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科技导报
| 专题论文 2016, 34(19): 59-63
可循环竹纤维/TiO
2 复合材料的制备与光催化性
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郑欢欢1 , 孙春晖1 , 钱特蒙1 , 金春德1,2
作者信息
1. 浙江农林大学工程学院, 杭州 311300;
2. 浙江省木材科学与技术重点实验室, 杭州 311300
通讯作者:
金春德(通信作者),教授,研究方向为木竹材仿生智能科学和生物质废弃资源的高值功能化开发利用,电子信箱:jincd@zafu.edu.cn
Preparation and photocatalysis of recyclable bamboo cellulose/titanium dioxide composites
Affiliations
出版时间: 2016-10-13
doi: 10.3981/j.issn.1000-7857.2016.19.009
文章导航
将再生竹纤维加入氟钛酸铵与硼酸的混合溶液中,经水热法合成,得到纤维素/TiO2 复合材料。以紫外光为光源,研究纤维素/TiO2 复合材料对甲基橙水溶液的催化降解性能。通过FT-IR、XRD、SEM等对纤维处理前后进行化学结构和微观形貌表征,结果表明:TiO2 与纤维素形成的氢键等分子间作用力使TiO2 被吸附到纤维素表面上,复合材料出现528 cm-1 的O-Ti-O键的吸收峰。在紫外光照射60 min下,复合材料对甲基橙水溶液的光催化降解率为95.9%,与纯TiO2 相当;复合材料可反复降解甲基橙水溶液5次。本实验合成的复合材料为污水处理提供了一种简单、低成本、环境友好的方法。
The TiO2 /cellulose composites were successfully fabricated by in situ synthesis of TiO2 nanoparticles in the regenerated bamboo cellulose fibers using the ammonium fluoride titanate and boric acid mixture. The catalytic degradation performance of composites on the methyl orange solution was studied by ultraviolet light source. The structure and properties of the samples were characterized by using Fourier-transform infrared spectroscopy(FT-IR), X-ray diffraction(XRD), scanning electron microscopy(SEM). The results show that a strong interaction between the hydroxyl groups of cellulose and TiO2 nanoparticles through hydrogen bond generated immobilization of TiO2 nanoparticles on the cellulose surface. The absorption peaks at 528 cm-1 were assigned to the O-Ti-O stretching, respectively. The photocatalytic degradation ratio of methyl orange solution was comparable to the pure TiO2 power, up to 95.5% under UV light for 60 min. Moreover, it could degrade of methyl orange 5 times over and over again, leading to a simple, low-cost and environment friendly approach for application in the fields of sewage treatment.
cellulose
/
TiO2
/
photocatalysis
/
methyl orange
郑欢欢, 孙春晖, 钱特蒙, 金春德.
可循环竹纤维/TiO2 复合材料的制备与光催化性.
科技导报,
2016
, 34
(19)
: 59
-63
.
DOI: 10.3981/j.issn.1000-7857.2016.19.009
ZHENG Huanhuan, SUN Chunhui, QIAN Temeng, JIN Chunde.
Preparation and photocatalysis of recyclable bamboo cellulose/titanium dioxide composites[J].
Science & Technology Review ,
2016
, 34
(19)
: 59
-63
.
DOI: 10.3981/j.issn.1000-7857.2016.19.009
2016年第34卷第19期
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引用本文
BibTeX
文章信息
doi: 10.3981/j.issn.1000-7857.2016.19.009
接收时间:2015-12-14
首发时间:2016-10-21
出版时间:2016-10-13
收稿日期:2015-12-14
修回日期:2016-02-25
通讯作者:
金春德(通信作者),教授,研究方向为木竹材仿生智能科学和生物质废弃资源的高值功能化开发利用,电子信箱:jincd@zafu.edu.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2016.19.009
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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