全校師生：
我校定于2017年12月11日舉辦研究生靈犀學(xué)術(shù)殿堂——張?jiān)?bào)告會(huì)，現(xiàn)將有關(guān)事項(xiàng)通知如下：
1.報(bào)告會(huì)簡(jiǎn)介
報(bào)告人：張?jiān)〗淌?/p>
時(shí) 間：2017年12月11日（星期一） 上午10：00
地 點(diǎn)：友誼校區(qū) 公字樓328
主 題：氮化碳結(jié)構(gòu)調(diào)控在分子發(fā)光分析中的應(yīng)用
內(nèi)容簡(jiǎn)介：Chemical structures of two-dimensional (2D) nanosheet can effectively control the properties thus guiding their applications. However, carbon nitride nanosheets (CNNS) with tunable chemical structures and sizes had been rarely explored, thus impeding the boost of performances. Herein, we demonstrate that CNNS with tunable chemical structures can be obtained by liquid-exfoliation of facile accessible bulk carbon nitride with different polymerization degree. In comparison with previous methods, the proposed route was green, not requiring any additives, toxic solvents or preintercalation steps. Interestingly, the ECL of as-prepared CNNS was significantly modulated, and exhibited unusual changes in quenching and enhancement upon adding different metal-ions. Such advantage was further applied to construct sensors for multiple metal-ions without any labeling and masking reagents. The detection limit estimated at a signal-to-noise of 3, of Cu2+, Ni2+, and Cd2+ were 250 nM, 1 nM and 20 nM, respectively, which was 2~340 times lower than the maximum level in drinking water permitted by WHO. It was further revealed that the strong ECL quenching effect was due to the inner filter effect/electron transfer process and the enhancement was due to the catalytic effect. It would open a vista to explore 2D carbon-rich materials for a wide range of applications such as sensing with enhanced performances based on new mechanism.
2.歡迎各學(xué)院師生前來(lái)聽(tīng)報(bào)告。報(bào)告會(huì)期間請(qǐng)關(guān)閉手機(jī)或?qū)⑹謾C(jī)調(diào)至靜音模式。
黨委研究生工作部
材料學(xué)院
2017年12月8日
報(bào)告人簡(jiǎn)介
張?jiān)。?998年-2007年先后在南京大學(xué)強(qiáng)化部和中國(guó)科學(xué)院長(zhǎng)春應(yīng)用化學(xué)研究所學(xué)習(xí)獲學(xué)士和博士學(xué)位，2008年-2012年先后在德國(guó)馬普膠體界面研究所和日本國(guó)立物質(zhì)材料研究所國(guó)際青年科學(xué)家中心從事科研任博士后和ICYS Researcher，2012年起受聘于東南大學(xué)化學(xué)化工學(xué)院，任教授、博士生導(dǎo)師。作為項(xiàng)目負(fù)責(zé)人承擔(dān)國(guó)家自然科學(xué)基金委、日本學(xué)術(shù)振興會(huì)等多項(xiàng)基金項(xiàng)目。
近年來(lái)，以分析傳感為導(dǎo)向，利用電化學(xué)和光譜等技術(shù)對(duì)氮化碳聚合物、摻雜碳等富碳功能材料的化學(xué)制備、電子結(jié)構(gòu)調(diào)控、表面性質(zhì)改性、分子界面組裝等進(jìn)行研究，探索了它們?cè)诠怆娹D(zhuǎn)換、光/電化學(xué)催化和基于這些催化效應(yīng)的疾病相關(guān)小分子傳感應(yīng)用。 已在J. Am. Chem. Soc.等期刊發(fā)表SCI論文100余篇，其中影響因子>5的論文50余篇，ESI高被引論文9篇，總SCI引用5000余次，H-index 39）。曾/現(xiàn)任《中國(guó)化學(xué)快報(bào)》（SCI收錄）青年副主任編委、江蘇省化學(xué)會(huì)青年副主任委員和國(guó)際電化學(xué)能源與科學(xué)研究院青年委員。
