CAJ | 학술논문

对介孔炭CMK-3进行单质硫改性得到OMC-S,并通过静态吸附实验研究了该材料对水溶液中汞的吸附性能.研究结果表明:单质硫改性可以在介孔炭上负载12.33%的硫,从而使得介孔炭对汞的吸附容量从185 mg/g提高到476 mg,/g;OMC-S具有较广的适用pH值范隔,在pH 3-11.5范围内其对汞的吸附去除率均达到92%以上;氯离子对OMC-S的吸附性能具有一定的抑制作用,原因在于它能和汞离子络合形成一系列吸附性能较差的Hg-Cl络合物,而腐殖酸在所研究的范嗣内对OMC-S的吸附性能无明显影响.
대개공탄CMK-3진행단질류개성득도OMC-S,병통과정태흡부실험연구료해재료대수용액중홍적흡부성능.연구결과표명:단질류개성가이재개공탄상부재12.33%적류,종이사득개공탄대홍적흡부용량종185 mg/g제고도476 mg,/g;OMC-S구유교엄적괄용pH치범격,재pH 3-11.5범위내기대홍적흡부거제솔균체도92%이상;록리자대OMC-S적흡부성능구유일정적억제작용,원인재우타능화홍리자락합형성일계렬흡부성능교차적Hg-Cl락합물,이부식산재소연구적범사내대OMC-S적흡부성능무명현영향.
An elemental sulfur-modified ordered mesoporous carbon (OMC-S) was prepared by impregna-ting elemental sulfur on the surface of CMK-3. Batch tests were performed to study aqueous Hg( Ⅱ ) adsorption properties of OMC-S. Results showed that 12.33% sulfur was impregnated onto CMK-3,and the Q(max)was in-creased from 185 mg/g to 476 mg/g. Hg adsorption removal rate was generally over 92% in the range of pH 3 to 11.5. The existence of Cl~- decreased Hg adsorption because of the formation of Hg-C1 complex which had wea-ker affinity to OMC-S comparing with Hg-OH complex. While the existence of HA did not show obvious impact on the Hg adsorption.