Interface engineering strategy of a Ti4O7 ceramic membrane via graphene oxide nanoparticles toward efficient electrooxidation of 1,4-dioxane

Li, Wei; Xiao, Runlin; Xu, Jiale; Lin, Hui; Yang, Kui; He, Kuanchang; Tang, Longxiang; Chen, Jie; Wu, Yiping; Lv, Shanshan

doi:10.1016/j.watres.2022.118287

Cited by 32 publications

(17 citation statements)

References 61 publications

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“…In addition, the triplicate experiments for each treatment always exhibited satisfactory treatment effect in swine wastewater treatment, confirming the durability of Ti 4 O 7 electrode prepared in this study. The stability of Ti 4 O 7 in different reaction conditions has also been proved in the previous studies [ 51 , 52 , 53 ]. Therefore, it is feasible in swine wastewater treatment to use EO methods by Ti 4 O 7 anode.…”

Section: Resultssupporting

confidence: 63%

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

Wan

Wang

et al. 2022

IJERPH

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With the rapid development of breeding industry, the efficient treatment of dramatically increasing swine wastewater is gradually becoming urgent. In particular, the development of application technologies suitable for the relatively small piggeries is critical due to the time cost and space requirements of conventional biological methods. In this study, Electrochemical oxidation (EO) was selected to systematically explore the treatment performance of three different swine wastewaters by Ti4O7 anode. It was observed that the colors changed from dark brown to light yellow after 60 min treatment at 50 mA/cm2, and the removal rates of turbidity and suspended solids ranged from 89.36% to 93.65% and 81.31% to 92.55%, respectively. The chemical oxygen demand (COD), ammonia nitrogen (NH3-N) and total phosphorus (TP) of all the three swine wastewaters were simultaneously removed to a very low concentration in 120 min, especially for sample III, 61 ± 9 mg/L of COD, 6.6 ± 0.4 mg/L of NH3-N and 5.7 ± 1.1 mg/L of TP, which met the Discharge Standard of Pollutants for Livestock and Poultry Breeding (GB 18596-2001). Moreover, 70.93%–85.37% mineralization rates were also achieved in 120 min, confirming that EO treatment by Ti4O7 could efficiently remove the organic matters in wastewater. Excitation–emission matrix (EEM) and UV-vis spectrum characterization results further proved that aromatic compounds and macromolecules in wastewater were rapidly removed, which played important roles in the mineralization processes. The findings here provided an efficient and environment-friendly technology for swine wastewater treatment.

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Section: Resultssupporting

confidence: 63%

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

Wan

Wang

et al. 2022

IJERPH

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“…EE/O values reported from other types of advanced treatment, such as UV/H 2 O 2 , 11,13,49–51 UV/TiO 2 , 51,52 vacuum UV, 51,53 electrochemical oxidation, 54 ozone-based AOP, 55–57 and non-thermal plasma, 58–60 were, in general, ranging from 0.13 to 134 kWh m −3 per order (Table 2). It should be noted that for a few non-UV-based AOPs, such as ozone/H 2 O 2 (peroxone), the system's overall energy consumption ( e.g.…”

Section: Resultsmentioning

confidence: 94%

Emerging investigator series: low doses of electron beam irradiation effectively degrade 1,4-dioxane in water within a few seconds

Lee

Londhe

Cooper

et al. 2023

Environ. Sci.: Water Res. Technol.

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“…Additionally, heterojunction-structured Ti 4 O 7 IEMs may facilitate the occurrence of dominant reactions for • OH generation by altering the adsorption energy of the elementary steps of water splitting. For instance, a Ti 4 O 7 IEM doped by graphene oxide nanoparticles (NPs) showed a higher electron transfer rate and at least 2.5 times higher • OH production than the pristine Ti 4 O 7 IEM . Besides, a carbon-composited Ti 4 O 7 (with a low carbon content of 0.1 wt %) exhibited reduced interfacial electron transfer resistance, ascribed to the oxygen-containing functional groups .…”

Section: Ti4o7 Iemsmentioning

confidence: 99%

Inorganic Electrified Membrane: From Basic Science to Performance Translation

et al. 2023

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Decentralized water systems necessitate intensified, robust, and modular water treatment technologies for enhanced efficacy and resilience of the water purification process. Inorganic electrified membranes (IEMs) are gaining momentum in decentralized water systems by combining the versatility of electro-filtration processes with the favorable properties of inorganic materials, namely, strong mechanical strength, chemical stability, and hydrophilicity. This review quantitatively assesses three mainstream IEMs (i.e., Ti4O7, carbon, and metallic IEMs) from a fundamental perspective of the intrinsic electrochemical properties of the IEM materials and their translation into the IEM performances. We specifically (i) analyze the •OH production selectivity by Ti4O7 IEMs based on electrochemical thermodynamics and material science; (ii) differentiate degradation mechanisms of carbon IEMs in the context of various water matrices and propose strategies to address major concerns of avoiding membrane passivation and improving Faradaic efficiency of carbon IEMs; and (iii) highlight metallic IEMs doped with Ag or Pd, i.e., elucidate the combined sterilization mechanism by Ag-IEM via Ag+ dissolution and electro-phenomena, and unravel the unique hydrogenolysis ability of Pd-IEM for hydrodeoxygenation and persulfate electro-activation. We conclude by identifying the remaining obstacles of IEMs and present possible interdisciplinary approaches for IEM optimization.

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Interface engineering strategy of a Ti4O7 ceramic membrane via graphene oxide nanoparticles toward efficient electrooxidation of 1,4-dioxane

Cited by 32 publications

References 61 publications

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

A Case Study of Swine Wastewater Treatment via Electrochemical Oxidation by Ti4O7 Anode

Emerging investigator series: low doses of electron beam irradiation effectively degrade 1,4-dioxane in water within a few seconds

Inorganic Electrified Membrane: From Basic Science to Performance Translation

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