Conversion of extracted titanium tailing and waste glass to value-added porous glass ceramic with improved performances
Conversion of extracted titanium tailing and waste glass to value-added porous glass ceramic with improved performances
复制标题
将提取的钛尾矿和废玻璃转化为具有改进性能的增值多孔玻璃陶瓷
DOI：
10.1016/j.jenvman.2020.110197
复制
发表时间：
2020
影响因子：
8.7
通讯作者：
Liu Jingbo Louise
中科院分区：
文献类型：
--
作者：
Xi Cuiping;Zhou Jianmin;Zheng Feng;Gao Jian-ming;Hu Pengfei;Li Yang;Zhen Qiang;Bashir Sajid;Liu Jingbo Louise
One of the major advances of this research is to produce porous glass ceramics (PGCs) via a feasible and cost-effective powder forming chemistry to convert solid wastes, extracted titanium tailing (ETT) and waste glass (WG) into the value-added PGCs. The maximum handling amount of ETT (30%) is determined from systematic experiments, based on the end use of these PGCs, which are manifested as controlled-crystalline porous structures of hybrid matrices. These multiscale porous networks are composed of a tunable pore size, high surface area and accessibility. The synthetic PGCs are found to display enhanced physical properties, as a result, the stewardship of their intrinsic chemical behaviors can be secured. To elucidate, the PGC shows an apparent density of 0.60 ± 0.01 g cm−3, a porosity of 76.0 ± 0.4%, a high compressive strength of 3.8 ± 0.2 MPa, an available water adsorption ratio of 4.4 ± 0.1%, a heat conductivity of 0.103 ± 0.003 W m−1°C−1and an applicable coefficient of thermal expansion ((5.43 ± 0.05) × 10−6m m−1°C−1). This study indicates that indeed the powder forming chemistry provide a simple method to advance the conversion of industry and municipal solid waste (ETT & WG) into value-added PGCs with improved physical and chemical properties.
