大气黑碳颗粒物形貌演变  

Morphological Evolution of Atmospheric Black Carbon Particles

作　　者：刘可欣 杜卓菲 龚鑫 毛洪钧[1] 彭剑飞 Kexin Liu;Zhuofei Du;Xin Gong;Hongjun Mao;Jianfei Peng(Tianjin Key Laboratory of Urban Transport Emission Research,College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China;College of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384,China)

机构地区：[1]天津市城市交通污染防治研究重点实验室,南开大学环境科学与工程学院,天津300071 [2]天津理工大学环境科学与安全工程学院,天津300384

出　　处：《化学进展》2025年第3期397-410,共14页Progress in Chemistry

基　　金：国家自然科学基金项目(No.42107125,72104132);教育部人文社会科学研究青年项目(No.21YJCZH136);山西省基础研究计划项目(No.20210302124201)资助。

摘　　要：黑碳(BC)颗粒物具有显著的吸光能力,是导致霾污染和全球变暖的重要物种。然而BC颗粒物吸光能力的定量研究长期无法达成共识,影响了其对环境和气候效应的准确评估。BC颗粒物微物理形貌的改变是影响其吸光的重要因素,但目前缺乏对其规律和机制较为全面的归纳总结。本文系统综述了BC颗粒物形貌定量表征参数、测量和计算方法及其在凝结、相分离、碰并和蒸发过程中的微观形貌的演变规律,并梳理其演变机制和主要影响因素。不同老化过程对BC颗粒物微物理形貌的改变是解释其吸光性争议的关键,但目前这些过程中BC核的形貌变化规律及复杂结构的BC颗粒物吸光定量评估仍存在很多不确定性。因此未来的研究方向应重点关注实际大气中BC颗粒物形貌演变过程,进一步探究形貌演变机制对BC核塌缩程度的影响、完善BC颗粒物光吸收和辐射模型。Black carbon(BC)particulate matter has significant light-absorbing capacity and is an important species contributing to haze pollution and global warming.However,quantitative studies of the light absorption capacity of black carbon(BC)have long been unable to reach a consensus affecting the accurate assessment of its environmental and climate effect.The morphological evolution of BC particles is the important factor affecting the light-absorbing capacity.However,the current literature review lacks a comprehensive summary of the characteristics and mechanisms involved in the evolution of BC micromorphology.This review summarizes the relevant studies on BC morphology evolution in recent years including the quantitative parameters of BC morphology,measurement and calculation methods of morphology parameters,the micromorphology evolution characteristics of BC during condensation process,phase separation process,coagulation process and evaporation process,and its evolution mechanism and main influencing factors.The evolution of the microphysical morphology of BC particles during different aging processes is the key to explaining the controversy over the light absorption of BC particles.However,there are still many uncertainties in the morphology evolution of BC core and the quantitative assessment of light absorption of complexstructured BC particles in these processes.Therefore,tracking the actual atmospheric BC morphology evolution,further investigating the effect of morphology evolution mechanism on the BC core collapse,and improving the models of BC light absorption and radiation will be the key research direction in the future.

关 键 词：黑碳颗粒物 形貌演变 老化过程 吸光能力 影响因素 

分 类 号：X131.1[环境科学与工程—环境科学]