Preparation method of optically-driven self-cleaning Ti3C2-TiO2-C3N4 heterojunction separation membrane

The invention provides a preparation method of a Ti < 3 > C < 2 >-C < 2 > N < 4 > heterojunction separation membrane with a light-driven self-cleaning function. A photocatalysis technology is coupled with a membrane separation technology. Researches show that the edge of the...

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Bibliographische Detailangaben
Hauptverfasser:	LUO CHUNJIA, CHEN XUSHUAI, FENG YANGYANG, CHEN TAO, CHAO MIN, YAN LUKE, CHEN XI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention provides a preparation method of a Ti < 3 > C < 2 >-C < 2 > N < 4 > heterojunction separation membrane with a light-driven self-cleaning function. A photocatalysis technology is coupled with a membrane separation technology. Researches show that the edge of the MXene (Ti3C2TX) nanosheet is provided with transition metal Ti atoms which are metastable in thermodynamics, and a Ti3C2TX-coated TiO2 heterostructure can be formed through high-temperature directional induction. However, the forbidden bandwidth of TiO2 is relatively wide, the absorption of sunlight is only limited to an ultraviolet band, and the energy utilization rate is insufficient. In addition, electron-hole pair recombination is easy to occur in a photon-generated carrier migration process, and the photocatalytic efficiency is low. The invention aims to develop a high-performance separation membrane by fully utilizing the self-oxidation characteristic of MXene so as to realize the ultra-fast permeability of the MXene-based separatio