[1]袁弟亮,刘玉*,王巍聪,等.基于杨木模板的二氧化钛制备及其甲醛降解性能研究[J].林业工程学报,2020,5(01):34-40.[doi:10.13360/j.issn.2096-1359.201904018]
 YUAN Diliang,LIU Yu*,WANG Weicong,et al.Preparation of titanium dioxide based on poplar template and its application on formaldehyde degradation[J].Journal of Forestry Engineering,2020,5(01):34-40.[doi:10.13360/j.issn.2096-1359.201904018]
点击复制

基于杨木模板的二氧化钛制备及其甲醛降解性能研究()
分享到:

《林业工程学报》[ISSN:1001-8081/CN:32-1160/S]

卷:
5
期数:
2020年01期
页码:
34-40
栏目:
木材科学与技术
出版日期:
2020-01-07

文章信息/Info

Title:
Preparation of titanium dioxide based on poplar template and its application on formaldehyde degradation
文章编号:
2096-1359(2020)01-0034-07
作者:
袁弟亮刘玉*王巍聪高力娇程进
东北林业大学材料科学与工程学院,哈尔滨 150040
Author(s):
YUAN Diliang LIU Yu* WANG Weicong GAO Lijiao CHENG Jin
College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
关键词:
木材模板 杨木 二氧化钛 甲醛 光催化降解
Keywords:
wood templated poplar TiO2 formaldehyde photocatalytic degradation
分类号:
TS69
DOI:
10.13360/j.issn.2096-1359.201904018
文献标志码:
A
摘要:
使用二氧化钛(TiO2)光催化降解甲醛,具有节能环保,清洁无毒的优点,同时TiO2光催化剂可有效降解室内其他污染物以及细菌等有害生物的污染,大大改善室内居住环境。为了提高TiO2的催化活性和制备结构优良的TiO2,以杨木为模板,通过采用水热预处理-前驱体浸渍-高温煅烧的工艺方法,进行木材模板TiO2的制备,以甲醛水溶液的降解性能为指标,对浸渍合成工艺进行优化,并结合SEM、XRD和氮吸附测试分析,对材料进行表征。研究结果表明:以杨木为模板制备的TiO2对甲醛水溶液具有一定的降解能力,优化前驱体浸渍液中钛酸丁酯:水:无水乙醇:冰乙酸=1:3:9:2(摩尔比),超声浸渍木材模板4 h,超声反应15 min的条件下制备的木材模板TiO2对甲醛水溶液的降解率最高; 在紫外光照下,杨木模板TiO2粒子受到激发光催化降解甲醛,在120 min内降解率达到12.61%,280 min内降解率达到15.17%; 杨木模板TiO2的晶型结构主要为锐钛矿和少量金红石相,平均晶粒尺寸为18.8 nm,较小的粒径度和多孔结构使得木材模板TiO2具有较强的紫外光吸收能力,进而提高了材料的紫外光降解能力。
Abstract:
The use of titanium dioxide(TiO2)photocatalytic degradation of formaldehyde has the advantages of energy saving, environmental protection, clean and non-toxic. At the same time, TiO2 photocatalyst can effectively degrade the pollution of indoor pollutants, bacteria and other harmful organisms, which can greatly improve the indoor living environment. In order to improve the catalytic activity of TiO2 and prepare TiO2 with excellent structure, the preparation of wood template TiO2 was carried out using poplar as template and hydrothermal pretreatment-precursor impregnation-high temperature calcination. The degradation performance of formaldehyde aqueous solution as the index was optimized for the impregnation synthesis process, and the materials were characterized by the scanning electron microscope(SEM), X-ray diffraction(XRD)and nitrogen adsorption test analysis. The results showed that the prepared wood template TiO2 could describe the microstructure of poplar wood well, which illustrated that the cell pores were sized 10-20 μm and the pore structure was below 5 μm on the cell wall. The TiO2 prepared using poplar as a template had certain degradation ability to aqueous formaldehyde solution, and optimized the butyl titanate in the precursor impregnation liquid. The optimized molar ratio of water:absolute ethanol:glacial acetic acid was 1:3:9:2. The wood template TiO2 prepared by the wood template had the highest degradation rate of formaldehyde aqueous solution when the ultrasonic impregnation time was 4 h and ultrasonic reaction was 15 min. The effect on the formaldehyde solution under visible light and no light was mainly adsorption, and the desorption occurred when the adsorption reached saturation. Under the ultraviolet light, the poplar template TiO2 particles were excited to photocatalytic degradation of formaldehyde. The degradation rate reached 12.61% in 120 min and reached 15.17% in 280 min. The crystal structure of poplar template TiO2 was mainly anatase and a small amount of rutile phase, and the average grain size was 18.8 nm. The smaller particle size and porous structure made the wood template TiO2 had a strong ultraviolet light absorbing ability, thereby improving the ultraviolet light degradation ability of the material.

参考文献/References:

[1] 苏娟, 陈接胜. 二氧化钛多孔材料及其性能研究进展[J]. 应用化学, 2018, 35(9): 1126-1132. DOI:10.11944/j.issn.1000-0518.2018.09.180162.
SU J, CHEN J S. Research progress in titanium dioxide porous materials and their properties[J]. Chinese Journal of Applied Chemistry, 2018, 35(9): 1126-1132.
[2] 张淑娟, 黄耀棠. 利用植物净化室内甲醛污染的研究进展[J]. 生态环境学报, 2010, 19(12): 3006-3013. DOI:10.3969/j.issn.1674-5906.2010.12.041.
ZHANG S J, HUANG Y T. Research progress in purification of indoor formaldehyde pollution by plants[J]. Journal of Eco-Environment, 2010, 19(12): 3006-3013.
[3] 庄晓虹, 胡筱敏, 卢晓军, 等. 室内空气中甲醛、苯系物的污染特征分析[J]. 中国安全科学学报, 2008(5): 97-101. DOI:10.3969/j.issn.1003-3033.2008.05.017.
ZHUANG X H, HU Y M, LU X J, et al. Analysis of pollution characteristics of formaldehyde and benzene in indoor air[J]. Chinese Journal of Safety Science, 2008(5): 97-101.
[4] 彭丽婧, 李宗伦, 李凌. 纳米二氧化钛光催化降解室内甲醛气体的研究进展[J]. 大气与环境光学学报, 2017, 12(2): 93-99. DOI:10.3969/j.issn.1673-6141.2017.02.002.
PENG L J, LI Z L, LI L. Research progress of nano-TiO2 photocatalysis degradation of indoor formaldehyde[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(2): 93-99.
[5] 黄艳娥, 琚行松. 纳米二氧化钛光催化降解水中有机污染物的研究进展[J]. 化工环保, 2002(1): 23-27. DOI:10.3969/j.issn.1006-1878.2002.01.006.
HUANG Y E, YAN X S. Research progress of photocatalytic degradation of organic pollutants in water by nano-TiO2[J]. Chemical Industry and Engineering, 2002(1): 23-27.
[6] KRAEUTLER B, JAEGER C D, BARD A J. Direct observation of radical intermediates in the photo-kolbe reaction-heterogeneous photocatalytic radical formation by electron spin resonance[J]. Journal of the American Chemical Society, 1978, 100(15): 4903-4905. DOI:10.1021/ja00483a052.
[7] TRYK D A, FUJISHIMA A, HONDA K. Recent topics in photoelectrochemistry: achievements and future prospects[J]. Electrochemical Acta, 2000, 45(15): 2363-2376. DOI:10.1016/S0013-4686(00)00337-6.
[8] FUJISHIMA A, RAO T N, TRYK D A. Titanium dioxide photocatalysis[J]. Journal of Photochemistry and Photobiology C: Photochemistry Reviews, 2000, 1(1): 1-21. DOI:10.1016/S1389-5567(00)00002-2.
[9] KOZLOVA E A, VORONTSOV A V. Influence of mesoporous and platinum-modified titanium dioxide preparation methods on photocatalytic activity in liquid and gas phase[J]. Applied Catalysis B:Environmental, 2007, 77(1/2): 35-45. DOI:10.1016/j.apcatb.2007.07.001.
[10] VOGEL R, MEREDITH P, KARTINI I, et al. Mesostructured dye-doped titanium dioxide for micro-optoelectronic applications[J]. ChemPhysChem, 2003, 4(6): 595-603.
[11] 刘燕燕, 吴耀国, 刘凯, 等. 纳米二氧化钛的制备及其在环氧树脂改性中的应用[J]. 材料科学与工程学报, 2011, 29(2): 316-320. DOI:10.14136/j.cnki.issn1673-2812.2011.02.019.
LIU Y Y, WU Y G, LIU K, et al. Preparation of nano-TiO2 and its application in epoxy resin modification[J]. Journal of Materials Science and Engineering, 2011, 29(2): 316-320.
[12] 时金金, 郭元茹, 潘清江. 以碱木质素胺盐为模板制备纳米二氧化钛及其光催化性能研究[J]. 森林工程, 2015, 31(3): 54-56. DOI:10.3969/j.issn.1001-005X.2015.03.012.
SHI J J, GUO Y R, PAN Q J. Preparation of nano-TiO2 using alkali ligninamine salt as template[J]. Forest Engineering, 2015, 31(3): 54-56.
[13] 张晓婷, 王莎, 彭新文, 等. 以纤维素气凝胶为模板合成孔隙结构可调的二氧化钛[J]. 造纸科学与技术, 2018, 37(4): 28-35. DOI:10.19696 /j.issn1671-4571.2018.4.007.
ZHANG X T, WANG S, PENG X W, et al. Synthesis of titanium dioxide with adjustable pore structure using cellulose aerogel as template[J]. Paper Science and Technology, 2018, 37(4): 28-35.
[14] 李建强, 李巧玲, 赵静贤, 等. 树叶为模板网状TiO2的制备及其光催化性能[J]. 化学学报, 2010, 68(18): 1845-1849.
LI J Q, LI Q L, ZHAO J X, et al. Preparation and photocatalytic properties of reticular TiO2 with leaves as template[J]. Acta Chimica Sinica, 2010, 68(18): 1845-1849.
[15] 刘书源, 戚克振, 仇萌. 无缺陷和氧缺陷二氧化钛的光催化活性[J]. 催化学报, 2018, 39(4):867-875. DOI:10.1016/S1872-2067(17)62999-1.
LIU S Y, YAN K Z, Q M. Photocatalytic activity of Titanium dioxide without defects and oxygen defects[J]. Chinese Journal of Catalysis, 2018, 39(4): 867-875.
[16] 戈磊, 徐明霞, 鄂磊, 等. 二氧化钛光催化材料研究的新动向[J]. 材料导报, 2004(7): 72-75. DOI:10.3321/j.issn:1005-023X.2004.07.021.
GE L, XU M X, E L, et al. New trends in the study of titanium dioxide photocatalytic materials[J]. Materials Review, 2004(7): 72-75.
[17] 于小迪, 王洪波, 刘麒, 等. 二氧化钛光催化消毒技术在水处理中的研究[J]. 环境科学与管理, 2013, 38(1): 81-86. DOI:10.3969/j.issn.1673-1212.2013.01.021.
YU X D, WANG H B, LIU Q, et al. Study on photocatalytic disinfection of titanium dioxide in water treatment[J]. Environmental Science and Management, 2013, 38(1): 81-86.
[18] 郭宇, 金玉家, 吴红梅, 等. 负载型二氧化钛光催化材料的制备及其光催化性能研究[J]. 光谱学与光谱分析, 2015, 35(6): 1677-1681. DOI:10.3964/j.issn.1000-0593(2015)06-1677-05.
GUO Y, JIN Y J, WU H M, et al. Preparation and photocatalytic activity of supported Titanium dioxide photocatalytic materials[J]. Spectroscopy and Spectral Analysis, 2015, 35(6): 1677-1681.
[19] 鲍甫成, 赵有科, 吕建雄. 杉木和马尾松木材渗透性与微细结构的关系研究[J]. 北京林业大学学报, 2003(1): 1-5. DOI:10.3321/j.issn:1000-1522.2003.01.001.
BAO Y C, ZHAO Y K, LYU J X. Relationship between wood permeability and microstructure of Chinese fir and masson pine[J]. Journal of Beijing Forestry University, 2003(1): 1-5.
[20] 龙超, 郝丙业, 刘文斌, 等. 影响热处理木材力学性能的主要工艺因素[J]. 木材工业, 2008(1): 43-45. DOI:10.19455/j.mcgy.2008.01.014.
LONG C, HAO B Y, LIU W B, et al. Main process factors affecting mechanical properties of heat treated wood[J]. Timber Industry, 2008(1): 43-45.
(责任编辑 葛华忠)

相似文献/References:

[1]王慧,张娅梅,朱越骅,等.单板条层积材(PSL)力学性能的各向异性[J].林业工程学报,2018,3(04):51.[doi:10.13360/j.issn.2096-1359.2018.04.009]
 WANG Hui,ZHANG Yamei,ZHU Yuehua,et al.Study on the anisotropy of mechanical properties of parallel strand lumber[J].Journal of Forestry Engineering,2018,3(01):51.[doi:10.13360/j.issn.2096-1359.2018.04.009]

备注/Memo

备注/Memo:
收稿日期:2019-04-18 修回日期:2019-09-05
基金项目:黑龙江自然科学基金项目(C2017002)。
作者简介:袁弟亮,男,研究方向为人造板VOC释放控制技术。通信作者:刘玉,女,副教授。E-mail:liuyu820524@126.com
更新日期/Last Update: 2019-12-10