Silicon nitride (Si3N4) is a very promising biomedical material. Customization and reliability requirements are one of the prerequisites for achieving widespread application Si3N4 materials. This research used 3D printing method to achieve customized molding gas pressure sintering prepare dense ceramic material, investigated their mechanical properties biological activity. Compared with Ti-alloy, Al2O3, PEEK, printed materials have significant advantages in properties: bending strength 803...

Cadmium is one of the most hazardous metals in environment, even when present at very low concentrations. This study reports systematic development Kenaf fiber biochar as an adsorbent for removal cadmium (Cd) (II) ions from water. The was aided by optimization tool. Activated prepared using physicochemical activation method, consisting pre-impregnation with NaOH and nitrogen (N2) pyrolysis. influence preparation parameters—namely, chemical impregnation (NaOH: KF), pyrolysis temperature, time...

This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The was prepared via solvent-casting method varying concentrations TCE. Film samples were exposed to from a γ-rays source 60Cobalt isotope. Color changes before after irradiation observed, optical properties films by spectrophotometry. Results show that increasing dose physically changed...

Silicon nitride (Si3N4) material holds significant potential as a widespread applied biomedical with high reliability in mechanical properties and biological activity. This study utilized 3D printing techniques to fabricate Si3N4 bioceramics reinforced zinc oxide (ZnO) nanowires, which overcomes the dilemma faced by traditional materials, possess excellent but lack sufficient antibacterial performance, or porous materials that exhibit good yet suffer from poor characteristics. Compared...

Abstract Silicon nitride (Si 3 N 4 ) is a bioceramic material with potential applications. Customization and high reliability are the foundation for widespread application of Si bioceramics. This study constructed new microwave heating structure successfully prepared 3D printed dense materials, overcoming adverse effects large amount organic forming agents on degreasing sintering processes, further improving comprehensive performance materials. Compared control materials by have best...

Anaerobic membrane bioreactor (AnMBR) provides a range of benefits which include high performance in extracting organic matter and energy production the form biogas. In this study, mixed matrix (MMM) to recover biomethane from wastewater was studied. Polymer polysulfone (Psf) incorporated with different inorganic fillers, halloysite nanotubes (HNT) activated carbon (AC). Different concentration (3%, 4% 5%) MMM’s polydimethylsiloxane (PDMS) coating were examined by using scanning electron...

Abstract Thin film composite (TFC) polyamide membranes are crucial for efficient reverse osmosis (RO) desalination, offering high selectivity and permeability. This study investigates the fabrication optimization of TFC on polysulfone supports, focusing their structural, morphological, performance properties enhanced desalination efficiency using phase inversion technique, a method that enables precise control over membrane structure. Key parameters including concentrations m-phenylene...

Polymer concentration had been identified as one of the important parameters tailoring membrane properties. In this work, effects polymer on morphological and mechanical properties were investigated at three different concentrations, i.e., 20, 25 30 wt%. The viscosity dope solutions determined to estimate optimum concentration. fabricated using SEM whereas tensile tester. Results show that an increase in could lead improvement membrane. strength for PSf-20, PSf-25 PSf-30 are 5.73, 6.59 7.03...

Water scarcity is still a pressing issue in many regions. The application of membrane technology through water desalination to convert brackish potable promising solve this issue. This study compared the performance templated TEOS-P123 and ES40-P123 hybrid membranes for desalination. were prepared by sol–gel method employing tetraethyl orthosilicate (TEOS) carbon-templated silica (soft template) ethyl silicate (ES40) organo-silica. Both sols adding 35 wt.% pluronic triblock copolymer (P123)...

Polyethersulfone (PES) is the most commonly used polymer for membrane ultrafiltration because of its superior properties. However, it hydrophobic, as such susceptible to fouling and low permeation rate. This study proposes a novel bio-based additive dragonbloodin resin (DBR) improving properties performance PES-based membranes. Four flat sheet membranes were prepared by varying concentration DBR (0–3%) in dope solutions using phase inversion method. After fabrication, thoroughly...

Abstract Asymmetric mixed matrix membranes (MMMs) incorporating Cloisite15A (C15A) clay particles were prepared using solvent evaporation and phase inversion with polyethersulfone (PES) as the membrane matrix. C15A loadings varied at 1 wt% 5 wt%. Membrane morphological thermal properties evaluated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) differential calorimetry (DSC). Addition favorably altered microscopic structure from...

The utilization of vegetable oil in the production polymeric material has gained interest due to its proven ability replace nonrenewable petroleum sources, as it is readily modified via chemical reaction produce polyol and subsequently for polyurethane production. Jatropha (JO), a second-generation feedstock, one suitable candidates polyester synthesis because contains high percentage unsaturated fatty acids. In this study, jatropha-based polyols (JOLs) with different hydroxyl values were...

This study assesses the optical properties and conductivity of PVA–H3PO4 (polyvinyl alcohol–phosphoric acid) polymer film blend irradiated by gamma (γ) rays. The was prepared solvent-casting method at H3PO4 concentrations 75 v% 85 v%, then up to 25 kGy using γ-rays from Cobalt-60 isotope source. absorption spectrum measured an ultraviolet–visible spectrophotometer over a wavelength range 200 700 nm. It found that peaks are in three regions, namely two ultraviolet region (310 350 nm) one peak...

Potential use of tannic acid (TA) as an additive for fabrication polyvinylidene difluoride (PVDF) membrane was investigated. The TA introduced by blending into the dope solution with varying concentrations 0, 1, 1.5, and 2 wt%. prepared membranes were characterized evaluated filtration humic (HA) solution. stability under harsh treatment also one-week exposure to alkaline conditions. results show that loadings enhanced resulting properties. It increased bulk porosity, water uptake,...