Enhanced visible-light-driven photocatalytic performance for degradation of organic contaminants using PbWO4 nanostructure fabricated by a new, simple and green sonochemical approach

Zinatloo-Ajabshir, Sahar; Baladi, Mahin; Salavati‐Niasari, Masoud

doi:10.1016/j.ultsonch.2020.105420

Cited by 170 publications

(38 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Water resources, as one of the most basic conditions for human survival and development, are essential natural and strategic resources that maintain the functions of natural ecosystems and support the evolution of socioeconomic systems (Lai et al 2018;Yang et al 2021). Currently, many countries and regions in the world are facing water resources issues, such as water resource scarcity (Zhao et al 2020a(Zhao et al , 2020b, water environment pollution (Zinatloo-Ajabshir et al 2021a, 2021c and water ecological destruction (Zinatloo-Ajabshir et al 2021b). The problems of China are mainly manifested by fewer per capita water resources, uneven spatiotemporal distribution, serious pollution, low utilization efficiency, and inconsistency with regional economic development (Qian et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Study on drought events in China based on time-varying nested Archimedean-copula function

et al. 2021

View full text Add to dashboard Cite

Drought forecasting, which can enable contingency actions to be implemented in advance of a drought, plays a significant role in reducing the risks and impacts of drought. In this study, a simulation framework of the occurrence probability of drought events based on nested Copula function and Gibbs sampling is proposed to effectively compensate for the high-dimensional problems and lack of initial data in traditional methods. And the precipitation data of 718 meteorological stations from 1961 to 2018 in China was analyzed. The results showed that the occurrence location of drought events was mainly concentrated from 35° to 42° north latitude and 105° to 120° east longitude, with the occurrence time mainly concentrated from September to November. The Archimedean-copula function, constructed based on latitude, longitude, and occurrence time, could precisely determine the spatiotemporal joint probability distribution of drought events (RMSE:0.01). The optimal time-varying nested Archimedean-copula functions were obtained from February to May (Spring), June to September (Summer) and October to January (Autumn and Winter). Compared to the nested Archimedean-copula function, the accuracy of Gibbs sampling and simulation based on time-varying nested Archimedean-copula function was increased by 84.05% latitude and 69.76% longitude. The results provide an effective means for scientific drought forecasting, and water resource management departments can take preventive measures at an early stage.

show abstract

Section: Introductionmentioning

confidence: 99%

Study on drought events in China based on time-varying nested Archimedean-copula function

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The increase in biofilm-associated antibiotic resistance infections is boosting the demand for new advanced and more effective treatment. In this sense, nanotechnology offers a ground-breaking platform to address this challenge (Saeed Moshtaghi & Salavati-Niasari 2016;Sahar Zinatloo-Ajabshira et al 2020;Sahar Zinatloo-Ajabshir & Salavati-Niasari 2021;Zinatloo-Ajabshir et al 2021a, 2021b. One of the most promising environmental utilizations of nanotechnology has been in water treatment and remediation where various nanomaterials can purify the water by adsorbing dyes, heavy metals, and other pollutants, inactivating and removing pathogens, and converting of harmful materials into less harmful compounds (Saleem & Zaidi 2020).…”

Section: Introductionmentioning

confidence: 99%

Chlorination contributes to multi-antibiotic resistance in a pilot-scale water distribution system

et al. 2021

View full text Add to dashboard Cite

The generation and dissemination of antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs) in the environment has become a critical risk to human health. This study is based on a pilot-scale simulated water distribution system to understand the effects of chlorine disinfection treatment (without free chlorine) on ARB and ARGs in biofilms. The hydraulic parameters and pipe materials of the system were simulated based on a drinking water system. The results of the colony counts showed that bacterial multi-antibiotic resistance could be enhanced 13-fold in the biofilms of pipeline. The use of high-throughput qPCR (HT-qPCR) indicated that the total relative abundance of ARGs in biofilm samples increased significantly (p < 0.05), while the diversity of bacteria was shown to be reduced via taxonomic analysis of the V3–V4 region of 16S rRNA. The prominent types of ARGs were conferred resistance by aminoglycoside and β-lactam after the chlorine disinfection treatment, and antibiotic deactivation was the main mechanism. Phyla Proteobacteria had the highest abundance in both treatment and control groups but decreased from 70.81% (initial biofilm sample) to 26.09% (the 6th month biofilm sample) in the treatment groups. The results show that the chlorine disinfection plays a role in the risk of development of bacteria antibiotic resistance in pipe networks owing to bacteria in biofilms. This study was the first to investigate the contribution of chlorination without free chlorine to the bacterial community shift and resistome alteration in biofilms at a pilot test level.

show abstract

“…2011a). The alluvial groundwaters are a valuable resource, as, for example, many pharmaceuticals and other organic compounds are eliminated at BGS through bank and aquifer filtration processes (Kovacěvić2017; Kovacěvićet al 2017), which eliminates the need for sophisticated treatment methods (for example Zinatloo-Ajabshir et al 2020, 2021. The processes causing the reduction in yield, their correlation with selected parameters of groundwater quality, theoretical basis for defining the parameters that determine the hydraulic performance of the well and its temporal change, are presented in Dimkićet al (2011aDimkićet al ( , 2011cDimkićet al ( , 2014 and Institute Jaroslav Černi (2010).…”

Section: Introductionmentioning

confidence: 99%

Analysis of kinetics of local hydraulic losses on the laterals of radial wells at Belgrade groundwater source

et al. 2021

View full text Add to dashboard Cite

An analysis of the dynamics of the process of biochemical colmation of laterals of radial wells at the Belgrade Groundwater Source is presented. A very good correlation between the rate of forming of the colmations and the concentration of bivalent iron was obtained, on the basis of which the maximum recommended flows and velocities were defined, which are in good agreement with the values from previous articles and studies. The effects of regenerations on yield and the total volume of extracted water (up to 2 times higher than in the case of no regeneration) were investigated using a mathematical and software model. A correlation was developed linking the ratio of the amounts of water extracted with and without regeneration, to the aquifer hydraulic resistance, the coefficient of local hydraulic losses reduction due to regeneration, and the number of regenerations. The factor equal to the square root of the number of regenerations increased by one was added to the expressions for the maximum recommended values of inlet velocities and flows per lateral. The differences in flows and extracted volumes between operating modes with constant flow between regenerations and a constant, minimal water level were also examined using the model. The ratio between the total extracted volumes when the drawdown is kept equal to maximum and when the flow between the regenerations is kept constant reaches up to 1.25.

show abstract

Enhanced visible-light-driven photocatalytic performance for degradation of organic contaminants using PbWO4 nanostructure fabricated by a new, simple and green sonochemical approach

Cited by 170 publications

References 33 publications

Study on drought events in China based on time-varying nested Archimedean-copula function

Study on drought events in China based on time-varying nested Archimedean-copula function

Chlorination contributes to multi-antibiotic resistance in a pilot-scale water distribution system

Analysis of kinetics of local hydraulic losses on the laterals of radial wells at Belgrade groundwater source

Contact Info

Product

Resources

About