Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fe-B co-doped TiO2 modified polylactic acid antibacterial material and preparation method thereof
The invention relates to the technical field of polylactic acid, and discloses a Fe-B co-doped TiO2 modified polylactic acid antibacterial material, which is prepared from the following formula raw materials and components: H3BO3, FeCl3, tetrabutyl titanate, a silane coupling agent, a template agent, a catalyst and DL-lactide. The invention discloses the Fe-B co-doped TiO2 modified polylactic acidantibacterial material. Fe replaces part of Ti crystal lattices; lattice defects are generated in the TiO2 nano fiber, as a capture trap of photo-induced electrons, recombination of photo-induced electrons and holes is inhibited, the photocatalytic chemistry of the TiO2 nano fiber is improved, B replaces part of O crystal lattices; the p orbit of the O atom and the p orbit of the B atom are hybridized; the forbidden band width of the TiO2 nanofiber is reduced, the light absorption edge of TiO2 is subjected to red shift, the visible light absorption band of the TiO2 nanofiber is widened, the Fe-B co-doped TiO2 nanofiber has uniform and excellent photocatalytic activity, and polylactic acid is endowed with excellent antibacterial performance.
本发明涉及聚乳酸技术领域，且公开了一种Fe‑B共掺杂TiO改性聚乳酸抗菌材料，包括以下配方原料及组分：HBO、FeCl、钛酸四丁酯、硅烷偶联剂、模板剂、催化剂、DL‑丙交酯。该一种Fe‑B共掺杂TiO改性聚乳酸抗菌材料，Fe‑B共掺杂TiO纳米纤维，Fe取代了部分Ti的晶格，在TiO纳米纤维中产生晶格缺陷，作为光生电子的捕获陷阱，抑制光生电子和空穴的复合，提高了TiO纳米纤维的光催化化学，B取代了部分O的晶格，O原子的p轨道与B原子的p轨道发生杂化，降低了TiO纳米纤维的禁带宽度，使TiO的光吸收边发生红移，拓宽了TiO纳米纤维的可见光吸收波段，Fe‑B共掺杂TiO纳米纤维均匀优异的光催化活性，赋予了聚乳酸优异的抗菌性能。
Fe-B co-doped TiO2 modified polylactic acid antibacterial material and preparation method thereof
The invention relates to the technical field of polylactic acid, and discloses a Fe-B co-doped TiO2 modified polylactic acid antibacterial material, which is prepared from the following formula raw materials and components: H3BO3, FeCl3, tetrabutyl titanate, a silane coupling agent, a template agent, a catalyst and DL-lactide. The invention discloses the Fe-B co-doped TiO2 modified polylactic acidantibacterial material. Fe replaces part of Ti crystal lattices; lattice defects are generated in the TiO2 nano fiber, as a capture trap of photo-induced electrons, recombination of photo-induced electrons and holes is inhibited, the photocatalytic chemistry of the TiO2 nano fiber is improved, B replaces part of O crystal lattices; the p orbit of the O atom and the p orbit of the B atom are hybridized; the forbidden band width of the TiO2 nanofiber is reduced, the light absorption edge of TiO2 is subjected to red shift, the visible light absorption band of the TiO2 nanofiber is widened, the Fe-B co-doped TiO2 nanofiber has uniform and excellent photocatalytic activity, and polylactic acid is endowed with excellent antibacterial performance.
本发明涉及聚乳酸技术领域，且公开了一种Fe‑B共掺杂TiO改性聚乳酸抗菌材料，包括以下配方原料及组分：HBO、FeCl、钛酸四丁酯、硅烷偶联剂、模板剂、催化剂、DL‑丙交酯。该一种Fe‑B共掺杂TiO改性聚乳酸抗菌材料，Fe‑B共掺杂TiO纳米纤维，Fe取代了部分Ti的晶格，在TiO纳米纤维中产生晶格缺陷，作为光生电子的捕获陷阱，抑制光生电子和空穴的复合，提高了TiO纳米纤维的光催化化学，B取代了部分O的晶格，O原子的p轨道与B原子的p轨道发生杂化，降低了TiO纳米纤维的禁带宽度，使TiO的光吸收边发生红移，拓宽了TiO纳米纤维的可见光吸收波段，Fe‑B共掺杂TiO纳米纤维均匀优异的光催化活性，赋予了聚乳酸优异的抗菌性能。
Fe-B co-doped TiO2 modified polylactic acid antibacterial material and preparation method thereof
一种Fe-B共掺杂TiO改性聚乳酸抗菌材料及其制法
CHEN JIANHUA (Autor:in)
11.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
A01N
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF
,
Konservieren von Körpern von Menschen, Tieren, Pflanzen oder deren Teilen
/
A01P
BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
,
Biozide Wirkung, Schädlinge vertreibende, Schädlinge anlockende oder Pflanzenwachstum regulierende Wirkung von chemischen Verbindungen oder Mitteln
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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