Intimate coupling of an N-doped TiO2 photocatalyst and anode respiring bacteria for enhancing 4-chlorophenol degradation and current generation

Zhou, Dandan; Dong, Shuangshi; Shi, Junlong; Cui, Xiaochun; Ki, Dongwon; Torres, César I.; Rittmann, Bruce E.

doi:10.1016/j.cej.2017.02.128

Cited by 80 publications

(30 citation statements)

References 48 publications

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“…TiO 2 , as a common semiconductor, has been developed for several decades. TiO 2 nanomaterials are widely used in the photocatalytic field, because of their good catalytic activity [ 26 , 27 , 28 ]. Recently, the electrocatalytic activity of TiO 2 has also been reported.…”

Section: Introductionmentioning

confidence: 99%

Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes

Liu

et al. 2018

Sensors

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TiO2-reduced graphene oxide composite-modified glassy carbon electrodes (TiO2–ErGO–GCE) for the sensitive detection of tartrazine were prepared by drop casting followed by electrochemical reduction. The as-prepared material was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Cyclic voltammetry and second-order derivative linear scan voltammetry were performed to analyze the electrochemical sensing of tartrazine on different electrodes. The determination conditions (including pH, accumulation potential, and accumulation time) were optimized systematically. The results showed that the TiO2–ErGO composites increased the electrochemical active area of the electrode and enhanced the electrochemical responses to tartrazine significantly. Under the optimum detection conditions, the peak current was found to be linear for tartrazine concentrations in the range of 2.0 × 10−8–2.0 × 10−5 mol/L, with a lower detection limit of 8.0 × 10−9 mol/L (S/N = 3). Finally, the proposed TiO2–ErGO–GCEs were successfully applied for the detection of trace tartrazine in carbonated beverage samples.

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Section: Introductionmentioning

confidence: 99%

Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes

Liu

et al. 2018

Sensors

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“…Based on this knowledge, various proof-of-concept studies have been advocated and their findings demonstrate increasing promise for successful application in several environmental uses, such as decoloration, methane production and organic pollutant degradation (Table 2). Inspired by the abovementioned observations, a novel methodology was developed using nitrogen doping or in conjunction with a multilayered metal-organic framework (MOF) to construct new ICP-MR systems (Table 2) [ [134][135][136]. With the aid of these new modifications, ICP-MR performance is expected to greatly improve making this technology more highly efficient and cost-effective.…”

Section: Mineral Photoelectrons Participate In Microbial Extracellulamentioning

confidence: 99%

Recent advances in the roles of minerals for enhanced microbial extracellular electron transfer

Dong

Chen

Yan

et al. 2020

Renewable and Sustainable Energy Reviews

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Minerals are ubiquitous in the natural environment and have close contact with microorganisms. In various scenarios, microorganisms that harbor extracellular electron transfer (EET) capabilities have evolved a series of beneficial strategies through the mutual exchange of electrons with extracellular minerals to enhance survival and metabolism. These electron exchange interactions are highly relevant to the cycling of elements in the epigeosphere and have a profound significance in bioelectrochemical engineering applications. In this review, we summarize recent advances related to the effects of different minerals that facilitate the EET process and discuss the underlying mechanisms and outlooks for future applications. The promotional effects of minerals arise from their redox-active ability, electrical conductivity and photocatalytic capability. In mineral-promoted EET processes, various responses have concurrently arisen in microorganisms, such as stretching of electrically conductive pili (e-pili), upregulated expression of outer-membrane cytochromes (Cyts) and production of specific enzymes, and secretion of extracellular polymeric substances (EPSs). This review synthesizes the understanding of electron exchange mechanisms between microorganisms and minerals and highlights potential applications in development of renewable energy production and pollutant remediation, which are topics of particular significance to future exploitation of biotechnology.

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“…Hence, if photocatalysis and microbial degradation are intimately coupled, sequential treatment processes can be designed and optimized for specific applications. These coupled processes overcome many of the inefficiencies associated with sequential independent processes to realize enhanced reaction efficacy, particularly by eliminating the uncertainty of photocatalysis intermediates (Xiong et al, 2017;Zhou et al, 2017). Thus, a comprehensive review of the mechanisms involved in electron transfer of hybrid microbial-photoelectrochemical processes is important and timely for providing theoretical guidance to advance future research and development of emerging bioelectrochemical engineering technologies.…”

Section: Introductionmentioning

confidence: 99%

Cadmium sulfide nanoparticles-assisted intimate coupling of microbial and photoelectrochemical processes: Mechanisms and environmental applications

Dong

Wang

Yan

et al. 2020

Science of The Total Environment

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Intimate coupling of an N-doped TiO2 photocatalyst and anode respiring bacteria for enhancing 4-chlorophenol degradation and current generation

Cited by 80 publications

References 48 publications

Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes

Sensitive and Selective Detection of Tartrazine Based on TiO2-Electrochemically Reduced Graphene Oxide Composite-Modified Electrodes

Recent advances in the roles of minerals for enhanced microbial extracellular electron transfer

Cadmium sulfide nanoparticles-assisted intimate coupling of microbial and photoelectrochemical processes: Mechanisms and environmental applications

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