Three-dimensional photoelectrocatalytic degradation of the opaque dye acid fuchsin by Pr and Co co-doped TiO2 particle electrodes

Yu, Jiahui; Zou, Jie; Xu, Peng; He, Qiulai

doi:10.1016/j.jclepro.2019.119744

Cited by 70 publications

(9 citation statements)

References 41 publications

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“…When the initial pH of the solution was alkaline atmosphere, it could promote H 2 O near to the Ti‐Si‐Sn‐Sb/GAC particle electrodes to generate large number of ·OH. These ·OH are the reactive species for the degradation of PAP to achieve the purpose of mineralization . Thus, a series of electrochemical reactions may occur on the surface of the particle electrodes.…”

Section: Resultsmentioning

confidence: 71%

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Degradation of p‐aminophenol wastewater using Ti‐Si‐Sn‐Sb/GAC particle electrodes in a three‐dimensional electrochemical oxidation reactor

Zhang

Meng

et al. 2020

Applied Organom Chemis

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In this study, Ti‐Si‐Sn‐Sb/GAC particle electrodes were prepared by sol–gel method. The particle electrodes were characterized by SEM, XRD, EDX, and BET then used to carry out three‐dimensional (3D) electrocatalytic oxidation degradation on simulated refractory p‐aminophenol (PAP) wastewater. The effects of initial pH, cell voltage, aeration flow rate and initial PAP concentration on degradation experiments were investigated. Under the optimal conditions, the PAP and COD removal rates were 89.45% and 75.17% respectively. In addition, the possible degradation mechanism of PAP was further investigated by UV–Vis and HPLC. Finally, it was found that the Ti‐Si‐Sn‐Sb/GAC particle electrodes with high catalytic activity and excellent stability could significantly improve the PAP wastewater removal efficiency.

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Section: Resultsmentioning

confidence: 71%

“…These ÁOH are the reactive species for the degradation of PAP to achieve the purpose of mineralization. [43,44] Thus, a series of electrochemical reactions may occur on the surface of the particle electrodes. The mechanism was described as follows:…”

Section: Effect Of Initial Phmentioning

confidence: 99%

Degradation of p‐aminophenol wastewater using Ti‐Si‐Sn‐Sb/GAC particle electrodes in a three‐dimensional electrochemical oxidation reactor

Zhang

Meng

et al. 2020

Applied Organom Chemis

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“…The active sites along the crystal planes in the same direction will also establish a directional electric potential field, which is conducive to the separation of photogenerated carriers. In addition, a matrix with more active sites will also improve the photocatalytic ability of the composite nanocatalyst [35][36][37][38].…”

Section: Discussionmentioning

confidence: 99%

The pre-acidizing corrosion on the surface of TiO2 enhanced the photocatalytic activity of g-C3N4/TiO2

Wang

Sun

et al. 2021

J Mater Sci: Mater Electron

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In this work, g-C 3 N 4 /TiO 2 nanocatalysts were prepared by high-voltage electrospinning and hydrothermal methods. The surface of the pure TiO 2 nanomaterial was treated by acidification before it was combined with g-C 3 N 4 .Various characterization methods were used to characterize the prepared photocatalyst. RhB (20 mg/L) was degraded as a target-degradable pollutant, the degradation efficiency of the nanocatalyst was measured under UV-Visible light. The results show that the degradation efficiency of the g-C 3 N 4 / TiO 2 nanocomposite material that has undergone pre-acidification treatment is much higher than that of the untreated catalyst.

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“…Some of the efficient AOPs for removal of dyes and other toxic pollutants from textile effluent include ozonation, [ 14–17 ] Fenton's reagents, [ 18,19 ] H 2 O 2 ‐UV, [ 20,21 ] photoelectro catalysis, [ 22 ] and nanoparticles. [ 23,24 ] Membrane processes (nanofiltration, ultrafiltration, microfiltration, and reverse osmosis) have also been applied for textile wastewater treatment as direct remediation [ 25 ] or as a polishing step, with intent to reuse treated effluents, preceded by coagulation, ozonation, and carbon adsorption processes as pretreatments. [ 16 ] All AOPs have been found effective yet expensive processes.…”

Section: Introductionmentioning

confidence: 99%

Textile Effluent Treatment Using Natural Coagulant Opuntia stricta in Comparison with Alum

Hussain

Haydar

2021

CLEAN Soil Air Water

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Natural plant‐based coagulants have gained popularity as sustainable and cost‐effective alternatives to chemical coagulants. In this study, a novel plant‐based coagulant, Opuntia stricta (O. stricta), is evaluated in comparison to alum for the treatment of textile wastewater. Response surface methodology is employed to optimize the treatment variables pH and coagulant dose. Efficacy of coagulants are compared based on removal of total suspended solids (TSS), chemical oxygen demand (COD), and color. Coagulants are characterized using Fourier transform infrared (FTIR) spectroscopy and flocs produced are analyzed using scanning electron microscopy (SEM). Alum shows a maximum removal of 87%, 75.9%, and 79.6% for TSS, COD, and color, respectively (optimum pH 9; dose: 103 mg L−1). O. stricta gives a maximum removal of 80.2%, 58.4%, and 77.3% for TSS, COD, and color, respectively (optimum pH 10.3; dose: 162.2 mg L−1). The optimum pH of O. stricta aligns well with actual pH of textile effluent (i.e. 10.6). Among the target pollutants, removal of COD is more dependent on pH as compared to the dose of coagulants. Coagulation agent in cladodes of O. stricta is postulated to be polysaccharides, which acts through adsorption and interparticle bridging mechanism of coagulation.

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Three-dimensional photoelectrocatalytic degradation of the opaque dye acid fuchsin by Pr and Co co-doped TiO2 particle electrodes

Cited by 70 publications

References 41 publications

Degradation of p‐aminophenol wastewater using Ti‐Si‐Sn‐Sb/GAC particle electrodes in a three‐dimensional electrochemical oxidation reactor

Degradation of p‐aminophenol wastewater using Ti‐Si‐Sn‐Sb/GAC particle electrodes in a three‐dimensional electrochemical oxidation reactor

The pre-acidizing corrosion on the surface of TiO2 enhanced the photocatalytic activity of g-C3N4/TiO2

Textile Effluent Treatment Using Natural Coagulant Opuntia stricta in Comparison with Alum

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