In the present study, we focused on improvement of photonic efficiency of rutile-type TiO2 by cobalt doping, various amounts of silver deposition and decorating on multi walled carbon nanotubes (MWCNTs) (AgCoTC samples). X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), field ...

The performance of a hydrolysis acidification + anoxic/aerobic activated sludge (HA+A/O) process under the load shock of 2,4-dichlorophenol (2,4-DCP) was investigated. Results indicated that 2,4-DCP concentration was below 100 mg/L responding to less than 50 mg/L chemical oxygen demand (COD) of ...

In this study, organic-inorganic nanocomposite including mesoporous silica SBA-15 and chitosan was combined using carboxyl-functionalized ionic liquid as the bridging agent (SBA-CIL-CS), and which was characterized by scanning electron microscope, Fourier transform infrared spectroscopy, thermog...

Recently, increasing attention has been paid to the activated peroxymonocarbonate (APMC) process, because it is envisioned to be engineered for the chemical oxidation remediation of groundwater in karstic regions with elevated levels of naturally occurring bicarbonate. In the present study, we e...

Two membrane bioreactors (toxic MBR and blank MBR) were established and compared to treat high ammonia wastewater in the presence and absence of 2,4-dichlorophenol (2,4-DCP). After 130 days operation, both MBRs expressed NH4+-N removal efficiency (>95%) and 2,4-DCP removal efficiency was (96.47 ...

Herein, with the exploitation of iron and nickel electrodes, the 2,4-dichlorophenol (2,4-DCP) dechlorinating processes at the anode and cathode, respectively, were separately studied via various electrochemical techniques (e.g., Tafel polarization, linear polarization, electrochemical impedance ...

In order to investigate contributions of cellulose (CEL), hemicellulose (HEM), lignin (LIG) to the sorption capacity of biochar derived from lignocellulose, the individual component and their artificially modeled biomass mixture (C-H-L) were pyrolyzed under oxygen-limited condition at various py...

Unusual regiochemistry is observed in the products arising from the reaction of lithiated 1,2,4-trichlorobenzene with N,N-dimethylformamide and tetraalkyloxamides.

Catalytic hydrodechlorination (HDC) is an efficient way to remove chloride species from chlorinated hydrocarbons. Hydrodechlorination reaction of 1,2,4-trichlorobenzene was studied over a series of palladium (1 wt.%) catalysts supported on calcined Mg/Al hydrotalcite-like materials (HT) prepared...

A micrometer-sized, nanostructured, flower-like Co3O4–CeO2 composite oxide was synthesized by an ethylene-glycol-mediated process. The composite oxide was an assembly of polycrystalline nanoparticles, with a typical mesoporous structure. The composite's catalytic activity in 1,2,4-trichlor...

In laboratory experiments the mineralisation of 14C-labelled 1,2,4-trichlorobenzene (1,2,4-TCB) in soils was studied by direct measurement of the evolved 14CO2. The degradation capacity of the indigenous microbial population was investigated in an agricultural soil and in a soil from a contamina...

1,2,4-Trichlorobenzene (1,2,4-TCB) and tetrachloroethene (PCE) were chosen to study their competitive effect on 1,2,4,5-tetrachlorobenzene (1,2,4,5-TeCB) sorption by three soils/sediments from South China with different fractions of natural organic matter (NOM) employing a batch technique. Resul...

The natural attenuation of 1,2,4-trichlorobenzene (1,2,4-TCB) in shallow aquifer was investigated at the Luhuagang's landfill site (LLS), where the subsoil and shallow aquifer have been contaminated by certain chemicals owning to a lack of protective structures and leachate collection syste...

Co3O4 was synthesized with cabbage-like, plate-like and sphere-like morphologies. The effect of different morphologies on the degradation of 1,2,4-trichlorobenzene (1,2,4-TrCB) was evaluated, and the cabbage-like Co3O4 exhibited the highest reactivity. The degradation of 1,2,4-TrCB on the cabbag...

The chemical stability and hydrophobic nature of chloroarenes make them a persistent environmental hazard. Modeling of 1,2,4-trichlorobenzene (1,2,4-TCB) degradation in alcohol-water solution under UV irradiation was carried out with the aim of probing how the 1,2,4-TCB might behave in the envir...

A home-made analytical instrument based on thermal desorption gas chromatography coupled to resonance enhanced multiphoton ionization time-of-flight mass spectrometry (TD-GC-REMPI-TOFMS) was applied for atline measurement of 1,2,4-trichlorobenzene for the prediction of polychlorinated dibenzodio...

The present study aims at fabricating a laccase based amperometric biosensor for detection of pyrocatechol in environmental samples. Trametes versicolor laccase was co-immobilized in a nanocomposite matrix comprising of osmium tetroxide on poly 4-vinylpyridine, multiwalled carbon nanotubes, Nafi...

A ‘cap and dip’ method of adsorbing ruthenium di-2,2′-bipyridyl-4,4′-dicarboxylic acid diisocyanate (N3 dye) on a rutile TiO2 (110) surface was investigated using pyrocatechol as a capping molecule. This method involves cleaning the rutile surface in ultra-high vacuum (UHV), depositing pyroc...

Boron isotopic separation was investigated experimentally and theoretically on boron-specific adsorbent, namely pyrocatechol-modified resin (CL-RESIN). The static adsorption results with initial boron concentration of 8.648 g L−1 at 25 °C were well fitted by the pseudo-second-order kinetic mode...

Owing to broad applications of boron products in many industries, boron waste pollutes the groundwater and leads to a chain of environment and health problems. In this research, a new kind of chelating resins with pyrocatechol functional group was developed, which could be used in various condit...