CAJ | 학술논문

以硅藻土为主要原料,采用固相烧结法和低温煅烧工艺,制备了硅藻土基多孔陶瓷.着重考察了电气石对材料的微观结构、孔径分布等材料孔结构及孔雀石绿溶液脱色能力的影响,通过扫描电镜、压汞仪等手段对不同电气石含量的硅藻土基多孔陶瓷进行了表征.结果表明:当电气石含量为12%时,材料内孔径细小,平均孔径最小177.5 nm,比表面积最大6.83 m2/g;电气石含量由0提高到16%,材料的孔隙率由49.3%降至36.5%,对孔雀石绿溶液的脱色能力逐渐增强.当电气石含量为16%时,反应6 h后,412 nm与618 nm处吸收峰消失.
이규조토위주요원료,채용고상소결법화저온단소공예,제비료규조토기다공도자.착중고찰료전기석대재료적미관결구、공경분포등재료공결구급공작석록용액탈색능력적영향,통과소묘전경、압홍의등수단대불동전기석함량적규조토기다공도자진행료표정.결과표명:당전기석함량위12%시,재료내공경세소,평균공경최소177.5 nm,비표면적최대6.83 m2/g;전기석함량유0제고도16%,재료적공극솔유49.3%강지36.5%,대공작석록용액적탈색능력축점증강.당전기석함량위16%시,반응6 h후,412 nm여618 nm처흡수봉소실.
Using diatomite as the main material, the diatomite-based porous ceramics were prepared by solid-phase sintering and low-temperature calcination process. The influence of tourmaline content on materials' microstructure, pore size distribution and the decolorization ability for malachite green aqueous solution was priority studid by scanning electron microscopy, Hg porosimetry,and so on. The results indicate that sample with 12% tourmaline has average aperture smallest 177.5 nm and biggest specific surface area 6.83 m2/g; Tourmaline content is enhanced from 0 to 16%, the materials' porosity decrease from 49.3% to 36.5% and materials' decolorization ability to malachite green solution's strengthens gradually. When tourmaline content is 16%, malachite-green aqueous solution is completely decolored in 6 h and the absorption peaks at 412 nm, 618 nm disappears.