Electrodeposited chromium-doped α-Fe2O3 under various applied potential configurations for solar water splitting

Bouhjar, Feriel; Derbali, Lotfi; Marı́, B.; Bessaı̈s, B.

doi:10.1016/j.rinp.2020.102996

Cited by 15 publications

(10 citation statements)

References 25 publications

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“…The sample was then kept in dark to attain adsorption-desorption equilibrium. The sample was then kept under standard light with constant and continuous stirring for different irradiation times (1,3,5,7,9, and 11 min). After the reaction time completion, the photocatalyst was separated through centrifugation (12000 rpm for 10 min).…”

Section: Photodegradation Study Of Methylene Blue Dyementioning

confidence: 99%

Scavenging of Organic Pollutant And Fuel Generation Through Cost-Effective And Abundantly Accessible Rust: An Economical Approach For Waste Management And Energy Generation

Khan

Gul

et al. 2021

Preprint

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At present, wastes management and energy generation are the foremost concerns due to their direct relationship with the biological species and environment. Herein we report utilization of iron rust (inorganic pollutant) as photocatalyst for photodegradation of methylene blue (MB) dye (organic pollutant) under visible light (economic) and water oxidation (energy generation). Iron rust was collected from metallic pipes and calcined in the furnace at 700 °C for 3 h in order to remove moisture/volatile content. The uncalcined and calcined Rust are characterized through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and Fourier transform infrared (FTIR) analysis, X-Ray Diffraction (XRD) and Thermogravematric analysis (TGA). The morphological study illustrated that the shape of uncalcinedand calcined iron rust is spongy, porous, and agglomerated. The XRD and DLS particle size is in a few hundred-nanometer range.The photodegradation (PD) investigation shows that calcined Rust is a potent photocatalyst for the PD of modeled MB and degraded about 94% in a very short time of 11 min. The photoelectrochemical (PEC) measurements revealed that calcined Rust is more active than uncalcined Rust under simulated 1-SUN illumination with respective photocurrent densities of ~0.40 and ~0.32 mA/cm2. These results demonstrate that cheaper and abundantly available Rust can be a useful candidate for environmental and energy applications.

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Section: Photodegradation Study Of Methylene Blue Dyementioning

confidence: 99%

Scavenging of Organic Pollutant And Fuel Generation Through Cost-Effective And Abundantly Accessible Rust: An Economical Approach For Waste Management And Energy Generation

Khan

Gul

et al. 2021

Preprint

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“…Interest in traditional iron oxide hematite nanomaterials having featured surface in composition and texture arises due to their effectiveness in plethora modern applications, for example, solar cell, 1 water splitting, 2 gas sensor, 3 photocatalytic, 4 Electro‐Fenton, 5 etc. Having diversified applications is synonymous with diverse and effective fabrication methods, from which arise superior properties.…”

Section: Introductionmentioning

confidence: 99%

“…Previous works on α‐Fe 2 O 3 nanomaterials amply highlight their structural, chemical, electrical and optical properties. Thereof, it is mentioned that the hematite α‐Fe 2 O 3 nanomaterials are low cost semiconductors with n‐type conductivity, stable rhombohedral structure, considerable bandgap (1.9‐2.2 eV), and high thermal and electrochemical stability 2,3,8 . For instance, Yan et al 10 .…”

Section: Introductionmentioning

confidence: 99%

“…Thereof, it is mentioned that the hematite α-Fe 2 O 3 nanomaterials are low cost semiconductors with n-type conductivity, stable rhombohedral structure, considerable bandgap (1.9-2.2 eV), and high thermal and electrochemical stability. 2,3,8 For instance, Yan et al 10 applied Si-doped α-Fe 2 O 3 with different Si/Fe ratio as ozone catalyst in ozonation of nitrobenzene in an aqueous solution. Whereas, the Si particles were applied as the carrier of Fe 2 O 3 catalytic sites for the decomposition of ozone into hydroxyl radical.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, these enhancements increased the photocurrents of the co-doped α-Fe 2 O 3 photoanode, which considerably improved the photoelectrochemical water splitting activity. In addition, Bouhjar et al 12 reported the electrodeposited Cr-doped Fe 2 O 3 under various applied potential for enhanced water splitting activity. They found that the deposited films had high photoactivities because of the Cr doping, which increased the active surface area.…”

Section: Introductionmentioning

confidence: 99%

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Microtexture analysis of copper‐doped iron oxide thin films prepared by air pneumatic spray

Ghribi

Ţălu

Chouikh

et al. 2022

Journal of Microscopy

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The stereometric and fractal concepts are crucial tools to analyse, to verify, to report 3‐D microtexture of thin film surfaces on the nanometre scale and thereby to generate useful topographic characteristics for better understanding and steering them toward further improvements and rational use in modern applications. At first, the present work aimed to prepare hematite α‐Fe2O3 thin films with (0, 2, 4, 6 and 8 wt%) of Cu doping by using the air pneumatic spray method. Subsequently, the obtained pure α‐Fe2O3 and Cu‐doped α‐Fe2O3 thin films were characterised by XRD device, which determines their polycrystalline nature with the rhombohedral hematite structure. Analysis by UV‐VIS absorption showed that the transmittance of the thin films is extinct in the wavelength from approximately 500 to 800 nm, revealing that the films have good optical absorbance in the visible region. The obtained bandgap values varied between 2.23 and 2.21 eV. At second stage, the stereometric and fractal analysis are applied on 3‐D image data of pure α‐ Fe2O3 and Cu‐doped α‐Fe2O3 thin films, which in prior generated using AFM device. Accordingly, the obtained statistical parameters such as surface roughness, density distribution of peaks, depths etc. were used to understand the influence of Cu doping on the 3D microtexture of pure α‐ Fe2O3 and Cu‐doped α‐ Fe2O3 thin film surfaces.

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High performance novel flexible perovskite solar cell based on a low-cost-processed ZnO:Co electron transport layer

2020

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Electrodeposited chromium-doped α-Fe2O3 under various applied potential configurations for solar water splitting

Cited by 15 publications

References 25 publications

Scavenging of Organic Pollutant And Fuel Generation Through Cost-Effective And Abundantly Accessible Rust: An Economical Approach For Waste Management And Energy Generation

Scavenging of Organic Pollutant And Fuel Generation Through Cost-Effective And Abundantly Accessible Rust: An Economical Approach For Waste Management And Energy Generation

Microtexture analysis of copper‐doped iron oxide thin films prepared by air pneumatic spray

High performance novel flexible perovskite solar cell based on a low-cost-processed ZnO:Co electron transport layer

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