Thermal decomposition based fabrication of dimensionally stable Ti/SnO2–RuO2 anode for highly efficient electrocatalytic degradation of alizarin cyanin green

Chen, Shouxian; Zhou, Lianhong; Yang, Tiantian; He, Qihang; Zhou, Pengcheng; He, Ping; Dong, Faqin; Zhang, Hui; Jia, Baohua

doi:10.1016/j.chemosphere.2020.128201

Cited by 31 publications

(11 citation statements)

References 54 publications

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“…57 Under acidic conditions, the RuO 2 -SnO 2 /Ti electrode exhibits a considerably longer lifespan than the RuO 2 /Ti electrode. 58,59 At the same time, the SnO 2 -Sb 2 O 5 mixture has been shown to provide a good platform for producing chlorine from seawater electrocatalysis. 11,12 Theoretically, the Sb 5+ can be well incorporated with Sn 4+ due to a similar ionic radius.…”

Section: Precious Metal-based Electrocatalystsmentioning

confidence: 99%

Recent advances in electrocatalytic chloride oxidation for chlorine gas production

et al. 2021

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Section: Precious Metal-based Electrocatalystsmentioning

confidence: 99%

Recent advances in electrocatalytic chloride oxidation for chlorine gas production

et al. 2021

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“…Among them, A 0 is the initial absorbance of the target organic solution, and A t is the absorbance of the target degradation product at a degradation time t (Chen et al 2020c;Zhang et al 2020).…”

Section: Electrochemical Measurementmentioning

confidence: 99%

“…The improved electrode measures the COD value more accurately and has a longer lifetime than the original Cu/CuO one, but the sensitivity is reduced by about 15%. Compared with these methods, electrocatalytic approaches using Ti/TiO 2 electrodes are more promising because of the superior oxidative abilities of TiO 2 and the short time required for analysis (Cheshideh & Nasirpouri 2017;Ramasundaram et al 2017;Yi et al 2019;Chen et al 2020c). Moreover, TiO 2 nanomaterials are inexpensive, non-toxic, and environmentally friendly, and therefore have recently attracted interest in improving the catalytic degradation of various organic substances (Song et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Determination of chemical oxygen demand in mixed organic solution by Ti/TiO2 nanotube array electrode method

Wang

2021

Water Science and Technology

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Chemical oxygen demand (COD) is a significant parameter for analyzing water quality. However, the detection methods still suffer from the problems of secondary pollution, use of harmful substances, complicated operations, etc. To trace these problems, a Ti/TiO2 nanotube array (NTA) electrode was successfully prepared by the secondary anodic oxidation method in this work. The prepared electrode was used to determine COD of single- and multi-component solutions (including aniline, rhodamine B, and potassium hydrogen phthalate). The Ti/TiO2 NTA electrode exhibited higher electrochemical oxidation efficiency than the neat Ti one. The electrocatalytic reactions of the target organics on the electrode surface were confirmed to conform to the first-order kinetic process. Within COD range of 5–150 mg/L, COD value was not only proportional to the anodizing current but also related to organic matter itself. The activation energies of electro-oxidation reaction of different substances were different from each other (An: 14.25 kJ/mol, RhB: 18.56 kJ/mol, and KHP: 35.32 kJ/mol), indicating the differences in their dynamic behaviors on the electrode surface. The related bias obtained for all successive measurements was below ± 5.8%. Therefore, we report a fast, effective, accurate, and well-reproducible COD detection method, which is feasible for both single-component and multiple-component organic solutions.

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“…In the literature, some works report the application of DSAs for dye oxidation. Chen et al used DSA of composition Ti/SnO 2 –RuO 2 in the degradation of the dye Alizarin Cyanin green, where the process demonstrated good performance and decolorization efficiency of 80.4% [ 20 ]. SnO 2 is a good material to be applied in DSAs due to its high stability corrosion [ 21 ], and in this way, it has also been used by Bravo-Yumi et al (2020), combined with oxide of iridium and antimony, for the degradation of the dyes: Green A, Brown DR, and Violet RL, where the discoloration was greater than 86% in all cases after 6 min of processing [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

et al. 2022

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Indigo Blue (IB) is a dye widely used by the textile sector for dyeing cellulose cotton fibers and jeans, being considered a recalcitrant substance, and therefore resistant to traditional treatments. Several methodologies are reported in the literature for the removal or degradation of dyes from the aqueous medium, among which photoelectrocatalysis stands out, which presents promising results in the degradation of dyes when a dimensionally stable anode (DSA) is used as a photoanode. In the present work, we sought to investigate the efficiency of a Ti/RuO2-TiO2 DSA modified with tin and tantalum for the degradation of indigo blue dye by photoelectrocatalysis. For this, electrodes were prepared by the thermal decomposition method and then a physical–chemical and electrochemical analysis of the material was carried out. The composition Ti/RuO2-TiO2-SnO2Ta2O5 (30:40:10:20) was compared to Ti/RuO2-TiO2 (30:70) in the photocatalysis, electrocatalysis, and photoelectrocatalysis tests. The photocatalysis was able to degrade only 63% of the IB at a concentration of 100 mg L−1 in 3 h, whereas the electrocatalysis and photoelectrocatalysis were able to degrade 100% of the IB at the same initial concentration in 65 and 60 min, respectively.

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Thermal decomposition based fabrication of dimensionally stable Ti/SnO2–RuO2 anode for highly efficient electrocatalytic degradation of alizarin cyanin green

Cited by 31 publications

References 54 publications

Recent advances in electrocatalytic chloride oxidation for chlorine gas production

Recent advances in electrocatalytic chloride oxidation for chlorine gas production

Determination of chemical oxygen demand in mixed organic solution by Ti/TiO2 nanotube array electrode method

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

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