| BETA沸石酸性质的红外测定 |
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| 引用本文： | 肖丰收,郭阳虹,裘式纶,庞文琴,辛勤,张慧,应品良. BETA沸石酸性质的红外测定[J]. 吉林大学学报(理学版), 1993, 0(2) |
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| 作者姓名： | 肖丰收 郭阳虹 裘式纶 庞文琴 辛勤 张慧 应品良 |
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| 作者单位： | 吉林大学化学系，吉林大学化学系，吉林大学化学系，吉林大学化学系，大连化学物理研究所国家催化基础研究实验室，大连化学物理研究所国家催化基础研究实验室，大连化学物理研究所国家催化基础研究实验室 长春 130023，长春 130023，长春 130023，长春 130023，大连 116023，大连 116023，大连 116023 |
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| 基金项目： | 国家自然科学基金，大连化学物理研究所国家催化基础实验室资助课题 |
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| 摘 要： | 分别利用0.1mol/L的NH_4Cl和HCl对BETA沸石分子筛进行了离子交换.结果表明,HCl导致了BETA沸石骨架脱铝,而NH_4Cl则对骨架铝无影响.红外光谱的OH振动频率显示出了两个谱峰在3740cm~(-1)和3610cm~(-1)处,分别归属于Si—OH和Si(OH)Al基团.吸附吡啶的红外光谱表明,不仅3610cm~(-1)而且部分的3740cm~(-1)谱带也显示了较强的酸性.
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| 关 键 词： | 离子交换 BETA沸石 酸性质 红外光谱 |
Characterization for Acidic Properties of BETA Zeolite by Using IR Spectroscopy |
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| Xiao Fengshou,Guo Yanghong,Qiu Shilun,Pang Wenqin. Characterization for Acidic Properties of BETA Zeolite by Using IR Spectroscopy[J]. Journal of Jilin University: Sci Ed, 1993, 0(2) |
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| Authors: | Xiao Fengshou Guo Yanghong Qiu Shilun Pang Wenqin |
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| Abstract: | The ion exchanges of zeolite BETA with 0. 1 mol/L NH4C1 and 0. 1 mol/L HCI solutions were performed respectively, and it was shown that the addition of HCl resulted in the dealumination of beta-zeolite framework, while NH4C1 was inactive for the elimination of framework Al. The 1R spectra exhibited the hydroxyl stretching bands at 37 10 cm-1 and 3610 cm-1, which are assigned to Si-OH and Si(OH)Al groups, respectively. Adsorption of pyridine showed that both 3610 cm-1 and a partial 3740 cm-1 species exhibited strong acidic properties. |
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| Keywords: | ion exchange zeolite BETA zeolite acidity IR |
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