Integrating N and F co-doped TiO2 nanotubes with ZIF-8 as photoelectrode for enhanced photo-electrocatalytic degradation of sulfamethazine

Jia, Meiying; Yang, Zhen; Xu, Haiyin; Song, Peipei; Xiong, Weiping; Cao, Jian; Zhang, Yanru; Xiang, Yinping; Hu, Jiahui; Zhou, Chengyun; Yang, Yang; Wang, Wenjun

doi:10.1016/j.cej.2020.124388

Cited by 133 publications

(20 citation statements)

References 52 publications

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“…The potential promotes the charge carrier separation and travels away e − CB from the TiO 2 photo-anode to a cathode. This is a dynamic way to retard the exothermal recombination of charge carriers and to extend the hole's lifetime, which means a better catalytic activity (Egerton et al 2006;Li et al 2007;Jia et al 2020). The oxidation and reduction happen on the surface of the two different electrodes and compete favorably with electron/hole recombination (Leng et al 2006;Zarei 2019).…”

Section: Vbmentioning

confidence: 99%

Employing speciation of metals to assess photo-assisted electrochemical efficiency for improving rainwater quality in Tehran, Iran

Ebraheim

Karbassi

Mehrdadi

2021

Int. J. Environ. Sci. Technol.

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Photo-assisted electrochemical process is a promising technology for a clean ecosystem. It is largely utilized for recovering metals and oxidizing recalcitrant organic compounds. This paper aims to discuss the performance of the photo-oxidation and reduction by applying semiconductor photo-catalysis as the anode and graphite as the cathode for treating rainwater in Tehran, Iran. Organic pollutants and different metals were investigated to study the probable roles of the anodic potential, the gap between electrodes, and the concentration of electrolytes in the possible mechanisms. The laboratory experiments which lasted for 120 min exhibited that the best performance for organic, iron, manganese, and lead removal was at the anodic potential of 10 V and gap of 6 cm. But, for zinc and cadmium, the best performance occurred at the anodic potential of 5.5 V and sodium chloride of 0.65 g/L. The presented reactions and mechanisms demonstrated incidents using the treatment process. They were identical to the presented dendrogram and Pourbaix diagrams. The results of the diagrams showed iron, manganese, and lead were removed by oxidation at the photo-anode. Zinc and cadmium were mainly removed by precipitation. Chemical oxygen demand, iron, manganese, and lead were significantly related and behaved similarly in the treatment process. Their removal was controlled by all the analyzed parameters. This paper may present a cost-effective approach for removing organic and metallic pollutants by photo-assisted electrochemical process. It can be suggested for future evolution of photo-assisted electrochemical on the treatment applications of rainwater.

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Section: Vbmentioning

confidence: 99%

Employing speciation of metals to assess photo-assisted electrochemical efficiency for improving rainwater quality in Tehran, Iran

Ebraheim

Karbassi

Mehrdadi

2021

Int. J. Environ. Sci. Technol.

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“…Figure 12 a depicts the enhancement of photocurrent response when bare TiO 2 is modified with a calcined zeolitic imidazolate framework (ZIF) that also makes the composite material light visible active. The application of the ZIF-8/NF-TiO 2 photoelectrode proposed by Jia et al [ 109 ] demonstrated high PEC activity on the degradation of sulfamethoxazole with an increase of two orders of magnitude in degradation kinetics rate, from a k 1 of 4 × 10 −4 min −1 for TiO 2 up to 8.9 × 10 −2 min −1 for ZIF-8/NF-TiO 2 (see Figure 12 b). Experimental results evidenced that the electrification results in a synergistic enhancement given the combination of effects from electrochemically driven processes with photo-assisted catalysis as shown in Figure 12 c. Thus, the use of a MOF-derived photoelectrode shows increased degradation performance due to the unique MOFs features.…”

Section: Photoelectrocatalytic Applications Of Mofs In Environmental Remediationmentioning

confidence: 98%

“…( a ) Photocurrent response, ( b ) photoelectrocatalytic abatement of sulfamtheoxazole by PEC, ( c ) comparative performance between photocatalysis (PC), electrocatalysis (EC), and PEC. Adapted from [ 109 ].…”

Section: Figurementioning

confidence: 99%

The Surge of Metal–Organic-Framework (MOFs)-Based Electrodes as Key Elements in Electrochemically Driven Processes for the Environment

et al. 2021

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Metal–organic-frameworks (MOFs) are emerging materials used in the environmental electrochemistry community for Faradaic and non-Faradaic water remediation technologies. It has been concluded that MOF-based materials show improvement in performance compared to traditional (non-)faradaic materials. In particular, this review outlines MOF synthesis and their application in the fields of electron- and photoelectron-Fenton degradation reactions, photoelectrocatalytic degradations, and capacitive deionization physical separations. This work overviews the main electrode materials used for the different environmental remediation processes, discusses the main performance enhancements achieved via the utilization of MOFs compared to traditional materials, and provides perspective and insights for the further development of the utilization of MOF-derived materials in electrified water treatment.

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“…Thus, due to the strong oxidizing ability, photocatalysis is an efficient method to decompose organic contaminants in water, especially in heavy contaminated industrial waste waters, which are not suitable for biological processing due to their toxicity to microorganisms (Imbhadon and Fitzpatrick et al 2013). Photocatalytic degradation of various organic pollutants including dyes (Sałata et al 2019, Siwińska-Ciesielczyk et al 2020, phenol (Shet andShetty 2015, Norman et al 2018), antibiotics and pharmaceuticals (Liu et al 2018;Sabouni and Gomaa 2019;Jia et al 2020) with the use of broad variety of photocatalysts is comprehensively studied and well described. However, there is a considerable lack of reports regarding photocatalytic degradation of surfactants.…”

Section: Introductionmentioning

confidence: 99%

UV-light photocatalytic degradation of non-ionic surfactants using ZnO nanoparticles

Huszla

Wysokowski

Zgoła‐Grześkowiak

et al. 2021

Int. J. Environ. Sci. Technol.

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The aim of this study was to evaluate the performance of zinc oxide nanoparticles as a photocatalyst for photodegradation of two model non-ionic surfactants (Triton X-100 and C12E10). The first part of the investigation was focused on the synthesis and characterization of ZnO nanoparticles, since its crystalline structure strongly impacts its photocatalytic properties. Based on the results of the XRD analysis, it was concluded that the obtained material occurred in the form of hexagonal wurtzite with a polycrystalline structure. FT-IR and XPS analyses were used to elucidate and confirm the nanomaterial structure, whereas investigation of N2 adsorption/desorption and SEM/TEM imaging allowed to establish that the synthesized ZnO was characterized as a mesoporous material with uniform, spherical shape and particle size fluctuating between 90 and 130 nm. The second part of the study included spectrophotometric assessment of the photodegradation process. The use of the obtained ZnO nanoparticles allowed to achieve efficient photodegradation of both C12E10 (92%) and Triton X-100 (82%) after 1 h of UV irradiation. The Langmuir–Hinshelwood mechanism was used to describe the reaction kinetics. Subsequent LC-MS/MS analysis of the residues indicated that the degradation mechanism is most likely based on both central fission of the surfactant molecules with further terminal oxidation of poly(ethylene glycol) and terminal oxidation leading to carboxylic derivatives of surfactants.

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Integrating N and F co-doped TiO2 nanotubes with ZIF-8 as photoelectrode for enhanced photo-electrocatalytic degradation of sulfamethazine

Cited by 133 publications

References 52 publications

Employing speciation of metals to assess photo-assisted electrochemical efficiency for improving rainwater quality in Tehran, Iran

Employing speciation of metals to assess photo-assisted electrochemical efficiency for improving rainwater quality in Tehran, Iran

The Surge of Metal–Organic-Framework (MOFs)-Based Electrodes as Key Elements in Electrochemically Driven Processes for the Environment

UV-light photocatalytic degradation of non-ionic surfactants using ZnO nanoparticles

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