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| 1 | 硫掺杂激光诱导石墨烯的制备及抗菌性能显示文摘高效抗菌性能的石墨烯基材料的制备具有挑战性。两步激光诱导法被成功用于硫掺杂激光诱导石墨烯(SLIG)的合成,该方法简单可控,并且制备的石墨烯纯度较高。研究了SLIG在胶体溶液中的抗菌性能。通过光密度(OD)法和平板菌落计数法测试了SLIG对大肠杆菌和金黄色葡萄球菌的活性抑制。结果表明,与激光诱导的石墨烯(LIG)相比,SLIG对革兰氏阴性大肠杆菌和革兰氏阳性金黄色葡萄球菌均表现出更高的抗菌能力。除此之外,分子动力学计算的结果与实验结果一致,表明掺杂的硫原子和石墨烯的高效协同作用增强了SLIG的抗菌性能。因此,两步激光诱导法制备的SLIG是一种有效的抗菌材料。 | 杨勇 周可心 胡南滔 张亚非 | 2021 | 微纳电子技术2021，58，4： | 2 |
| 2 | 表面氧修饰纳米金刚石制备及抗菌性能显示文摘表面修饰可有效提升纳米金刚石的抗菌性能。通过在空气中高温退火的方式实现了纳米金刚石的表面氧修饰,并对其进行了一系列表征以及抗菌测试。表征结果与采用光密度(OD)法进行抗菌测试结果表明,空气中400℃下退火进行的氧修饰可在纳米金刚石表面引入C=O官能团,并显著提高纳米金刚石的抗菌能力,对于金黄色葡萄球菌与大肠杆菌的抗菌率分别可达64.8%与83.4%。C=O官能团的形成将大量电子引入体系,并在氧原子作用下在表面富集,从而形成强负电性表面,该结论与Zeta电位结果一致。强负电性表面可抑制细菌的生长和繁殖,这使氧修饰纳米金刚石具有良好的抗菌性能。 | 苗泽萌 杨勇 黄小露 张耀中 张亚非 | 2023 | 微纳电子技术2023，60，3： | 1 |
| 3 | p型氧化铜纳米线的飞秒激光纳米连接显示文摘纳米线的空间定位与接头连接对制备和组装高性能的纳米功能单元至关重要,开发新材料体系的高性能互连结构一直是研究重点之一。使用单脉冲能量密度为22.3 mJ/cm^(2)的聚焦飞秒激光成功实现p型氧化铜(CuO)纳米线之间的互连,聚焦激光能量场会由CuO纳米线的几何效应在接头处产生局域场增强效应,在纳米线接头的界面处发生原子扩散,促使CuO互连结构在施加偏压为10 V的情况下所获得的电流响应强度较连接前提升3个数量级以上,达到与母材相同的水平,基于该结构的光电探测器在功率为25.3 mW卤素灯照射的条件下获得与母材性能一致的电流增幅比值。所得结果为制备基于纳米连接的小型化、高性能和多功能化的纳米线网络单元奠定基础。 | 肖宇 霍金鹏 孙天鸣 邢松龄 沈道智 林路禅 邹贵生 | 2021 | 中国激光2021，48，8： | 1 |
| 4 | Effective photodegradation of 4-nitrophenol with CuO nano particles prepared by ionic liquids/water system显示文摘The hydrophobic ionic liquids/water two-phase system was developed to prepare CuO nano particles.The catalytic activity of the synthesized CuO was investigated by photodegradation of 4-nitrophenol(4-NP)in the presence of H_(2)O_(2) under visible light irradiation.The optical properties of the synthesized CuO were characterized by ultraviolet–visible(UV–Vis)diffuse reflectance spectroscopy(DRS).Experimental results indicated that the band gap energy(Eg),conduction band edge potential(ECB)and valence band edge potential(EVB)of the synthesized CuO were 1.37 e V,0.625 e V and 1.995 e V,respectively.A degradation efficiency of 4-NP(4.8 mmol L^(-1))as high as 95.3% could be achieved under the conditions of p H 6.0,0.48 g L^(-1)of CuO dosage,1.4% of H_(2)O_(2) dosage and 90 min of degradation time.The synthesized CuO exhibited poor catalytic activity under alkaline conditions due to the disassociation of 4-NP,which elevated the repulsion between CuO and the 4-NP anions.The synthesized CuO nano particles exhibited higher catalytic activity compared with the catalysts reported in literature.Furthermore,the synthesized CuO nano particles could be reused at least six times without decreasing their catalytic activity.Compared with the traditional hydrothermal method,mild operating conditions and time saving are the advantages of the developed method for the preparation of CuO. | Yunchang Fan Di Wu Sheli Zhang Lei Zhang Wei Hu Chunyan Zhu Xueyun Gong | 2022 | Green Chemical Engineering2022，3，1： | 0 |
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