This study investigated the electrochemical degradation of C.I. Reactive Red 195 (RR195) in aqueous solution on a Ti/SnO2–Sb/PbO2 electrode. The influence of operating variables on the mineralization efficiency was studied as a function of the current density, the initial pH, the initial concen...

The nickel oxide nanoparticles-modified diatomite (NONMD) as a low-cost adsorbent was investigated for the removal of C.I. Basic Red 46 (BR46) from aqueous solution. Various physico-chemical parameters were studied such as solution pH, adsorbent dosage, adsorbent size, initial dye concentration,...

Pararosaniline (C.I. Basic Red 9) is an important dye used in biological and chemical assays, suspected of being carcinogenic. Thus, the environmental and occupational issues related to it are very important. This study aims at investigating the chemical oxidation of pararosaniline dye by ozonat...

The adsorption of C.I. Mordant Red 3 on the surface of silica both unmodified and modified with N-2-(aminoethyl)-3-aminopropyltrimethoxysilane was studied. The efficiency of C.I. Mordant Red 3 adsorption on silica and the adsorptive properties of inorganic support were characterised. The particl...

The removal of C.I. Basic Red 46 (BR 46) was investigated with anaerobic mixed culture using glucose (3000 mg l−1 COD) as carbon source and electron donor. Zero-, first- and second-order reaction kinetics were used to find out the suitable substrate removal and decolorization kinetics. The subst...

The formation of the inclusion complexation between C.I. Basic Red 5 and two types of negatively charged host molecules, namely 4-sulfonatocalix[4]arene and carboxymethyl-β-cyclodextrin, was studied using fluorescence, UV–visible absorption and nuclear magnetic resonance spectroscopy. Differen...

Modified C.I. Pigment Red 170 with a core-shell structure was prepared by using the surface-modified silica fume with silane coupling agent as the inorganic addition in the preparation process of organic pigment. The grafting of silane coupling agent on the surface of silica fume was determined ...

A series of forty two N-(1,3-diaryl-3-oxopropyl)amides were synthesized via an efficient, modified Dakin–West reaction and were evaluated for in vitro xanthine oxidase inhibitory activity for the first time. Structure–activity relationship analyses have been presented. Selected active xanthine...

The self-assembly behavior, spectroscopic properties and stability of C.I. Basic Violet 10 (Rhodamine B) were investigated at a relatively high concentration. Rod-like dye nanocrystals could be formed by tuning various THF/H2O volume ratios, leading to increased fluorescence intensity. TEM, zeta...

This study adopted O3, UV/TiO2/O3, O3/Mn(II) and O3/MnO2 systems to assess the decolorization efficiency of C.I. Reactive Red 2 (RR2). The decolorization rate increased with concentrations of Mn(II) and MnO2 in the ranges 0.05–0.1 and 0.05–0.8 g/l, respectively. However, when 0.5–3 g/l TiO2 w...

Serum albumin-toxic dye interaction studies will be of paramount importance in the field of toxicology due to its relation towards the distribution and transportation of dye in blood. In this regard, the binding between C.I. Acid Red 88 (AR88) and serum albumins (HSA and BSA) was investigated by...

The dyeing of acrylic fabrics using C.I. Astrazon Basic Red 5BL 200% has been studied with both conventional and ultrasonic techniques. The effect of dye concentration, dye bath pH, ultrasonic power, dyeing time and temperature were studied and the resulting shades obtained by dyeing with both t...

Red mud was investigated in triglyceride transesterification with a view to determine its viability as a basic catalyst for use in biodiesel synthesis. The effect of calcination temperature on the structure and activity of red mud catalysts was investigated. It was found that highly active catal...

Neutron noise spectra in nuclear reactors are a convolution of multiple induced reactivities. Under normal IBR-2M reactor operating conditions the full noise range can reach ±22% with respect to average power. Slow changes in average power (induced for instance by the control rods) are thereby ...

Models play an important role in inverse problems, serving as the prior for representing the original signal to be recovered. REgularization by Denoising (RED) is a recently introduced general framework for constructing such priors using state-of-the-art denoising algorithms. Using RED, solving ...

The spectral emissivity of basic copper carbonate (Cu2(OH)2CO3) was measured by a Fourier Transform Infrared (FTIR) spectrometer in the wavelength range of 5–20 μm during the heating process, and the integral emissivity was calculated to study the effect of decomposition on emissivity. The sur...

In this contribution, the toxicological effects of C.I. Acid Red 2 and 1-(2-pyridylazo)-2-naphthol (PAN) have been elucidated by utilizing plasma albumin as a biological model. Fluorescence data indicated that the Trp-214 residue was quenched by both azo compounds, but the quenching degree of C....

A simulated wastewater containing the monoazo dye C.I. Acid Orange 7 was electrolytically treated using a three-dimensional electrode reactor equipped with granular activated carbon as particle electrode. The activated carbon fiber cathode was more effective than either a graphite or a stainless...

The combination of 20 kHz ultrasound and ozone for the degradation of C.I. Acid Orange 7 was studied. The effect of power density, gas flow rate, initial pH, hydroxyl radical scavenger, and initial dye concentration on the decolorization of C.I. Acid Orange 7 was investigated. The decolorization...

Novel environmentally friendly inorganic orange pigments based on the hexagonal perovskite-type pigment Sr4Mn2(Cu1-xZnx)O9 (0 ≤ x ≤ 1) were synthesized and their optical and color properties were determined. Using Zn2+ doping (x = 0.5), the optical absorption caused by a ligand-metal charge tr...