宁波大学学报：理工版
寧波大學學報：理工版
저파대학학보：리공판
Journal of Ningbo University(Natural Science and Engineering Edition)
2012年
3期
92-96
,共5页
大尺寸SiO2大孔材料%表面改性%吸附
大呎吋SiO2大孔材料%錶麵改性%吸附
대척촌SiO2대공재료%표면개성%흡부
Large-sized SiO2 macrolaorous materials%surface modification%adsorotion
以具有三维骨架结构的环氧树脂大孔聚合物为整体型模板，利用硅酸酯原位溶胶-凝胶过程和高温烧结法制备出大尺寸SiO2大孔材料，通过水热法用铝酸钠对材料进行表面改性，得到铝掺杂SiO2大孔材料（Al-SiO2），并用SEM、FTIR和XPS对大孔材料进行了表征．以Cu^2＋和Pb^2＋为模拟污染物，研究改性大孔材料的吸附性能．结果表明：改性大孔材料对Cu^2＋和Pb^2＋均具有良好吸附能力；Al-SiO2对Cu^2＋和Pb^2＋的最大吸附量分别为71mg·g^-1和138mg·g^-1，0．100gAl-SiO2对100mL50mg·L^-1水溶液中Pb^2＋的去除率达到95.3％，重复使用3次后的去除率保持在89．8％．
以具有三維骨架結構的環氧樹脂大孔聚閤物為整體型模闆，利用硅痠酯原位溶膠-凝膠過程和高溫燒結法製備齣大呎吋SiO2大孔材料，通過水熱法用鋁痠鈉對材料進行錶麵改性，得到鋁摻雜SiO2大孔材料（Al-SiO2），併用SEM、FTIR和XPS對大孔材料進行瞭錶徵．以Cu^2＋和Pb^2＋為模擬汙染物，研究改性大孔材料的吸附性能．結果錶明：改性大孔材料對Cu^2＋和Pb^2＋均具有良好吸附能力；Al-SiO2對Cu^2＋和Pb^2＋的最大吸附量分彆為71mg·g^-1和138mg·g^-1，0．100gAl-SiO2對100mL50mg·L^-1水溶液中Pb^2＋的去除率達到95.3％，重複使用3次後的去除率保持在89．8％．
이구유삼유골가결구적배양수지대공취합물위정체형모판，이용규산지원위용효-응효과정화고온소결법제비출대척촌SiO2대공재료，통과수열법용려산납대재료진행표면개성，득도려참잡SiO2대공재료（Al-SiO2），병용SEM、FTIR화XPS대대공재료진행료표정．이Cu^2＋화Pb^2＋위모의오염물，연구개성대공재료적흡부성능．결과표명：개성대공재료대Cu^2＋화Pb^2＋균구유량호흡부능력；Al-SiO2대Cu^2＋화Pb^2＋적최대흡부량분별위71mg·g^-1화138mg·g^-1，0．100gAl-SiO2대100mL50mg·L^-1수용액중Pb^2＋적거제솔체도95.3％，중복사용3차후적거제솔보지재89．8％．
Large-sized SiO2 macroporous materials are prepared using a three-dimensional （3D） skeletal epoxy resin macroporous polymer as template through an in situ sol-gel process of ethyl silicate and a subsequent calcination at high temperature. The SiO2 macroporous materials are modified with sodium aluminate through hydrothermal method. The Al-doped SiO2 macroporous materials （Al-SiO2） are obtained and characterized by SEM, FTIR and XPS. Cu^2＋ and Pb^2＋ are selected as simulative pollutants, the adsorption properties of the modified SiO2 macroporous materials are investigated. The results show that the modified macroporous materials have satisfactory adsorption capacity for Cu^2＋ and Pb^2＋. Using Al-SiO2 as adsorbents, the maximum adsorption capacities of Cu^2＋ and Pb^2＋ are 71 mg.g^-1 and 138 mg.g^-1, respectively. The removal efficiency of Pb^2＋ is found to be 95.3% at an initial concentration of 50 mg·L^-1, 100 mL aqueous solution and 0.100 g Al-SiO2. After 3 cycles of adsorption, 89.8% removal efficiency of Pb^2＋ is maintained.
