Photocatalytic ozonation of offshore produced water by TiO2 nanotube arrays coupled with UV-LED irradiation

Liu, Bo; Chen, Bing; Zhang, Baiyu; Song, Xing; Zeng, Guoxun; Lee, Kenneth

doi:10.1016/j.jhazmat.2020.123456

Cited by 57 publications

(20 citation statements)

References 63 publications

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“…As reported previously [ 47 , 48 ], the highly reactive hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ) formed in the photocatalytic process are desirable for degrading PAHs into less toxic products. Thus, the samples were saturated with air to supply the source H 2 O and O 2 needed to accelerate the generation of hydroxyl and superoxide radicals.…”

Section: Resultsmentioning

confidence: 98%

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

et al. 2021

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Polycyclic aromatic hydrocarbons (PAHs) in tobacco tar are regarded as a significant threat to human health. PAHs are formed due to the incomplete combustion of organics in tobacco and cigarette paper. Herein, for the first time, we extended the application of CsPbBr3 quantum dots (CsPbBr3) to the photocatalytic degradation of tobacco tar, which was collected from used cigarette filters. To optimize the photoactivity, CsPbBr3 was coupled with Bi2WO6 for the construction of a type-II photocatalyst. The photocatalytic performance of the CsPbBr3/Bi2WO6 composite was evaluated by the degradation rate of PAHs from tobacco tar under simulated solar irradiation. The results revealed that CsPbBr3/Bi2WO6 possesses a large specific surface area, outstanding absorption ability, good light absorption and rapid charge separation. As a result, in addition to good stability, the composite photocatalyst performed remarkably well in degrading PAHs (over 96% were removed in 50 mins of irradiation by AM 1.5 G). This study sheds light on promising novel applications of halide perovskite.

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Section: Resultsmentioning

confidence: 98%

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

et al. 2021

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“…A maioria dos AOPs são baseados na formação seletiva do radical hidroxilo (HO • ) que é conhecido pelo seu elevado poder oxidante (potencial de redução padrão entre 2,8 e 2,0 V a pH 0 e 14, respetivamente [29]) e pela sua capacidade de oxidar não-seletivamente uma série de compostos orgânicos que costumam ser recalcitrantes em tratamentos físico-químicos e biológicos [30]. Os AOPs mostraram-se bastante eficientes para tratar uma variedade de efluentes, incluindo águas oleosas [31][32][33][34][35], e permitem abordagens para a recuperação da fase oleosa [3,[36][37][38].…”

Section: Processos Avançados De Oxidação (Aops)unclassified

Águas Oleosas Contaminadas: Ameaças, Tratamentos e Desafios

Faria¹,

Gomes²,

Silva³

et al. 2021

BSPQuimica

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“…However, chlorination has been shown to produce carcinogenic disinfection byproducts (DBPs) [8,9], and filtration and UV radiation is costly and can be quite time-consuming [10]. Recently, advances in nanomaterials have triggered large interest in specifically designed components and structures for water treatment with high efficiency and low cost, especially aiming at their applications in marine environments [11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Magnetically Recoverable and Reusable Titanium Dioxide Nanocomposite for Water Disinfection

Keeley

Kisslinger

Adamson

et al. 2021

JMSE

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A bifunctional magnetic Fe3O4@SiO2@TiO2 or MS-TiO2 antimicrobial nanocomposite was prepared based on simple sol-gel methods with common equipment and chemicals. Reaction pH was found to influence the TiO2 upload in the nanocomposite. The alkaline condition produced the greatest TiO2 upload, while the acidic condition the least. Annealing at 300 °C turned the as-synthesized amorphous TiO2 into one with high content of anatase, the most photoactive form of TiO2. Irradiated by 365 nm UV light, a sample of 30 mg/mL of annealed nanocomposite containing 12.6 wt.% Ti was shown to be able to completely eradicate 104 CFU/mL of the laboratory-grown E. coli within 25 min, 25 min faster than the control when the 365 nm UV light was employed alone. The nanocomposite demonstrated consistent antimicrobial performance over repeated uses and was easily recoverable magnetically due to its high magnetization value (33 emu/g). Additionally, it was shown to reduce the bacterial count in a real surface water sample containing 500–5000 CFU/mL of different microbes by 62 ± 3% within 30 min. The irradiating 365 nm UV light alone was found to have generated little biocidal effect on this surface water sample. The nanocomposite is promising to serve as an effective, safe, and eco-friendly antimicrobial agent, especially for surface water disinfection.

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Photocatalytic ozonation of offshore produced water by TiO2 nanotube arrays coupled with UV-LED irradiation

Cited by 57 publications

References 63 publications

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Photocatalytic Degradation of Tobacco Tar Using CsPbBr3 Quantum Dots Modified Bi2WO6 Composite Photocatalyst

Águas Oleosas Contaminadas: Ameaças, Tratamentos e Desafios

Magnetically Recoverable and Reusable Titanium Dioxide Nanocomposite for Water Disinfection

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