Highly-efficient photocatalytic disinfection of Escherichia coli under visible light using carbon supported Vanadium Tetrasulfide nanocomposites

Zhang, Baogang; Zou, Shiqiang; Cai, Ruquan; Li, Min; He, Zhen

doi:10.1016/j.apcatb.2017.10.065

Cited by 94 publications

(31 citation statements)

References 51 publications

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“…Thus, efficient water disinfection against pathogenic bacteria becomes the top priority around the world to address drinking water safety issues. UP to now, the most widely used drinking water disinfection methods in drinking water treatment plants are chlorination, ozonation, and UV irradiation, and show high efficiency for pathogens inactivation, thereby resulting in the diminishing outbreaks of waterborne disease . However, chlorine and chlorine‐based chlorination method usually leads to the formation of the harmful disinfection byproducts, which shows mutagenic and carcinogenic potential for human beings .…”

Section: Photocatalysis Applicationsmentioning

confidence: 99%

Black Phosphorus, a Rising Star 2D Nanomaterial in the Post‐Graphene Era: Synthesis, Properties, Modifications, and Photocatalysis Applications

Lai

Zeng

et al. 2019

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275

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Semiconductor photocatalysis, a sustainable and renewable technology, is deemed to be a new path to resolve environmental pollution and energy shortage. The development of effective photocatalysts, especially the metal‐free photocatalysts, is a critical determinant of this technique. The recently emerged 2D material of black phosphorus with distinctive properties of tunable direct bandgap, ultrahigh charge mobility, fortified optical absorption, large specific surface area, and anisotropic structure has captured enormous attention since the first exfoliation of bulk black phosphorus into mono‐ or few layered phosphorene in 2014. In this article, the state‐of‐the‐art preparation methods are first summarized for bulk black phosphorus, phosphorene, and black phosphorus quantum dot and then the fundamental structure and electronic and optical properties are analyzed to evaluate its feasibility as a metal‐free photocatalyst. Various modifications on black phosphorus are also summarized to enhance its photocatalytic performance. Furthermore, the multifarious applications such as solar to energy conversion, organic removal, disinfection, nitrogen fixation, and photodynamic therapy are discussed and some of the future challenges and opportunities for black phosphorus research are proposed. This review reveals that the rising star of black phosphorus will be a multifunctional material in the postgraphene era.

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Section: Photocatalysis Applicationsmentioning

confidence: 99%

Black Phosphorus, a Rising Star 2D Nanomaterial in the Post‐Graphene Era: Synthesis, Properties, Modifications, and Photocatalysis Applications

Lai

Zeng

et al. 2019

Small

275

169

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“…Comparative evaluation of the performance of dissolved organic carbon sources shows that acetate supports highly efficient V(V) bio‐reduction (Liu et al, ). Oxidation of gaseous and solid electron donors, such as hydrogen and elemental sulfur (Jiang et al, ; Zhang, Zhou, et al, ; Zhang, Qui, et al, ), can also be coupled to V(V) bio‐reduction without residual organics. Furthermore, coexisting common electron acceptors in groundwater, such as nitrate and sulfate, can decrease the efficiency of V(V) bio‐reduction since they are more efficient electron acceptors (Liu et al, ).…”

Section: Introductionmentioning

confidence: 99%

Microbial Community Responses to Vanadium Distributions in Mining Geological Environments and Bioremediation Assessment

et al. 2019

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Vanadium mining activities can cause contamination of the surrounding geological environment. Vanadium may exist in multiple matrices due to its migration and transformation, forming interactive relationships; however, the connection between vanadium distributions in multiple matrices and microbial community responses remains largely unknown. Vanadium is a redox‐sensitive metal that can be microbiologically reduced and immobilized. To date, bioremediation of vanadium‐contaminated environments by indigenous microorganisms has rarely been evaluated. This paper reports a systematic investigation into vanadium distributions and microbial communities in soils, water, and sediment from Panzhihua, China. Large vanadium contents of 1130.1 ± 9.8 mg/kg and 0.13 ± 0.02 mg/L were found in surface soil and groundwater. Vanadium in surface water tended to precipitate. Microbial communities isolated from similar environments were alike due to similarity in matrix chemistry whereas communities were distinct when compared to different matrices, with lower richness and diversity in groundwater. Proteobacteria was distributed widely and dominated microbial communities within groundwater. Redundancy analysis shows that vanadium and nutrients significantly affected metal‐tolerant bacteria. Long‐term cultivation (240 days) suggests the possibility of vanadium bioremediation by indigenous microorganisms, within acid‐soluble fraction. This active fraction can potentially release mobile vanadium with shifted redox conditions. Vanadium (V) was bio‐reduced to less toxic, mobile vanadium (IV) primarily by enriched Bacillus and Thauera. This study reveals the biogeochemical fate of vanadium in regional geological environments and suggests a bioremediation pathway via native vanadium‐reducing microbes.

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“…Besides MoS 2 , many 2D TMD materials are also active in photocatalysis . CdS and VS 4 have been anchored on graphene layers to achieve promoted photocatalytic disinfection. However, a further morphology control is preferable for those composites in order to exert the merits of 2D structures.…”

Section: Transition Metal Dichalcogenides For Photocatalytic Bacteriamentioning

confidence: 99%

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

Liu

Zeng

et al. 2018

J of Chemical Tech & Biotech

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Photocatalysis has received ever‐growing attention as a promising alternative to traditional water treatment technologies for waterborne biohazard inactivation. Due to unique optical, electronic, physicochemical properties and feasibility of functional architecture assembly, two‐dimensional (2D) nanomaterials have become important in developing novel photocatalysts. This review summarizes the recent progress in configuring nanostructures with 2D materials as building blocks for photocatalytic water disinfection. In this review, five categories of 2D nanomaterials, that is, graphene, graphitic carbon nitride, 2D metal oxides and metallates, metal oxyhalides and transition metal dichalcogenides, for photocatalytic pathogen inactivation are introduced. First, the synthesis process, nanostructure engineering and disinfection performance of 2D‐based photocatalysts are reviewed in categories. In the following section, the bacteria destruction mechanism based on the generation and roles of reactive species (RSs) is presented. Moreover, the effects of the chemical characteristics of the water matrix on photocatalytic bactericidal performance are discussed. Finally, the challenges regarding the development and application of 2D‐based photocatalysts for highly efficient water sterilization are highlighted. © 2018 Society of Chemical Industry

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Highly-efficient photocatalytic disinfection of Escherichia coli under visible light using carbon supported Vanadium Tetrasulfide nanocomposites

Cited by 94 publications

References 51 publications

Black Phosphorus, a Rising Star 2D Nanomaterial in the Post‐Graphene Era: Synthesis, Properties, Modifications, and Photocatalysis Applications

Black Phosphorus, a Rising Star 2D Nanomaterial in the Post‐Graphene Era: Synthesis, Properties, Modifications, and Photocatalysis Applications

Microbial Community Responses to Vanadium Distributions in Mining Geological Environments and Bioremediation Assessment

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

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