. Mai, S. Li and Z. Guo, Dalton Trans., 2018, 47, 708 DOI:10.1039/C7DT03878J If you are not the
Synthesis and photoelectrocatalytic activity of In 2 O 3 hollow microspheres via a bio-template route using yeast templates D. Pan, S. Ge, X. Zhang, X. Mai, S. Li and Z. Guo, Dalton Trans., 2018, 47, 708 DOI:10.1039/C7DT03878J If you are not the Ultra-fast detoxification of Sb(III) using a flow-through May 01, 2020 · Based on above discussion, we put forward a plausible mechanism for the ultra-fast photoelectrocatalytic Sb(III) detoxification using TNAM filters (as displayed in Fig. 6). Under illumination, photogenerated electrons are excited from the valence band to the conduction band of TNAM filter electrode, generating electronhole pairs.
Photoelectrocatalytic activity of In ( iii )-modified TiO 2 photoanodes in the visible spectrum region . c Institut Chevreul, FR2638 CNRS, Bât.