Four-Phase Nanocomposite for Water Remediation
Official patent title
Fabrication of CaB2O4/Co3(BO3)2/PbO2/Co3O4 nanocomposite material using Pechini sol-gel method
Arabic title: تصنيع مادة مركبة نانوية من CaB2O4/Co3(BO3)2/PbO2/Co3O4 باستخدام طريقة Pechini sol-gel
Invention
Invention
Problem
Oxide nanocomposite synthesis can be complex and time-consuming and may produce inconsistent particle sizes, limited phase uniformity, weak stability, or degradation during intended catalytic or environmental use.
Why it matters
A controlled four-phase porous material could support pollutant-remediation research, but lead and cobalt release, contaminant capacity, photocatalytic products, reuse, and environmental safety require independent verification.
Approach
The Pechini route complexes calcium, cobalt, lead, and boron precursors with a chelating agent and polyol, forms a gel and dry powder, then calcines it into a four-phase porous nanocomposite.
Who may benefit
Potential beneficiaries include oxide-materials laboratories, environmental-remediation researchers, catalyst developers, specialty-powder manufacturers, and analytical groups studying multiphase borate and oxide structures.
Potential value
The disclosure links four XRD-defined phases, specified elemental ranges, mixed plate and granular morphology, and a bounded chelation, gel formation, drying, and calcination sequence.
Background
Background
Calcium borate, cobalt borate, lead oxide, and cobalt oxide are investigated for catalysis, environmental remediation, and energy-related materials. Established synthesis routes can be lengthy and may yield inconsistent particle sizes, uneven crystalline phases, or limited stability. The Pechini sol-gel method uses metal complexation and a polymeric gel to distribute precursors before heat treatment. The patent applies that route to a combined porous material, while any water-treatment use must account for the presence of lead and cobalt within the composite.
Technology overview
Technology overview
The material contains orthorhombic CaB2O4, orthorhombic Co3(BO3)2, orthorhombic PbO2, and cubic Co3O4 phases. Claim 1 specifies boron and lead at about 1–10 atom % each and calcium and cobalt at about 5–20 atom % each. A chelating-agent solution is added to calcium, cobalt, and lead salts plus boric acid; a polyol forms a gel. The gel is heated at about 200–400 °C, and the dry powder is calcined at about 500–800 °C.
Potential applications
Potential applications
- Potential immobilization studies for inorganic water contaminants.
- Potential actinic-light degradation studies for organic pollutants.
- Potential catalyst-material characterization research.
- Potential multiphase oxide process-development work.
Evidence-supported advantages
Evidence-supported advantages
- Combines four specified crystalline phases.
- Defines elemental and crystallite-size ranges.
- Provides plate-like, granular, and agglomerated morphology features.
- Describes both material preparation and potential remediation methods.
Development stage
Development stage
Patent publication describing material synthesis and characterization; independent remediation performance, safety, and commercialization were not established.
Commercial opportunity
Commercial opportunity
The material may interest specialty-oxide and remediation researchers. Development requires independent contaminant-capacity and degradation data, lead and cobalt leaching under realistic pH and water chemistry, treated-water toxicity, catalyst recovery and reuse, spent-media classification, phase and batch consistency, scale-up of gel processing, energy demand, worker exposure control, and comparative treatment economics.
Patent classifications
Patent classifications
WIPO IPC
- C01B35/12Non-metallic elements; compounds thereof
- C01G21/08Compounds containing metals not covered by subclasses C01D or C01F
CPC
- C01B35/126Non-metallic elements; compounds thereof
- C01B35/127Non-metallic elements; compounds thereof
- C01G21/08Compounds containing metals not covered by subclasses C01D or C01F
- C01G51/04Compounds containing metals not covered by subclasses C01D or C01F
- C02F1/281Treatment of water, wastewater, sewage or sludge
- C02F1/32Treatment of water, wastewater, sewage or sludge
- C01P2002/60Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2002/72Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2004/03Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2004/24Indexing scheme for structural and physical aspects of solid inorganic compounds
- C01P2004/51Indexing scheme for structural and physical aspects of solid inorganic compounds
- C02F2101/10Treatment of water, wastewater, sewage or sludge
- C02F2101/30Treatment of water, wastewater, sewage or sludge
- C02F2305/08Treatment of water, wastewater, sewage or sludge
Inventors
Inventors
- First inventorEhab Abdelhamed Abdelrahman Ahmed
Keywords
Keywords
- CaB2O4
- Co3(BO3)2
- PbO2
- Co3O4
- Pechini method
- sol-gel
- water remediation
- porous nanocomposite
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.