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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:

2016年02期

Page:

22-

Research Field:

化学

Publishing date:

Info

Title:

Preparation of Activated Carbon Loaded I-TiO₂and Its Photocatalytic Regeneration

Author(s):

Ye Jing¹; Li Haili¹; Li Qiuming¹; Chen Jie¹; Wang Yuping¹; ²

（1. School of Chemistry and Materials Science，Nanjing Normal University，Nanjing 210097，China）（2.Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control，Nanjing 210097，China）

Keywords:

activated carbon regeneration; photocatalytic; iodine doped; fluidized bed

PACS:

X701

DOI:

10.3969/j.issn.1001-4616.2016.02.005

Abstract:

I-TiO₂ loaded on activated carbon composites were prepared by sol-gel，soak and sintering method. Samples were characterized by X-ray diffraction（XRD），scanning electron microscope（SEM）and specific surface area test method（BET）. The spent composites saturated with toluene were regenerated using fluidized bed photocatalysis oxidation method and air as reacting media. The influence of circulation gas flow rate，particle size and regeneration times on structure and adsorption properties of composites was studied. The results showed that a certain amount of I-TiO₂ loaded made the specific surface area of activated carbon decrease，but it has no obvious influence on the pore diameter and volume of activated carbon because of the coordinating role of I-TiO₂. The increase of gas volume flow was beneficial to increasing photocatalytic regeneration efficiency of activated carbon，nevertheless，the loss rate of activated carbon also increased accordingly. Small particle size of activated carbon is helpful to improve the efficiency of photocatalytic regeneration of active carbon. The regenerated efficiency of the activated carbon saturated by toluene was 88.03% under 300 W UV lamp irradiation，particle size 60 mesh -80 mesh，and gas volume flow 8 L/min.

References:

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Last Update: 2016-06-30