Porous Glass Microspheres from Alkali-Activated Fiber Glass Waste

被引：14

作者：

Mahmoud, Mokhtar ^{[1
,2
]}

Kraxner, Jozef ^{[1
]}

Kankova, Hana ^{[1
]}

Hujova, Miroslava ^{[1
]}

Chen, Si ^{[1
]}

Galusek, Dusan ^{[1
,3
]}

Bernardo, Enrico ^{[2
]}

机构：

[1] Alexander Dubcek Univ Trencin, Ctr Funct & Surface Functionalized Glass, FunGlass, Trencin 91150, Slovakia

[2] Univ Padua, Dept Ind Engn, I-35131 Padua, Italy

[3] TnUAD & FChFT STU, Joint Glass Ctr IIC SAS, Trencin 91150, Slovakia

来源：

MATERIALS | 2022年 / 15卷 / 03期

基金：

欧盟地平线“2020”;

关键词：

up-cycling; glass waste; alkali activation; flame synthesis; porous glass microspheres; KINETICS;

D O I：

10.3390/ma15031043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fiber glass waste (FGW) was subjected to alkali activation in an aqueous solution with different concentrations of sodium/potassium hydroxide. The activated materials were fed into a methane-oxygen flame with a temperature of around 1600 degrees C. X-ray diffraction analysis confirmed the formation of several hydrated compounds, which decomposed upon flame synthesis, leading to porous glass microspheres (PGMs). Pore formation was favored by using highly concentrated activating alkali solutions. The highest homogeneity and yield of PGMs corresponded to the activation with 9 M KOH aqueous solution.

引用

页数：9

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