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hellen7256木蟲 (小有名氣)
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[求助]
求助文獻(xiàn)翻譯,謝謝!英譯中。
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In our previous work, we successfully prepared NaA zeolites through hydrothermal processes using chemosynthetic low silicon geopolymers [15-16]. Geopolymers are non-crystalline or quasi-crystalline gels with three-dimensional network structures that were first introduced by Joseph Davidovits in 1978 [17]. In general, geopolymers are prepared from natural minerals or solid wastes through the polymerization of silicon-oxygen tetrahedra and aluminum-oxygen tetrahedra [17-19]. However, in this work, the geopolymers were synthesized through the sol-gel method to overcome the disadvantage of using impure raw materials [20-21]. In this paper, we report the preparation and study of an Al2O3-2SiO2-Na2O geopolymer membrane transformed in situ into a self-supporting NaA zeolite membrane through a hydrothermal process. The preliminary results from the desalination of NaCl solutions using the self-supporting NaA membrane were also reported. In this paper, we first prepared inorganic membranes of an Al2O3-2SiO2-Na2O geopolymer through a gel casting process and then transformed the material into a NaA zeolite through a hydrothermal procedure. Hence, self-supporting zeolite membranes may be prepared through a hydrothermal synthesis procedure using a geopolymer gel according to the directions shown in Fig. 1. |
金蟲 (著名寫手)
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在我們以前的研究中,使用化學(xué)合成的低硅地質(zhì)聚合物通過(guò)熱液作用成功地制備了NaA沸石[15-16]。地質(zhì)聚合物是具有三維網(wǎng)絡(luò)結(jié)構(gòu)的非晶性或準(zhǔn)結(jié)晶性的凝膠,是由Joseph Davidovits在1978年首先提出的[17]。一般情況下地質(zhì)聚合物是由天然的礦物或固體廢物通過(guò)硅氧四面體和鋁氧四面體的聚合反應(yīng)制備的[17-1然而,在本研究中,為了克服使用不純的原料的缺點(diǎn),地質(zhì)聚合物是通過(guò)溶膠-凝膠法合成的[20 - 21]。20-21]. 本文中報(bào)告了一種通過(guò)熱液作用原位轉(zhuǎn)換成自承NaA沸石膜板的Al2O3-2SiO2-Na2O地質(zhì)聚合物膜板的制備和研究。還報(bào)告了使用自承NaA膜板進(jìn)行NaCl溶液脫鹽的初步結(jié)果。 本文中首先通過(guò)凝膠澆鑄方法然后通過(guò)熱液方法將這種材料轉(zhuǎn)換成NaA沸石制備了Al2O3-2SiO2-Na2O地質(zhì)聚合物的無(wú)機(jī)膜。綜上所述,按照?qǐng)D1所示的指導(dǎo),自承沸石膜板可以使用一種地質(zhì)聚合物凝膠通過(guò)熱液合成方法進(jìn)行制備。 |
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