[1]叶 景,李海利,李秋明,等.I-TiO2负载活性炭的制备及其光催化再生[J].南京师范大学学报(自然科学版),2016,39(02):22.[doi:10.3969/j.issn.1001-4616.2016.02.005]
 Ye Jing,Li Haili,Li Qiuming,et al.Preparation of Activated Carbon Loaded I-TiO2and Its Photocatalytic Regeneration[J].Journal of Nanjing Normal University(Natural Science Edition),2016,39(02):22.[doi:10.3969/j.issn.1001-4616.2016.02.005]
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I-TiO2负载活性炭的制备及其光催化再生()
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《南京师范大学学报》(自然科学版)[ISSN:1001-4616/CN:32-1239/N]

卷:
第39卷
期数:
2016年02期
页码:
22
栏目:
化学
出版日期:
2016-06-30

文章信息/Info

Title:
Preparation of Activated Carbon Loaded I-TiO2and Its Photocatalytic Regeneration
作者:
叶 景1李海利1李秋明1陈 杰1王玉萍12
(1.南京师范大学化学与材料科学学院,江苏 南京 210097)(2.江苏省物质循环与污染控制重点实验室,江苏 南京 210097)
Author(s):
Ye Jing1Li Haili1Li Qiuming1Chen Jie1Wang Yuping12
(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)
关键词:
活性炭再生光催化碘掺杂流化床
Keywords:
activated carbon regenerationphotocatalyticiodine dopedfluidized bed
分类号:
X701
DOI:
10.3969/j.issn.1001-4616.2016.02.005
文献标志码:
A
摘要:
利用水热-浸渍烧结法制备了负载I-TiO2的活性炭样品,利用X射线衍射(XRD)、扫描电镜(SEM)和N2吸附-脱附(BET)等手段对负载活性炭进行表征.以空气为介质,对饱和吸附甲苯的负载活性炭进行光催化再生.考察了气体流量、活性炭粒径和再生次数对再生效果的影响.实验结果表明,负载I-TiO2后,活性炭的比表面积下降,但由于I-TiO2的协调作用,孔容和孔径没有明显影响.气体体积流量的增加有利于活性炭的光催化再生,但活性炭的损失率也相应增大;活性炭的粒径越小越有利于活性炭的光催化再生.在300?W紫外灯下,活性炭粒径为60目~80目,气体体积流量为8 L/min,饱和吸附甲苯的负载活性炭的再生率可达88.03%.
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.

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备注/Memo

备注/Memo:
收稿日期:2015-04-16. 
基金项目:江苏省环保科技专项基金(2013002)、大学生实践创新创业计划项目(181220013). 
通讯联系人:王玉萍,教授,研究方向:纳米半导体光催化材料及其在环境中的应用. E-mail:wangyuping@njnu.edu.cn
更新日期/Last Update: 2016-06-30