R&D

Front research of our team

       This team is an interdisciplinary team, which take chemical, material as well as microbial technology research as the foundation to combine the basic research with applied research. In order to solve actual environmental problems, the team achieved making the products to meet technical standards and applied technology to the market, providing the market with perfect environmental purificatory materials for water treatment and heavy-metal-pollutioned soil. What’s more, it has presided over more than 30 subjects of ministry of science and technology, Shanghai, unep and un-habitat and industry since 2005. In addtion to publishing more than 200 papers at home and abroad, the team has obtained more than 20 authorizational patents for invention.

       The team successfully developed a new type of iron series coagulant, poly silicon and aluminum ferric chloride coagulant, high purity and enhanced polyaluminium chloride, composite aluminum and iron, poly silicon ferric sulfate, polymeric ferric chloride, polyepoxysuccinic acid and polyaspartic acid in water treatment chemicals research. Its scale inhibitor and corrosion inhibitor without phosphorus, scale inhibitor for water reuse in oil field, repairation for industrial pollutional fields and farmland with heavy metal pollution, and the comprehensive utilization of steel and stainless steel pickling waste liquor and a complete set of resource recovery technology has been uesed in several domestic provinces and cities and more than 40 countries, which create a good benefit both in economy society. Recently, the team expanded it into nanometer functional adsorption materials, whice has achieved very good results in the removal of heavy metals, the sewage depth processing, the reuse of waste water and the repairation of heavy metal contaminated sites.

Figure 1. The adsorption mechanism of ZIF-8 on arsenic

 

        In 2015, based on the previous study of adsorption performance and adsorption mechanism of novel porous materials, Professor Li and his team made further research on the preparation and synthetic route of the typical porous material, Which will lay a solid foundation for the ultimate realization of the oriented design and scale production of the environmental functional materials. Related research work including using different metal resource for the preparation of MIL-53 (Al)-materials, preparation of MIL-53(Al) material decorated by a nanoscale-thin layer of highly crystalline anatase TiO2, and a method for MOF deposition on “inert” polymer surfaces to fabricated hierarchically structured porous films have been published in some international top journals (Chemistry-A European Journal, Chemical Communications, etc.). In addition, a newly developed nano functional material ZIF-8 has been used to adsorb trace heavy metals arsenic (As) in water, the adsorption quantity under low concentration (10μg/L) reached the peak of reported literature 76.5 mg/g. In addition, his team applied the footprints methodology for better understanding of how WWTPs interact with the hydrologic cycle, energy resources and climate, which is helpful and important for the design of future WWTPs.

        Figure 2. Schematic illustration of the preparation of the core–shell architecture MIL-53(Al)@TiO2 nanocomposites based on the support of redundant ligands H2BDC in the framework.