CAJ | 학술논문

研究了改性介孔硅基材料（以下简称MCM-41）对污水中重金属铜离子的吸附行为。在MCM-41材料中加入Al、Ti两种诱因金属离子来合成新的Al-Ti-MCM-41及Ti-Al-MCM-41改性材料,通过氮气吸附―脱附等温线对Al-Ti-MCM-41（1∶1）样品进行了表征,考察了吸附剂的投加量、Cu2＋初始浓度和吸附温度对吸附的影响。结果表明：改性Al-Ti-MCM-41材料的比孔容分别为0.04 cm3/g,由BJH孔径分布计算模型计算得到的平均孔径为17.02 nm,对Cu2＋的吸附率达到99.5%;Cu2＋的吸附容量和吸附率随Al-Ti-MCM-41介孔材料投加量的增加而降低,随Cu2＋初始浓度的增大而提高;温度越高越有利于吸附。
연구료개성개공규기재료（이하간칭MCM-41）대오수중중금속동리자적흡부행위。재MCM-41재료중가입Al、Ti량충유인금속리자래합성신적Al-Ti-MCM-41급Ti-Al-MCM-41개성재료,통과담기흡부―탈부등온선대Al-Ti-MCM-41（1∶1）양품진행료표정,고찰료흡부제적투가량、Cu2＋초시농도화흡부온도대흡부적영향。결과표명：개성Al-Ti-MCM-41재료적비공용분별위0.04 cm3/g,유BJH공경분포계산모형계산득도적평균공경위17.02 nm,대Cu2＋적흡부솔체도99.5%;Cu2＋적흡부용량화흡부솔수Al-Ti-MCM-41개공재료투가량적증가이강저,수Cu2＋초시농도적증대이제고;온도월고월유리우흡부。
Adsorption behavior of Cu（Ⅱ） ions from wastewater of new chemically modified material MCM-41（mobil composition of matters） was studied.Two new kinds of material（Al-Ti-MCM-41 and Ti-Al-MCM-41） have been chemically modified with Al,Ti ions.The sample of Al-Ti-MCM-41（1∶1） was characterized by nitrogen adsorption and desorption isotherms data.The adsorption of Cu2＋ on the modified materials was investigated.The effects of adsorbent dosage,temperature and initial concentration on the adsorption capacity were investigated in detail.The results showed that： The pore volume of Al-Ti-MCM-41was 0.04 cm3/g,the BJH （Barret-Joyner-Halenda） average diameter was 17.02 nm.Cu2＋ was adsorbed quantitatively to the Al-Ti-MCM-41,and the absorption ratio was 99.95%.The adsorption capacity and removal percentages of Cu2＋ decreased with the adsorbent dosage increased but increased with the initial concentration increased.A higher temperature was in favor of adsorption.