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Preparation of a novel bentonite intercalation composite by changing the chemical state of aluminum
Journal of the Chinese Chemical Society ( IF 1.8 ) Pub Date : 2020-01-19 , DOI: 10.1002/jccs.201900353 Qian Peng 1 , Decun Kong 1 , Li Shi 1 , Xin Wang 1 , Xuan Meng 1 , Naiwang Liu 1
Journal of the Chinese Chemical Society ( IF 1.8 ) Pub Date : 2020-01-19 , DOI: 10.1002/jccs.201900353 Qian Peng 1 , Decun Kong 1 , Li Shi 1 , Xin Wang 1 , Xuan Meng 1 , Naiwang Liu 1
Affiliation
A new environment‐friendly bentonite intercalation composite was successfully obtained from alumina sol intercalation. This process used industrial grade pseudo boehmite as the aluminum source and provided with the advantage of zero emission of acidic wastewater. The bentonite intercalation composite was investigated by XRF, ICP, XRD, FT‐IR, BET, and pyridine‐FTIR. Results indicated that the basal spacing was enlarged from 14.72 to 15.60 Å; the specific surface area increased by 128%; and the total acid content increased from 65.32 to 245.76 μmol/g. The catalytic activity of this composite was tested by alkylation of aromatics with olefins. The results show that the weak Lewis acid generated by extra‐framework aluminum and specific surface area play a decisive role, while weak Brønsted acid site is not the active site for this alkylation reaction.
中文翻译:
通过改变铝的化学态制备新型膨润土插层复合材料
氧化铝溶胶插层成功地获得了一种新型的环保膨润土插层复合材料。该工艺使用工业级假勃姆石作为铝源,并具有酸性废水零排放的优势。通过XRF,ICP,XRD,FT-IR,BET和吡啶-FTIR研究了膨润土插层复合材料。结果表明,基底间距从14.72Å扩大到15.60Å;比表面积增加了128%;总酸含量从65.32μmol/ g增加到245.76μmol/ g。该复合物的催化活性通过芳烃与烯烃的烷基化来测试。结果表明,骨架外铝和比表面积产生的弱路易斯酸起决定性作用,而弱的布朗斯台德酸位点不是该烷基化反应的活性位点。
更新日期:2020-01-19
中文翻译:
通过改变铝的化学态制备新型膨润土插层复合材料
氧化铝溶胶插层成功地获得了一种新型的环保膨润土插层复合材料。该工艺使用工业级假勃姆石作为铝源,并具有酸性废水零排放的优势。通过XRF,ICP,XRD,FT-IR,BET和吡啶-FTIR研究了膨润土插层复合材料。结果表明,基底间距从14.72Å扩大到15.60Å;比表面积增加了128%;总酸含量从65.32μmol/ g增加到245.76μmol/ g。该复合物的催化活性通过芳烃与烯烃的烷基化来测试。结果表明,骨架外铝和比表面积产生的弱路易斯酸起决定性作用,而弱的布朗斯台德酸位点不是该烷基化反应的活性位点。