On the Models of Calculating Severe Hazard Caused by Gas-Leaking

Luo, Zhengshan; Wang, Xiaowan

doi:10.1061/41073(361)92

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…Among all the materials, carbon is an ideal adsorption material owing to its ease of functionalization and its stability [28]. Many research groups have explored C 18 , activated carbon, and carbon nanotubes (CNT)-based magnetic nanoparticles (MNPs) to extract environmental pollutants [29][30][31][32]. Graphene (G), an atomically thin honeycomb lattice of carbon atoms, was first identified by Geim et al in a simple tabletop experiment in 2004 [33].…”

Section: Introductionmentioning

confidence: 99%

The use of graphene‐based magnetic nanoparticles as adsorbent for the extraction of triazole fungicides from environmental water

Wang

et al. 2012

J of Separation Science

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A graphene-based magnetic nanocomposite (graphene-ferriferrous oxide; G-Fe(3)O(4)) was synthesized and used as an effective adsorbent for the preconcentration of some triazole fungicides (myclobutanil, tebuconazole, and hexaconazole) in environmental water samples prior to high-performance liquid chromatography-ultraviolet detection. The method, which takes the advantages of both nanoparticle adsorption and magnetic phase separation from the sample solution, could avoid the time-consuming experimental procedures commonly involved in the traditional solid phase extraction such as centrifugation and filtrations. Various experimental parameters affecting the extraction efficiencies such as the amount of the magnetic nanocomposite, extraction time, the pH values of the sample solution, salt concentration, and desorption conditions were investigated. Under the optimum conditions, the enrichment factors of the method for the three analytes were 5824, 3600, and 4761, respectively. A good linearity was observed in the range of 0.1-50 ng/mL for tebuconazole and 0.05-50 ng/mL for myclobutanil and hexaconazole, respectively, with the correlation coefficients ranging from 0.9992 to 0.9996. The limits of detection (S/N = 3) of the method were between 0.005 and 0.01 ng/mL. The results indicated that as a magnetic solid-phase extraction adsorbent, the graphene-ferriferrous oxide (G-Fe(3)O(4)) has a great potential for the preconcentration of some compounds from liquid samples.

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Section: Introductionmentioning

confidence: 99%

The use of graphene‐based magnetic nanoparticles as adsorbent for the extraction of triazole fungicides from environmental water

Wang

et al. 2012

J of Separation Science

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“…Synthesis of Fe 3 O 4 @cellulose nanocomposites: All the chemicals were analytical grade from Sigma-Aldrich (UK) without specific statement. Cellulose suspension was prepared by dissolving 0.4 g cellulose in 20 mL alkaline solution (NaOH:urea:H 2 O=7:12:81), mixed well and standing at 4°C overnight [11]. MNPs were synthesized by co-precipitation method [4].…”

Section: Methodsmentioning

confidence: 99%

Preparing and characterizing Fe 3 O 4 @cellulose nanocomposites for effective isolation of cellulose-decomposing microorganisms

Zhao

Ding

et al. 2016

Materials Letters

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This study developed Fe3O4@cellulose nanocomposites by coprecipitation synthesis for bacteria capture and isolation. By surface modification with cellulose, the Fe3O4@cellulose nanocomposites have 20 nm average particle size and 3.3-24.9 emu/g saturation magnetization.Living bacteria could be captured by the Fe3O4@cellulose nanocomposites and harvested by magnetic field, with high efficiency (95.1%) and stability (>99.99%). By metabolizing cellulose and destroying the Fe3O4@cellulose@bacteria complex, cellulose-decomposing microorganisms lost the magnetism. They were therefore able to be isolated from the inert microbial community and the separation efficiency achieved over 99.2%. This research opened a door to cultivate the uncultivable cellulose-decomposing microorganisms in situ and further characterize their ecological functions in natural environment.Magnetic nanoparticles (MNPs) have been widely applied in biomedical and biological research.Surface modified MNPs are recently used to investigate the microbial behavior and functions in a complex microbiota, but the modification method is not well established for wider range of functional bacteria. This study developed a new surface modification method and synthesized the Fe 3 O 4 @cellulose nanocomposites.The bacterial capture efficiency was above 95.1% and the stability is above 99.99%. More importantly, the Fe 3 O 4 @cellulose nanocomposites successfully isolate the cellulose-decomposing Aeromonasveronii from an artificial microbial community.This work broadens the applicable potential of MNPs in assessing more unknown cellulose-decomposing bacteria in natural environment and their metabolic pathways. Novelty statement Fe3O4@cellulose nanocomposites can be used for the first time to isolate cellulosedecomposing bacteria from complex microbial community.  Fe3O4@cellulose achieves high bacteria capture efficiency (>95.1%) and stability (>99.99%).  Fe3O4@cellulose successfully isolates cellulose-decomposing Aeromonasveroniiand the separation efficiency is 99.2%.Thanks for the reviewers' comments and editors's suggestion. We have corrected the manuscript by adding Figure S1, 2 and 3 into the main manuscript and correcting the Figure number and caption.Response to Reviewers Magnetic field isolation Raw magnetic nanoparticles (MNPs) Fe 3 O 4 @cellulose nanocomposites Acinetobacter baylyi (no cellulose-decomposing capacity) Aeromonas veronii (cellulose-decomposing bacterium) MNPs synthesis Cellulose functionalization Fe 3 O 4 @cellulose nanocomposites Bacteria functionalization Cultivation and cellulose decomposing Graphical Abstract Highlight 1. Fe 3 O 4 @cellulose nanocomposites for cellulose-decomposing bacteria isolation. 2. Bacteria capture efficiency >95.1% and stability >99.99%. 3. Cellulose-decomposing bacteria separation efficiency over 99.2%. 4. Fe 3 O 4 @cellulosecan identify unknown cellulose-decomposingmicrobesin situ. AbstractThis study developed Fe 3 O 4 @cellulose nanocomposites by co-precipitation synthesis for bacteria capture and isolation. B...

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“…[14] Therefore, degradation of these dyes from wastewater is very important. Adsorption, [14][15][16][17][18] coagulation [18][19][20] and membrane filtration [21] are some conventional methods for treatment of wastewaters containing azo dyes. The main drawback of these methods is that the nature of the pollutant is maintained after treatment.…”

Section: Introductionmentioning

confidence: 99%

Application of palladium nanoparticle‐decorated Artemisia abrotanum extract‐modified graphene oxide for highly active catalytic reduction of methylene blue, methyl orange and rhodamine B

Salehi

Yousefi

Hekmati

et al. 2019

Applied Organom Chemis

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A green palladium‐based catalyst supported on Artemisia abrotanum extract‐modified graphene oxide (Pd NPs/RGO‐A. abrotanum) hybrid material has been used as a recoverable and heterogeneous nanocatalyst for the catalytic reduction of various dyes, including methylene blue, methyl orange and rhodamine B, in the presence of NaBH4 as reducing agent in aqueous medium at room temperature. With the help of UV–visible spectroscopy, the catalytic reactions were investigated. According to the results, these reactions followed the pseudo‐first‐order rate equation.

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On the Models of Calculating Severe Hazard Caused by Gas-Leaking

Cited by 7 publications

References 1 publication

The use of graphene‐based magnetic nanoparticles as adsorbent for the extraction of triazole fungicides from environmental water

The use of graphene‐based magnetic nanoparticles as adsorbent for the extraction of triazole fungicides from environmental water

Preparing and characterizing Fe 3 O 4 @cellulose nanocomposites for effective isolation of cellulose-decomposing microorganisms

Application of palladium nanoparticle‐decorated Artemisia abrotanum extract‐modified graphene oxide for highly active catalytic reduction of methylene blue, methyl orange and rhodamine B

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