以一位考古学教授在四川自贡恐龙遗址考察引发的遐想为载体，介绍了U-Pb定年法的基本原理，以及样品采集、样品处理后的分析方法和检测结果处理，全面地科普了U-Pb定年法的相关知识。同时，本文介绍了自贡地区的恐龙文化及产业，向读者展现恐龙之都的魔力。

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。

微塑料污染已成为全球环境问题，将其转化为碳量子点为污染治理提供了创新思路。本实验采用水热法和灼烧法制备碳量子点，并对其光学性能进行系统分析。同时，研究了Fe³⁺对碳量子点荧光效果的影响。实验内容涵盖了制备、性能分析及Fe³⁺检测等，操作简便，融合了有机化学与环境化学，增强了实验的趣味性与教育价值。

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.

为了推动应用化学一流专业建设，统筹推进教育科技人才“三位一体”协同发展，推动科研成果和技术创新反哺人才培养，创新高校实验教学内容，深化实验教学改革，着力造就拔尖创新人才。依托省级化学与分析测试实验教学示范中心，对化学综合创新实验课程体系进行了探索和实践，构建了一体化、多层次的化学综合实验教学体系，组建了一师多能的创新实验教师团队，创建多模块立体化实验课程资源，建立了线上线下互融教学模式，形成了以学科竞赛为驱动的一流创新人才培养范式。

在能源化学工程专业的无机化学课程教学中，秉持“学生中心”和成果导向教育(OBE)理念，构建了“五环一心”教学新形态。通过教师主导，充分利用“互联网+”，从课程资源的精选与建设、教学方式方法的改革，到专业引领、深度融入课程思政，再到全程多元化课程评价，引导和激励学生在线上、线下和课前、课中、课后努力学习，同时提升综合能力和素养，实现了“知识传授、能力培养和价值引领浑然一体”的人才培养目标。