Method for doping titanium dioxide nanotube array

• Main Authors: LIU GUOGUANG, LIU HAIJIN
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2009
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CRYSTAL GROWTH; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SEMICONDUCTOR DEVICES; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

The invention discloses a method for doping a titanium dioxide nanotube array and aims to provide a low-cost and high-doping-efficiency method for doping a titanium dioxide nanotube array. The method comprises the following steps: placing the titanium dioxide nanotube array to be doped and a platinum electrode in an electrolysis bath; and connecting the positive pole and the negative pole of a direct current power supply and the platinum electrode and the titanium dioxide nanotube array to be doped respectively, wherein the voltage of the direct current is no more than 10 V and the electrolyte is a salt solution containing NH4 or a mixed salt solution containing metal ions and NH4. Compared with the prior art, the method has the obvious advantages of low implement cost, convenient operation, high doping efficiency, and the like. The method is suitable for doping nanotubes.