【作者】 齐娜； 张雪洁； 王巧芝； 秦妍； 李英；

【Author】 Na Qi;Xuejie;Zhang;Qiaozhi;Wang;Yan Qin;Ying li;Key Lab for Colloid and Interface Chemistry of State Education Ministry, Shandong University;

【机构】 山东大学化学与化工学院胶体与界面教育部重点实验室；

【摘要】 近年来,工业发展导致的环境污染问题在全球范围内引发高度关注,污染治理刻不容缓。工业场地污染往往同时存在严重的重金属和有机物污染,环境隐患极大,急需开展快速高效的修复治理,但现有技术尚不能满足需求。本课题组采用天然来源的多糖聚合物组装构建具有特定微结构的水凝胶和气凝胶,在水溶液中可吸附重金属离子原位生成具有光催化活性的纳米颗粒,在水相中及气相中对有机污染物均具有良好吸附作用,有效促进有机污染物快速光催化降解为二氧化碳和水,可实现对重金属和有机物复合污染水和土壤的快速高效治理。该新技术路线基于可控胶体组装,利用界面分子工程原理,采用天然来源可再生原料,不仅将重金属元素的去除和利用巧妙地结合在一起,并且可同时实现重金属和有机污染物的高效去除,因此在工业场地水和土壤污染治理方面具有重要的应用前景。此外,气凝胶材料在大气污染治理方面亦有应用潜力。更多还原

【Abstract】 In recent years, the problem of environmental pollution caused by industrial development has aroused great concern all over the world, the treatment and abatement of pollution is an urgent demand for the whole society. Industrial site pollution is often accompanied by serious heavy metal and organic pollution, of which the environmental hazards are extremely great, and rapid and efficient repair and management are urgently needed, while the existing technology can not sufficiently meet the demand. Our group uses the natural derived polysaccharide polymer assembly to construct the hydrogel and the aerogel with specific microstructure, which can adsorb the heavy metal ion in polluted water to produce photocatalytic activity nanoparticles in situ, and has the good adsorption capability to the organic pollutant both in aqueous solution and gas phase, which guarantees the organic pollutant could be rapidly degraded through photocatalytic reactions, changing to carbon dioxide and the water, thereby efficient treatment of both heavy metals and organic pollution could be rapidly acheved. The new technology route is based on controllable colloidal assembly, using the principle of interfacial molecular engineering, utilizing natural source renewable raw materials, through which not only the removal and utilization of heavy metal elements was smartly combined, but also the efficient removal of heavy metals and organic pollutants was completed. So the technique has a broad application prospects in water and soil pollution control. Besides, the aerogel materials also have important application potential in air pollution treating.更多还原