[1]周波,郑佳宜,陈振乾.微波辅助NH_4Cl改性沸石及其在调湿材料中的应用[J].东南大学学报(自然科学版),2013,43(4):835-839.[doi:10.3969/j.issn.1001-0505.2013.04.030]
 Zhou Bo,Zheng Jiayi,Chen Zhenqian.Modification of natural zeolite by microwave assisted ammonium chloride and its application to humidity-controlling materials[J].Journal of Southeast University (Natural Science Edition),2013,43(4):835-839.[doi:10.3969/j.issn.1001-0505.2013.04.030]
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微波辅助NH_4Cl改性沸石及其在调湿材料中的应用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第4期
页码:
835-839
栏目:
材料科学与工程
出版日期:
2013-07-20

文章信息/Info

Title:
Modification of natural zeolite by microwave assisted ammonium chloride and its application to humidity-controlling materials
作者:
周波郑佳宜陈振乾
东南大学能源与环境学院, 南京 210096
Author(s):
Zhou Bo Zheng Jiayi Chen Zhenqian
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
沸石 NH4Cl 改性 调湿性能
Keywords:
zeolite ammonium chloride activation humidity-controlling capability
分类号:
TB34
DOI:
10.3969/j.issn.1001-0505.2013.04.030
摘要:
利用微波辅助强化NH4Cl溶液对天然沸石进行活化改性,研制出一种具有较强吸、放湿性能的材料.通过SEM,FTIR和BET等方法对改性前后沸石的表面结构和形貌进行了微观表征,分析了活化溶液中氯化铵含量、微波加热时间和功率、环境温度、湿度等参数对沸石调湿性能的影响,对比测试了改性前后沸石的吸、放湿效率.研究发现:沸石试样经100 W的微波和辅助3%氯化铵溶液活化加热3 min后,比天然沸石、改性沸石试样的吸、放湿率分别提高了25%和17%;在环境湿度变化情况下,改性沸石试样可将环境湿度调控在56.8%~60.3%范围之内.
Abstract:
A new humidity-controlling materials with strong absorption and desorption was developed through the modification of natural zeolite microwave assisted ammonium chloride. The surface and the structures of the zeolite before and after the modification were measured by SEM(scanning electron microscope), FTIR(Fourier transform infrared spectroscopy)and BET. Influence of various parameters, such as the amount of ammonium chloride impregnated to samples, microwave heating time and power, temperature and humidity on the humidity-controlling capability of the modified zeolite were investigated.The moisture absorption and desorption rates of the natural zeolite was tested and compared with those of the modified zeolite. The results show that compared with the natural zeolite, the moisture absorption and desorption rates of the modified zeolite samples can be increased by 25% and 17%, respectively, when it is modified by 3% saturated ammonium chloride and 100 W microwave heated for 3 minutes. The modified zeolite is able to maintain humidity in the range of 56.8% to 60.3% in the changing humidity conditions.

参考文献/References:

[1] Kalamees T, Korpi M, Vinha J, et al. The effects of ventilation systems and building fabric on the stability of indoor temperature and humidity in Finnish detached houses[J]. Building and Environment, 2009, 44(2):1643-1650.
[2] Abusafa A, Yucel H. Removal of(137)Cs from aqueous solutions using different cationic forms of a natural zeolite: clinoptilolite [J]. Separation and Purification Technology, 2002, 28(2):103-116.
[3] Gonzlez J C, Molina-Sabio M, Rodrguea-Reinoso F. Sepiolite-based adsorbents as humidity controller [J]. Applied Clay Science, 2001, 20(3):111-118.
[4] Janotka I, Krajci L, Dzivak M. Properties and utilization of zeolite-blended portland cements [J]. Clays and Clay Minerals, 2003, 51(1):616-624.
[5] Lee Y, Hriljac J A, Parise J B, et al. Pressure-induced hydration in zeolite tetranatrolite [J]. American Mineralogist, 2006, 91(2/3): 247-251.
[6] Zhong Y, Cheng X W, Wang J, et al.Studies on CXN natural zeolite Ⅵ. Acid-resistant property and thermal stability of various cation forms[J]. Acta Chimica Sinica, 2005, 63(11): 955-960.
[7] Alberti A, Sacerdoti M, Quartieri S, et al. Heating-induced phase transformation in zeolite brewsterite: new 4-and 5-coordinated(Si,Al)[J]. Physics and Chemistry of Minerals, 1999, 26(3): 181-186.
[8] Wang X J, Ren J X, Li Y Z, et al. Synthesis of cathode material "carbon-included" LiFePO4 by microwave heating [J]. Chinese Journal of Inorganic Chemistry, 2005, 21(2): 249-252.
[9] Wang L, Huang Y D, Jiang R R, et al. Preparation and characterization of nano-sized LiFePO4 by low heating solid-state coordination method and microwave heating[J]. Electrochimica Acta, 2007, 52(24):6778- 6783.
[10] Hu G R, Liao G, Peng Z D, et al. Structure and electrochemical properties of LiCoO2 synthesized by microwave heating[J]. Journal of Inorganic Materials, 2004, 11(3):261-264.

备注/Memo

备注/Memo:
作者简介: 周波(1984—),女,博士生;陈振乾(联系人),男,博士,教授,博士生导师,zqchen@seu.edu.cn.
基金项目: 科技部国际科技合作技术交流专项资助项目(2011DFA60290).
引文格式: 周波,郑佳宜,陈振乾.微波辅助NH4Cl改性沸石及其在调湿材料中的应用[J].东南大学学报:自然科学版,2013,43(4):835-839. [doi:10.3969/j.issn.1001-0505.2013.04.030]
更新日期/Last Update: 2013-07-20