Journal of Inorganic Materials ›› 2019, Vol. 34 ›› Issue (2): 219-224.doi: 10.15541/jim20180379

• RESEARCH LETTER • Previous Articles     Next Articles

Porous Bamboo Charcoal/TiO2 Nanocomposites: Preparation and Photocatalytic Property

Qiu-Hu PANG1, Guang-Fu LIAO1, Xiao-Yu HU1, Quan-Yuan ZHANG1,2(), Zu-Shun XU1   

  1. 1. Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Material, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, School of Materials Sciences and Engineering, Hubei University, Wuhan 430062, China
    2. Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization, Qinzhou University, Qinzhou 535000, China
  • Received:2018-08-22 Online:2019-02-20 Published:2019-01-24
  • About author:PANG Qiu-Hu (1993-), male, candidate of Master degree. E-mail: 350902598@qq.com
  • Supported by:
    Foundation item: Natural Science Foundation of Hubei Province (2013CFB011);Guangxi Colleges and Universities Key Laboratory of Beibu Gulf Oil and Natural Gas Resource Effective Utilization, Qinzhou University (2014KL0G07)

Abstract:

Here we report a novel surface modified bamboo charcoal/TiO2 (SMBC/TiO2) nanocomposites with high adsorption and photocatalytic property. SMBC were prepared by a wet oxidization method of cheap natural bamboo charcoal (BC) with good absorbent and chemical stabilities. After modification, high density of carboxyl groups were generated on the surface of BC, thus SMBC particles can be easily dispersed in water and have stronger interactions with TiO2 nanoparticles, which ensure SMBC uniformly coated on TiO2. And SMBC/TiO2 nanocomposties have much higher specific surface area than BC/TiO2, which could offer higher adsorption capacity. The saturated adsorption capacity of SMBC/TiO2 is approximately 1.6 times, 12.1 times as great as BC/TiO2 and pure TiO2, respectively. The synergetic effect of adsorption and catalysis endow SMBC/TiO2 composites much higher photocatalytic activity than BC/TiO2 and pure TiO2 for MB degradation, and the rate constant for MB photocatalytic degradation of SMBC/TiO2 was almost 7 times and 6 times as large as BC/TiO2 and pure TiO2, respectively.

Key words: TiO2, porous materials, wet oxidization, photocatalysis, adsorption

CLC Number: 

  • TF125