Preparation method and application of double-defect 2D g-C3N4-x NSs photocatalytic material

The invention relates to preparation and application of a double-defect 2D g-C3N4-x NSs photocatalytic material. The preparation method comprises the following steps: calcining melamine in N2 atmosphere at 550 DEG C to form a bulk-phase graphite-phase carbon nitride (g-C3N4) precursor; placing the p...

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Bibliographische Detailangaben
Hauptverfasser:	REN YONGXIANG, ZUO KEQIAN, SHI WEIJUAN, DANG BOYUAN, CHI YANBIN, YANG LEI, XU MINYANG
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 THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention relates to preparation and application of a double-defect 2D g-C3N4-x NSs photocatalytic material. The preparation method comprises the following steps: calcining melamine in N2 atmosphere at 550 DEG C to form a bulk-phase graphite-phase carbon nitride (g-C3N4) precursor; placing the precursor in a nitric acid solution, and adding hydrogen peroxide to obtain a suspension; performing ultrasonic treatment, stirring and standing on the turbid liquid to obtain modified g-C3N4; and placing the modified g-C3N4 in a muffle furnace, and calcining the modified g-C3N4 at 0-550 DEG C to obtain the double-defect type 2D g-C3N4-x NSs photocatalytic material. According to the present invention, the specific surface area of the bulk phase g-C3N4 is increased, the visible light utilization rate and the photon-generated carrier separation rate of the bulk phase g-C3N4 are effectively improved through the formation of the double defects, the good visible light catalytic activity is represented, and the rhodamine