Yellow dye (YD) adsorption was carried out on some mesoporous materials such as calcined and uncalcined Al-MCM-41. These two matrices were synthesized by variation of Si/Al molar ratio (20, 40 and 80) under thermal conditions. The obtained materials were characterized by various methods: XRD dif...

This paper describes the dyeing of natural and man-made fibres, in supercritical carbon dioxide, with C.I. Disperse Yellow 23 modified with 2-bromoacrylic acid and 1,3,5-trichloro-2,4,6-triazine as reactive groups. Cotton was dyed using these reactive disperse dyes without any pre-treatment of t...

C.I. Pigment Yellow 13 was rosinated with abietic acid and the abietic acid derivative, Staybelite, at up to 40% loading. The crude pigment, recrystallised pigment and rosin coated pigment preparations were examined by solid-state NMR spectroscopy and by powder X-ray diffraction. The primary eff...

5-Amino-4-arylazo-3-methyl-1H-pyrazoles (3a-l) have been diazotised and coupled with 4-hydroxycoumarin to give rise to the coumarin-based disperse disazo dyes (3a-l). The newly synthesized twelve coumarin-based disperse disazo dyes have been characterized by using the elemental analysis and the ...

5-amino-4-arylazo-3-methyl-1-phenylpyrazoles (2a–k) were diazotised and coupled with 5-hydroxy-3-methyl-1H-pyrazole and 5-hydroxy-3-methyl-1-phenylpyrazole to generate two series disazo pyrazole disperse dyes (3a–k and 4a–k). These novel synthesized disazo pyrazole disperse dyes were characte...

Appropriate dispersion of cocatalyst on semiconductor for improving photocatalytic H2 production efficiency is a challenging work in semiconductor photocatalysis. Herein, we constructed the noble-metal-free CoSx modified tubular sulfur doped carbon nitride (SCN) photocatalysts by chemical precip...

Detrital minerals in sediments can provide insight into sedimentary provenance and depositional environments. Here we report a record of heavy minerals of a 300.1 m long core recovered from the western south Yellow Sea, which was dated back to the late Pliocene (~3.5 Ma). Results of detrital min...

Polyaniline (PANI)-doped tin oxide-diatomite hybrid photocatalysts were synthesized by the adding of tin source and diatomite silica support to prepared PANI solution via chemical oxidative polymerization of aniline monomer. The obtained catalysts were characterized with X-Ray diffraction (XRD),...

Bioremediation is one of the milestones achieved by the biotechnological innovations. It is generating superior results in waste management such as removal of textile dyes, which are considered xenobiotic compounds and recalcitrant to biodegradation. In the present bioremedial approach, Brevibac...

The dyeing of polyester fabric with CI Disperse Yellow 54 has been carried out in the presence of ammonium persulphate. The oxidant markedly reduces the pH of the dyebath, necessitating the use of a buffer of strong buffer capacity. FTIR attenuated total reflectance (ATR) spectroscopy has been u...

A new class of magnetic ionic liquid (MIL) containing paramagnetic cations has been applied for in situ dispersive liquid-liquid microextraction in the determination of both polar and non-polar pollutants, including ultraviolet filters, polycyclic aromatic hydrocarbons, alkylphenols, a plasticiz...

Sulfite is known to be harmful to human health and associated to sulfur related environmental effects and ideally should be analyzed onsite owing to its instability. Here we describe an automated, miniaturized, and highly efficient dispersive liquid-liquid microextraction (DLLME) system that sea...

A novel electrochemiluminescence (ECL) system that consists of the copper sulphide (CuS) film and K2S2O8 was prepared and used for detecting crystal violet in aqueous solutions. The CuS film was a luminescent semiconductor material, which was modified on glassy carbon electrode (GCE) via one-ste...

Carbon nanotubes (CNTs) have high strength, stiffness, durability, electrical and thermal conductivity, and most notably are of lighter weight when compared to advanced composite materials. It is the purpose of this investigation to determine the possible detrimental effects on the mechanical pr...

In this study, CNCs-TiO2 heterojunctions were synthesized successfully via a two-step method. The obtained materials were systematically characterized by a series of technologies including XRD, TEM, HRTEM, FT-IR, XPS, UV-DRS, PL and EIS. Moreover, the photocatalytic activity of CNCs-TiO2 was eva...

Sinusoidal surface-relief gratings (SRGs) formed by microphase separated photoresponsive poly(dimethylsiloxane)-block-poly(methyl acrylate-co-disperse red 1 acrylate) (PDMS-b-P(MA-co-DR1A)) chains are investigated. Different PDMS-b-P(MA-co-DR1A) were prepared by a multi-step synthetic approach w...

Modified polyethylene terephthalate polymers (MPETs), as a novel dispersing agent, were successfully prepared from polyethylene terephthalate (PET (flakes of empty bottles in order to recycle waste from one particularly abundance packaging material. Different techniques were used to characterize...

A hybrid three-dimensional network structure was composed by the electrostatic-driven self-assembly via sol-gel method, which contained antimony-doped tin oxide (ATO) particles and graphene oxide aerogel (GOA). Absorbing and scattering near-infrared light composite of reduced graphene oxide aero...

Despite development of a record number of recreational sites and industrial zones on the Red Sea coast in the last decade, antibiotic-resistant bacteria in this environment remain largely unexplored. In this study, 16S rDNA sequencing was used to identify bacteria isolated from 12 sediment sampl...

To understand the concentration and amount of Fukushima-derived Cs-137 in the ocean, this study simulated the oceanic dispersion of Cs-137 by atmospheric and oceanic dispersion simulations. The oceanic dispersion simulations were carried out with an oceanic dispersion model and multiple oceanic ...