Molybdenum sulfide Co-catalytic Fenton reaction for rapid and efficient inactivation of Escherichia coli

Li, Jun; Dong, Chencheng; Deng, Yuanxin; Ji, Jiahui; Bao, Shenyuan; Chen, Cuirong; Shen, Bin; Zhang, Jinlong; Xing, Mingyang

doi:10.1016/j.watres.2018.08.039

Cited by 222 publications

(34 citation statements)

References 44 publications

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“…The amount of E. coli was controlled by diluting the suspension with sterile physiological saline solution. The density of E. coli cell in both influent and effluent at various time was detected by the plate count method (Liu et al, ). Besides that, the comparison processes of the influent water flowing through the support without TiO 2 under UV irradiation or with TiO 2 in dark were also conducted.…”

Section: Methodsmentioning

confidence: 99%

Fabrication of a double‐helical photocatalytic module for disinfection and antibiotics degradation

Wang

Zhang

et al. 2019

Water Environment Research

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A double‐helical photocatalytic module was fabricated via an annealing process following an anodic oxidation procedure, and installed into a commercial UV sterilizer to structure continuous‐flow photocatalytic device. Benefiting from the superior mass transfer of double‐helical structure to common flat plate or corrugated plate, as well as the improved adhesion between Ti support and TiO2 layer, the photocatalytic device displayed potential in practical disinfection and degradation of organics. During photocatalytic disinfection process with 21 mJ/cm2 of UV dose, the concentration of Escherichia coli decreased from 1.71 × 107 CFU/L (typical for municipal wastewater) in influent to 2,720 CFU/L in effluent water, which met the wastewater discharged standard of China. Escherichia coli reactivation ratio for the photocatalytic device was only one‐tenth of that for UV sterilizer. Furthermore, taking phenol, bisphenol A, and four antibiotics as targets, the device was demonstrated to promote the degradation of photodegradable pollutants via photocatalysis. These results highlight a feasibility of photocatalytic technology as a supporting role in practical wastewater treatment. Practitioner points TiO2 nanotube array was embedded in the surface of double‐helical Ti support to avoid detachment. This double‐helical photocatalytic module was installed into a commercial UV sterilizer to structure a continuous‐flow device. The continuous‐flow device was effective in sterilizing bacteria and decomposing photodegradable organic pollutants in wastewater. Improving the performance of UV technology was proposed as a feasible approach for the practical application of photocatalysis.

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Section: Methodsmentioning

confidence: 99%

Fabrication of a double‐helical photocatalytic module for disinfection and antibiotics degradation

Wang

Zhang

et al. 2019

Water Environment Research

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“…5,6 Os processos oxidativos avançados (POA's), como a Reação de Fenton, são tratamentos em que são produzidos radicais livres, principalmente hidroxilas (•OH) altamente oxidantes, capazes de degradar, de forma não seletiva, inúmeros compostos levando à completa mineralização da matéria orgânica. [7][8][9][10][11][12] Na reação de Fenton a produção de radicais (•OH) ocorre a partir da decomposição do peróxido de hidrogênio catalisada por íons Fe(II) (equação 1), em meio ácido.…”

Section: Figura 1 Estrutura Molecular Do Corante íNdigo Carmimunclassified

Application of Fly Ash in Heterogeneous Fenton Reaction on the Degradation of Indigo Carmine Dye

et al. 2019

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Indigo carmine is a blue synthetic dye widely used in textile industry, as a food additive, in pharmaceutical industries, and as pH indicator. The use of this dye can leave to contamination of waste water and environment, damaging aquatic fauna and flora. An alternative for the treatment of water contaminated by dyes would be the degradation through oxidative processes. In this work, the indigo carmine degradation through a heterogeneous Fenton process using fly ash, an industrial waste, as Fe(II) source, was evaluated.. The dye final concentration was quantified by ultraviolet/visible light absorption spectroscopy. The optimal reaction conditions were determined using factorial design. The results showed that fly ash is able to remove approximately 42 % of the indigo carmine dye from solution without any pre-treatment.

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“…Among the family of transition metal dichalcogenides, molybdenum disulfide (MoS 2 ) has recently been broadly studied in many research fields such as: lubrication, supercapacitors, lithium-ion batteries and drug delivery, because of its extraordinary activity and its perfect two-dimensional structure. MoS 2 has also exhibited excellent performance in environmental remediation applications such as electroor photocatalysis, adsorption of heavy metals, ammonium nitrogen removal, and membrane-based separation (Kalin et al 2012;Lin et al 2015;Chang et al 2016;Wang and Mi 2017;Zhang et al 2017a;Fan et al 2019;Liu et al 2018a;Xing et al 2018;Sheng et al 2019;Zhou et al 2020).…”

Section: Introductionmentioning

confidence: 99%

MoS2-based nanocomposites: synthesis, structure, and applications in water remediation and energy storage: a review

et al. 2021

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The world is currently facing critical water and energy issues due to the growing population and industrialization, calling for methods to obtain potable water, e.g., by photocatalysis, and to convert solar energy into fuels such as chemical or electrical energy, then storing this energy. Energy storage has been recently improved by using electrochemical capacitors and ion batteries. Research is actually focusing on the synthesis of materials and hybrids displaying improved electronic, physiochemical, electrical, and optical properties. Here, we review molybdenum disulfide (MoS2) materials and hybrids with focus on synthesis, electronic structure and properties, calculations of state, bandgap and charge density profiles, and applications in energy storage and water remediation.

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Molybdenum sulfide Co-catalytic Fenton reaction for rapid and efficient inactivation of Escherichia coli

Cited by 222 publications

References 44 publications

Fabrication of a double‐helical photocatalytic module for disinfection and antibiotics degradation

Fabrication of a double‐helical photocatalytic module for disinfection and antibiotics degradation

Application of Fly Ash in Heterogeneous Fenton Reaction on the Degradation of Indigo Carmine Dye

MoS2-based nanocomposites: synthesis, structure, and applications in water remediation and energy storage: a review

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