[1]刘辛燕,薛静,何淑娟,等. 纳米MnO2改性木材对甲醛的光催化降解研究[J].西北林学院学报,2014,29(03):194-197.[doi:doi:10.3969/j.issn.1001-7461.2014.03.39]
　LIU Xin-yan,XUE Jing,HE Shu-juan,et al. Photocatalytic Degradation of Formaldehyde by Nano-MnO2 Modified Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2014,29(03):194-197.[doi:doi:10.3969/j.issn.1001-7461.2014.03.39]
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 纳米MnO2改性木材对甲醛的光催化降解研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第29卷
期数:
2014年03期
页码:
194-197
栏目:
出版日期:
2014-05-30

文章信息/Info

Title:
 Photocatalytic Degradation of Formaldehyde by Nano-MnO2 Modified Wood
文章编号:
1001-7461(2014)03-0194-04
作者:
 刘辛燕; 薛静; 何淑娟; 仝莉; 马晓军
 （天津科技大学 木材科学与工程系，天津 300222）
Author(s):
 LIU Xin-yan;  XUE Jing;  HE Shu-juan;  TONG Li;  MA Xiao-jun
 （Department of Wood Science and Technology, Tianjin University of Science & Technology，Tianjin 300222，China）
关键词:
 ; 木材; 二氧化锰; 催化降解; 甲醛
Keywords:
 ; wood;  manganese dioxide;  degradation;  formaldehyde
分类号:
S781.7
DOI:
doi:10.3969/j.issn.1001-7461.2014.03.39
文献标志码:
A
摘要:
 以杉木为载体，低温水热工艺制备出纳米MnO2改性木材光催化复合材料，考察了不同HCI摩尔比、光照强度、降解时间、用量对甲醛的降解性能的影响。结果表明：随着制备MnO2改性杉木材料时的HCI摩尔比的增加，其对甲醛的降解率先增加后降低；而随着降解时间的增加其甲醛降解率逐渐趋于平缓。MnO2改性杉木材料在室温阳面自然光照射下对甲醛的催化降解72 h达到92.42%；而甲醛降解率随着白炽灯功率增加却呈下降的趋势。当用0.9 g的MnO2改性杉木材料在白炽灯15 W的照射下，HCI浓度为2 mol·L-1时，降解时间3 h，甲醛催化降解率达到98.37%。
Abstract:
 Taking the timber of Chinese fir (Cunninghamia lanceolata) as the carrier,nano-MnO2 modified wood photocatalytic material was prepared by low temperature hydrothermal method process.Effects on degradation of formaldehyde of different factors were examined,such as molar ratio of HCl,light intensity,degradation time, and amount of MnO2 in modified wood photocatalytic material.It was indicated that the degradation rate of formaldehyde first increased and then decreased with the increase of molar ratio of HCl during the preparation of MnO2 modified fir material.With the increase of time,the degradation rate gradually became stable.The photocatalytic degradation of formaldehyde reached to 92.42% after 72 h sunny side natural lightening at ambient temperature.The degradation rate of formaldehyde tended to decrease with the increase of incandescent lamp power. The rate of formaldehyde degradation reached 98.37% when modified fir material (in which the amount of MnO2 was 0.9 g) was exposed under the 15 W incandescent lamp,the hydrochloric acid concentration was 2 mol·L-1, the degradation time was 3 hours.

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备注/Memo

备注/Memo:
 收稿日期：2013-10-24 修回日期：2013-12-09
基金项目：国家大学生创新创业计划项目（201210057012）。
作者简介：刘辛燕，女，讲师，研究方向：木质光催化材料。E-mail：liuyan0213@126.com
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