采用原位聚合法制备了氯氧化铋(BiOCl)与聚苯胺(PANI)复合的Ⅱ型异质结光催化剂BiOCl/PANI，并采用X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)、透射电子显微镜(TEM)、X射线光电子能谱(XPS)、紫外可见漫反射光谱(UV-Vis DRS)和N2吸附-脱附测试等多种技术手段对其进行了表征，考察了BiOCl/PANI在模拟可见光下对罗丹明B (RhB)的光催化降解性能。实验结果表明：BiOCl/PANI催化剂比PANI和BiOCl具有更高的光催化活性，在RhB质量浓度为50 mg·L^-1、PANI与BiOCl的物质的量之比为0.02∶1、50 mg·L^-1的催化剂条件下，所制备的BiOCl/PANI光催化150 min后，RhB降解率为98.8%，速率常数为0.031 min^-1；经过4次循环实验后，RhB降解率从98.8%降低至98.4%，表现出良好的稳定性和可重复利用性。光催化剂BiOCl/PANI实现了电子和空穴对的快速分离，降低了二者在催化剂内部的复合速率，提高了光催化性能。

仪器分析实验“分子荧光法测定罗丹明B的含量”存在实验过于简单、未考虑实际情况等问题。因此，本改进实验在三维荧光扫描模式下获取样本数据，不进行复杂预处理，而是运用化学计量学算法解析出目标分析物的纯信号，进而实现了染色辣椒中罗丹明6G和123的同时测定。本改进实验提高了学生全面考虑问题和创新解决问题的能力。

A simple two-step hydrothermal method synthesized four different CdS/Fe₃O₄ photocatalysts with varying ratios of mass of CdS to Fe₃O₄. The composition and morphology of the prepared samples were investigated using X-ray diffraction (XRD), Raman spectrum, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Solid UV reflectance spectra testing found that CdS/Fe₃O₄ nanocomposites had good light absorption throughout the spectral range, promoting their photocatalytic properties. Under visible light irradiation, CdS/Fe₃O₄ (2:5) with a mass ratio of 2:5 exhibited excellent photocatalytic performance, with a degradation rate of 98.8% for rhodamine B. Furthermore, after five cycles of photocatalytic degradation reaction, the rhodamine B degradation rate remained at 96.2%, indicating that the photocatalysts have good photocatalytic stability.

A flower-like BiOBr photocatalyst (CS/BiOBr) was prepared by using the carbon material derived from corn straw (CS) as the carrier. The prepared composites were characterized by X - ray diffraction (XRD), Fourier transform infrared (FIIR) spectra, scanning electron microscope (SEM), X - ray photoelectron spectra (XPS), and UV-Vis diffuse reflectance spectra (UV-Vis DRS). The SEM analyses indicate that the introduction of CS promotes the formation of a unique flower-like structure in BiOBr, which not only optimizes the efficiency of light capture but also increases the specific surface area of BiOBr. The bandgap of the composite was narrower compared with the pure BiOBr. The CS/BiOBr composites exhibited higher photocatalytic activity than pure CS and BiOBr under visible light irradiation, and a higher first-order reaction rate constant (k) of 0.043 7 min^-1 than BiOBr (0.014 6 min^-1), and exhibited excellent stability and reusability during the cyclic run. The enhanced photocatalytic activity is attributed to the efficient separation of photoinduced electrons and holes. Superoxide radicals and holes were the major active species.

在研究生基础课“化学反应动力学”教学中，秉持“以学生的学习和发展为中心”的教育理念，将课程内容与课程思政和学科前沿紧密融合，并交替采用问题驱动学习(PBL)和基于研究学习(RBL)的教学模式，带动研究生发挥学习主体的能动性，促进夯实基础知识，形成科学的理性思维及创新能力，提升综合分析-解决问题能力，为研究生后续取得科研创新成果打下坚实基础。

A dual-targeting melanin nanoparticle (MNP-TPP-HA) was constructed by grafting the carboxyl groups of hyaluronic acid (HA) and (4-carboxybutyl) triphenylphosphonium bromide (TPP) onto the surface of polyethylene glycol-amino (PEG-NH₂) modified MNP based on 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-hydroxy succinimide (NHS) reaction, endowing melanin with the ability of dual active targeting. The fluorescence imaging of in vitro three-dimensional (3D) tumor models and in vivo photoacoustic imaging (PAI) all reveal the excellent target penetration ability of MNP-TPP-HA.

A mononuclear Co^Ⅱ complex, [Co(H₂dapsc)(H₂O)Cl]Cl·2H₂O (1), with a pentagonal bipyramidal configuration was obtained by reflux reaction of CoCl₂·6H₂O and 2, 6-diacetylpyridine-bis(semicarbazone) (H₂dapsc) in a mixed solvent of water and ethanol. The neutral ligand H₂dapsc molecule provides five coordination atoms to form the equatorial plane of 1, while a water molecule and a Cl^- ion occupy their axial positions. At the same time, the solid structure contains a valence counteranion Cl^- ion and two lattice water molecules. The study of DC magnetic susceptibility indicates that complex 1 has strong magnetic anisotropy. The AC magnetic properties show the existence of slow magnetic relaxation behavior, which is dominated by both direct and Raman processes. The energy barrier for magnetization reversal was 55.55 K. Based on theoretical calculations, it can be concluded that the main reason for the slow magnetic relaxation behavior is the rhombic anisotropy of the pentagonal bipyramidal structure. The calculated D and E values were 45.68 and-0.32 cm^-1.

碳捕集技术是实现“双碳”目标的重要途径。高温工业源CO₂的捕集更宜使用钙基吸收剂。本文立足“双碳”背景，将碳捕集前沿技术融入仪器分析实验课程，开发了蛋壳源CaO的制备、表征及其碳捕集性能的设计性综合实验。选择高钙废弃物鸡蛋壳为原料，采用醋酸处理得到醋酸钙，再经高温煅烧制备了具有较好碳捕集性能的CaO;利用EDTA配位滴定、扫描电子显微镜、X射线衍射、红外光谱、拉曼光谱和热重分析等多种分析手段，测试了CaO的纯度、形貌、结构及其对CO₂的捕集性能。本实验采用项目式教学方式，引导学生自行设计实验方案并进行实践和总结，不仅锻炼了学生综合运用专业知识解决实际问题的能力，而且培养了学生的科研素养和团队合作精神。

随着社会对化学专业人才安全素养的要求日益提高，各高校逐渐意识到化学实验室安全教育的重要性。但当前的化学安全教育普遍缺乏系统性，为了扭转这样的局面，吉林大学化学学院依托化学国家级实验教学示范中心为平台，基于OBE (Outcome-Based Education)教育理念，以硬件建设和知识载体为双支撑、采取“理论与实践相结合、课内课外相结合、虚拟与现实相结合”的三结合实施路径，构建化学安全实践育人体系，使学生安全意识、安全知识和应急能力螺旋式上升，全面提升学生的化学安全素养。

铬族元素的Cr₂、Mo₂、W₂基团具有相对稳定性，科学家对此做了实验验证和理论计算，试图找出原因。本文梳理了相关研究脉络及最新进展，从“它们的成键方式如何？”以及“可以怎样被进一步稳定？”两个问题出发，对铬族元素中的双原子基团六重键作用进行了分析、归纳和讨论。作者认为，Cr₂、Mo₂、W₂基团的不稳定性来源于两原子间密集电子的斥力；因此，各种稳定该基团的方法本质上都是从减小电子密度、解决电子斥力入手。