Insight into quinolones and sulfonamides degradation, intermediate product identification and decomposition pathways with the assistance of Bi2MoO6/Bi2WO6/MWCNTs photocatalyst

Wang, Wei; Tian, Junmei; Zhu, Zhaojie; Zhu, Chenmiao; Liu, Baojiang; Hu, Chunyan

doi:10.1016/j.psep.2020.11.043

Cited by 24 publications

(3 citation statements)

References 59 publications

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“…Currently, more researchers are paying attention to the design of ternary photocatalysts based on CNTs, enhancing the removal efficiency of various antibiotics, which mainly are quinolones [138,146], sulfonamides [146], β-lactams [147,148] and tetracyclines [138,149,150]. demonstrated the preparation of Z-scheme Ag-AgBr/Bi 2 O 2 CO 3 /CNT heterojunctions, which had an outstanding complete removal of TC within 40 min.…”

Section: Carbon Nanotube-based Materials Applied In Photocatalytic De...mentioning

confidence: 99%

Recent Advances in Carbon-Based Materials for Adsorptive and Photocatalytic Antibiotic Removal

Xue

et al. 2022

Nanomaterials

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Antibiotics have been a primary environmental concern due to their widespread dispersion, harmful bioaccumulation, and resistance to mineralization. Unfortunately, typical processes in wastewater treatment plants are insufficient for complete antibiotic removal, and their derivatives in effluent can pose a threat to human health and aquatic communities. Adsorption and photocatalysis are proven to be the most commonly used and promising tertiary treatment methods. Carbon-based materials, especially those based on graphene, carbon nanotube, biochar, and hierarchical porous carbon, have attracted much attention in antibiotic removal as green adsorbents and photocatalysts because of their availability, unique pore structures, and superior physicochemical properties. This review provides an overview of the characteristics of the four most commonly used carbonaceous materials and their applications in antibiotic removal via adsorption and photodegradation, and the preparation of carbonaceous materials and remediation properties regarding target contaminants are clarified. Meanwhile, the fundamental adsorption and photodegradation mechanisms and influencing factors are summarized. Finally, existing problems and future research needs are put forward. This work is expected to inspire subsequent research in carbon-based adsorbent and photocatalyst design, particularly for antibiotics removal.

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Section: Carbon Nanotube-based Materials Applied In Photocatalytic De...mentioning

confidence: 99%

Recent Advances in Carbon-Based Materials for Adsorptive and Photocatalytic Antibiotic Removal

Xue

et al. 2022

Nanomaterials

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“…Advanced Oxidation Processes (AOPs) offer a solution to remove trace amounts of recalcitrant organic pollutants from wastewater. Among other AOPs, heterogeneous photocatalysis has been applied to remove several sulfonamides, using different photocatalysts and light sources [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Comparing the efficiency of heterogeneous photocatalysis to other AOPs, sulfonamide degradation is highly cost-effective for ozonation, but toxic, ozone resistant intermediates forms, while using TiO 2 or ZnO, the mineralization is also efficient. Several visible light-activated photocatalysts (g-C 3 N 4 [ 10 , 14 ], Bi 2 O 4 [ 12 ], Bi 2 MoO 6 /Bi 2 WO 6 [ 13 ], WO 3 [ 11 ]; Ce x Zr y O 2 [ 7 ]) were also tested with sulfonamides, with usually lower efficiency compared to TiO 2 and ZnO, although some promising results can also be found. The efficiency of BiOI/BiOCl composite photocatalyst for the degradation of SMP and methyl orange under UV (398 nm) and visible light irradiation was comparable to TiO 2 P25, but highly toxic intermediates were accumulated opposite to the P25, which was efficient for mineralization and toxicity decrease [ 51 ].…”

Section: Introductionmentioning

confidence: 99%

Wavelength Dependence of the Transformation Mechanism of Sulfonamides Using Different LED Light Sources and TiO2 and ZnO Photocatalysts

et al. 2021

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The comparison of the efficiency of the commercially available photocatalysts, TiO2 and ZnO, irradiated with 365 nm and 398 nm light, is presented for the removal of two antibiotics, sulfamethazine (SMT) and sulfamethoxypyridazine (SMP). The •OH formation rate was compared using coumarin, and higher efficiency was proved for TiO2 than ZnO, while for 1,4-benzoquinone in O2-free suspensions, the higher contribution of the photogenerated electrons to the conversion was observed for ZnO than TiO2, especially at 398 nm irradiation. An extremely fast transformation and high quantum yield of SMP in the TiO2/LED398nm process were observed. The transformation was fast in both O2 containing and O2-free suspensions and takes place via desulfonation, while in other cases, mainly hydroxylated products form. The effect of reaction parameters (methanol, dissolved O2 content, HCO3− and Cl−) confirmed that a quite rarely observed energy transfer between the excited state P25 and SMP might be responsible for this unique behavior. In our opinion, these results highlight that “non-conventional” mechanisms could occur even in the case of the well-known TiO2 photocatalyst, and the effect of wavelength is also worth investigating.

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Green remediation of pharmaceutical wastes using biochar: a review

et al. 2021

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Insight into quinolones and sulfonamides degradation, intermediate product identification and decomposition pathways with the assistance of Bi2MoO6/Bi2WO6/MWCNTs photocatalyst

Cited by 24 publications

References 59 publications

Recent Advances in Carbon-Based Materials for Adsorptive and Photocatalytic Antibiotic Removal

Recent Advances in Carbon-Based Materials for Adsorptive and Photocatalytic Antibiotic Removal

Wavelength Dependence of the Transformation Mechanism of Sulfonamides Using Different LED Light Sources and TiO2 and ZnO Photocatalysts

Green remediation of pharmaceutical wastes using biochar: a review

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