Showing papers in "Chemical Engineering Journal in 2012"

TL;DR: In this article, an agricultural wasteorange peel powder (OPP) was successfully modified into a novel magnetic nano-adsorbent (MNP) by co-precipitating it with Fe3O4 nanoparticles for cadmium ion removal from aqueous solutions.

TL;DR: In this paper, a detailed review of previous researches on the inhibition of Anammox processes is presented, where the effect of inhibitory substances, such as substrates (ammonia and nitrite), organic matter (nontoxic organic matter and toxic organic matter), salts, heavy metals, phosphate and sulfide, are commonly present in the practical applications.

TL;DR: A contemporary review and analysis of the manufacture of ZnO, and its properties, applications, and future prospects can be found in this paper, where the authors provide a survey of the processes used to produce the oxide.

TL;DR: In this article, the effects of pH, contact time, initial concentration of adsorbate and temperature on adsorption of activated carbon were investigated, and the results showed that both Langmuir and Freundlich models fitted the data reasonably but the Langmuirusorption isotherm model fitted better in the temperature range studied.

TL;DR: In this paper, the effect of H2O2 treatment on hydrothermally produced biochar (hydrochar) from peanut hull to remove aqueous heavy metals was examined.

TL;DR: In this article, the effects of several experimental parameters have been investigated using the batch adsorption technique at different temperature and modelled with the Langmuir and Freundlich isotherms.

TL;DR: In this paper, the synthesis of magnetic Fe3O4@graphene composite (FGC) and utilization in dye removal from aqueous media were investigated by the structural, surface, and magnetic characteristics of the nanosized composite.

TL;DR: In this article, a new synthesis was developed to create highly porous nanocomposite material consisting of MgO nano-flakes within a biochar matrix that has high sorption ability for ionic contaminations.

TL;DR: In this paper, the effect of initial Cr(VI) concentration, amount of adsorbent, solution temperature, dolomite particle size and shaking speed on the performance of batch adsorption was studied.

TL;DR: In this article, the performance of Fenton, electro-Fenton, sono-electro-fenton, and photo-electronfenton treatment methods on the degradation of phenol was compared with the results obtained with simultaneous utilization of UV irradiation and electrolysis with Fenton's reagent.

TL;DR: In this paper, the authors studied how the key operational parameters: contact time, dye concentration, bentonite dosage, pH and temperature could affect the adsorption performance for the removal of Congo red (CR).

TL;DR: In this article, the effect of pH and temperature on the drugs uptake by the adsorbent was also investigated and the results indicated that the adsorption process followed the pseudo-second-order kinetic model for the four tested drugs.

TL;DR: In this paper, single-layered graphene oxide (GO) prepared by the Hummers method was used to adsorb U(VI) ions from aqueous solutions, and it was found that the sorption is rapid, strongly dependent on pH, attaining a plateau at pH 4.0-7.5, and independent of the ionic strength.

TL;DR: In this article, a ZnO-reduced graphene oxide (RGO) composites are successfully synthesized via UV assisted photocat-alytic reduction of graphite oxide by ZnOs nanoparticles in ethanol.

TL;DR: In this article, the sulfamethazine (SMT) degradation exhibited a pseudo-first-order reaction pattern, and the degradation rate was influenced by the S2O82- dose and solution pH.

TL;DR: In this article, the adsorption of reactive dyes on modified zeolite (HMDA-Z) was investigated by batch adaption experiments and the effects of pH, temperature, sorbent dosage and initial dyes concentrations were investigated.

TL;DR: In this paper, the authors reviewed the use of liquid antisolvent (LAS) for precipitation and stabilization of ultra-fine particles of poorly water soluble drugs, focusing on the strategies for controlling particle size, size distribution, and stabilisation of ultrafine particles using polymers and surfactants.

TL;DR: In this article, the authors used polypyrrole-polyaniline (PPy-PANI) nanofibers as adsorbent of Cr(VI) and showed that the adsorption process is spontaneous, endothermic and marked with an increase in randomness at the solid-liquid interface.

TL;DR: The composite photocatalyst g-C 3 N 4 /ZnO was synthesized by heat treatment of the precursor obtained via the deposition-precipitation method as mentioned in this paper.

TL;DR: In this article, an adsorbent (H-KFC) was prepared from kenaf fiber char by acid treatment using HCl (3.M), which caused an increase in the BET surface area and as a result there was an increase of the adsorption of Methylene blue dye (MB) in batch system studies.

TL;DR: Amine-functionalized mesoporous Fe3O4 nanoparticles were developed for the highly efficient removal of toxic heavy metal ions from water as discussed by the authors, which can be simply recovered from water with magnetic separations at low magnetic field within 1min.

TL;DR: In this article, the effect of various inorganic additives on maintaining high reaction stoichiometric efficiency (RSE) and SPS activation was investigated in a phosphate buffer solution at pH 7.0 and different temperatures.

TL;DR: In this paper, the reactivity of aniline-based pharmaceuticals with sulfate radical anion generated by the peroxymonosulfate (PMS)/Cobalt(II) system and by taking sulfamethoxazole and diclofenac as probe compounds was investigated.

TL;DR: In this article, a simple chemical etching method using acetic acid and KI as etching agents to react with BiOI particles, were characterized by X-ray powder diffraction (XRD), UV-vis diffuse reflectance spectra (UV-vis DRS), scanning electron microscope (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscope(HRTEM) and Brunauer-Emmett-Teller (BET) surface area.

TL;DR: In this article, a graphite oxide was modified with Fe 3 O 4 and MnO 2 nanoparticles by a two-step co-precipitation reaction for removing As (III) and As (V) in water.

TL;DR: In this paper, a self-assembled cylindrical graphene-carbon nanotube (G-CNT) hybrid was used to remove methylene blue (MB) from aqueous solution.

TL;DR: In this paper, the photocatalytic activity of the catalysts was studied by degradation of aqueous methyl violet (MV) and malachite green (MG) under solar light.

TL;DR: In this article, the fundamental aspects of preparation, characterization, and application of hybrid materials in coagulation/flocculation of wastewater are discussed in terms of chemical, physical, thermal, morphological as well as structural characteristics.

TL;DR: In this paper, the photocatalytic activity, the amounts adsorbed of CO 2 and the visible light absorption capability of Bi 2 S 3 -modified TNTs photocatalyst are all better than those of CdS-modified TNTs.

TL;DR: In this article, the adsorption capacity of different MFe2O4 (Mn, Fe, Co, Ni) ferrite nanocrystals synthesized by hydrothermal method for Congo red (CR).