Arsenic (As) is the world's most hazardous chemical found in drinking water of many countries; therefore, there an urgent need for development low-cost adsorbents its removal. Here, we report a highly versatile and synthetic route preparation three-dimensional (3D) graphene–iron oxide nanoparticle aerogel composite efficient removal As from contaminated water. This unique interconnected network was prepared natural graphite rocks with simple reaction, without use harsh chemicals, which...

In this study, we explore for the first time capabilities of nanoporous anodic alumina gradient-index filters (NAA-GIFs) functionalized with titanium dioxide (TiO2) photoactive layers to enhance photon-to-electron conversion rates and improve efficiency photocatalytic reactions by "slow photon" effect. A set NAA-GIFs was fabricated sinusoidal pulse anodization, in which a systematic modification various anodization parameters (i.e., pore widening time, period, time) enables fine-tuning...

Pharmaceuticals, which are designed to be biologically active at low concentrations, found in surface waters, meaning aquatic organisms can exposed complex mixtures of pharmaceuticals. In this study, the adverse effects four pharmaceuticals, 17α-ethynylestradiol (synthetic estrogen), methotrexate (anticancer drug), diclofenac (nonsteroidal anti-inflammatory drug) and fluoxetine (antidepressant), their binary mg/L concentrations were assessed using 7-day Lemna minor test, with both apical...

A comprehensive study on the engineering of titanium dioxide-functionalized nanoporous anodic alumina distributed Bragg reflectors (TiO2–NAA-DBRs) for photocatalysis enhanced by “slow photon” effect is presented. The photocatalytic performance these composite photonic crystals (PCs) assessed monitoring photodegradation a variety organic molecules with absorbance bands across spectral regions. This demonstrates that TiO2–NAA-DBRs when edges PC’s stopband (PSB) fall within band molecules....

The determination of Cu by anodic stripping voltammetry using a Nafion-modified glassy carbon electrode incorporated with Cu-DPABA complex (Cu-DPABA–NA/GCE) was described. accumulated in acetic buffer pH 4 at potential -1.4 V (vs. Ag/AgCl ref. electrode) and then determined DPASV. Under the optimum conditions calibration curve linear range 7.0 x 10-9 – 5.0 10-5 mol/L. detection limit 3.0 x10-9 Different parameters conditions, such as membrane ingredients, accumulation time value optimized. A...

The unique physical and chemical properties of graphene-based nanomaterials (GNMs) have inspired a diverse range scientific industrial applications. market value GNMs is predicted to reach $US 1.3 billion by 2023. Common many nanomaterials, an important unresolved question the environmental consequences increases in use. current deficiencies studies reporting ecotoxicology data for include differences analytical methodologies quantification, no standardized test guidelines, morphology GNMs,...

This study explores the potential of gold-coated titania-functionalized nanoporous anodic alumina distributed Bragg reflectors (Au-TiO₂-NAA-DBRs) as platforms to enhance photocatalytic reactions by integrating “slow photons” and surface plasmon resonance (SPR).

Photocatalysis comprises a variety of light-driven processes in which solar energy is converted into green chemical to drive reactions such as water splitting for hydrogen generation, degradation environmental pollutants, CO2 reduction and NH3 production. Electrochemically engineered nanoporous materials are attractive photocatalyst platforms plethora applications due their large effective surface area, highly controllable tuneable light-harvesting capabilities, efficient charge carrier...

In this work, CeBTC (a cerium(III) 1,3,5-benzene-tricarboxylate), was used as a precursor for obtaining CeO2 nanoparticles (nanoceria) with better sensor performances than synthesized by the solvothermal method. Metal–organic framework-derived nanoceria (MOFdNC) were functionalized spheric gold (AuNPs) to further improve non-enzymatic electrode material highly sensitive detection of prominent biocompound uric acid (UA) at modified carbon paste (MOFdNC/AuNPs&CPE). X-ray powder diffraction...

Inorganic salts improve the coloration of textiles, which increase pollution load on dyehouse effluent in general. Decolorization reactive textile dye C.I. Reactive Black 5 was studied using Advanced Oxidation Processes (AOPs) a non-thermal plasma reactor, based coaxial water falling film Dielectric Barrier Discharge (DBD). Initial concentration solution 40.0 mg L-1. The effects addition inorganic salt different high concentrations (NaCl, Na2SO4 and Na2CO3) degree decolorization were...

Microwave-hydrothermal method was used for the synthesis of TiO2 and doped with zirconium. The fast simple adsorbents were removal As(III) As(V) from aqueous solutions. characterized by BET surface area measurements powder XRD. Experiments showed that 10% Zr using microwave-hydrothermal have greater specific total pore volume in comparison synthesized same method. Better adsorbent obtained both, As(V). Further experiments carried out sorbent order to examine kinetic adsorption, influence pH...

A platform material composed of 2D gold (Au) nanodot plasmonic single-lattices (Au-nD-PSLs) featuring tailor-engineered geometric features for visible-NIR light-driven enhanced photocatalysis is presented.

Fourteen metals and metalloids were determined in Conyza canadensis L. harvested from the fly ash landfill of thermoelectric power plant ?Kolubara? (Serbia). Fly samples collected together with subjected to sequential extraction according three-step scheme proposed by Community Bureau Reference (BCR; now Standards, Measurements Testing Program). The contents inductively coupled plasma optical emission spectrometry (ICP-OES) root aboveground part correlated their samples. bioconcentration...

Despite the rapid advances in process analytical technology, assessment of protein refolding efficiency has largely relied on off-line protein-specific assays and/or chromatographic procedures such as reversed-phase high-performance liquid chromatography and size exclusion chromatography. Due to inherent time gap pertaining traditional methods, exploring optimum conditions for many recombinant proteins, often expressed insoluble inclusion bodies, proven challenging. The present study...

The application of various electrodes for in situ degradation Reactive Yellow 125 (RY125) and Green 15 (RG15) dyes, as well ecotoxicity screening test their products were studied this paper.The process was performed a two-electrode cylindrical cell, with Fisher platinum electrode anode Pd, Zr, or C cathode; 0.1 M Na 2 SO 4 supporting electrolyte.The optimal conditions (voltage pH value) determined platinum-palladium (Pt-Pd) model system 200 mg/L both reactive dyes.Then the electrolysis other...

The aim of this study was to investigate the degradation non‐ionic surfactant Triton X‐100 (TX‐100) by using an advanced oxidation process in a non‐thermal plasma reactor based on water falling film dielectric barrier discharge (DBD). effects two catalytic systems, Fe 2+ /DBD and H 2 O /DBD, were tested improve TX‐100 mineralization efficiency DBD reactor. Both systems exhibited significant improvements efficiency, especially beginning treatment: increased from 23 88 50%, for 5 mg L −1 10...

Two anionic surfactants (sodium lauryl sulfate - SDS and sodium dodecylbenzenesulfonate SDBS) were treated with dielectric barrier discharge. Loss of surfactant activity, decrease chemical oxygen demand total organic carbon as well lower toxicity degradation products determined. Effects catalysts hydrogen peroxide iron (II), on parameters mentioned above, Catalysts affect the SDBS in case have no effect degradation. Both induce COD TOC values. Toxicity solutions after plasma treatment is all...

Electrochemical treatment is a new trend for the purification of textile industry wastewater which containing azo dyes. In this paper electrochemical was used decolorization dye Reactive Blue 52. The efficiency compared different systems were all equipped with Fisher platinum electrode as anode and cathode (Zr, Pd, C) in sodium sulfate supporting electrolyte. order to find optimal conditions influence various voltage pH values initial solution studied. Decolorization rate monitored by...