Improved photodegradation of p-nitrophenol from water media using ternary MgFe2O4-doped TiO2/reduced graphene oxide

Thinh, Doan Ba; Tien, Nguyen Tan; Dat, Nguyen Minh; Phong, Ha Huu Tan; Giang, Nguyễn Thị Hương; Tai, Le Tan; Oanh, Đoàn Thị Yến; Nam, Hoàng Minh; Phong, Mai Thanh; Hieu, Nguyen Huu

doi:10.1016/j.synthmet.2020.116583

Cited by 24 publications

(20 citation statements)

References 42 publications

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“…The 2θ value of 25, 37.8, 48.1, 54.4, 62.5, and 69 o responds to the crystallographic planes of (1 0 1), (0 0 4), (2 0 0), (1 0 5), (2 0 4), and (2 2 0), respectively, which expressed the TiO2 anatase phase (JCPDS no.21-1272) holding up the samples. [12,13] The XRD data indicated the anchoring of the TiO2 crystalline particles onto rGO sheets in the binary composite structure. Raman spectra of rGO and TiO2/rGO materials were shown in figure 1c.…”

Section: Characterization Of Nanocompositesmentioning

confidence: 99%

“…The grafting of TiO2 in TiO2/rGO shown no considerable change in the D and G band and the enhanced intensity due to the presence of the dopants represents the impressive photocatalytic properties of the nanocomposite. [13] Furthermore, the internal vibration of the TiO2 anatase structure was indicated by a strong signal identified at 164 cm -1 . [15] Regarding table 1, the increase in ID/IG ratio is related to the higher defect in the nanocomposite, as the formation of TiO2 has restricted the sp 2 domains in pristine GO structure.…”

Section: Characterization Of Nanocompositesmentioning

confidence: 99%

“…Eventually, these radicals completely oxidize the MB adsorbed on the nanocomposite to mineralization compounds. [7,13] The whole reaction series were reported as: The radicals such as •OH and •O2 − strong electrophilic properties could easily replace the methyl groups substituent on the amine groups, followed by attacking with cationic sulfur group and heteroaromatic rings nearby to form to sulfonate and amine intermediate products. Indeed, the interaction of them with radicals results in cleaving the benzene ring and carbon chain and then, mineralizing to CO2, H2O, and inorganic anions like NO3 − and SO4 2− .…”

Section: Adsorption and Photodegradation Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Trinh

Viet

Nhu

et al. 2021

Vietnam Journal of Chemistry

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Herein, TiO2/reduced graphene oxide (TiO2/rGO) nanocomposites were fabricated using the hydrothermal method and investigated with the amount of titanium precursors. The binary nanocomposites were characterized by modern analysis method. The adsorption capacity and photocatalyst degradation were performed based on methylene blue. The appropriate as‐prepared material with 1.5 mL TIP contained a large specific surface area (110.549 m2/g) with TiO2 ranging 4‐25 nm homogenously grafting on the rGO surface. The adsorption results were shown in good accordance with the pseudo‐second‐order while the photoreaction kinetics pursued the pseudo‐first‐order with a high‐rate constant. After the adsorption state, the yield reaches 62.1 % and under UV light for 90 min, 96.8 % of MB was efficiently degraded from water media, which showed a more impressive effect as compared with P25 and rGO. Therefore, the use of TiO2/rGO could be applied in the mass‐scale treatment of organic pollutants in wastewater.

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Section: Characterization Of Nanocompositesmentioning

confidence: 99%

Section: Characterization Of Nanocompositesmentioning

confidence: 99%

Section: Adsorption and Photodegradation Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Trinh

Viet

Nhu

et al. 2021

Vietnam Journal of Chemistry

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“…Ibrahim et al (2019) studied a photocatalytic process in the presence of a titanium dioxide (TiO 2 ) ferrite nanotube to treat 10 mg L-1 of PNF, obtaining 100% photocatalytic reduction of contaminant in a maximum time of 55 minutes. Thinh et al (2020), after 50 minutes of photocatalytic treatment, reached a maximum yield of 94% when treating 20 mg L-1 of PNF.…”

Section: Optimization Of Pnf Degradationmentioning

confidence: 99%

Optimization of parameters applied to degradation and mineralization of p-nitrophenol using advanced oxidative processes

Santolin

Tochetto

Dervanoski

et al. 2021

Preprint

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Advanced oxidative processes are widely used in the degradation of organic compounds. The degradation and mineralization of the PNF was evaluated by means of an experimental factorial design, using photolysis (UV) and photo-peroxidation (UV/H2O2). With the results optimized, degradation kinetics was performed and the experimental data adjusted to mathematical models. In the UV system, it was possible to degrade just over 65% and mineralize 15% over 7 h of reaction; however, with the addition of the oxidizing agent H2O2, it was possible to obtain 100% removal of the contaminant, suggesting that there was no formation of intermediate compounds. Kinetics results fitting the first order model and the velocity constants revealed that degradation is extremely faster in the UV/H2O2 system (k1,UV/H2O2 = 0.0580 min− 1 > k1,UV = 0.0018 min− 1).

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“…(a) Adsorption mechanism of 4-NP over MFO-TiO 2 /r-GO. Reproduced with permission from ref . Copyright 2020 Elsevier Ltd. (b) Schematic illustration for the multilayer adsorption of nitroaromatics.…”

Section: Ferrite Based Nanostructures For the Removal Of Nitroaromaticsmentioning

confidence: 99%

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

Bhaduri

Dikshit

Kim

et al. 2022

ACS Appl. Nano Mater.

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Spinel ferrite nanostructures have played significant roles in the development of materials science and technology. Spinel ferrite nanostructures possess not only promising magnetic properties but also high resistivity, stability, and low eddy current losses. The recent progress in the utilization of spinel ferrite nanostructures for water remediation is reviewed with special emphasis on the adsorption, transformation, degradation, and catalytic reduction of nitroaromatics. Then, the structure–property relationships and design considerations of spinel ferrite nanostructures for catalytic applications are discussed in detail. Insights into the details of the various removal processes on the model spinel ferrite nanostructures are provided with a basic concept of nitroaromatics remediation. Subsequently, reaction kinetics and mechanisms are classified and their advantages and disadvantages are described. Lastly, challenges and future perspectives of spinel ferrite nanostructures for their practical applications are presented. With further advancement, spinel ferrites have potential to be practically utilized for a wide range of applications such as water treatment plants.

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Improved photodegradation of p-nitrophenol from water media using ternary MgFe2O4-doped TiO2/reduced graphene oxide

Cited by 24 publications

References 42 publications

Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Optimization of parameters applied to degradation and mineralization of p-nitrophenol using advanced oxidative processes

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

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Improved photodegradation of p-nitrophenol from water media using ternary MgFe2O4-doped TiO2/reduced graphene oxide

Cited by 24 publications

References 42 publications

Binary TiO2/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Binary TiO2/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Optimization of parameters applied to degradation and mineralization of p-nitrophenol using advanced oxidative processes

Research Progress and Prospects of Spinel Ferrite Nanostructures for the Removal of Nitroaromatics from Wastewater

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Product

Resources

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Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation

Binary TiO₂/reduced graphene oxide nanocomposite for improving methylene blue photodegradation