Household microwave assisted rapid synthesis of porous ZnO capsules with visible yellow light activa

来源 :2017第十五届全国光化学学术讨论会 | 被引量 : 0次 | 上传用户:hetongzhixia
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  In this study,two-step method including hydrothermal and microwave process was used to synthesize a novel porous ZnO nanoparticles.Surprisingly,we found this ZnO could respond visible light after microwave treatment.To further verity this phenomenon,rhodamine B was chosen as the degraded model,and the photocatalytic degradation properties of ZnO with different microwave treatment time were studied.The results showed that under visible light,the as prepared porous ZnO has good degradation effect and impressive photocatalytic activity.
其他文献
Recently,the chemical assembly of single-molecule magnets(SMMs)and single-chain magnets(SCMs)as magnetic building blocks(MBBs)in metal-organic frameworks(MOFs)captured researchers attention since this
The switchable and bistable spin-crossover(SCO)magnetic materials continue to attract a great deal of interest.Generally,the transition is triggered by given external stimuli(such as light irradiation
芳基醚是许多药物以及天然产物的重要结构单元,传统合成方法需要先将芳烃卤代后再与醇反应,步骤繁琐[1]。本研究中我们利用光催化和钴催化相结合的方法[2],在室温下实现了由芳烃和醇一步合成芳基醚,该反应无需外加氧化剂,唯一副产物为氢气。利用该方法同样可由苯丙醇及其衍生物环化合成一系列色满衍生物。我们进一步将该合成策略应用于药物的合成,以苯为起始原料利用该双催化体系经三步反应合成得到局部麻醉药丁托西卡因
近年来,可见光催化由于其洁净、节能、节约的特点受到了化学家的广泛关注[1],越来越多的有机反应可以通过可见光催化的方式实现。在这类反应中,可见光催化剂起着至关重要的作用[2],因此,可见光催化剂的丰富和发展具有非常重要的意义。铂配合物是一类具有丰富光物理性质的化合物,该工作中,我们合成了一系列新的铂配合物,研究其光物理性质,并最终将其应用于可见光催化二氟烷基化反应[3],表现出很好的效率和选择性。
环金属Ir(Ⅲ)配合物具有强的可见光吸收,及长的三重激发态寿命,可作为光敏剂在光催化领域中有广泛的应用,[1] 然而关于过渡金属配合物(以具有强可见光吸收的发色团作为配体)的系间窜越速率的研究鲜有报道。
The detailed structure-activity relationship of surface hydroxyl groups(Ti-OH)and adsorbed water(H2O)on the TiO2 surface should be the key to clarify the photogenerated hole(h+)transfer mechanism for
光致水解制氢过程中,明晰催化剂中心原子在光催化过程中生成中间态的三维几何结构和电子结构,对理解光催化机制、提升光解水制氢效率至关重要。因此需要采用建立实时、原位、元素选择的表征手段来探究光催化中间态的几何和电子结构。
Photoconductivity of semiconducting materials mainly depends on the free carrier concentrations which rest with the competition between the photogenerated excess carriers and the charge recombination,
Carbon-rich organic compounds with extended π-conjugated structures have recently fascinated chemists due to their unique electronic,optical,and structural properties as well as the potential applicat
The first synthesis of facially polarized all-cis 1,2,3,4,5,6-hexafluorocyclohexane(1)is a tour de force of organic chemistry and opens up new possibilities for molecular design[1,2].