Photocatalytic degradation of tetracycline under visible light using TiO2@sulfur doped carbon nitride nanocomposite synthesized via in-situ method

Divakaran, Krishnan; Amanulla, Baishnisha; Balakumar, Vellaichamy; Perumal, Krishnan Nattamai; Meenakshi, C.; Kannan, R. Sayee

doi:10.1016/j.jece.2021.105560

Cited by 44 publications

(19 citation statements)

References 45 publications

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“…Several studies have investigated type (II) TiO 2 -based binary heterojunctions. TiO 2 @sulfur doped carbon nitride nanocomposite reported by Divakaran et al (Divakaran et al, 2021) and TiO 2 /SnNb 2 O 6 nanosheet reported by Jin et al (Jin et al, 2017) are examples of this type of binary heterojunctions. In type (II), the CB and VB of the first semiconductor (sulfur doped carbon nitride: SCN) are higher than the corresponding CB and VB of the second semiconductor (TiO 2 ) (Figure 6).…”

Section: Binary Tio 2 -Based Heterojunctionsmentioning

confidence: 91%

“…The water turbidity also affects photocatalysis efficiency. For example, high water turbidity in the treated stream can reduce light transmission through the water into the catalyst's surface, thereby reducing light absorption by the catalyst and subsequent electron activation (Teoh et al, 2012;Divakaran et al, 2021). The presence of salts and other organic pollutants in the water may affect AB adsorption onto the catalyst surface, and can increase water turbidity.…”

Section: Processmentioning

confidence: 99%

“…Further modification of Titania is urgently needed to achieve practical, visible light-induced photocatalytic applications. Many studies have been reported in the literature to enhance Titania properties through modification and/or combination with organic and/or inorganic counterparts (Wang et al, 2011;Pouretedal and Afshari, 2016;Zhang F. J. et al, 2017;Chen and Liu, 2017;Jin et al, 2017;Duan et al, 2018;He et al, 2018;Tang et al, 2018;Zheng et al, 2018;Liu M. et al, 2019;Farhadian et al, 2019;Galedari et al, 2019;Sun et al, 2019;Akel et al, 2020;Ghoreishian et al, 2020;Liu et al, 2020;Divakaran et al, 2021;Ghoreishian et al, 2021). The following section presents a detailed summary of various methods reported in the literature to achieve visible light sensitization of Titania and its applications for tetracyclines photodegradation.…”

Section: Tio 2 -Based Photocatalysts For Tetracyclines Degradationmentioning

confidence: 99%

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Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Jalloul

Keniar

Tehrani

et al. 2021

Front. Environ. Sci.

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Sub-therapeutic levels of antibiotics (ABs) are given to animals and poultry to promote growth and reduce disease. In agricultural environments, ABs reach croplands via animal manure used as fertilizer and/or ABs-contaminated water used for irrigation. The continuous discharge of ABs into the ecosystem raises growing concerns on the ABs contamination of edible crops. Tetracyclines (TCs) are among the most widely used ABs around the world. In this review, we discuss the contamination of irrigation water with TCs, its impact on edible crops, and the potential risks of crop contamination with TCs on human health. We propose solar-mediated photocatalytic degradation using Titania (TiO2) photocatalyst as a promising method to remove TCs from irrigation water. The photocatalytic activity of TiO2 can be enhanced by chemical modification to expand its activity under visible light irradiation. Herein, we aim for providing literature-based guidance on developing a visible light–active TiO2-based system to degrade TCs and other ABs in water streams. We include a summary of recent advances on this topic based on three main modification methods of Titania: metal/non-metal/mixed doping, composite formation, and heterojunction construction. Among the investigated photocatalysts, Fe2O3-TiO2/Fe-zeolite and the N-doped TiO2/rGO immobilized composite catalysts were found to be very efficient in the degradation of TCs under visible light irradiation (i.e., 98% degradation within 60 min). Most immobilized TiO2 based composite systems exhibited improved performances and hence we highlight these as efficient, cost effective and ecofriendly photocatalysts for the degradation of TCs in irrigation water.

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Section: Binary Tio 2 -Based Heterojunctionsmentioning

confidence: 91%

Section: Processmentioning

confidence: 99%

Section: Tio 2 -Based Photocatalysts For Tetracyclines Degradationmentioning

confidence: 99%

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Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Jalloul

Keniar

Tehrani

et al. 2021

Front. Environ. Sci.

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“…However, the wide band gap of TiO 2 (3.2 eV for anatase) makes it only absorb the ultraviolet (UV) region in sunlight, which limits its application in photocatalysis. , Moreover, the fast recombination of photoexcited electron–hole pairs restricts the improvement of its photocatalytic performance. To overcome the above drawbacks, various strategies have been adopted for the construction of TiO 2 -based composites to narrow the band gap and promote the charge separation, such as metal (Ag, Au, Pt, or Pd) or nonmetal (N, S, or C) doping, − assembling the heterojunctions with other semiconductors (CdS, Ag 2 O, Cu 2 O, Bi 2 O 3 , ZnMn 2 O 4 , FeTiO 3 , LaVO 4 ) , and carbon-supported oxides (carbon black, carbon nanotubes (NTs), graphite, or graphene). − …”

Section: Introductionmentioning

confidence: 99%

Interface Modification of TiO₂ Nanotubes by Biomass-Derived Carbon Quantum Dots for Enhanced Photocatalytic Reduction of CO₂

Zhang

Jin

Tao

2021

ACS Appl. Energy Mater.

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As a greenhouse gas, the efficient conversion of carbon dioxide (CO2) into fuel by the photocatalytic technology is one of the feasible ways to promote sustainable energy development and achieve global energy demand. In this work, with special optical absorption and fluorescence emissions, biomass-derived carbon quantum dots (CQDs) are used to modify TiO2 nanotubes (NTs) for the enhancement of photocatalytic CO2 reduction. Monodisperse CQDs have a diameter of 2–5 nm and are loaded on TiO2 NTs, which are confirmed by various characterizations. Compared with TiO2 NTs, the as-prepared CQD-modified TiO2 NTs exhibit the significantly enhanced photocatalytic properties of CO2 reduction under irradiation. And the composite photocatalyst obtained by the combination of 10 mL of CQD solution with TiO2 NTs exhibits the highest CO2 photoreduction with the CO and CH4 yields of 13.55 and 3.54 μmol·g–1, which are 2.4 and 2.5 times that of TiO2 NTs, respectively. The higher CO2 photoreduction is ascribed to the introduction of CQDs into TiO2 NTs. Moreover, biomass-derived CQD-modified TiO2 NTs exhibit satisfactory stability for CO2 reduction. The encouraging photocatalytic performance for CO2 conversion exhibits that TiO2-based composites modified by carbon materials provide a feasible route to improve CO2 reduction utilizing abundant solar energy.

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“…The following supporting information can be downloaded at: . References [ 47 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ] are cited in the supplementary materials.…”

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confidence: 99%

Efficient Adsorption-Photocatalytic Removal of Tetracycline Hydrochloride over Octahedral MnS

Guo

Liu

Peng

et al. 2022

IJMS

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To disclose the effect of crystal plane on the adsorption-photocatalytic activity of MnS, octahedral MnS was prepared via the hydrothermal route to enhance the adsorption and photocatalytic efficiencies of tetracycline hydrochloride (TCH) in visible light region. The optimal MnS treated at 433 K for 16 h could remove 94.83% TCH solution of 260 mg L−1 within 180 min, and its adsorption-photocatalytic efficiency declined to 89.68% after five cycles. Its excellent adsorption-photocatalytic activity and durability were ascribed to the sufficient vacant sites of octahedral structure for TCH adsorption and the feasible band-gap structure for visible-light response. In addition, the band gap structure (1.37 eV) of MnS with a conduction band value of −0.58 eV and a valence band value of 0.79 eV was favorable for the generation of O2−, while unsuitable for the formation of OH. Hence, octahedral MnS was a potential material for the removal of antibiotics from wastewater.

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Photocatalytic degradation of tetracycline under visible light using TiO2@sulfur doped carbon nitride nanocomposite synthesized via in-situ method

Cited by 44 publications

References 45 publications

Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Interface Modification of TiO₂ Nanotubes by Biomass-Derived Carbon Quantum Dots for Enhanced Photocatalytic Reduction of CO₂

Efficient Adsorption-Photocatalytic Removal of Tetracycline Hydrochloride over Octahedral MnS

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Photocatalytic degradation of tetracycline under visible light using TiO2@sulfur doped carbon nitride nanocomposite synthesized via in-situ method

Cited by 44 publications

References 45 publications

Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Antibiotics Contaminated Irrigation Water: An Overview on Its Impact on Edible Crops and Visible Light Active Titania as Potential Photocatalysts for Irrigation Water Treatment

Interface Modification of TiO2 Nanotubes by Biomass-Derived Carbon Quantum Dots for Enhanced Photocatalytic Reduction of CO2

Efficient Adsorption-Photocatalytic Removal of Tetracycline Hydrochloride over Octahedral MnS

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Interface Modification of TiO₂ Nanotubes by Biomass-Derived Carbon Quantum Dots for Enhanced Photocatalytic Reduction of CO₂