【作者】 何晓云；

【导师】 陈震； 郑晓虹；

【作者基本信息】 福建师范大学 ， 物理化学， 2006， 硕士

【摘要】 采用有机溶剂热生长技术，直接合成的纳米MoS₂复合液，以ITO为基体用电化学法制备的聚吡咯（PPy）膜，并用浸渍提拉法制备MoS₂/PPy复合膜；采用Sol-Gel法制备Y³⁺掺杂TiO₂纳米粒子，以经过Fe³⁺改性交联的高分子羧甲基纤维素（CMC-Fe）膜作为ZiO₂负载，制得Y₂O₃-TiO₂/CMC-Fe复合膜。并使用X射线衍射，红外光谱，透射电镜，荧光光谱对上述两种无机/有机复合膜进行表征。 以Y₂O₃-TiO₂/CMC-Fe复合膜对亚甲基蓝（MB）溶液模拟废水进行降解，掺杂了Y³⁺的TiO₂降低电子-空穴间的复合，提高了光催化性能。并研究了CMC-Fe膜对模拟废水的吸附性能。考察CMC膜与Fe³⁺不同的交联时间、温度、染料分子量对吸附效果的影响。并以CMC-Fe膜作为电生成制备高铁酸盐阴阳两室间的隔膜，CMC-Fe膜具有离子交换和选择渗透性，能有效的阻止FeO₄^2-向阴极室扩散，且能有效地补充阳极室电生成高铁酸盐时OH^-的消耗。更多还原

【Abstract】 Nanosize M0S2 semiconductor particles were synthesized by using the solvothermal technique. PPy membranes were prepared by electro-chemistry method onto the indium-tin oxide glass （ITO）. The nanoparticles MoS₂/PPy composite membranes were acquired by the dipping process. Nanosize Y₂O₃-TiO₂ particles were prepared by the sol-gel process. Y³⁺-doped TiO₂ immobilized on Carboxymethyl cellulose （CMC） membranes which were modified by Fe³⁺. Organic/inorganic nano-hybrid membranes were studied by XRD、IR、 TEM、 PL methods.Azo-dye methylene bule（MB） can be decolored and degrade via photocatalysis of Y₂O₃-doped TiO₂ immobilized on CMC-Fe membranes. The particles of Y³⁺-doped TiO₂ can excite to yield more electron-hole pairs and increased the degradation activity. The paper studied the adsorption behavior of CMC-Fe membranes for waste water, based on the effects of cross-linking time of CMC-Fe membranes、 temperature and the molecular weight of dyes. CMC-Fe membranes were used as separator in electro-generated FeO₄^2-. The membrane had ion select and permeability characteristics which could reject the FeO₄^2- through cathode room.更多还原