Electrocatalysis degradation of tetracycline in a three-dimensional aeration electrocatalysis reactor (3D-AER) with a flotation-tailings particle electrode (FPE): Physicochemical properties, influencing factors and the degradation mechanism

Yang, Shumin; Feng, Yi; Gao, Dong; Wang, Xinwei; Suo, Ning; Yu, Youming; Zhang, Shoubin

doi:10.1016/j.jhazmat.2020.124361

Cited by 88 publications

(21 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The concentration of TC was measured by high performance liquid chromatography (HPLC, 1260 system, Agilent, USA) equipped with a UV detector at wavelength of 355 nm [ 36 ] and Purospher RP-18 column (5 μm, 25 cm × 4.6 mm). The methanol/acetic acid (V: V = 9: 1) mixed solution was used as the mobile phase with flow rate of 1.0 mL/min and the injection volume was 20 μL.…”

Section: Methodsmentioning

confidence: 99%

Preparation of Graphite-UiO-66(Zr)/Ti electrode for efficient electrochemical oxidation of tetracycline in water

et al. 2022

View full text Add to dashboard Cite

Tetracycline (TC) is widely-used antibiotic pollutant with high toxicity, refractory, persistence and bacteriostasis, and its removal from water needs to be enhanced. In this work, a novel Graphite-UiO-66(Zr)/Ti electrode was successfully prepared and evaluated for electrochemical oxidation degradation of TC. The electrochemical performance tests indicate the Graphite-UiO-66(Zr)/Ti electrode had higher electrochemical oxidation activity, which achieved higher TC removal efficiency (98.1% ± 1.5%) than Ti plate (65.2% ± 3.5%), Graphite-MIL-53(Al)/Ti electrode (79.5% ± 2.9%) and Graphite-MIL-100(Fe)/Ti electrode (89.0% ± 2.6%). The influence of operating condition was also systematically studied, and the optimized condition was pH 5.0, 20 mA/cm2 current density and 0.1 M electrolyte (Na2SO4). Through the liquid chromatography mass spectrometry (LC-MS), the TC degradation pathway by Graphite-UiO-66(Zr)/Ti electrode oxidation was proposed. Under the •OH free radical oxidative decomposition effect, the double bond, phenolic group and amine group of TC were attacked. TC was transformed into intermediate product ① (m/z = 447), then was further degraded to intermediates ② (m/z = 401) and ③ (m/z = 417). The latter was fragmented into small fractions ④ (m/z = 194), ⑤but-2-enedioic acid (m/z = 116) and ⑥oxalic acid (m/z = 90, the proposed intermediate). In addition, TC removal remained at 89.6% ± 2.7% in the sixth cycle of operation, which confirmed the efficient reusability and stability for antibiotics removal from water.

show abstract

Section: Methodsmentioning

confidence: 99%

Preparation of Graphite-UiO-66(Zr)/Ti electrode for efficient electrochemical oxidation of tetracycline in water

et al. 2022

View full text Add to dashboard Cite

show abstract

“…In addition, the nanosheet structure of CNNS could enhance the transport of e À and inhibit the recombination of e À and h + . 29 This indicated that the CNNS/agar 4 composite hydrogel exhibited a significantly enhanced photocatalytic degradation activity for the removal of tetracycline compared with the BCN/agar composite hydrogel.…”

Section: Removal Performance For Tetracyclinementioning

confidence: 95%

Facile preparation of graphitic carbon nitride nanosheet/agar composite hydrogels for removal of tetracycline via the synergy of adsorption and photocatalysis

Wang

Wei

2022

New J. Chem.

View full text Add to dashboard Cite

show abstract

“…[7] The dye wastewater containing MB has the characteristics of serious pollution and difficult treatment. [8] At present, the main methods for dye removal include adsorption, [9] photocatalytic method, [10] electrochemical degradation, [11] and membrane filtration, [12] among which, photocatalytic method is greatly affected by light source and weather; electrochemical degradation is expensive; membrane filtration method is difficult to be applied in large-scale production due to its high production cost and high operating pressure. To this end, the characteristics of low cost, low environmental pollution and high efficiency make adsorption the most widely used method for removing dyes in water.…”

Section: Introductionmentioning

confidence: 99%

High‐Efficiency Adsorption Performance of Cobalt Alginate/ Graphene Oxide Aerogel Prepared by Green Method for Methylene Blue

Sun

Chen

et al. 2022

ChemistrySelect

View full text Add to dashboard Cite

In this paper, cobalt alginate/graphene oxide (CA/GO) aerogel composites were prepared by wet spinning and vacuum freezing. The cobalt ion only ion-pairs with the carboxyl ion in the alginate, and other groups such as hydroxyl were not combined with cobalt ions, generating free hydroxyl, and thus improving the adsorption performance and recyclability of the composite material. The adsorption properties of CA/GO aerogels gradually improved with the increase of pH. The maximum adsorption capacity of CA/GO aerogel at 298 K was 294.18 mg.g À 1 , and the adsorption process of methylene blue (MB) on CA/GO aerogel conformed to Langmuir isotherm model and pseudo-second-order model. The adsorption of MB on CA/GO is mainly attributed to electrostatic attraction, hydrogen bonding and π-π interaction. Thermodynamic analysis showed that the adsorption process was both spontaneous and exothermic. After the CA/GO aerogel was reused for 5 times, the removal rate reached as high as 80.256 %. Compared with other adsorbents, the prepared adsorbent was proven to be provided with good removal capacity for MB, and expected to be widely applied to the adsorption treatment of MB wastewater.

show abstract

Electrocatalysis degradation of tetracycline in a three-dimensional aeration electrocatalysis reactor (3D-AER) with a flotation-tailings particle electrode (FPE): Physicochemical properties, influencing factors and the degradation mechanism

Cited by 88 publications

References 60 publications

Preparation of Graphite-UiO-66(Zr)/Ti electrode for efficient electrochemical oxidation of tetracycline in water

Preparation of Graphite-UiO-66(Zr)/Ti electrode for efficient electrochemical oxidation of tetracycline in water

Facile preparation of graphitic carbon nitride nanosheet/agar composite hydrogels for removal of tetracycline via the synergy of adsorption and photocatalysis

High‐Efficiency Adsorption Performance of Cobalt Alginate/ Graphene Oxide Aerogel Prepared by Green Method for Methylene Blue

Contact Info

Product

Resources

About