Multiphase Titanate Photocatalyst for Water Treatment
Official patent title
NiTiO3/TiO2/Ti0⋅936O2/Zn2Ti3O8/C nanocomposite and method of preparation using sol-gel/combustion
Arabic title: مركب نانوي من NiTiO.SUB.3./TiO.SUB.2./Ti.SUB.0⋅93.6O.SUB.2./Zn.SUB.2.Ti.SUB.3.O.SUB.8./C وطريقة تحضيره باستخدام sol-gel/combustion
Invention
Invention
Problem
Complex photocatalysts need controlled integration of multiple titanate, titanium-oxide, and carbon phases, while many synthesis routes struggle with phase precision and reproducibility.
Why it matters
Photocatalytic materials may help degrade persistent organic pollutants in water, provided activity, mineralization, stability, leaching, and real-water performance are demonstrated.
Approach
A sol-gel combustion route combines titanium, zinc, and nickel precursors with an amino acid, then dries and calcines the mixture to form NiTiO3/TiO2/Ti0.936O2/Zn2Ti3O8/C. The resulting nanocomposite is proposed as a light-driven catalyst for degrading organic pollutants in water.
Who may benefit
Potential beneficiaries include water-treatment researchers, photocatalyst manufacturers, industrial-effluent developers, environmental laboratories, and producers of multiphase titanate nanomaterials.
Potential value
The disclosure combines four titanate or titanium-oxide phases and carbon in one characterized powder with a defined sol-gel combustion synthesis and pollutant-degradation use.
Background
Background
Single-phase photocatalysts can be limited by light absorption, charge recombination, or insufficient surface behavior. Multiphase titanate and carbon composites may modify these properties, but their preparation requires careful control of metal ratios, gel chemistry, combustion, and calcination. The publication defines a nickel-titanium-zinc-carbon nanocomposite and proposes broad organic-pollutant degradation. The supplied evidence includes synthesis and XRD, EDX, SEM, and HRTEM characterization; it does not show pollutant-specific experimental curves, mineralization, by-product toxicity, catalyst reuse, or independent treatment validation.
Technology overview
Technology overview
A titanium alkoxide, short-chain alcohol, and organic acid are mixed with zinc and nickel ion sources. An amino-acid solution, including an arginine embodiment, forms the reaction mixture, which is heated at about 100–200 °C until dry and calcined at about 600–800 °C. The resulting material contains NiTiO3, anatase TiO2, rutile Ti0.936O2, Zn2Ti3O8, and carbon with specified atomic and particle ranges. Light irradiation is claimed to degrade selected organic pollutants in water.
Potential applications
Potential applications
- Photocatalytic treatment research for organic water pollutants.
- Dye, phenol, pesticide, and persistent-pollutant screening.
- Multiphase titanate catalyst development.
- Sol-gel combustion research for carbon-containing oxide nanocomposites.
Evidence-supported advantages
Evidence-supported advantages
- One route integrates nickel titanate, two titanium-dioxide phases, zinc titanate, and carbon.
- Precursor ratios, drying conditions, and calcination ranges are specified.
- Particle and crystallite-size ranges are defined.
- XRD, EDX, SEM, and HRTEM characterization are described.
Development stage
Development stage
Laboratory synthesis and structural characterization are described; pollutant-specific photocatalytic testing, reuse, continuous-flow operation, and independent performance verification are not established.
Commercial opportunity
Commercial opportunity
The material may interest photocatalyst and industrial-water developers. Commercial assessment requires independent degradation and total-organic-carbon data under defined light, realistic contaminant mixtures, quantum efficiency, by-product analysis, metal and nanoparticle leaching, catalyst recovery and reuse, continuous-flow testing, scale-up reproducibility, energy use, and comparison with established treatment technologies.
Patent classifications
Patent classifications
WIPO IPC
- B01J21/06Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J35/39Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
CPC
- B01J21/063Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J35/39Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J35/45Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J35/77Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J37/088Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J37/12Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C02F1/30Treatment of water, wastewater, sewage or sludge
- C02F1/725Treatment of water, wastewater, sewage or sludge
- B01J2235/15Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J2235/30Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C02F2101/30Treatment of water, wastewater, sewage or sludge
- C02F2305/10Treatment of water, wastewater, sewage or sludge
Inventors
Inventors
- First inventorEhab Abdelhamed Abdelrahman Ahmed
- InventorBabiker Yagoub Elhadi Abdulkhair
Keywords
Keywords
- nickel titanate
- titanium dioxide
- zinc titanate
- nanocomposite
- sol-gel combustion
- photocatalysis
- organic pollutants
- water treatment
Patent document and drawings
Patent document and drawings
The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.