CN100392023C

Nanometer rutile titania sedimentation for preparing mica titanium nanometer composite material

Abstract

The method of the invention relates to the preparation and titanium nanometre composite material, refers to the or TiO2 and covering agent and preparing method of the mica is the substrate and method of rutile-type titanium dioxide a preparation and titanium nanometre composite material. Weighing the roasted bar or TiO2 emulsion, thins, a ultrasonic wave, according to TiO2/or the mica 1∶20-1∶4 the mass ratio of which of the mica is placed in 0.5-2mol/L to 7.2-7.4 are; andThe mica is processed added to dispersing the aerobic or TiO2 emulsion, wherein the 60-100℃ water groove, a added by dropping NaOH and pH value of the HCl solution of 2.0-5.0, 2h-6h reaction; Mica titanium period of the finished, cooling and washing, 4-8 and filtering, less than 20ms/m until the conductivity of filtering, and drying made of the mica titanium nanometre composite material. The mica titanium nanometre composite material of the preparation method, the is having excellent; of scattering strength of high, the stopping and luster of the preceding claims, which has the reaction condition temperately, easy to control, it is low; and flow power simple.

Term

No projected expiry on record.

  1. Priority and filed
  2. Granted
  3. Today

5 claims: 2 independent, 3 dependent

  1. 1
    st, The method of rutile-type nanometre titanium dioxide a preparation and titanium nanometre composite material, comprising characterised of:The preparation method is divided into two following steps: (1). The or Tio2 is system is a single waiting concentration of the 98^TiCl4 solution is added to the diluted hydrochloric acid, and TiCL diluted hydrochloric acid volume ratio of the: 3, the diluted the aerobic TiCl4 solution of the Na2co3 solution, regulating the pH value of 7.0-10.0, wherein the line to of the emulsion filtering, less than 20ms/m until the conductivity of filtering;Weighing which has a filtering and non-finalizes The inner pressure of the distilled water is added;and stirring condition of HNO3 enriching, regulating the pH value is 7.0, and is enriching HCl to adjust the pH value is less than 0.40, normal temperature mixing;the purity of 2 hours, and then and Ratio of the emulsion (12 TC-22 (rC water thermal reacting 18h, wherein the prepared from rutile-type nanometre, Ti02(2). The preparation of weighing and titanium nanometre composite material and step for preparing the Tio2 or emulsion, wherein water diluted, and ultrasonic dispersion, according to Ti02/or wire and: : To 4 mass ratio of which of the mica is placed in 0. the 5-2mol/L HCL firstly;The of the mica to acid treatment filtering, washing, then adding dispersing in the aerobic The rutile-type emulsion, wherein in the 60-IOO'C water - bath, wherein by dropping NaOH and pH value of the HCl solution is agitated 2. 0 To 5.0, 2h-6h reaction;Mica titanium period of the finished, cooling and distilled water washing, ratio of the spectral filter cakes, until the conductive electric of filtering is less than 20 ms/m, and drying, namely and titanium nanometre composite material. 1、一种纳米金红石二氧化钛沉积法制备云母钛纳米复合材料的方法,其特征在于:制备方法分为以下两个步骤: (1).金红石型TiO2的制备 取浓度为98%TiCl4溶液加入到稀盐酸中,TiCl4与稀盐酸的体积比为1∶3,在稀释好的的TiCl4溶液中加入Na2CO3溶液,调节其pH值为7.0-10.0,对乳浊液进行抽滤,直至滤液的电导率小于20ms/m; 称取已经抽滤好的无定型TiO2滤饼用蒸馏水稀释后,在搅拌状态下滴加浓HNO3,调节其pH值为7.0,然后滴加浓HCl调节其pH值小于0.40,常温搅拌,老化2-4h,然后将搅拌好的TiO2乳浊液于120℃-220℃水热反应18h,制得纳米金红石型TiO2; (2).云母钛纳米复合材料的制备 称取步骤1制备的金红石型TiO2乳浊液,加水稀释后,放超声波中分散,按照金红石型TiO2/绢云母的1∶20-1∶4的质量比称取绢云母放入0.5-2mol/L HCl中进行处理; 将酸处理后的云母抽滤,洗涤,然后加入到已分散好的金红石型TiO2乳浊液中,于60-100℃水浴中搅拌,通过不断滴加NaOH和HCl控制溶液的pH值为2.0-5.0,反应2h-6h; 将反应完毕的云母钛静置,冷却、用蒸馏水洗涤,抽滤滤饼,直至滤液的电导率小于20ms/m,滤饼烘干后,即得云母钛纳米复合材料。
  2. 2
    nd, Wherein the preparation method of titanium mica nanometre composite material according to claim wherein the is characterised of:The or preparing The process, the diluted the aerobic TiCl4 solution is lmol/L-3mol/L Na2C (V solution. 2、 根据权利要求l所述的云母钛纳米复合材料的制备方法,其特征在于:在 金红石型Ti02的制备过程中,在稀释好的TiCl4溶液中加入lmol/L—3mol/L的 Na2C(V溶液。