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主講人：李建新

地點(diǎn)：國(guó)家重點(diǎn)實(shí)驗(yàn)室大樓四樓中庭報(bào)告廳

時(shí)間：2019年12月19日（星期四）下午2:00

主講人介紹：

李建新，男，湖北武漢市人，南非斯坦陵布什大學(xué)博士、天津工業(yè)大學(xué)材料科學(xué)與工程學(xué)院教授、博士生導(dǎo)師。天津市特聘教授、分離膜與膜過(guò)程省部共建國(guó)家重點(diǎn)實(shí)驗(yàn)室學(xué)術(shù)帶頭人、天津市分離膜科學(xué)與技術(shù)國(guó)際聯(lián)合研究中心負(fù)責(zé)人、教育部科研創(chuàng)新團(tuán)隊(duì)負(fù)責(zé)人、天津市131創(chuàng)新團(tuán)隊(duì)負(fù)責(zé)人。國(guó)家百千萬(wàn)人才工程國(guó)家級(jí)人選（國(guó)家有突出貢獻(xiàn)中青年專(zhuān)家）、中國(guó)科學(xué)院百人計(jì)劃、中國(guó)紡織學(xué)術(shù)帶頭人。國(guó)際刊物Journal of Water Sustainability 編輯（EDITOR）、Journal of Water Reuse and Desalination國(guó)際編委、《膜科學(xué)與技術(shù)》編委。Vice-Chairman of IWA China Task Force on Membrane Technology （國(guó)際水協(xié)會(huì)膜技術(shù)專(zhuān)家委員會(huì)中國(guó)分會(huì)副主席）。主講《膜科學(xué)與技術(shù)》、《材料制備工藝與設(shè)計(jì)》、《材料科學(xué)導(dǎo)論》等。長(zhǎng)期從事面向水資源化、清潔能源及清潔生產(chǎn)、生物質(zhì)等高效利用與轉(zhuǎn)化中所涉及的綠色催化、膜分離科學(xué)基礎(chǔ)及應(yīng)用研究和相關(guān)的本科生和研究生教學(xué)工作。

主要內(nèi)容：

Arsenic is a common, naturally occurring drinking water contaminant. Therein, inorganic arsenite (As (III)) with a higher toxicity than inorganic arsenate (As (V)) is hard to be removed by nanofiltration (NF). We proposed an integrated process of electrocatalytic membrane reactor and NF for the high efficiency removal of Arsenic. In particular, MnO2 nanowires were loaded on porous flat-sheet carbon membrane with pore size of 0.7 μm by the hydrothermal method to prepare a MnO2 NW/CM electrode, which was employed to constitute an electrocatalytic membrane reactor (ECMR) for the oxidation of NaAsO2 (As (III)) to NaH2AsO4?7H2O (As (V)). The concentration of NaAsO2 aqueous solution used was 10 mg/L. 15 g/L Na2SO4 was used as electrolytes. Results showed that the conversion rate of As (III) to As (V) was up to 96.0% under the ECMR operating with the pH value of 9.0, and current density of 0.4 mA cm?2 and residence time of 10 min. Interestingly, a commercial NF membrane was employed to filter the resultant permeate with 2 mg/L As (III) from ECMR. The arsenic rejection of NF was up to 99.5%. The concentration of Arsenic in the final result permeate was 9.5 μg/L, which is lower than World Health Organization (WHO) Guideline value for drinking water of 10 μg/L of Arsenic. In summary, our study provides a simple and efficient approach to remove Arsenic from the aquatic solution.

主辦單位：材料化學(xué)工程國(guó)家重點(diǎn)實(shí)驗(yàn)室