多孔镁铝尖晶石纳米粉体的合成及其吸附性能研究
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摘要
以无水氯化铝、无水氯化镁和无水乙醇为原料,采用非水解溶胶-凝胶法合成多孔镁铝尖晶石纳米粉体,经XRD、SEM、BET、UV-Vis及纳米粒度分析仪等表征了粉体物相、形貌及吸附特性等。结果表明,经900℃下可制备出物相单一、球形的MgAl2O4粉体,粉体平均粒径为35 nm,存在较为丰富的孔道结构,比表面积较大为70. 03 m2/g,平均孔径为15 nm,其对亚甲基蓝染料的去除率为64%。
Taking anhydrous aluminum chloride,anhydrous magnesium chloride and anhydrous ethanol as raw materials,magnesium aluminate spinel powder was synthesized by non-hydrolyzable sol-gel method. The phase,morphology,particle size and adsorption characteristics of the powder were characterized by XRD,SEM,BET,nano-particle size analyzer and UV spectrophotometer. The results showed that the single-grained magnesium aluminate spinel powder could be prepared at 900 ℃. The average particle size of the powder was 35 nm. There was a rich pore structure.The specific surface area of the powder particles was 70. 03 m2/g,and the average aperture was 15 nm. The removal rate of methylene blue dye by magnesium aluminum spinel powder was 64%.
Taking anhydrous aluminum chloride,anhydrous magnesium chloride and anhydrous ethanol as raw materials,magnesium aluminate spinel powder was synthesized by non-hydrolyzable sol-gel method. The phase,morphology,particle size and adsorption characteristics of the powder were characterized by XRD,SEM,BET,nano-particle size analyzer and UV spectrophotometer. The results showed that the single-grained magnesium aluminate spinel powder could be prepared at 900 ℃. The average particle size of the powder was 35 nm. There was a rich pore structure.The specific surface area of the powder particles was 70. 03 m2/g,and the average aperture was 15 nm. The removal rate of methylene blue dye by magnesium aluminum spinel powder was 64%.
引文
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[12]霍地,皮春阳,孙旭东,等.纳米镁铝尖晶石粉体的低温燃烧合成与表征[J].东北大学学报(自然科学版),2017,38(6):814-818.
[13]刘玉荣.介孔碳材料的合成及应用[M].北京:国防工业出版社,2012:10-50.
[14] Lee P Y,Suematsu H,Yano T,et al. Synthesis and Characterization of Nanocrystalline Mg Al2O4Spinel by Polymerized Complex Method[J].Journal of Nanoparticle Research,2006,8(6):911-917.
[15] Wen-Ling JI,Heng-Yong WEI,Hui LI,et al. Synthesis and adsorption properties of mesoporous Mg Al2O4spinel fibers by coaxial electrospinning[J]. Journal of the Ceramic Society of Japan,2018,126(2):128-134.
[16] Ismail B,Hussain S T,Akram S. Adsorption of methylene blue onto spinel magnesium aluminate nanoparticles:Adsorption isotherms,kinetic and thermodynamic studies[J]. Chemical Engineering Journal,2013,219:395-402.
[2] Bhaduri S. Microstructural and mechanical properties of nanocrystalline spinel and related composites[J]. Ceramics International,2002,28(2):153-158.
[3] Ji-Guang Li,Ikegami T,Jong-Heun Lee,et al. Fabrication of Translucent Magnesium Aluminum Spinel Ceramics[J]. Journal of the American Ceramic Society,2000,83(11):2866-2868.
[4] Carmen Baudín, Rafael Martínez, Pena P. High-Temperature Mechanical Behavior of Stoichiometric Magnesium Spinel[J]. Journal of the American Ceramic Society,1995,78(7):1857-1862.
[5] Edson Luiz Foletto,Sérgio Luiz Jahn,Regina de Fátima Peralta Muniz Moreira. Synthesis of High Surface Area Mg Al2O4Nanopowder as Adsorbent for Leather Dye Removal[J]. Separation Science and Technology,2009,44(9):2132-2145.
[6] Ismail B,Hussain S T,Akram S. Adsorption of methylene blue onto spinel magnesium aluminate nanoparticles:Adsorption isotherms,kinetic and thermodynamic studies[J]. Chemical Engineering Journal,2013,219:395-402.
[7] Junying Tian,Peng Tian,Guiling Ning,et al. Synthesis of porous Mg Al2O4spinel and its superior performance for organic dye adsorption[J]. Rsc Advances,2014,5(7):5123-5130.
[8]占文,王周福,张保国,等.低热固相法合成镁铝尖晶石[J].稀有金属材料与工程,2009,38(S2):34-37.
[9]武小娟,李俊寿,王明远,等.镁铝尖晶石粉体的制备方法[J].兵器材料科学与工程,2015,38(3):136-139.
[10]赵春娟.高纯镁铝尖晶石粉体的制备研究[D].大连:大连交通大学,2014.
[11]魏恒勇,王合洋,魏颖娜,等.非水解和水解溶胶-凝胶法合成Mg Al2O4粉体对比研究[J].人工晶体学报,2013,42(7):1384-1389.
[12]霍地,皮春阳,孙旭东,等.纳米镁铝尖晶石粉体的低温燃烧合成与表征[J].东北大学学报(自然科学版),2017,38(6):814-818.
[13]刘玉荣.介孔碳材料的合成及应用[M].北京:国防工业出版社,2012:10-50.
[14] Lee P Y,Suematsu H,Yano T,et al. Synthesis and Characterization of Nanocrystalline Mg Al2O4Spinel by Polymerized Complex Method[J].Journal of Nanoparticle Research,2006,8(6):911-917.
[15] Wen-Ling JI,Heng-Yong WEI,Hui LI,et al. Synthesis and adsorption properties of mesoporous Mg Al2O4spinel fibers by coaxial electrospinning[J]. Journal of the Ceramic Society of Japan,2018,126(2):128-134.
[16] Ismail B,Hussain S T,Akram S. Adsorption of methylene blue onto spinel magnesium aluminate nanoparticles:Adsorption isotherms,kinetic and thermodynamic studies[J]. Chemical Engineering Journal,2013,219:395-402.