p-Toluidine was used as a precursor to synthesize new organic compound [(E)-4-methyl-N1-((E)-4-methyl-6-(p-tolylimino) cyclohex-3-en-1-ylidene)-N2-(p-tolyl) benzene-1,2-diamine] (MBD) by oxidative reaction via potassium dichromate as oxidizing agent at room temperature. Spin coater was used to f...

In this research, performance of different carbon structures including multiwalled carbon nanotubes (MWNT), single walled carbon nanotubes (SWNT), carbon nanofibers (CNF), nano carbon (NC), nanoporous graphene (G) and mesoporous carbon (CMK) was studied as sorbents for removal of 4-chlorophenol ...

Titania doped nanomaterials were prepared by the sol – gel method. Nickel, copper and iron were employed as doping cations. The as-prepared materials were characterized by X-ray diffraction, N2 physisorption and UV–vis DRS, EDS and XPS techniques. The TiO2-doped materials were evaluated during...

A biodegradation facilitator which catalyzes the initial steps of 4-chlorophenol (4-CP) oxidation was prepared by immobilizing multiple enzymes (monooxygenase, CphC-I and dioxygenase, CphA-I) onto a natural inorganic support. The enzymes were obtained via overexpression and purification after cl...

A voltammetric sensor was fabricated for the determination of 2-phenylphenol (2-PP) as a water pollutant. The sensor was prepared by modifying carbon paste electrode (CPE) with a composite of Fe3O4 nanoparticles (Fe3O4-NPs) and ionic liquid (n-hexyl-3-methylimidazolium hexafluorophosphate; (HMPF...

Fulvic acid (FA) in soil ubiquitously affected the long-term benefits of biochars as soil amendments. The sorption of ionizable organic pollutants on biochars was complicated by FA because of the presence of ionic groups. To investigate the effect of FA coating on the interaction between biochar...

The visible-light-responsive inorganic-organic hybrid was prepared by surface modification of commercial TiO2 powder (Degussa P25) with 4-chlorophenol (4-CP). The optical absorption of the hybrid material is red-shifted compared to unmodified TiO2 powder due to the surface charge transfer comple...

We prepared nanoparticles of a microporous Pt catalyst over TiO2 (PtxT, x= 0.2–0.8 wt. %) with exposed (001) facets by sol-gel followed by spray-drying of a Ti(oBu)4-C2H6O and H2PtCl6-H2O mixture. The characterization methods were XRD, FTIR, BET, SEM-EDX/TEM, UV-DRS, Photoluminescence (PL) and ...

Development of new electrode materials is necessary for the fabrication of sensors with low detection limits, high sensitivity and broad concentration range. Beside analytical parameters, the ability to replace rare and expensive metals, without additional pollution, is also expected from new ma...

A novel heterogeneous Fenton-like system (Mg/Fe-O2) which could directly convert oxygen (O2) to hydrogen peroxide/hydroxyl radicals (H2O2/•OH) was developed and used to degrade 4-chlorophenol. The Mg/Fe bimetallic particles were prepared by chemical displacement process and characterized by XRD,...

This work reports a carbon-nanotube amperometric sensor for the selective determination of 4-chloroaniline (4-CLA), the major degradation product found in commercial chlorhexidine solutions. The harmful 4-CLA is detected on a multi-walled carbon nanotube (MWCNT)-modified electrode, free from the...

This paper studies the degradation reactions that 4-chloroaniline can naturally undergo in waters for the action of sun light. 10.00 mg L−1 4-chloroaniline aqueous solution, without any addition of organic solvent, are undergone to photoirradiation under conditions that simulate sun light. The d...

The viability of using a BN nanotube for detection of para-chloroaniline molecule was studied by means of density functional theory calculations. The results indicate that the molecule prefers to be adsorbed on the intrinsic BN nanotube from its N atom, releasing energy of 0.65 eV without signif...

The radiation-induced decomposition of 4-chloroaniline (4-ClA) was studied under steady-state conditions using aqueous solutions saturated with air, pure oxygen, N2O, argon and argon in the presence of t-Butanol. Using HPLC-method, the initial G-values of the substrate degradation as well as of ...

A new strain Delftia tsuruhatensis H1 able to degrade several chloroanilines (CAs) as individual compounds or a mixture was isolated from a CA-degrading mixed bacterial culture. The isolated strain could completely degrade 3-CA and 4-CA as growth substrates, while concurrently metabolize 2-CA by...

A high-rate degradation of 4-chloroaniline (4-ClA) was achieved by developing mixed-culture microbial granules under aerobic conditions in a sequencing airlift bioreactor (SABR). An essential step in this process was the enrichment of the biomass with improved setting characteristics and high 4-...

Infrared spectroscopy (ATR FT-IR), X-ray fluorescence (WDXRF), and X-ray powder diffraction (XRPD) methods were used to investigate the structure and composition of halloysite mineral. On the basis of the results, we found that the chemical composition of Hal samples is typical as regards clay m...

Arylamine N-acetyltransferase 1 (NAT1) and 2 (NAT2) catalyze the acetylation of arylamine carcinogens. Single nucleotide polymorphisms in the NAT2 coding exon present in NAT2 haplotypes encode allozymes with reduced N-acetyltransferase activity towards the N-acetylation of arylamine carcinogens ...

Novel hybrid exchanger poly-o-toluidine zirconium(IV) phosphotellurite was synthesized and physico-chemical properties of the material were well studied by FTIR, XRD, TGA, SEM-EDX and TEM analysis. The composite exchanger showed good ion exchange capacity and excellent removal potential towards ...

The aim of this study was to investigate the ability of rhizospheric isolates of Jatropha curcas to degrade Dichlorobenzene (DCB) in addition to their plant growth promotion activity, for effective rhizoremediation. DCB degrading rhizobacteria were isolated from Jatropha curcas rhizosphere and e...