Double-ligand rare earth complex photocatalyst as well as preparation method and application thereof

• Main Authors: WANG XIN, CHEN CHAOYUE, CHEN YANFEI, LIN CHENLAN, KOU WEIZHI, YANG TINGHAI
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a double-ligand rare earth complex photocatalyst as well as a preparation method and application thereof. The chemical expression of the photocatalyst is {Ln(NO3) (hpcH)(phen)}n, hpcH2-in the chemical expression is 5-hydroxypyrazole-3-carboxylic acid organic ligand anion, phen is 1,10-phenanthroline, Ln=Gd, La or Y. ln<3+> is connected with 5-hydroxypyrazole-3-carboxylic acid organic ligand ions to form a two-dimensional layered structure, and phen molecules and NO3<-> ions are arranged on the two sides of a wave layer. The synthesis method of the photocatalyst is simple and convenient, and the reaction conditions are mild; and the catalyst can efficiently catalyze and degrade soluble azo dyes under the conditions of normal temperature and visible light, and the catalyst can be recycled and keeps a stable structure, so that a new choice is provided for degradation of organic dye pollutants in a water body. 本发明公开一类双配体稀土配合物光催化剂及其制备方法和应用，该光催化剂的化学表达式为{Ln(NO3)(hpcH)(phen)}n，化学表达式中的hpcH2-为5-