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2016年12月8日，第十四屆國際華人有機化學(xué)和第十一屆國際無機化學(xué)研討會在新加坡國立大學(xué)開幕，來自美國、澳大利亞、瑞士、日本、新加坡、中國大陸、香港、臺灣等國家和地區(qū)的200多位專家、學(xué)者出席了本次大會，共同探討世界有機化學(xué)和無機化學(xué)領(lǐng)域最前沿技術(shù)的動向與發(fā)展，會議為期三天。

開幕式當日，廈門大學(xué)水科技與政策研究中心首席科學(xué)家、廈門大學(xué)材料學(xué)院教授藍偉光博士應(yīng)邀出席了這次盛會，并為全體大會作了一場題為“陶瓷膜技術(shù)的創(chuàng)新：從2D傳統(tǒng)膜過濾到3D納濾芯凈化”的主題演講。藍偉光博士以如何解決世界面臨的飲用水安全問題作為切入點，介紹了他所率領(lǐng)的團隊以目標為導(dǎo)向，逆向思維，針對目前市場上流行的幾大凈水技術(shù)在去除化學(xué)微污染與保留有益礦物質(zhì)顧此失彼的尷尬，創(chuàng)新開發(fā)新一代基于3D納濾的凈水5.0技術(shù)的過程，詳細介紹了3D納濾芯科技的技術(shù)特征、分離機理及使用效果，并將其與2008年3月美國耶魯大學(xué)、麻省理工學(xué)院等知名大學(xué)的專家在世界頂尖的Nature雜志發(fā)表的題為“未來幾十年水凈化的科學(xué)與技術(shù)”一文所倡導(dǎo)的目標相比較，表明3D納濾芯技術(shù)的多項指標均超出了該文的期待。藍偉光博士的報告受到了與會專家、學(xué)者的高度評價，他所提出的通過逆向思維，把市場的難題作為科研的課題，集中力量攻關(guān)解決問題的思路亦受到了與會專家、學(xué)者們的充分肯定，引起了積極反響。藍偉光博士率領(lǐng)團隊創(chuàng)新開發(fā)的基于3D納濾的凈水5.0技術(shù)也因此受到了得到了廣泛的關(guān)注與重視。

本次會議主席、2016年新加坡總統(tǒng)科學(xué)獎得主、新加坡國立大學(xué)劉小鋼教授親自主持了藍偉光博士的主題演講。

另附藍偉光博士演講摘要：

Innovation of ceramic membrane filtration: from 2D permeation to 3D nanopurification

Yihong Lan1, Minmin Zhang1, Yubin Hong1,2, Weiguang Lan1,3

1 Research & Development Dept, Suntar Membrane Technology Limited, Singapore 569059

2 College of Materials, Xiamen University, China 361005

3 Applied Membrane Technology R & D Centre of Xiamen University, China 361005

Membrane filtration is a technique employed to separate solutes from a liquid through a semi-permeable material by a driving force. Depending on the pore size, membrane filtration can be classified as microfiltration, ultrafiltration, nanofiltration or reverse osmosis. Membranes are either polymeric or ceramic depending on the material. Traditionally, membranes comprise a 2D thin active layer acting as a selective barrier and a thick support layer ensuring structural integrity. Selectivity and permeability, the two working specifications of a membrane, are primarily dependent on the membrane’s pore size. Achieving high selectivity while maintaining high permeability has been a longstanding challenge for membrane filtration processes. It is also nearly impossible to separate two different solutes with similar sizes through traditional membrane filtration processes since separation in porous membranes occurs through molecular sieving. Aiming to overcome limitations of traditional 2D membrane filtration, this study is the first to introduce a 3D membrane filtration process employing three layers: one thick intermediate layer with absorption & filtration properties stemming from the integration of ceramic materials and customised active carbon with nanopores; as well as two thin supporting ceramic layers coating the internal and external surfaces of the thick active layer in the middle. This 3D membrane filtration mechanism abides by the adsorption-solution-diffusion-filtration model based on the absorptivity and chemical properties of the solutes to achieve nanopurification. It is a revolutionary innovation for membrane filtration to go from 2D permeation to 3D nanopurification, because the latter can achieve both higher selectivity and permeability at the same time. By applying this 3D membrane filtration process to drinking water purification, the removal of micropollutants and retention of minerals will be achieved simultaneously. Moreover, this process can be carried out at normal tap water pressure.