Anion-Exchange Membrane–Photoelectrochemical Water Splitting Using Porous Hematite Photoanodes

Apriandanu, Dewangga Oky Bagus; Surya, Rizki Marcony; Beppu, Kosuke; Amano, Fumiaki

doi:10.1021/acsaem.3c02104

Cited by 16 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The investigators reported that the average particle size was approximately 11 nm and crystalline in nature (Da'na et al, 2018). Apriandanua et al also showed similar experimental results for pure and composite forms of ferrous in several investigations (Apriandanu et al, 2023b;2023c). (Pallela et al, 2019).…”

Section: Phase Identification Of Ionps By Xrdmentioning

confidence: 69%

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Patel,

Desai,

Patel

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Phytonanofabrication is one of the most promising areas that has drawn the attention of scientists worldwide due to its eco-friendly nature and biocompatibility. In the current investigation, we reported the phyto-assisted formation of iron oxide nanoparticles (IONPs) from a rare species of Acacia (Acacia jacquemontii). First, ethanolic extracts of the stem powder were analyzed by high-performance thin-layer chromatography (HPTLC) for the identification of phytochemicals in the stem sections of Acacia. Furthermore, IONPs were synthesized by a chemical co-precipitation method by using the stem extract. The phytonanofabricated iron oxide particles were investigated by UV–Vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and Energy-dispersive X-ray spectroscopy (EDS) for elemental analysis. HPTLC confirmed the presence of several phenols and terpenoids in the ethanolic extracts of the stem. UV–Vis spectroscopy exhibited an absorbance peak at 380 nm, indicating the formation of IONPs, while FTIR spectroscopy showed the typical bands for Fe-O in the range of 599–1,000 cm−1 in addition to several functional groups of organic molecules at 1,596 cm−1, 2,313 cm−1, and 3,573 cm−1. XRD exhibits the amorphous nature of IONPs with peaks at 30.7, 35.5, and 62.7 nm. The IONPs were spherical-shaped, whose size varies from 10 to 70 nm, as confirmed by FESEM. EDS exhibited the presence of Fe, O, C, and NaCl. Finally, the phytonanofabricated iron oxide particles were utilized for the removal of brilliant green (BG) and Congo red (CR) dye from the aqueous solution. The removal efficiency of BG dye was up to 54.28%, while that of Congo red dye was up to 36.72% in 120 min and 60 min, respectively. Furthermore, the effect of pH and contact time was also assessed on both the dyes, where CR exhibited maximum removal at acidic pH, i.e., 47.5%, while BG showed maximum removal at pH 10, i.e., 76.59%.

show abstract

Section: Phase Identification Of Ionps By Xrdmentioning

confidence: 69%

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Patel,

Desai,

Patel

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

show abstract

“…Ti 4+ doping increased the donor density of the Fe 2 O 3 layer via the second annealing step in the absence of oxygen [8] . Ti‐doped Fe 2 O 3 /Ti‐felt was further modified by an Al 2 O 3 passivation layer and a cobalt phosphate (CoPi) OER co‐catalyst; porous Ti‐doped Fe 2 O 3 ‐Al 2 O 3 ‐CoPi exhibited a J photo of 0.85 mA cm −2 at 1.23 V vs. RHE in 1 M NaOH (pH 13.6) under 1‐sun illumination (AM1.5G) [31] . The relatively lower performance would be improved by adopting reported preparation methods for the highly efficient hematite photoanodes.…”

Section: Macroporous Photoelectrodesmentioning

confidence: 99%

“…Hence, another type of polymer electrolyte membrane that is suitable for use in alkaline environments is required. Recently, AEMs with hydroxide ion (OH − ) conductivities have been used with porous Fe 2 O 3 ‐based photoanodes [31] . A Ti‐doped Fe 2 O 3 layer was prepared on a titanium felt substrate and subsequently modified with an Al 2 O 3 passivation layer and a CoPi co‐catalyst.…”

Section: Polymer Electrolyte Photoelectrochemistrymentioning

confidence: 99%

Porous Transport Photoelectrodes Fabricated on Felt Substrates and Applications to Polymer Electrolyte Photoelectrochemistry

Amano,

Surya,

Singh

2024

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

Photoelectrochemistry is used to develop solar energy technologies for fuel production and chemical transformations. Semiconductor materials such as TiO2, WO3, BiVO4, Fe2O3, and Cu2O are often investigated in devices designed to convert light energy into chemical energy, including for the production of hydrogen by photoelectrochemical (PEC) water splitting. The oxide electrodes are of significant interest due to their potential for efficient PEC reactions with high durability and their relatively low costs compared to other semiconductor materials. This review highlights the roles played by macroporous photoelectrodes in the development of highly efficient photoelectrodes and advanced PEC systems using polymer electrolytes. Three‐dimensional conductive fiber substrates, such as titanium felt and carbon paper, outperform their two‐dimensional counterparts owing to their larger interfacial areas that enhance PEC properties. The macroporous structures facilitate mass‐transport‐limited reactions when integrated with polymer electrolytes in membrane electrode assemblies. Such configurations are promising for PEC splitting of pure water, and for transforming gaseous molecules such as water vapor, volatile organic compounds, and methane. Optimizing the configuration, including electrode materials selection and ionomer‐coating treatment, can potentially improve the performance of polymer electrolyte membrane PEC cells. Porous transport photoelectrodes integrated with proton/anion‐exchange membranes offer significant opportunities for advanced PEC applications.

show abstract

Enhanced electrochemical performances of SrMoO4/MWCNT-PVP nanocomposites as electrocatalyst for hydrogen evolution reaction

Swathi,

Yuvakkumar,

Ravi

et al. 2024

Ceramics International

View full text Add to dashboard Cite

Anion-Exchange Membrane–Photoelectrochemical Water Splitting Using Porous Hematite Photoanodes

Cited by 16 publications

References 27 publications

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Porous Transport Photoelectrodes Fabricated on Felt Substrates and Applications to Polymer Electrolyte Photoelectrochemistry

Enhanced electrochemical performances of SrMoO4/MWCNT-PVP nanocomposites as electrocatalyst for hydrogen evolution reaction

Contact Info

Product

Resources

About