不同有机分子改性羟基磷灰石用于甲醛催化氧化

引用本文: 孙亚会, 曲振平, 陈丹, 王辉, 张帆, 傅强. 不同有机分子改性羟基磷灰石用于甲醛催化氧化[J]. 催化学报, 2014, 35(12): 1927-1936. doi: 10.1016/S1872-2067(14)60129-7 shu

Citation: Yahui Sun, Zhenping Qu, Dan Chen, Hui Wang, Fan Zhang, Qiang Fu. Formaldehyde catalytic oxidation over hydroxyapatite modified with various organic molecules[J]. Chinese Journal of Catalysis, 2014, 35(12): 1927-1936. doi: 10.1016/S1872-2067(14)60129-7 shu

不同有机分子改性羟基磷灰石用于甲醛催化氧化

孙亚会 ^a, ,
曲振平 ^{a,
,} ,
陈丹 ^a, ,
王辉 ^a, ,
张帆 ^b, ,
傅强 ^b,

通讯作者: 曲振平

基金项目:
国家自然科学基金(21377016) (21377016)

中央高校基本科研业务费专项资金(DUT13LK27) (DUT13LK27)

长江学者和创新团队发展计划 (IRT_13R05). (IRT_13R05)

摘要: 分别采用十六烷基三甲基溴化铵(CTAB)、十二烷基硫酸钠(SDS)及柠檬酸钠(SC)对羟基磷灰石(HAP)进行了有机改性.柠檬酸钠改性的羟基磷灰石对甲醛催化氧化表现出最好的催化活性, 在240 ℃实现了甲醛完全转化.通过X射线衍射、红外光谱、N₂吸附-脱附、扫描电镜和热重/差重等手段对HAP结构进行了表征.结果表明, SC改性使得HAP比表面积和孔体积增加, 孔径减小, 更有利于吸附及传质, 从而提高了其活性.此外, SC改性的HAP中羟基含量更多, 更有利于甲醛与羟基之间发生相互作用, 这是该样品活性提高的另一个原因.

关键词:

English

Formaldehyde catalytic oxidation over hydroxyapatite modified with various organic molecules

Yahui Sun ^a, ,
Zhenping Qu ^{a,
,} ,
Dan Chen ^a, ,
Hui Wang ^a, ,
Fan Zhang ^b, ,
Qiang Fu ^b,

1.
a. Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian116024, Liaoning, China;

Corresponding author: 曲振平

Received Date: 13 April 2014
Fund Project:
国家自然科学基金(21377016)

中央高校基本科研业务费专项资金(DUT13LK27)

长江学者和创新团队发展计划 (IRT_13R05).

Abstract: Hydroxyapatite (HAP) was modified by adding various organic molecules, such as cetyltrimethylammonium bromide, sodium dodecyl sulfate, and sodium citrate, during the precipitation of HAP. Sodium citrate-modified HAP displayed the best activity for formaldehyde oxidation, achieving complete conversion at 240 ℃. The influence of the organic modifiers on the structure of HAP was assessed by X-ray diffraction, Fourier transform infrared spectroscopy, N₂ adsorption- desorption, scanning electron microscopy, and thermogravimetry/derivative thermogravimetry. The higher specific surface area and pore volume, and smaller pores, owing to modification with sodium citrate, favored adsorption, mass transfer, and interaction process during formaldehyde oxidation. Furthermore, the higher hydroxyl group content observed in sodium citrate- modified HAP enhanced interactions between formaldehyde and HAP, thus resulting in higher catalytic activity.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

不同有机分子改性羟基磷灰石用于甲醛催化氧化

通讯作者: 曲振平

English

Formaldehyde catalytic oxidation over hydroxyapatite modified with various organic molecules

Corresponding author: 曲振平

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

不同有机分子改性羟基磷灰石用于甲醛催化氧化

通讯作者: 曲振平

English

Formaldehyde catalytic oxidation over hydroxyapatite modified with various organic molecules

Corresponding author: 曲振平

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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