ABSTRACT Membrane technology is increasingly becoming a solution in wastewater treatment from textiles and dyeing, however, it has continuing challenge on membrane fouling. In this study, we developed series of hybrid activated clay (AC)/hydroxyapatite (HA)‐polyvinyl alcohol (PVA) composite membranes for fouling control during the removal methylene blue (MB) dye simulated wastewater. AC HA, known their dye‐sorption capabilities, were prepared various ratios incorporated as fillers PVA to...

This paper reports the degradation of indigo carmine and eosin Y dyes in water, catalyzed by cobalt multiwalled carbon nanotube modified zirconium oxide nanocomposite (Co-ZrO2-MWCNTs) under simulated visible light. The bare ZrO2, ZrO2-MWCNTs, Co-ZrO2 Co-ZrO2-MWCNTs with different percentage compositions were synthesized homogeneous co-precipitation method. Characterization prepared nanocomposites was carried out using X-Ray powder Diffraction (XRD), Fourier Transformer Infrared (FTIR)...

Organic contaminants pose a grave danger to both the surroundings and public health, which emphasizes urgent need for efficient decomposition techniques. Building composite adding cocatalyst can enhance transfer of photogenerated electrons, are useful strategies increase photocatalytic efficiency. This study sought synthesize cerium–doped ZnO–rGO nanoparticles with varying concentrations Ce visible–light degradation bromothymol blue dye in water. The synthesized photocatalysts were...

In this study, La-doped ZrO2/g-C3N4 nanocomposites were synthesized and remarkably, 0.8% exhibited an outstanding degradation efficiency of 87% (k = 11.301 × 10−3 min−1). The enhanced photocatalytic performance is due to the synergistic effects lanthanum g-C3N4, which promote charge separation increase number active sites. A built-in electric field exists according density difference electrostatic potential results. At 300 K, nanocomposite thermally, energetically, dynamically stable. Our...

In this study, sixty-two (62) skin-lightening creams and soaps were analysed for total mercury hydroquinone levels. Total was determined by the Cold Vapour Atomic Absorption Spectrophotometry using an automatic analyser High Performance Liquid Chromatography. The mean concentration of in skin toning cosmetic 0.098 ± 0.082 0.152 0.126 μg/g, respectively. 0.243 0.385 0.035 0.021 % soaps, All had levels below US Food Drug Administration's acceptable limit 1 μg/g 2 %, low study therefore do not...

The exploration into biopolymer applications in recent times is fast growing and extensive. various currently depict how far biopolymers are breaking barriers surmounting all drawbacks to replace the synthetic polymers obtained from petroleum-based materials. merit this relevance can be attributed their excellent properties flexibility modifications through different methods. additives incorporated during processing virtually convert more versatile dynamic materials that leverage widen drug...

In this work, a clay sample from Teleku Bukazo in the Western Region of Ghana was activated by an acid activation process and material used for adsorbing methylene blue wastewater. Zeta potential, scanning electron microscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy, analysis were to characterize material. To ascertain impact temperature, pH, contact time, starting concentration, adsorbent dosage on adsorbent, kinetic thermodynamic experiments conducted. The...

Infants remain a high-risk group as far exposure to toxic metals is concerned. The levels of lead (Pb), cadmium (Cd), nickel (Ni), chromium (Cr), antimony (Sb), mercury (Hg), and arsenic (As) in twenty-two (22) samples baby foods formulas were determined using inductively coupled plasma mass spectrometry. concentrations (mg/kg) As, Cd, Cr, Hg, Mn, Ni, Pb, Sb the ranges 0.006–0.057, 0.043–0.064, 0.113–0.33, 0.000–0.002, 1.720–3.568, 0.065–0.183, 0.061–0.368 0.017–0.1 respectively. Health risk...

Abstract The bandgap of most known two‐dimensional materials can be tuned by hydrogenation, although certain 2D lack a sufficient wide bandgap. Currently, it would perfect to design non‐toxic, low‐cost, and high‐performance photocatalysts for photocatalytic water splitting via hydrogenation. We systematically examine the impact hydrogenation on optical electronic characteristics GeC/g‐C 3 N 4 vdW heterostructures (vdWHs) with four different stacking patterns using first‐principles...

The ability of photocatalysis to clean up environmental contamination, notably in the treatment water and air, has received extensive research. composite materials synthesized by coprecipitation method were made ZnO graphitic carbon nitride (g-C3N4) with various concentrations lanthanum doping (La-ZnO). It was discovered that La metal ions evenly distributed throughout layered stacking structures nanosheet, which had an impact on band structure increased rate electron-hole separation visible...

A series of S/Gd 3+ ‐codoped TiO 2 photocatalysts were synthesized by a modified sol‐gel method. The materials characterized X‐ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), UV‐visible diffuse reflectance scanning electron microscopy (SEM)/energy‐dispersive (EDX), and transmission (TEM)/energy‐dispersive (EDS). Laboratory experiments with Indigo Carmine chosen as model for organic pollutants used to evaluate the photocatalytic performance under...

Conducting polymers have shown great potential in detecting gases at room temperature. This has caused the rapid development of these materials for gas sensing because their conductivity can be altered when exposed to oxidant or reductant molecules Nevertheless, due relatively high attraction volatile organic and water low conductivity, they show sensitivity, selectivity, thermal instability that impede practical applications as sensors. Moreover, semiconducting inorganic (metal oxide)...

The unrestricted discharge of textile chemicals in natural water sources has posed major ecological and environmental threats to our standard living. For decades, there been a continuous search for affordable, visible-light driven semiconductors with the capability harnessing full potential sunlight help curb aforementioned problem. Herein, photocatalysts based on series cobalt (Co) graphitic carbon nitride (g-C3N4) co-doped ZnO were synthesized via co-precipitation method eosin yellow dye...