葛茂发，研究员、博士生导师、实验室主任

吉林大学本科、硕博连读

国家杰出青年科学基金获得者（2009年）

Editor of Journal of Molecular Structure,

Editorial Board Member of Scientific Reports,  Aerosol Science and Engineering

《化学通报》副主编；《光谱学与光谱分析》《分析仪器》和《环境化学》编委

研究领域与兴趣：大气化学、环境化学、环境催化、纳米材料和污染控制技术
近期主要研究方向：
1、VOCs大气化学：VOCs的降解转化、氧化机理、VOCs污染控制技术
2、二次气溶胶：灰霾成因、二次粒子爆发增长化学机制、二次污染形成机理和控制技术
3、纳米材料和环境污染控制：新材料和催化剂、污染物控制技术
4、气溶胶化学&物理：气粒转化和气粒分配、气溶胶吸湿增长和大气老化、气溶胶光学、气溶胶化学成分与理化性质
5、大气化学动力学：自由基化学：大气活性自由基的生消和参与的大气化学演化过程；水相大气化学；气溶胶表界面物理化学


二次有机气溶胶光学性质研究的新进展

利用我们研制的光腔衰荡光谱仪（Chinese Sci. Bull., 2012, 57, 2567），结合烟雾箱模拟实验系统，开展了系列重要芳香烃生成的二次有机气溶胶（SOA）的光学性质研究，研究结果近期发表在国际期刊Scientific Reports上（Sci. Rep.2014, 4, 4922）。

我们选取北京地区大气中SOA生成贡献较高的人为污染物——苯、甲苯、乙苯、间二甲苯（BTEX），分别研究了在低NOx和高NOx条件下所生成的二次粒子的生成特点(图1)。研究发现，高浓度NOx条件下的氧化过程对大气氧化性增强贡献更大，并且能产生粒径更大的二次颗粒物。通过研究所得二次颗粒物的形貌和相态，发现颗粒近似液态，在空气中悬浮时可以球形存在。

图1 不同NOx条件下的反应切面图

分别测量了不同NOx浓度条件下BTEX二次粒子的光学性质(图2)。在三种条件下，间二甲苯都表现出最大的消光系数，分析指出这是因为其具有最大的反应活性，所生成的二次粒子的粒径最大。发现当NOx浓度升高时，苯、甲苯、乙苯和间二甲苯二次粒子的复折射率是变化的，认为由于不同反应路径所造成的成分差异导致了光学性质的改变。研究揭示，使用单一的二次有机气溶胶复折射率估算全球辐射平衡是不恰当的，根据区域NOx浓度的变化需要进行调整。

图2 不同NOx条件下二次粒子的光学性质曲线

将实验所测得的二次有机气溶胶复折射率与目前大气模型所假定的值进行了对比，发现无论是对主要的天然源还是人为源SOA，当前七种主要的大气模

图3 SOA复折射率的实验值与模式假定值的比较

式（图3中的三条直线）均在一定程度上过高估计了二次有机气溶胶的复折射率。我们的研究首次给出了这些重要人为源SOA的复折射率的实测值，为研究SOA对大气能见度和全球辐射平衡的影响提供了重要参数。


1 Hua Sun; Xiaolin Yu; Xiuyun Ma; Xueqin Yang; Mengya Lin; Maofa Ge,

MnOx-CeO2 catalyst derived from metal-organic frameworks for toluene oxidation

Catalysis Today, accepted

2 Shi Bo, Wang Weigang, Zhou Li, Sun Zheng, Fan Cici, Chen Yan, Zhang Wenyu, Yangyang Qiao, Yanliu Qiao, Maofa Ge

Atmospheric Oxidation of C10-14 n-Alkanes initiated by Cl atoms: kinetics and mechanism

Atmos Environ, 2020, 222, 117166, https://doi.org/10.1016/j.atmosenv.2019.117166

3 Xueqin Yang, Xiuyun Ma, Xiaolin Yu,, Maofa Ge,

Exploration of strong metal-support interaction in zirconia supported catalysts for toluene oxidation，

Appl. Catal. B-Environ., 2020, 263, 118355

4 Feifei Wang, Xiaolin Yu, Maofa Ge, Sujun Wu

One-step Synthesis of TiO2/γ-Fe2O3/GO nanocomposites for visible light-driven Degradation of Ciprofloxacin

Chemical Engineering Journal, 2020, 345, 123381

5 Jinxiu Zhan, Feng Feng, Ming Xu, Li Yao, Maofa Ge

Progress in Chemo–Mechanical Interactions between Nanoparticles and Cells

Acta Physico-Chimica Sinica, 2020, 36(1), 1905076(1-11)

6 张文倩, 葛茂发, 佟胜睿, 贾晨辉, 李伟然, 张欣然

土壤释放大气活性含氮物种的研究进展

矿物岩石地球化学通报, in press

7 Yidan Wang, Li Zhou, Weigang Wang, Maofa Ge,

Heterogeneous uptake of formic acid and acetic acid on mineral dust and coal fly ash

ACS Earth and Space Chemistry, 2020, 4, 202-210

 8 Cici Fan, Weigang Wang, Bo Shi, Yan Chen, Ke Wang, Wenyu Zhang, Zheng Sun , Maofa Ge

A combined experimental and theoretical study on the gas-phase reaction of OH radicals with ethyl propyl ether

J Phys Chem A, 2020,124(4), 721-730

9 Song Guo, Min Hu, Jianfei Peng, Zhijun Wu, Misti L. Zamora, Dongjie Shang, Zhuofei Du, Jing Zheng, Xin Fang, Rongzhi Tang, Yusheng Wu, Limin Zeng, Shijin Shuai, Wenbin Zhang, Yuan Wang, Yuemeng Ji, Yixin Li, Annie L. Zhang, Weigang Wang, Fang Zhang, Jiayun Zhao, Xiaoli Gong, Chunyu Wang, Mario J. Molina, and Renyi Zhang

Remarkable nucleation and growth of ultrafine particles from vehicular exhaust

PNAS, 2020, 117 (7), 3427-3432

10 Fengxia Bao, Hongyu Jiang, Yue Zhang, Meng Li, Chunxiang Ye, Weigang Wang, Maofa Ge, Chuncheng Chen, Jincai Zhao

The Key Role of Sulfate in the Photochemical Renoxificationon Real PM2.5

Environmental Science & Technology, 2020, 54(6), 3121-3128

11 An Ning, Haijie Zhang, Xiuhui Zhang, Zesheng Li, Yunhong Zhang, Yisheng Xu, and Maofa Ge

A molecular-scale study on the role of methanesulfinicacid in marine new particle formation

Atmos Environ, 2020,227, 117378; DOI: 10.1016/j.atmosenv.2020.117378

12 Zhen Wang, Shengrui Tong, Meifang Chen, Bo Jing, Weiran Li, Yucong Guo, Maofa Ge, Sufan Wang

Study on Ozonolysis of Asymmetric Alkenes with Matrix Isolation and FT-IR Spectroscopy

Chemosphere, 2020, 252, 126413(1-16), https://doi.org/10.1016/j.chemosphere.2020.126413

13 Ning Yang; Narcisse Tsona; Shumin Cheng; Yifeng Wang; Lingyan Wu; Maofa Ge;Lin Du

Effects of NO2 and SO2 on the heterogeneous reaction of acetic acid on α-Al2O3 in the presence and the absence of simulated irradiation

Environmental Science: Processes & Impacts, 2020, 22, 408–417

14 Bo You, Siyang Li,Narcisse T. Tsona,Jianlong Li, Li Xu, Qingcai Chen, Christian George, Maofa Ge,  Lin Du

Environmental Processing of Short-Chain Fatty Alcohols Induced by Photosensitized Chemistry of Brown Carbon

ACS Earth and Space Chemistry, accepted

15 Wenyu Zhang, Weigang Wang, Junling Li, Chao Peng, Kun Li, Li Zhou, Bo Shi, Yan Chen, Mingyuan Liu, Maofa Ge

Effects of SO2 on optical properties of secondary organic aerosol generated from photooxidation of toluene under different relative humidity

Atmos. Chem. Phys., 2020, 20, 4477-4492

16 Weiran Li, Meifang Chen, Yi Chen, Shengrui Tong, Maofa Ge, Yucong Guo, YunHong Zhang

Kinetic and mechanism studies of the ozonolysis of three unsaturated ketones

J Environ Sci, accepted

17 Yan Chen, Weigang Wang, Chaofan Lian, Wenyu Zhang, Chao Peng, Mingyuan Liu, Bo Shi, Xuefei Wang, Maofa Ge, Junling Li

Evaluation and impact factors on concentrations of indoor and outdoor gas-phase nitrous acid under different environmental conditions

J Environ Sci, accepted

18 Xueqin Yang, Xiuyun Ma, Dawei Han, Menglan Xiao, Lingjuan Ma, Hua Sun, Xiaolin Yu,  Maofa Ge

Efficient Removal of Toluene over Palladium Supported on Hierarchical Alumina Microspheres Catalyst

Catalysis Today, accepted

19 Xiuyun Ma; Xiaolin Yu;  Maofa Ge

Highly efficient catalytic oxidation of benzene over Ag assisted Co3O4 catalysts

Catalysis Today,accepted

20 Chenhui Jia, Shengrui Tong, Wenqian Zhang, Xinran Zhang, Weiran Li, Zhen Wang, Lili Wang, Zirui Liu, Bo Hu, Pusheng Zhao, Maofa Ge

 Pollution characteristics and potential sources of Nitrous Acid (HONO) in early autumn of Beijing

Science of the Total Environment, accepted