Abstract This study investigates the feasibility of use electroplating wastewater as a source copper (Cu) dopants to improve photocatalytic efficacy TiO 2 under visible light for disinfection water contaminated with Escherichia coli . The Cu-doped was produced by sol-gel process, employing titanium tetra-isopropoxide (TTIP) and Cu(II) ions derived from wastewater. By modifying concentration Cu(II), -Cu photocatalysts differing concentrations were synthesized. doping procedure substantially...

The development of photocatalysts with wastewater management has drawn the attention many scientists. This research investigates enhancement activity TiO2 photocatalyst codoped N and Cu from urea electroplating respectively as sources, for photodegradation amoxicillin (AMX) residual in water media. synthesis been done through sol-gel process to determine optimal concentration each single dopant based on highest band gap energy (E g) narrowing their performance AMX. synthesized are...

The study of protein phosphorylation has grown exponentially in recent years, as it became evident that important cellular functions are regulated by and dephosphorylation proteins on serine, threonine tyrosine residues. use immobilized metal affinity chromatography (IMAC) to enrich phosphopeptides from peptide mixtures been shown be useful especially prior mass spectrometric analysis. For the selective enrichment applying solid-phase extraction (SPE) phosphorylated peptides, we introduce...

Over the past couple of years, proteomics pattern analysis has emerged as an effective method for early diagnosis diseases such ovarian, breast, or prostate cancer, without identification single biomarkers. MALDI-TOF MS, example, offers a simple approach fast and reliable protein profiling, especially by using carrier materials with various physical chemical properties, in combination MALDI matrix. This is referred to material-enhanced laser desorption/ionization (MELDI). In this paper, we...

The C,N co-doped TiO2 photocatalyst was prepared by interacting the chicken egg white having various weights (1, 2, and 4 g) with 1 g of in an autoclave through hydrothermal process at 150°C. photocatalysts were characterized using Fourier transform infrared (FTIR), X-ray diffraction (XRD), specular reflectance UV/visible (SRUV/Vis), transmission electron microscope (TEM) instruments. photocatalytic activity evaluated monitoring photo-decolorization Congo red dye under visible light a batch...

We have developed the spherical gold nanoparticles (AuNPs) with different size at room temperature using L-ascorbic acid as a reducing agent. Controlling pH of from 2.0 to 10.0 caused decreasing AuNPs when measured particle analyzer. The alkaline condition leads increase reactivity even temperature. homogeneous were achieved synthesis was conducted (pH 12.0). investigation Transmission Electron Microscopy (TEM) confirmed that performed shape. SEM-EDX measurement strong characteristic peak Au...

Silver nanoparticles having uniform size and shape, a diameter range of 10–50 nm, excellent stability, high zeta potential are always desirable for many applications. The silver were synthesized by chemical reduction method using some reducing agents in polyvinyl alcohol solution. This study aims at determining the effect on physical properties nanoparticles. Ascorbic acid, sodium borohydride, hydrazine, citrate, glucose used as agents. Surface Plasmon Resonance (SPR) absorbance, morphology,...

The modification of TiO2 using rare earth oxide (La2O3) to increase the photodegradation activity under visible light has been conducted. goal this research is identify influence La2O3 on photocatalytic TiO2. mixed TiO2/La2O3 was prepared precipitation method. as-prepared catalyst then calcined at 923 K. photocatalyst characterized SRUV, XRD, FTIR, and SEM-EDX. results showed that TiO2/La2O3-923 in degradation methylene blue higher than pristine decrease bandgap energy from 3.2 eV 3.01 not...

Penelitian ini bertujuan untuk mempelajari kondisi optimum proses delignifikasi, hidrolisis asam dan enzimatis kulit buah kakao serta pemanfaatannya sebagai media fermentasi laktat. Karakterisasi dilakukan dengan metode X-Ray Diffraction (XRD) , Spektrometri Infra Red(IR) Scanning Electron Microscopy(SEM). Konsentrasi glukosa ditentukan secara kuantitatif UV-Sulfat, sedangkan total laktat titrasi basa. Hasil penelitian menunjukkan bahwa konsentrasi NaOH pada delignifikasi adalah 6%, H 2 SO 4...

Environmental consequences during the COVID-19 pandemic have attracted attention due to excessive use of antibiotics which lead release drug's residue, such as amoxicillin (AMX), into environment. In this work, an advanced oxidation process based on a visible, active N-doped TiO2 photocatalyst was carried out eliminate AMX. Nitrogen with different initial doping concentrations (15, 30, 45% w/w) doped by sol-gel method. The characterization technique XRD, FTIR, UV-SRS, and SEM-EDX revealed...

Copoly(eugenol-DVB) with DVB composition of 2%, 6% and 12% had been prepared characterized by FTIR spectroscopy. The copolymers were used as membrane carriers for the transport phenol using polymer inclusion membranes (PIM) based on polyvinylchloride (PVC) support. experimental conditions investigation through pH source phase, NaOH concentration in stripping thickness, time. results showed that optimum condition was achieved copoly(eugenol-DVB) efficiency 75.6% at phase 4.5, 0.25 M time 48...

Abstract Alginate-chitosan hydrogel as controlled release of Nitrogen, Phosphorus, and Potassium (NPK) macronutrient has been studied. Variations alginate chitosan mass, N; P K concentration, pH solution, swelling ratio mass were optimized. Hydrogel was prepared by mixing alginate, CaCl 2 a cross linker in the water media. product characterized Fourier Transform Infrared (FTIR). P; measured UV-Vis spectrophotometer Atomic Absorption Spectrophotometer (AAS). The result showed that addition...

A study of phenol transport was conducted in correlation to the evaluation copoly(eugenol-divinylbenzene, DVB) as carrier using polymer inclusion membrane (PIM) method. The performance copoly(eugenol-DVB) observed based on parameters Membrane Liquid (ML) loss. Some variations, including effect plasticizer concentration, stirring speed, and measurement lifetime membrane, were studied. Related lifetime, concentration NaNO3 salt also tensile strength before after measured their morphology...

A study on the adsorption characteristic of Iron onto Poly[eugenol-co-(divinyl benzene)] (EDVB) from aqueous solution has been conducted. EDVB was produced and characterized by using FTIR spectroscopy. The studied a batch method considering factors affecting such as initial metal ion concentration, selectivity, mechanism sequential desorption method. followed pseudo-2 order kinetics model with rate constant 0,144 L2 mmol-1 min-1. isotherm Tempkin, Langmuir Freundlich models. capacity (Qmax)...

The responsible mechanism and performance of peat soil humin for the sorption methylene blue (MB) p-nitrophenol (p-NP) have been investigated. Humin was obtained from Siantan, West Kalimantan, Indonesia, after removing content humic fulvic acids into a NaOH solution using recommended procedure International Humic Substances Society (IHSS). then purified by rigorous stirring in mixed HCl 0.1 M HF 0.3 M. Ash purification abruptly decreased 36.84 to 1.26 wt.% indicating that minerals other...

Immobilized zeolit in alginate beads for adsorption of CO2 was developed. Alginate immobilized generated by dropping the mixture Na-alginate and zeolite solution into Ca2+ solution. The efficacy such as influence contact time, mass zeolite, flowrate CO2, adsorbent evaluated. onto investigated performing both equilibrium kinetic batch test. Bead characterized FTIR SEM. demonstrated significantly higher sorption compared to plain with 0.25 mmol adsorbed /g adsorbent. Optimum condition achieved...

In the present research, cetyltrymethyl ammonium bromide (CTAB)-modified silica from Kelud’s volcanic ash has been prepared and examined as adsorbent for removal of hazardous Cr(VI) anion. The research was initiated with purification SiO2 that carried out by reacting NaOH powder at 900 °C 2 h, followed dissolving to water 100 °C, then acidified HCl 1 M form hydrogel. By calcination hydrogel, (SiO2) gel obtained. next step modification CTAB, performed interacting CTAB solution gel, in which...