电气石/硅藻土基内墙砖的制备及室内甲醛净化  

Preparation of Tourmaline/diatomite Inner Wall Tile and Properties to Formaldehyde Purification

作　　者：高如琴[1] 黄豆豆[1] 程萌[1] 全建军 王紫括[3] 

机构地区：[1]华北水利水电学院环境科学与工程研究所,郑州450001 [2]河南省耕生高温材料有限公司,郑州450001 [3]河南大学,开封475001

出　　处：《硅酸盐通报》2012年第6期1449-1452,1456,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家十二五科技支撑计划(2011BAB03B07);河南省教育厅自然科学研究计划项目(2011B610005);华北水利水电学院科研启动金(200930)资助项目

摘　　要：以硅藻土为主要原料,添加适量电气石粉和烧结助剂,采用超细湿式研磨工艺制备釉浆,并浸渍在硅藻土基多孔陶瓷表面及孔道,通过低温煅烧,制备电气石/硅藻土基内墙砖。结合X射线衍射、扫描电子显微镜、傅里叶变换红外光谱仪等手段对材料进行了表征;以甲醛气体为目标污染物,探讨了材料对其吸附和降解能力。结果表明:所制备的电气石/硅藻土基内墙砖,硅藻土原始孔结构与颗粒堆积形成的孔隙构成了有机整体;材料釉层经870℃煅烧,电气石的结构和性能并未发生改变;电气石/硅藻土基内墙砖对甲醛气体具有很好的吸附和降解能力,1 m3的环境舱内初始浓度为0.303 mg/m3的甲醛经5 h的净化,其浓度降至0.0782 mg/m3。Using diatomite as main materials,glaze slip was prepaerd with proper ultra-fine tourmaline,binding agent addition and wet-superfine milling,impregnated on the surface of diatomite based porous ceramic,and calcined in low-temperature.The material was characterized by X-ray diffraction,scanning electron microscope,and Fourier transform infrared spectrum.The ability of adsorption and degradation to formaldehyde was discussed.The results indicate that diatomite original pores and particle accumulation forming holes in tourmaline/diatomite inner wall tile constitute a organic whole;The structure and properties of tourmaline not change in 870 ℃ calcination;Materials have strong ability of adsorption and degradation to formaldehyde,and the concentration of formaldehyde drops to 0.0782 mg/m3 from 0.303 mg/m3 in 1 m3 environmental chamber in 5 h.

关 键 词：硅藻土基多孔陶瓷 电气石 内墙砖 甲醛 吸附与降解 

分 类 号：TD98[矿业工程—选矿]