Molybdenum-Oxide Sorbent for Cleaner Water
Official patent title
Water decontamination via C3N4@MoO3/MgAl2O4 nanocomposite
Arabic title: إزالة تلوث المياه باستخدام المركب النانوي C3N4@MoO3/MgAl2O4
Invention
Invention
Problem
Water can contain toxic metal ions and persistent dyes that require removal before reuse or discharge. An adsorbent must combine capacity, selectivity, rapid uptake, recoverability, and low leaching.
Why it matters
A reusable solid that captures metal or dye contaminants could support industrial wastewater treatment, groundwater remediation, and water-reuse polishing.
Approach
Contaminated water is contacted with a g-C3N4/MoO3/MgAl2O4 composite in a 5–15:2–7:75–95 mass relationship, after which the pollutant-loaded solid is removed from the water.
Who may benefit
Potential beneficiaries include water utilities, industrial wastewater operators, environmental-remediation firms, adsorbent manufacturers, mining-water programs, and analytical laboratories.
Potential value
The material targets a broad listed set of metals and dyes and reports at least 70 mg/g adsorption within 30 minutes for an organic-pollutant embodiment, alongside defined structural characterization.
Background
Background
Heavy metals do not biodegrade and can accumulate in ecosystems, while synthetic dyes may persist and interfere with aquatic environments. Adsorption transfers these contaminants from water to a solid that can be separated. Practical use requires quantitative capacity for each pollutant, kinetics, selectivity in the presence of competing ions, and safe management of the loaded medium. The disclosed carbon-nitride, molybdenum-oxide, and magnesium-aluminate composite is presented as a porous adsorbent for listed metals and charged dyes.
Technology overview
Technology overview
The composite contains g-C3N4, MoO3, and MgAl2O4 in the stated mass range, with 8–12 m²/g BET area, 5–15 nm pores, and 0.01–0.5 cm³/g pore volume. XRD and diffraction identify molybdenum-oxide, spinel, magnesium-oxide, and carbon-nitride features. Claims list Cd, Cr, Cu, Fe, Pb, Ni, Ag, Zn, and U, plus dyes. The description reports at least 70 mg/g uptake within 30 minutes and a 3–4 mg/min average organic-pollutant adsorption rate over that period.
Potential applications
Potential applications
- Heavy-metal adsorption from water.
- Dye removal from industrial effluent.
- Water-reuse polishing.
- Environmental-remediation media research.
Evidence-supported advantages
Evidence-supported advantages
- Targets both metals and organic dyes.
- Reports rapid organic-pollutant uptake.
- Uses a separable heterogeneous solid.
- Provides defined porosity and phase ranges.
- Avoids sulfide components in claimed embodiments.
Development stage
Development stage
Laboratory material characterization and claimed batch adsorption results are described; pollutant-specific real-water performance, column operation, leaching, regeneration, and repeated reuse were not established. The development stage was not independently verified.
Commercial opportunity
Commercial opportunity
The adsorbent could be screened for industrial water polishing. Commercialization requires pollutant-specific isotherms, column breakthrough, selectivity in real water, metal and molybdenum leaching, solid recovery, regeneration cycles, loaded-media disposal, ecotoxicity, batch reproducibility, scale-up cost, and comparison with activated carbon, ion exchange, and commercial mineral adsorbents.
Patent classifications
Patent classifications
WIPO IPC
- C02F1/28Treatment of water, wastewater, sewage or sludge
- B01J20/02Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C02F101/00Treatment of water, wastewater, sewage or sludge
CPC
- B01J20/3078Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C02F1/288Treatment of water, wastewater, sewage or sludge
- B01J20/0259Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/06Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/08Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/28019Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/28059Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/28071Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/28083Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/2809Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J20/3021Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- C02F1/281Treatment of water, wastewater, sewage or sludge
- C02F2101/006Treatment of water, wastewater, sewage or sludge
- C02F2101/20Treatment of water, wastewater, sewage or sludge
- C02F2101/203Treatment of water, wastewater, sewage or sludge
- C02F2101/22Treatment of water, wastewater, sewage or sludge
- C02F2101/308Treatment of water, wastewater, sewage or sludge
- C02F2101/40Treatment of water, wastewater, sewage or sludge
- C02F2305/08Treatment of water, wastewater, sewage or sludge
Inventors
Inventors
- First inventorMohamed Khairy Abdel Fattah Omran
- InventorBabiker Yagoub Elhadi Abdulkhair
Keywords
Keywords
- water decontamination
- heavy metal adsorption
- dye removal
- molybdenum trioxide
- graphitic carbon nitride
- magnesium aluminate
- 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.