借用拟人化、第一人称的手法，以Blog的形式对肽类激素催产素从基本概况、研究历史、功能作用等方面进行简要介绍，并与相关物质进行类比分析，用生动有趣的语言让人们对催产素形成初步的认识。

维生素D，被誉为“阳光维生素”，在维护人体健康中具有不可或缺的作用。本文从化学角度出发，生动形象地介绍了维生素D的形成过程、发现过程、其在生物学上的功能以及在日常生活中的应用。通过深入了解维生素D，我们能更好地认识并学会如何合理利用这一重要营养素来维护自身健康。

动力学同位素效应是最近两年在国内外化学竞赛中出现的新兴考点。本文从势能曲线和零点振动能出发，从经典的过渡态理论角度阐释了一级动力学同位素效应和二级动力学同位素效应的起源，简述了动力学同位素效应在反应机理研究中的作用。通过解析国内外化学竞赛相关试题，分析了动力学同位素效应的考察角度，揭示了国内竞赛与国际竞赛的出题导向有一定的延续性。最后对动力学同位素效应的竞赛教学提出了一些思考和建议，对竞赛教学工作者具有参考和借鉴价值。

通过一种绿色、自交联策略，基于海藻酸钠(SA)和羧甲基纤维素钠(CMC)中羧基对Zn²⁺的离子缔合作用，利用旋涂法在锌电极表面原位构建了具有孔结构的柔性SA+CMC凝胶涂层(Zn@SA+CMC)。涂层中富含羟基，羟基的强吸附效应能够使涂层与锌电极紧密结合，减少界面处的副反应。柔性涂层不仅能适应锌电镀过程中的体积变化，还表现出较好的亲锌性，更低的成核过电压，更高的离子电导率，有利于Zn²⁺均匀沉积，有效抑制了锌枝晶的生成。因此，Zn@SA+CMC对称电池能稳定运行890 h(3 mA·cm^-2)；Zn@SA+CMC||MnO₂全电池表现出优越的倍率和循环性能。

A new metal-organic framework (MOF) {[Cd(L)_0.5(4, 4'-bpy)_0.5]·H₂O}_n (1), where H₄L=(1, 1': 4', 1″-terphenyl)-2, 2″, 4, 4″-tetracarboxylic acid, 4, 4'-bpy=4, 4'-bipyridine, was synthesized by hydro-solvothermal method. The structure of complex 1 was characterized by single-crystal X-ray diffraction, elemental analysis, powder X-ray diffraction, thermogravimetric analysis, and infrared spectrum analysis. The analysis of single crystal structure shows that 1 is a 3D structure, belonging to the monoclinic crystal system, C2/c space group. Cd(Ⅱ) connects L^4- and 4, 4'-bpy to form a 2D plane structure, and the layers are connected by L^4- to form a 3D network structure. The MOF shows good stability and can be used for the detection of tetracycline (TET) and p-nitrophenol (4-NP) by fluorescence quenching. The detection limits of TET and 4-NP were 0.15 and 0.062 μmol·L^-1, respectively. In addition, the fluorescence quenching mechanism of 1 was also studied. 1 can be successfully applied to the determination of TET and 4-NP content in Yanhe water samples.

A metal - free photocatalyst was developed and synthesized through a single - step thermal treatment process involving banana peel (BP) and urea. The close interfacial connection between biomass-derived carbon (BC) and porous graphite carbon nitride (pg - C₃N₄) resulted in an increased specific surface area, expanded photo-response range, effective migration of photo-induced electrons, and enhanced stability. The reaction rate constant of pg-C₃N₄/BC for degradation oxytetracycline (OTC) in artificial seawater was 9.4 times higher than that of pristine pg-C₃N₄ after 70 min of visible-light illumination, and pg-C₃N₄/BC also performed better photocatalytic degradation on OTC in the continuous flow reaction process owing to facilitated photogenerated charge separation and transfer. Additionally, a potential photocatalytic mechanism was proposed to explain the enhanced performance of pg-C₃N₄/BC composites.

通过水浴-逆共沉淀法制备磁性催化剂MnFe₂O₄@AC (MFA)，并对其结构和磁性进行了系统表征。结果显示，MnFe₂O₄纳米颗粒包覆在活性炭(AC)表面，构成了多级孔结构。MFA较AC基体材料的比表面积有所下降，但仍高达176 m²·g^-1，平均孔径为8.49 nm。MFA的比磁化强度高达38.92 emu·g^-1，可利用外磁场实现高效固液分离。以MFA为催化剂，在紫外光辅助下活化过硫酸氢钾(PMS)降解盐酸四环素(TC)。研究表明，在紫外光辐照下MFA/PMS体系对TC降解率能够达到97.70%，是无紫外光照射体系的1.2倍；共存阴离子、药剂制度、TC初始质量浓度等因素对系统的催化性能具有显著影响。循环5次之后，降解率仍可达到82.76%。自由基猝灭实验表明，超氧自由基(·O₂^-)和单线态氧(¹O₂)是紫外光辅助MFA/PMS高级氧化体系中的主要活性氧。机理分析表明，MFA的高吸附性为催化降解提供了良好的基础，紫外光辐照和MFA/PMS高级氧化体系的协同效应可显著提升活性基团的生成效率，从而促进了有机分子的降解。

In this work, p-phenylenediamine and L-cysteine were used as raw materials, and water-soluble N, S co-doped carbon dots (N, S-CDs) with excellent performance were prepared through a one-step solvothermal method. The morphology and structure of N, S-CDs were characterized by transmission electron microscope, X-ray diffraction, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy, and the basic photophysical properties were investigated via UV-Vis absorption spectra and fluorescence spectra. Meanwhile, the N, S-CDs have excellent luminescence stability with pH, ionic strength, radiation time, and storage time. Experimental results illustrated the present sensor platform exhibited high sensitivity and selectivity in response to baicalein with a detection limit of 85 nmol·L^-1. The quenching mechanism is proved to be the inner filter effect. In addition, this sensor can also detect baicalein in biofluids (serum and urine) with good accuracy and reproducibility.

近年来随着工业化的深入发展，全球环境污染日益加重，尤其是水体中的抗生素污染, 亟需重点关注并采取科学、有效方法予以解决。光催化技术是一种非常有前景的水体治理技术，为解决水体抗生素污染提供了重要途径。该技术实现大规模应用的关键在于开发出高效且稳定的光催化材料。现有的光催化材料的性能主要受制于其弱的太阳能利用率，快速复合的光生载流子以及氧化还原能力弱等问题。研究发现科学设计和构筑碳量子调控S型异质结材料可以有效克服以上问题。相比于单一的S型异质结，该新型异质结体系整合了两者的优势，具有巨大的应用前景。因此, 开发新型碳量子调控S型异质结材料, 有望实现对抗生素污染水体的快速治理, 进一步促进光催化水体修复技术的发展。在本文研究中，我们成功开发了一种新型的碳量子点调控的S型carbon quantum dots/CdS/Ta₃N₅异质结纤维用于高效去除左氧氟沙星。其对左氧氟沙星去除速率常数为0.0404 min^-1，比Ta₃N₅，CdS/Ta₃N₅和CdS分别提高了39.4、2.1和7.2倍。这主要得益于独特1D/0D/0D核壳结构，该异质结构有效促进了碳量子点和S型异质结的协同增效机制。本研究为开发高效Ta₃N₅基催化体系用于环境治理开辟了一种新的思路。

中医药文化被喻为中华优秀传统文化的璀璨明珠，是中华传统文化的重要组成和典型代表。而作为抗疟明星的中医药青蒿素来源于天然产物，因此，天然产物中的青蒿素的提取和结构鉴定显得十分必要。课程团队结合课程特点，将青蒿素的提取和结构鉴定引入实验教学并进行课程思政教学案例设计。以此项目为载体，培养学生自主查阅文献、设计实验方案和运用仪器分析技术表征分子结构的科学素养。该教学案例的建立实施有助于教师充分挖掘课程中的思政元素，激发学生的学习兴趣，培养其自主创新意识，增强爱国情怀和民族文化自信，取得了良好的课程思政教学示范效果。