Enhanced water-resistant performance of Cu-BTC through polyvinylpyrrolidone protection and its capture ability evaluation of methylene blue

2022 ◽  
Author(s):  
Yingzhi Zhu ◽  
Danping Wu ◽  
Jiehong Chen ◽  
Na Ma ◽  
Wei Dai
Keyword(s):  
Thin Film ◽  
Methylene Blue ◽  
Cationic Dye ◽  
Present Contribution ◽  
Ability Evaluation

Water instability issue greatly restrict the application of Cu-BTC for cationic dye (e.g. methylene blue (MB)) capture from wastewater. In the present contribution, polyvinylpyrrolidone (PVP) thin film was novelty grew...

DYNAMIC BEHAVIOR OF METHYLENE BLUE ON E. coli K30 CAPSULAR POLYSACCHARIDE USING LAYER BY LAYER SELF-ASSEMBLY TECHNIQUE

2020 ◽  
pp. 2050027
Author(s):  
BANDANA DAS ◽  
ALPANA BAIDYA ◽  
SANTANU MAJUMDER ◽  
RANENDU KUMAR NATH
Keyword(s):  
Thin Film ◽  
Methylene Blue ◽  
Dynamic Behavior ◽  
Self Assembly ◽  
Capsular Polysaccharide ◽  
Layer By Layer ◽  
Cationic Dye ◽  
Bacterial Polysaccharide ◽  
E Coli ◽  
Assembly Technique

Layer-by-layer (LbL) self-assembly is one of the unique methods for fabrication of ultra-thin film. This technique has immense application aross many fields in today’s life. In this paper, we have presented the fabrication of the thin film comprising of antifungal and antibacterial cationic dye methylene blue with negatively charged E. coli K30 bacterial polysaccharide sharing with PAH. The multilayers were characterized by UV–Vis absorption spectra and AFM. Various photophysical behaviors were investigated. Such studies provide a new light in the research of layer by layer self-assembly technique.

Enhanced methylene blue removal efficiency of SnO2 thin film using sono-photocatalytic processes

2021 ◽  
Vol 117 ◽  
pp. 111116
Author(s):  
Mohamed Amine Bezzerrouk ◽  
Mohamed Bousmaha ◽  
Madani Hassan ◽  
Ahmed Akriche ◽  
Bachir Kharroubi ◽  
...  
Keyword(s):  
Thin Film ◽  
Methylene Blue ◽  
Removal Efficiency ◽  
Sno2 Thin Film ◽  
Methylene Blue Removal ◽  
Photocatalytic Processes

Simultaneous separation and degradation of methylene blue by a thin film nanocomposite membrane containing TiO2/MWCNTs nanophotocatalyst

2021 ◽  
pp. 1-16
Author(s):  
Roya Farhadi ◽  
Mohammad Ali Aroon ◽  
Azadeh Ebrahimian Pirbazari ◽  
Mahdie Safarpour ◽  
Takeshi Matsuura ◽  
...  
Keyword(s):  
Thin Film ◽  
Methylene Blue ◽  
Nanocomposite Membrane ◽  
Simultaneous Separation ◽  
Thin Film Nanocomposite

scholarly journals Study of photocatalytic activity of TiO2 fluorinated by thermal shock method for the degradation of different dyes

2015 ◽  
Vol 18 (2) ◽  
pp. 121-131
Author(s):  
Khoa Tien Le ◽  
Ngoc Chau Hoang ◽  
Tien Thuy Thai ◽  
Anh Trung Le ◽  
Thinh Nguyen Huu Pham ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Methyl Orange ◽  
Thermal Shock ◽  
Photocatalytic Oxidation ◽  
Organic Dyes ◽  
Cationic Dye ◽  
Solution Ph ◽  
Ph Values ◽  
Methylene Blue Cationic Dye

TiO2 P25 was fluorinated by thermal shock method in order to study the influence of thermal shock fluorination on the surface properties and the photocatalytic activity for the degradation of cationic and anionic organic dyes at different pH values. The surface charge of catalysts was characterized by the pHPZC measurement. The photocatalytic activity of catalysts was evaluated via the degradation of methylene blue (cationic dye) and methyl orange (anionic dye). The results showed that the thermal shock fluorination and the rise of solution pH can increase the surface negative charge of TiO2, which enhanced the adsorption of methylene blue and then improved the photocatalytic degradation of this cationic dye under UV and visible light. On the other hand, after the fluorination, the adsorption of methyl orange on TiO2 was strongly reduced, which limited the photocatalytic oxidation of this anion dye.

scholarly journals Application of Emulsion Liquid Membrane Process for Cationic Dye Extraction

2020 ◽  
Vol 21 (3) ◽  
pp. 39-44
Author(s):  
Manal Adnan Mohammed ◽  
Wasan Omar Noori ◽  
Huda Adil Sabbar
Keyword(s):  
Methylene Blue ◽  
Liquid Membrane ◽  
Agitation Speed ◽  
Blue Dye ◽  
Cationic Dye ◽  
Methylene Blue Dye ◽  
Membrane Process ◽  
Emulsion Liquid Membrane ◽  
H2so4 Concentration ◽  
Dye Extraction

In the present work studies were carried out to extract a cationic dye (Methylene Blue MB) from an aqueous solution using emulsion liquid membrane process (ELM). The organic phase (membrane phase) consists of Span 80 as emulsifier, sulfuric acid solution as stripping agent and hexane as diluent.  In this study, important factors influencing the extraction of methylene blue dye were studied. These factors include H2SO4 concentration in the stripping phase, agitation speed in the dye permeation stage, Initial dye concentration and diluent type.    More than (98%) of Methylene blue dye was extracted at the following conditions: H2SO4 concentration (1.25) M, agitation speed (200) rpm, dye concentration (10) ppm and the diluent type was hexane.

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