The low density polyethylene-chitosan nanoparticles (LDPE/CHNP) biocomposite was applied as a biosorbent for the adsorption of Congo red (CR) anionic dye and methyl (MR) cationic an in single binary system. effect parameter pH, contact time, initial concentration, adsorbent dosage temperature were studied on two dyes component Kinetic studies showed that LDPE/CHNP binary-component system follow...

DFT reactivity descriptors, the ultraviolet–visible spectra and hydrolysis mechanism of three cationic dyes [Malachite Green (MG), Brilliant (BG) Ethyl (EG)] are performed with several exchange–correlation functional (global GGA, hybrids range-separated). Using time-dependent density theory, theoretical absorption obtained obey trend for λmax: GGA > hybrid range-separated functional. Thanks to ...

Hollow silica microcoils have been prepared by using functionalized carbon microcoils as hard templates and surfactant or amphiphilic dye aggregates as soft templates. The obtained materials have been characterized by electron and optical microscopy, nitrogen sorption and small angle X-ray scattering. The obtained hollow microcoils resemble the original hard templates in shape and size. Moreove...

This research converts agricultural waste Longan (Dimocarpus longan) Peel is used in the adsorption process to reduce cationic dyes rhodamine-B and malachite green contaminants from aqueous solution. was characterized by FT-IR, analysis XRD, SEM, BET, TG-DTA. The characterization results show that contains cellulose compounds has a specific surface area 17.175 m2/g, with this potential as bio a...

Abstract A chemical modification of cotton fabrics by 2-diethylaminoethyl chloride (DEAE-Cl) was achieved, and the resulted demonstrated salt-free dyeing properties with anionic dyes. Nucleophilic property hydroxyl groups in cellulose enhanced under alkaline conditions could react DEAE-Cl, a possessing both nucleophilic electrophilic sites. The monolayered DEAE-grafted further DEAE-Cl to form m...

The release of dyes used in the textile industry into natural environment causes unwanted negative effects due to carcinogenic, mutagenic or even teratogenic properties dyes. Based on their chemical composition, are divided anionic, cationic and non-ionic In this work, physical method wastewater treatment – adsorption was studied. This is a which various substances called sorbents used. Materia...

Azo dyes are widely spread in our day life, being heavily used cosmetics, healthcare products, textile industries, and as artificial food colorants. This intense industrial activity, which inherently includes their own production, inexorably leads to uncontrolled release of into the environment. As emerging pollutants, detection, particularly water systems, is a priority. Herein, fluorescence-b...

As an eco-friendly material, Zn-adeninate bio-metal-organic framework (bio-MOF) was investigated as efficient adsorbent for both anionic and cationic dyes. The adsorption capability of the synthesized bio-MOF confirmed by its notable surface area 52.62 m2 g−1 total pore volume 0.183 cm3 g−1. profiles direct red 81 (DR-81) methylene blue (MB) dyes were under different operating parameters. optim...