Functional sustainability of periphytic biofilms in organic matter and Cu2+ removal during prolonged exposure to TiO2 nanoparticles

Liu, Junzhuo; Tang, Jun; Wan, Juanjuan; Wu, Chenxi; Graham, Bruce; Kerr, Philip G.; Wu, Yonghong

doi:10.1016/j.jhazmat.2017.08.068

Cited by 44 publications

(10 citation statements)

References 39 publications

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“…This indicated that after long-term exposure compositional alterations occur but they do not yet necessarily reflect a biologically significant impact on the functioning of the soil bacterial community (Zhai et al, 2019a). A similar functional redundancy was also observed in a periphytic community in long-term exposure to TiO 2 NPs (Liu et al, 2019). These results indicate that the duration of exposure is another key factor for assessing TiO 2 NPs ecotoxicity.…”

Section: Co-occurrence Between Featured Taxa and Functionmentioning

confidence: 62%

“…Moreover, the loss of the susceptible taxa functioning could be compensated for by the promotion of survival taxa sharing the similar functioning (Zhai et al, 2019a). The soil bacterial community may experience evolutionary adaptation after long-term exposure to TiO 2 NPs and remains sustainable functioning (Liu et al, 2019). Considering that in this study we did not observe the effect of long-term TiO 2 NPs exposure on the diversity of the featured taxa, the highly diverse species could compensate for the partial disruption of community functioning regulated by certain taxa (Rosenfeld, 2002;Strickland et al, 2009).…”

Section: Compositional and Functional Responses Of Soil Bacterial Community To Tio 2 Nps In Soils Varying With Clay And Om Componentsmentioning

confidence: 99%

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Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration

Zhai

Chen

Liu

et al. 2021

Science of The Total Environment

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Section: Co-occurrence Between Featured Taxa and Functionmentioning

confidence: 62%

Section: Compositional and Functional Responses Of Soil Bacterial Community To Tio 2 Nps In Soils Varying With Clay And Om Componentsmentioning

confidence: 99%

Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration

Zhai

Chen

Liu

et al. 2021

Science of The Total Environment

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“…Briefly, approximately 0.3 g periphyton (wet weight) from the three Cu treatments (control, 0.5 mg/L, and 2 mg/L) were transferred to an Erlenmeyer flask filled with 150 mL of synthetic wastewater. The components of synthetic wastewater were prepared following a previous study [26]: COD 142 ± 4.5 mg/L, total nitrogen 3.74 ± 0.32 mg/L, total phosphorus 1.16 ± 0.16 mg/L. These experiments were conducted in a small tank under the same conditions as the periphyton culture.…”

Section: Experimental Designmentioning

confidence: 99%

Responses of Periphyton Microbial Growth, Activity, and Pollutant Removal Efficiency to Cu Exposure

Zhong

Zhao²,

Song³

2020

IJERPH

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Periphyton is an effective matrix for the removal of pollutants in wastewater and has been considered a promising method of bioremediation. However, it still needs to be verified whether periphyton can maintain microbial activity and pollutant removal efficiency when dealing with the influence with complex components, and the underlying mechanisms of periphyton need to be revealed further. Herein, this study investigated the microbial growth, activity and functional responses of periphyton after removal of Cu from wastewater. Results showed that the cultivated periphyton was dominated by filamentous algae, and high Cu removal efficiencies by periphyton were obtained after 108 h treatments. Although 2 mg/L Cu2+ changed the microalgal growth (decreasing the contents of total chlorophyll-a (Chla), the carbon source utilization and microbial metabolic activity in periphyton were not significantly affected and even increased by 2 mg/L Cu2+. Moreover, chemical oxygen demand (COD) removal rates were sustained after 0.5 and 2 mg/L Cu2+ treatments. Our work showed that periphyton had strong tolerance and resistance on Cu stress and is environmentally friendly in dealing with wastewater containing heavy metals, as the microbial functions in pollutant removal could be maintained.

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“…Here, TiO 2 employed as an organic blocker and UV531 act as an organic absorber to provide better UV protection for the modified Nano fibrous membranes [42]. For improving the functional sustainability of periphytic biofilms, its surface was exposed to titanium dioxide nanoparticles, hence it provides greater removal of organic matter and Cu 2+ [43]. In the field of biomedical field, TiO 2 have wide application because of its property of good biocompatibility, low toxicity and employed as an efficient photosensitizers.…”

Section: Application Of Tiomentioning

confidence: 99%

Nano Titanium Dioxide -An Effective Photocatalyst for Emerging Applications

Raja¹,

Geetha²,

Ilavarasi³

2019

IJITEE

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Titanium dioxide (TiO2 ) is a widely studied material and exists in three major crystal structures: rutile, brookite and anatase. Due to its advantages in high chemical and thermal stability, non-toxicity, high catalytic activity, resistance to corrosion, and high reactivity under ultraviolet light (<387 nm),it can be used in many applications such as photo catalysis, photovoltaics, sensors, hydrogen generators batteries, self-cleaning, electrochromic devices and also used in some biomedical application for site specific drug delivery . These applications in various fields depends not only on the properties of the TiO2 material but also it involves in modifying TiO2 structure and doping of other element on it which will show adverse impact in application of TiO2 with the surrounding environment. In this review, we are discussing about the synthesis, properties, and applications of titanium dioxide nanoparticle (TiO2 NP) in various fields.

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Functional sustainability of periphytic biofilms in organic matter and Cu2+ removal during prolonged exposure to TiO2 nanoparticles

Cited by 44 publications

References 39 publications

Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration

Compositional and functional responses of bacterial community to titanium dioxide nanoparticles varied with soil heterogeneity and exposure duration

Responses of Periphyton Microbial Growth, Activity, and Pollutant Removal Efficiency to Cu Exposure

Nano Titanium Dioxide -An Effective Photocatalyst for Emerging Applications

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