Characteristics of removal of waste-water marking pharmaceuticals with typical hydrophytes in the urban rivers

Zhou, Haidong; Liu, Xiaojing; Chen, Xiaomeng; Ying, Tianqi; Ying, Zhenxi

doi:10.1016/j.scitotenv.2018.04.384

Cited by 22 publications

(10 citation statements)

References 44 publications

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“…Despite its low concentration in the environment, CBZ is resistant to biodegradation and to conventional wastewater treatment processes, and it is retained in the environment for a long time. Given these facts, CBZ is classified as a persistent organic pollutant [9,10,11]. Its accumulation poses a threat to the quality of water resources, and it is suspected to pose a toxic effect on aquatic organisms [3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fe- and Co-Doped TiO2 with Improved Photocatalytic Activity Under Visible Irradiation Toward Carbamazepine Degradation

et al. 2019

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Pure TiO2 and Fe- and Co-doped TiO2 nanoparticles (NPs) as photocatalysts were synthesized using wet chemical methods (sol-gel + precipitation). Their crystalline structure and optical properties were analyzed using X-ray diffraction (XRD), Raman spectroscopy and Fourier-transform infrared (FTIR) spectroscopy, ultraviolet-visible light (UV-Vis) diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The photocatalytic activity of the synthesized nanoparticles was evaluated through degradation of carbamazepine (CBZ) under UV-A and visible-light irradiations. The XRD and Raman analyses revealed that all synthesized nanomaterials showed only the anatase phase. The DRS results showed that the absorption edge was blue-shifted for Fe-doped TiO2 NPs. The decrease in charge recombination was evidenced from the PL investigation for both Co-doped and Fe-doped TiO2 nanomaterials. An enhancement in photocatalytic degradation of carbamazepine in aqueous suspension under both UV-A light and visible-light irradiations was observed for Fe-doped Titania NPs by comparison with pure TiO2. These results suggest that the doping cations could suppress the electron/hole recombination. Therefore, the photocatalytic activity of TiO2-based nanomaterials was enhanced.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Fe- and Co-Doped TiO2 with Improved Photocatalytic Activity Under Visible Irradiation Toward Carbamazepine Degradation

et al. 2019

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“…The bioconcentration factor (BCF), which stands for the uptake ability of xenobiotics by plants, was calculated to be 10.6. This was comparable with other processes, such as the adsorption of heavy metals and pharmaceuticals by L. minor , implying the high accumulation capability of L. minor toward nanoparticles. Therefore, transfer of nanoparticles from natural waters toward the food chain should be taken into careful consideration because L. minor is frequently used as livestock food…”

Section: Resultsmentioning

confidence: 99%

“…Owing to the presence of AuNPs as an enhancing substrate, the SERS signal can be encoded in the SiO 2 nanoparticles, which can be utilized to detect nanoparticles using Raman spectroscopy. Here, Lemna minor ( L. minor ) was adopted as the model floating plant as it is an important functional plant in aquatic ecosystems and agriculture with a high potential to enter into the food chain . Meanwhile, due to the well-distinguished structure of the leaf as well as the root, L. minor is also an excellent model to quantify the interaction between plant with suspended nanoparticles .…”

Section: Introductionmentioning

confidence: 99%

“…Here, Lemna minor (L. minor) was adopted as the model floating plant as it is an important functional plant in aquatic ecosystems and agriculture with a high potential to enter into the food chain. 27 Meanwhile, due to the well-distinguished structure of the leaf as well as the root, L. minor is also an excellent model to quantify the interaction between plant with suspended nanoparticles. 28 The capability of core−shell nanoparticle-enhanced Raman spectroscopy (CSNERS) toward monitoring nanoparticle−plant interactions was then assessed.…”

Section: Introductionmentioning

confidence: 99%

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Selectively Tracking Nanoparticles in Aquatic Plant Using Core–Shell Nanoparticle-Enhanced Raman Spectroscopy Imaging

Yang

et al. 2021

ACS Nano

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Nanoparticles contribute to enormous environmental processes, but, due to analytical challenges, the understanding of nanoparticle fate remains elusive in complex environmental matrices. To address the challenge, a core–shell nanoparticle-enhanced Raman spectroscopy (CSNERS) imaging method was developed to selectively track prevalent SiO2 nanoparticles in an aquatic plant, Lemna minor. By encapsulating gold nanoparticles and Raman reporters inside, the resonance Raman signature was enhanced, thus enabling the sensitive and selective detection of SiO2 nanoparticles at an environmentally relevant concentration. The panoramic visualization of the translocation pathway of nanoparticles shows an unexpected, fast (in hours) and a preferential accumulation of nanoparticles on the node, leaf edge, root cap, etc., implying the ability of CSNERS to spectroscopically determine nanotoxicity. The core–shell design in CSNERS was capable of multiplex labeling two differently charged nanoparticles and distinguishing their biobehavior simultaneously. Meanwhile, the CSNERS method can be further applied for a variety of nanoparticles, implying its promising applications for nanotoxicity research and biogeochemical study.

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“…At the bottom of the flume, approximately 7-cm thick sediment collected was evenly spread, then 200-L surface water collected was slowly pumped and allowed to stand for 1-2 days so as that the sediment was completely precipitated. The specific parameters of the device can refer to previous study (Zhou et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Antibiotic fate in an artificial‐constructed urban river planted with the algae Microcystis aeruginosa and emergent hydrophyte

Zhou

Cui

et al. 2022

Water Environment Research

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The behavior and removal of six antibiotics, that is, azithromycin, clarithromycin, sulfathiazole, sulfamethoxazole, ciprofloxacin, and tetracycline, in an artificial‐controllable urban river (ACUR) were investigated. The ACUR was constructed to form five artificial eco‐systems by planting three emergent hydrophytes and Microcystis aeruginosa: (1) Control; (2) MA: M. aeruginosa only; (3) MA‐J‐C: M. aeruginosa combined with Juncus effusus and Cyperus alternifolius; (4) MA‐C‐A: M. aeruginosa combined with C. alternifolius and Acorus calamus L.; (5) MA‐A‐J: M. aeruginosa combined with A. calamus L. and J. effusus. The MA‐C‐A system achieved the best removal of azithromycin and clarithromycin after 15‐day test with the final concentrations 0.92 and 0.83 μg/L. The contents of ciprofloxacin and tetracycline in sediment were highest, up to 1453 and 1745 ng/g. The antibiotic plant bioaccumulation was higher in roots rather than the shoots (stem and leaves). No target antibiotics were detected in algae cells. The combination of hybrid hydrophytes had a certain effect on the removal of antibiotics, and thus selecting appropriate hydrophytes in urban rivers could greatly improve water quality. The overall removal of six antibiotics was greatly improved by the ACUR containing the hybrid hydrophytes and the algae, indicating a synergistic effect on antibiotic removal. Practitioner points Controllable‐mobile artificial eco‐systems were developed with emergent hydrophytes and M. aeruginosa. The M. aeruginosa + Cyperus alternifolius + Acorus calamus L. system removed azithromycin and clarithromycin most at the end of tests. Emergent hydrophytes and M. aeruginosa have a synergistic effect on the removal of antibiotics. The combination of emergent hydrophytes did play an important role in the removal of antibiotics. The artificial eco‐systems containing the hybrid hydrophytes and the algae could greatly improve the overall removal of antibiotics.

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Characteristics of removal of waste-water marking pharmaceuticals with typical hydrophytes in the urban rivers

Cited by 22 publications

References 44 publications

Synthesis of Fe- and Co-Doped TiO2 with Improved Photocatalytic Activity Under Visible Irradiation Toward Carbamazepine Degradation

Synthesis of Fe- and Co-Doped TiO2 with Improved Photocatalytic Activity Under Visible Irradiation Toward Carbamazepine Degradation

Selectively Tracking Nanoparticles in Aquatic Plant Using Core–Shell Nanoparticle-Enhanced Raman Spectroscopy Imaging

Antibiotic fate in an artificial‐constructed urban river planted with the algae Microcystis aeruginosa and emergent hydrophyte

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