Novel strategy for membrane biofouling control in MBR with nano-MnO2 modified PVDF membrane by in-situ ozonation

2021 ◽  
pp. 151996
Author(s):  
Yili Chen ◽  
Qian Sheng ◽  
Jianjian Wei ◽  
Qinghe Wen ◽  
Dehua Ma ◽  
...  
Keyword(s):  
Pvdf Membrane ◽  
Membrane Biofouling ◽  
Biofouling Control ◽  
Novel Strategy

A novel photoelectrode based on eosin Y–rhodamine B duo-dye sensitized Au nanoparticles by in situ reduction

2017 ◽  
Vol 9 (38) ◽  
pp. 5586-5592 ◽  
Author(s):  
Y. L. Yuan ◽  
G. M. Pang ◽  
X. K. Li ◽  
W. Y. Zhu ◽  
H. C. Pan
Keyword(s):  
Rhodamine B ◽  
Au Nanoparticles ◽  
Specific Response ◽  
Eosin Y ◽  
In Situ Reduction ◽  
Au Nps ◽  
Dye Sensitized ◽  
Novel Strategy

A novel strategy for the fabrication of a photoelectrochemical system, involving a duo-dye sensitized Au NPs composite, that displays a specific response to mercury.

Embedded growth of colorful CsPbX3 (X = Cl, Br, I) nanocrystals in metal−organic frameworks at Room Temperature

2022 ◽  
Author(s):  
Chen Chen ◽  
Lei Nie ◽  
Yizhe Huang ◽  
Shuang Xi ◽  
Xingyue Liu ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Metal Organic Framework ◽  
Light Emitting ◽  
Confined Growth ◽  
Wide Color Gamut ◽  
Metal Organic ◽  
Interfacial Synthesis ◽  
Novel Strategy ◽  
Lead Halide

Abstract Herein, we develop a novel strategy for preparing all-inorganic cesium lead halide (CsPbX3, X= Cl, Br, I) perovskite nanocrystals (NCs)@Zn-based metal-organic framework (MOF) composites through interfacial synthesis. The successful embedding of fluorescent perovskite NCs in Zn-MOFs is due to the in-situ confined growth, which is attributed to the re-nucleation of water-triggered phase transformation from Cs4PbBr6 to CsPbBr3. The controllable synthesis of mixed-halide based composites with various emission wavelength can be achieved by adding the desired amount of halide (Cl or I) salts in the re-nucleation process. More importantly, the anion exchange reaction is inhibited among various composites with different halogen atoms by being trapped in MOFs. Besides, a white light-emitting diode (WLED) is produced using a blue LED chip with the green-emitting and red-emitting composites, which has a color coordinate of (0.3291, 0.3272) and a wide color gamut. This work provides a novel route to achieving perovskite NCs growth in MOFs, which also can be extended to the other NCs embedded in frames as well.

Novel strategy to improve the tribological property of polymer: In-situ growing amorphous carbon coating on the surface

2020 ◽  
Vol 505 ◽  
pp. 144626
Author(s):  
Wen Guan ◽  
Yongxin Wang ◽  
Christian B. Fischer ◽  
Stefan Wehner ◽  
Zongbao Wang ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
Tribological Property ◽  
Carbon Coating ◽  
Novel Strategy

Surface immobilization of chlorhexidine on a reverse osmosis membrane for in-situ biofouling control

2019 ◽  
Vol 576 ◽  
pp. 17-25 ◽  
Author(s):  
Taek-Seung Kim ◽  
Sang-Hee Park ◽  
Daeseon Park ◽  
Jung-Hyun Lee ◽  
Seoktae Kang
Keyword(s):  
Reverse Osmosis ◽  
Reverse Osmosis Membrane ◽  
Surface Immobilization ◽  
Biofouling Control

In situ growth of zeolitic imidazolate framework-8 on a GO–PVDF membrane as a sorbent for thin-film microextraction of caffeine followed by quantitation through high-performance liquid chromatography

2020 ◽  
Vol 12 (13) ◽  
pp. 1736-1743 ◽  
Author(s):  
Zahra Jafari ◽  
Mohammad Reza Hadjmohammadi
Keyword(s):  
Thin Film ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
In Situ Growth ◽  
Zeolitic Imidazolate Framework ◽  
Pvdf Membrane

In the present study, the applicability of ZIF-8/LDH/GO/PVDF as a sorbent for the thin film microextraction (TFME) method is introduced.

scholarly journals Recent Advances in Enzymatic and Chemoenzymatic Cascade Processes

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1258
Author(s):  
Noelia Losada-Garcia ◽  
Zaida Cabrera ◽  
Paulina Urrutia ◽  
Carla Garcia-Sanz ◽  
Alicia Andreu ◽  
...  
Keyword(s):  
Organic Chemistry ◽  
Solid Phase ◽  
Cascade Reactions ◽  
Review Article ◽  
The Novel ◽  
Enzyme Cascade ◽  
Cascade Processes ◽  
Novel Strategy ◽  
Substantial Interest

Cascade reactions have been described as efficient and universal tools, and are of substantial interest in synthetic organic chemistry. This review article provides an overview of the novel and recent achievements in enzyme cascade processes catalyzed by multi-enzymatic or chemoenzymatic systems. The examples here selected collect the advances related to the application of the sequential use of enzymes in natural or genetically modified combination; second, the important combination of enzymes and metal complex systems, and finally we described the application of biocatalytic biohybrid systems on in situ catalytic solid-phase as a novel strategy. Examples of efficient and interesting enzymatic catalytic cascade processes in organic chemistry, in the production of important industrial products, such as the designing of novel biosensors or bio-chemocatalytic systems for medicinal chemistry application, are discussed

scholarly journals Reducing the Impacts of Biofouling in RO Membrane Systems through In Situ Low Fluence Irradiation Employing UVC-LEDs

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 415
Author(s):  
Philipp Sperle ◽  
Christian Wurzbacher ◽  
Jörg E. Drewes ◽  
Bertram Skibinski
Keyword(s):  
Hydraulic Resistance ◽  
Extracellular Polymeric Substances ◽  
Residual Effect ◽  
Feed Stream ◽  
Membrane Systems ◽  
Light Emitting ◽  
Cycle Arrest ◽  
Uv Led ◽  
Biofouling Control

Biofouling is a major concern for numerous reverse osmosis membrane systems. UV pretreatment of the feed stream showed promising results but is still not an established technology as it does not maintain a residual effect. By conducting accelerated biofouling experiments in this study, it was investigated whether low fluence UV in situ treatment of the feed using UVC light-emitting diodes (UVC-LEDs) has a lasting effect on the biofilm. The application of UVC-LEDs for biofouling control is a novel hybrid technology that has not been investigated, yet. It could be shown that a low fluence of 2 mJ∙cm−2 delays biofilm formation by more than 15% in lab-scale experiments. In addition, biofilms at the same feed channel pressure drop exhibited a more than 40% reduced hydraulic resistance. The delay is probably linked to the inactivation of cells in the feed stream, modified adsorption properties or an induced cell cycle arrest. The altered hydraulic resistance might be caused by a change in the microbial community, as well as reduced adenosine triphosphate levels per cells, possibly impacting quorum sensing and extracellular polymeric substances production. Due to the observed biofilm attributes, low fluence UV-LED in situ treatment of the feed stream seems to be a promising technology for biofouling control.

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