Adenovirus inactivation by in situ photocatalytically and photoelectrocatalytically generated halogen viricides

Li, Guiying; Liu, Xiaolu; Zhang, Haimin; Wong, Po Keung; An, Taicheng; Zhou, Wenqu; Li, Bing; Zhao, Huijun

doi:10.1016/j.cej.2014.05.059

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…In addition, since the catalyst is immobilized on the conductive substrate in the PEC, there is no challenge of catalyst recovery after treatment in the photocatalytic device . As such, PEC can effectively degrade organic pollutants and inactivate biohazards like bacteria and viruses. − …”

Section: Advances In Water Disinfection Technologies In Removing Arb ...mentioning

confidence: 85%

Traditional and Emerging Water Disinfection Technologies Challenging the Control of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes

Cai

Sun

et al. 2021

ACS EST Eng.

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The emergence of antibiotic-resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in the environment has created obstacles when treating infectious diseases with antibiotics. Wastewater treatment plants (WWTPs) serve as reservoirs for ARB and ARGs and can disseminate them into the environment. It is important to understand and address these risks. Generally, professional disinfection processes have been used in WWTPs to disinfect the target water body, with the goal of eliminating pathogenic microorganisms in the water. However, ARGs are not generally considered, and antibiotic resistance has spread and developed through horizontal gene transfer (HGT). This Review provides a detailed overview of the application progress of different traditional and new disinfection technologies in removing ARB and ARGs, mainly focusing on the bacterial inactivation mechanisms of chlorination, ozonation, ultraviolet (UV) (including UVA, UVB, and UVC), sunlight, sunlight-dissolved organic matter (DOM), and photocatalysis (PC)/photoelectrocatalysis (PEC). In addition, this Review also focuses on the disinfection technology involved in the transfer of ARGs and clarifies the underlying transfer mechanisms in water environments. Furthermore, by linking the mechanisms of bacterial inactivation, the Review describes how SOS response and cell membrane permeability may be the key step in the conjugation, transformation, and transduction of ARGs. Finally, given the applications and current problems associated with traditional water disinfection technologies and light-based disinfection technologies in removing and controlling ARB and ARGs, this Review describes the current challenges and opportunities to facilitate the development of future disinfection technologies. The Review also highlights future research directions related to ARG transmission control.

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Section: Advances In Water Disinfection Technologies In Removing Arb ...mentioning

confidence: 85%

Traditional and Emerging Water Disinfection Technologies Challenging the Control of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes

Cai

Sun

et al. 2021

ACS EST Eng.

Self Cite

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“…Photoelectrocatalytical (PEC) reactors perform the photocatalytic reactions enhancing the viral inactivation significantly (>90%) by applying a negative potential lead to damage of the virus due to the manifested electrostatic attraction between negatively charged viral capsid and catalyst surface [208] , [215] . The virucidal activity in the presence of low concentrations of halides with reference to adenovirus inactivation by PEC systems showed positive influence by halide oxidation with a prolonged lifetime of photoholes (h + ) [216] .…”

Section: Inactivation Of Virusmentioning

confidence: 99%

SARS-CoV-2 in environmental perspective: Occurrence, persistence, surveillance, inactivation and challenges

Mohan

Hemalatha

Kopperi

et al. 2021

Chemical Engineering Journal

121

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“…The PEC treatment of virus contaminated solutions in the presence of 1.0 mM Br, shows a high virucidal efficiency, enabling complete inactivation of a ∼1000 median tissue culture infectious dose of adenovirus population within 31.7 s. The highly efficient virucidal performance of PEC-Br treatments has been attributed to the high production of ROS and additional halogen viricide chemicals such as active bromide resulting from the PEC indirect-halide oxidation, as well as the direct inactivation at the photo-anode surface ( Li et al., 2014 ).…”

Section: Indirect Oxidationmentioning

confidence: 99%

“…In the context of a fast-changing understanding of the COVID-19 disease and the SARS-CoV-2 virus, it is essential to develop effective water disinfection processes that guarantee the complete inactivation of the virus. Since photo-assisted EAOPs have been successfully demonstrated as affective alternative for the inactivation of a variety viruses ( Li et al., 2014 ), such processes stand out as a potentially important approach for the treatment of SARS-CoV-2 contaminated wastewater.…”

Section: Future Trends and Perspectivesmentioning

confidence: 99%

“…It is important to point out that some antibiotic resistant bacteria survive after UV disinfection ( Guo and Kong, 2019 ) and some other bacteria revive in the darkness after UV treatment ( Chen et al., 2020 ). Furthermore, a number of pathogens, particularly some virus species, are naturally resistant to traditional treatments such as UV and chlorination ( Li et al., 2014 ).…”

Section: Introductionmentioning

confidence: 99%

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Photo-assisted electrochemical advanced oxidation processes for the disinfection of aqueous solutions: A review

et al. 2021

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Disinfection is usually the final step in water treatment and its effectiveness is of paramount importance in ensuring public health. Chlorination, ultraviolet (UV) irradiation and ozone (O 3 ) are currently the most common methods for water disinfection; however, the generation of toxic by-products and the non-remnant effect of UV and O 3 still constitute major drawbacks. Photo-assisted electrochemical advanced oxidation processes (EAOPs) on the other hand, appear as a potentially effective option for water disinfection. In these processes, the synergism between electrochemically produced active species and photo-generated radicals, improve their performance when compared with the corresponding separate processes and with other physical or chemical approaches. In photo-assisted EAOPs the inactivation of pathogens takes place by means of mechanisms that occur at different distances from the anode, that is: (i) directly at the electrode’s surface (direct oxidation), (ii) at the anode’s vicinity by means of electrochemically generated hydroxyl radical species (quasi-direct), (iii) or at the bulk solution (away from the electrode surface) by photo-electrogenerated active species (indirect oxidation). This review addresses state of the art reports concerning the inactivation of pathogens in water by means of photo-assisted EAOPs such as photo-electrocatalytic process, photo-assisted electrochemical oxidation, photo-electrocoagulation and cathodic processes. By focusing on the oxidation mechanism, it was found that while quasi-direct oxidation is the preponderant inactivation mechanism, the photo-electrocatalytic process using semiconductor materials is the most studied method as revealed by numerous reports in the literature. Advantages, disadvantages, trends and perspectives for water disinfection in photo-assisted EAOPs are also analyzed in this work.

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Adenovirus inactivation by in situ photocatalytically and photoelectrocatalytically generated halogen viricides

Cited by 18 publications

References 39 publications

Traditional and Emerging Water Disinfection Technologies Challenging the Control of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes

Traditional and Emerging Water Disinfection Technologies Challenging the Control of Antibiotic-Resistant Bacteria and Antibiotic Resistance Genes

SARS-CoV-2 in environmental perspective: Occurrence, persistence, surveillance, inactivation and challenges

Photo-assisted electrochemical advanced oxidation processes for the disinfection of aqueous solutions: A review

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