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Formaldehyde Controlling the Synthesis of Multishelled SiO2/FexOy Hollow Porous Spheres
Langmuir ( IF 3.7 ) Pub Date : 2018-06-26 00:00:00 , DOI: 10.1021/acs.langmuir.8b00607 Yunfei Chang , Yuze Li 1 , Jingchuan Song 2 , Miao Zhao , Jing Guo , Qingda An , Yumei Gong 3 , Qipeng Guo 3
Langmuir ( IF 3.7 ) Pub Date : 2018-06-26 00:00:00 , DOI: 10.1021/acs.langmuir.8b00607 Yunfei Chang , Yuze Li 1 , Jingchuan Song 2 , Miao Zhao , Jing Guo , Qingda An , Yumei Gong 3 , Qipeng Guo 3
Affiliation
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A concise and facile sol–gel method to prepare multiple magnetic SiO2/FexOy hollow porous spheres was developed. A series of SiO2/FexOy hollow porous spheres consisting of single shell, yolk–shell, double shells, and triple shells could be obtained by simply adjusting the formaldehyde amount, as Fe(acac)3 was used as the shell-forming promoter. As the formaldehyde amount increases, the morphology of the as-prepared hollow spheres changed from single-shelled, yolk-shelled, double-shelled, to triple-shelled and then turned back. The spheres possess a large specific surface area (∼966 m2/g), uniform mesopores (∼4.5 nm), and large pore volume (1.37 cm3/g). Moreover, the yolk-shelled spheres have been successfully used in in situ adsorbing and reducing heavy metal ions in aqueous solution; the results suggested that it was an efficient adsorbent and convenient to concentrate from water.
中文翻译：
甲醛控制多壳SiO 2 / Fe x O y空心多孔球的合成
开发了一种简洁易用的溶胶-凝胶法，制备多个磁性SiO 2 / Fe x O y空心多孔球。通过简单地调节甲醛量就可以获得一系列由单壳，蛋黄壳，双壳和三壳组成的SiO 2 / Fe x O y空心多孔球，因为Fe（acac）3被用作壳-形成促进剂。随着甲醛量的增加，所制备的空心球的形态从单壳，卵黄壳，双壳变为三壳，然后折返。这些球具有较大的比表面积（约966 m 2/ g），均匀的中孔（〜4.5 nm）和大孔体积（1.37 cm 3 / g）。此外，蛋黄壳球已被成功地用于原位吸附和还原水溶液中的重金属离子。结果表明，它是一种有效的吸附剂，易于从水中浓缩。
更新日期：2018-06-26
中文翻译：
甲醛控制多壳SiO 2 / Fe x O y空心多孔球的合成
开发了一种简洁易用的溶胶-凝胶法，制备多个磁性SiO 2 / Fe x O y空心多孔球。通过简单地调节甲醛量就可以获得一系列由单壳，蛋黄壳，双壳和三壳组成的SiO 2 / Fe x O y空心多孔球，因为Fe（acac）3被用作壳-形成促进剂。随着甲醛量的增加，所制备的空心球的形态从单壳，卵黄壳，双壳变为三壳，然后折返。这些球具有较大的比表面积（约966 m 2/ g），均匀的中孔（〜4.5 nm）和大孔体积（1.37 cm 3 / g）。此外，蛋黄壳球已被成功地用于原位吸附和还原水溶液中的重金属离子。结果表明，它是一种有效的吸附剂，易于从水中浓缩。
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