Self-cleaning GO/CPU/PAA/TiO2 composite film and preparation method thereof

The invention relates to a self-cleaning GO/CPU/PAA/TiO2 composite membrane and a preparation method thereof, and belongs to the technical field of membrane separation. The preparation method of the self-cleaning GO/CPU/PAA/TiO2 composite membrane comprises the following steps: preparing the CNS, th...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN CHUNYAN, HU XINYIN, LI RUILI, SHANG SHUYI, CHEN CHUNLIN, YANG ZHENGWEI, XIAO GUOQING, LI YUANYUAN
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 relates to a self-cleaning GO/CPU/PAA/TiO2 composite membrane and a preparation method thereof, and belongs to the technical field of membrane separation. The preparation method of the self-cleaning GO/CPU/PAA/TiO2 composite membrane comprises the following steps: preparing the CNS, the CPU microspheres with the core-shell structure and the TiO2; preparing a CPU/PAA/TiO2 dispersion liquid and a GO dispersion liquid; and preparing the self-cleaning GO/CPU/PAA/TiO2 composite film. According to the self-cleaning composite membrane disclosed by the invention, the core-shell structure CPU and TiO2 are used as filler intercalation GO to construct a nano channel. Meanwhile, due to the synergistic effect of CPU/PAA/TiO2, the photocatalyst shows excellent photocatalytic self-cleaning performance and reusability. The self-cleaning GO/CPU/PAA/TiO2 composite membrane disclosed by the invention is large in separation flux, high in rejection rate and excellent in self-cleaning effect, and can be recycled for