Ultrasound-aasisted photodegradation of Alprazolam in aqueous media using a novel high performance nanocomosite hybridation g-C3N4/MWCNT/ZnO

Shi, Xiaolong; Liu, Jia‐Bao; Hosseini, Mojgan; Shemshadi, R.; Razavi, Razieh; Parsaee, Zohreh

doi:10.1016/j.cattod.2019.04.070

Cited by 17 publications

(12 citation statements)

References 99 publications

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“…The relative strength of NBE to deep level defect emissions exhibits a dramatic threshold dependence on surface roughness, and this point involves directly the method employed to preare the semicoductor. Surface optical emission efficiency increases over the roughness decreases to unit cell dimensions, highlighting the coupled role of surface morphology and near-surface defects for high efficiency ZnO emitters [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…It is importate remark also that the UV emission corresponds to the near band edge (NBE) emission assigned to to the radiative annihilation of excitons and the visible emission is commonly referred to as a deep-level or trap-state emission [7][8][9]. The relative strength of NBE to deep level defect emissions exhibits a dramatic threshold dependence on surface roughness, and this point involves directly the method employed to preare the semicoductor.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, compared to TiO2, materials containing the Zn(II) ion constitute more effective photocatalysts to remediate water, because they generate H 2 O 2 more efficiently [7][8][9], afford higher mineralization rates, contain a larger number of active sites for photocatalysis, and exhibit greater surface reactivity.…”

Section: Introductionmentioning

confidence: 99%

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Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

et al. 2022

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In recent decades, the increasing use of pesticides to improve food productivity has led to the release of effluents that contaminate the environment. To prepare a material that may help to treat effluents generated during agricultural practice, we used a new method based on the non-hydrolytic sol-gel route to obtain zinc photocatalysts in aluminophosphate matrixes. IR spectroscopy, X-ray diffraction, thermal analysis, differential scanning electron microscopy, energy dispersion spectroscopy, and specific surface area and pore volume determined from the nitrogen adsorbed were used to characterize materials treated at different temperatures. X-ray analysis showed how heat-treatment affected the structure of the material: Zn-AlPO4 in the trigonal and orthorhombic phase was obtained at 750 and 1000 °C, respectively. These phases directly influenced the ability of the material to generate OH radicals. The capacity of the materials to treat effluents was tested in the photodegradation of the pesticide Fipronil. The photocatalytic reactions were monitored by ultraviolet-visible spectroscopy and gas chromatography-mass spectrometry analyses. Zn-AlPO4 treated at 750 °C showed better photodegradation results--it removed 80% of the pesticide in 2 h when higher mass (150 mg) was tested. Long-time treatment of the effluent with Zn-AlPO4 treated at 750 °C completely photodegraded Fipronil. GC-MS analysis confirmed the photodegration profile, and only traces of Fipronil were observed after photocatalytic reaction for 120 min in the presence of Zn-AlPO4 treated at 750 °C under UV radiation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

et al. 2022

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“…Compared with a single ultrasound or a single photocatalysis, the sono-photocatalysis with synergistic effects will obtain a great improvement during the degradation process [ 37 , 38 ]. Thus, the synergistic effects of ultrasound and photocatalysis is reported as an efficient method for enhancing degradation efficiency in sonophotocatalysis [ 39 ]. Additionally, this sonophotocatalysis also can produce a tremendous number of active free radicals in a very short period of time, which are adequate to oxidate the intractable organic pollutants [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

The Sono-Photocatalytic Performance of PAN/g-C3N4/CdS Nanofibers Heterojunction

et al. 2021

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The Polyacrylonitrile (PAN)/g-C3N4/CdS nanofiber sono-photocatalysts were successfully synthesized by an ordinary electrospining-chemical deposition method. The PAN/g-C3N4/CdS heterojunction nanofibers constructed with the CdS nanoparticles deposited on the PAN/g-C3N4 nanofibers. The g-C3N4/CdS heterojunction increase of light absorption and the construction of heterojunction can depress recombination of charge carrier and PAN nanofibers improve the recyclability successfully. Finally, a highly effective photocatalytic activity was performed by degradation of Rhodamine B (RhB) in visible light irradiation. Furthermore, an ultrasonic method is introduced into the sono-photocatalytic system to enhance the degradation efficiency of RhB ascribed to the synergistic effect of ultrasound.

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“…Many semiconductor materials such as g-C 3 N 4 , ZnO, SnS 2 , ZnS, CdS and TiO 2 that possess suitable band structures are employed for photocatalysts. [10][11][12][13][14] Among them, TiO 2 photo-catalyst shows distinguished advantages including high photocatalytic efficiency, stable chemical property, strong redox characteristic and good corrosion resistance. [14][15][16] The catalytic performances of TiO 2 crystals are related to phases, crystal sizes and surface areas.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Ions in Wastewater Affect the Photodegradation of Phenol‐4‐sulfonic Acid over Biphasic TiO₂/Activated Carbon Fiber Composites

Cheng

Guo

et al. 2021

ChemistrySelect

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The effect mechanism of Cu 2 + , Zn 2 + and Ni 2 + ions in wastewater on photocatalytic activity remained unknown. For phenol-4-sulfonic acid (PSA) photodegradation, we fabricated anatase/rutile/activated carbon fiber composites (A/R/ACFs) by the hydrothermal deposition of rutile TiO 2 nanorods and anatase TiO 2 nanoparticles on ACFs. A/R/ACFs exhibited better photocatalytic activity than both R/ACFs and A/ACFs because anatase/rutile heterojunctions supported electron transfer from rutile to anatase. All Cu 2 + , Zn 2 + and Ni 2 + ions in wastewater improved the chemical stability of PSA by forming PSA-Cu(II), PSA-Zn(II) and PSA-Ni(II) complex compounds, and thus inhibited the PSA photodegradation. Notably, the as-formed photoelectrons over A/R/ACFs were partly consumed due to the reduce reaction of Cu 2 + ions into Cu + /Cu 0 , avoiding electron-hole recombination and improving PSA photodegradation efficiency. No reduce reaction of Zn 2 + and Ni 2 + ions occurred during the PSA photodegradation process. Hence, the A/R/ACFs are an effective photocatalyst for wastewater purification, and low Cu 2 + concentrations facilitated the PSA photodegradation.

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Ultrasound-aasisted photodegradation of Alprazolam in aqueous media using a novel high performance nanocomosite hybridation g-C3N4/MWCNT/ZnO

Cited by 17 publications

References 99 publications

Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

The Sono-Photocatalytic Performance of PAN/g-C3N4/CdS Nanofibers Heterojunction

Heavy Metal Ions in Wastewater Affect the Photodegradation of Phenol‐4‐sulfonic Acid over Biphasic TiO₂/Activated Carbon Fiber Composites

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Ultrasound-aasisted photodegradation of Alprazolam in aqueous media using a novel high performance nanocomosite hybridation g-C3N4/MWCNT/ZnO

Cited by 17 publications

References 99 publications

Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

Photodegradation of Fipronil by Zn-AlPO4 Materials Synthesized by Non-Hydrolytic Sol–Gel Method

The Sono-Photocatalytic Performance of PAN/g-C3N4/CdS Nanofibers Heterojunction

Heavy Metal Ions in Wastewater Affect the Photodegradation of Phenol‐4‐sulfonic Acid over Biphasic TiO2/Activated Carbon Fiber Composites

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Heavy Metal Ions in Wastewater Affect the Photodegradation of Phenol‐4‐sulfonic Acid over Biphasic TiO₂/Activated Carbon Fiber Composites