N-type Cu2O Film for Photocatalytic and Photoelectrocatalytic Processes: Its stability and Inactivation of E. coli

Xiong, Lixia; Ng, Tsz Wai; Yu, Ying; Xia, Dehua; Yip, Ho Yin; Li, Guiying; An, Taicheng; Zhao, Huijun; Wong, Po Keung

doi:10.1016/j.electacta.2014.11.169

Cited by 31 publications

(4 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2015) reported the complete inactivation of 7 log of E. coli within 2 h using an n-type Cu 2 O film electrode. In this case, H 2 O 2 , injection of photo-generated h + and the inherent toxicity of the Cu 2 O film were found to be the main factors for pathogen’s inactivation ( Xiong et al., 2015 ).…”

Section: Indirect Oxidationmentioning

confidence: 95%

“…After 2 h of treatment, indirect complete pathogen oxidation was achieved by means of the photo-electrochemically produced H 2 O 2 and • O 2 − which were found the key reactive oxidative species for E. coli inactivation ( Zhang et al., 2020b ). In a related study, Xiong et al. (2015) reported the complete inactivation of 7 log of E. coli within 2 h using an n-type Cu 2 O film electrode.…”

Section: Indirect Oxidationmentioning

confidence: 98%

See 1 more Smart Citation

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

et al. 2021

View full text Add to dashboard Cite

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.

show abstract

Section: Indirect Oxidationmentioning

confidence: 95%

Section: Indirect Oxidationmentioning

confidence: 98%

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

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Coated fabrics with semi-conductor materials were shown able to produce ROS under light irradiation [231][232][233]. Textile coating with semiconductors such as TiO2, CuO and Cu2O and their association showed light absorption in the visible range by decreasing the TiO2 band gap [233][234][235] through intra-gap states or by lowering the photo-generated charge recombination through interfacial charge transfer (IFCT).…”

Section: Magnetron Sputtered Tio2-based Layers: Dcms Vs Hipimsmentioning

confidence: 99%

Titanium-based photocatalytic coatings for bacterial disinfection: The shift from suspended powders to catalytic interfaces

Hosseini

Assadi

Nguzen-Tri

et al. 2022

Surfaces and Interfaces

View full text Add to dashboard Cite

“…The photoelectrochemical degradation of p-nitrophenol on expanded graphite-diamond, tetracycline on n-ZnO/p-Cu 2 O/n-TNA ternary heterojunction electrode, rhodamine B on TiO 2 -coated ZnO : I nanorod array lms and BiFeO 3 /TiO 2 nanotube arrays as composite electrodes have been reported. 6,[9][10][11] Xiong et al 12 studied the photocatalytic and photoelectrochemical activities of n-type Cu 2 O lm for the stability and inactivation of E. coli.…”

mentioning

confidence: 99%

Photoelectrochemical degradation of orange II dye in wastewater at a silver–zinc oxide/reduced graphene oxide nanocomposite photoanode

et al. 2016

View full text Add to dashboard Cite

show abstract

N-type Cu2O Film for Photocatalytic and Photoelectrocatalytic Processes: Its stability and Inactivation of E. coli

Cited by 31 publications

References 43 publications

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

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

Titanium-based photocatalytic coatings for bacterial disinfection: The shift from suspended powders to catalytic interfaces

Photoelectrochemical degradation of orange II dye in wastewater at a silver–zinc oxide/reduced graphene oxide nanocomposite photoanode

Contact Info

Product

Resources

About