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Bi2WO6 quantum dot-intercalated ultrathin montmo- rillonite nanostructure and its enhanced photocatalytic performance

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Nano Research 2014年第10期7卷 1497-1506页

作者： songmei sun Wenzhong Wang Dong Jiang Ling Zhang Xiaoman Li Yali Zheng Qi An State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China Materials and Process Simulation Center California Institute of Technology Pasadena CA 91125 USA

The kinetic competition between electron-hole recombination and water oxidation is a key limitation for the development of efficient solar water splitting materials. In this study, we present a solution for solving this challenge by constructing a quantum dot-intercalated nanostructure. For the first time, we show the interlayer charge of the intercalated nanostructure can significantly inhibit the electron-hole recombination in photocatalysis. For Bi2WO6 quantum dots （QDs） intercalated in a montmorillonite （MMT） nanostructure as an example, the average lifetime of the photogenerated charge carriers was increased from 3.06 μs to 18.8 Ds by constructing the intercalated nanostructure. The increased lifetime markedly improved the photocatalytic performance of Bi2WO6 both in solar water oxidation and environmental purification. This work not oMy provides a method to produce QD-intercalated ultrathin nanostructures but also a general route to design efficient semiconductor-based photoconversion materials for solar fuel generation and environmental purification.

关键词： photocatalysis lifetime ammonia degradation water oxidation montmorillonite exfoliation

Photoreduction of C02 on BiOCI nanoplates with the assistance of photoinduced oxygen vacancies

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Nano Research 2015年第3期8卷 821-831页

作者： Ling Zhang WenzhongWang Dong Jiang Erping Gao songmei sun State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of Ceramics Chinese Academyof Sciences Shanghai 200050 China

CO2 photoreduction by semiconductors is of growing interest. Fabrication of oxygen-deficient surfaces is an important strategy for enhancing CO2 photoreduction activity. However, regeneration of the oxygen vacancies in photocatalysts is still a problem since an oxygen vacancy will be filled up by the O atom from CO2 after the dissociation process. Herein, we have fabricated highly efficient BiOC1 nanoplates with photoinduced oxygen vacancies. Oxygen vacancies were easily regenerated by light irradiation due to the high oxygen atom density and low Bi~） bond energy even when the oxygen vacancies had been filled up by the O atom in the photocatalytic reactions. These oxygen vacancies not only enhanced the trapping capability for CO2, but also enhanced the efficiency of separation of electron-hole pairs, which resulted in the photocatalytic CO2 reduction under simulated solar light. Furthermore, the generation and recovery of the defects in the BiOC1 could be realized during the photocatalytic reduction of CO2 in water. The existence of photoinduced defects in thin BiOC1 nanoplates undoubtedly leads to new possibilities for the design of solar-driven bismuth based photocatalysts.

关键词： BiOC1 nanoplates oxygen vacancy photocatalytic CO2 photoreduction defect

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城市高精度实景三维单体模型建设及应用

测绘通报 2021年第1期 108-111页

作者：孙松梅黄天进孙颖广州智迅诚地理信息科技有限公司广东广州510000 中山大学地理科学与规划学院广东广州510275

倾斜摄影测量技术可以实时、综合感知大尺度、高精度的复杂城市场景,在获取正射影像的同时获得真实的立面纹理信息,为城市实景三维模型建设提供保证。本文分析了城市三维单体模型测量基本技术,按照城市要素类型对单体化模型进行分类,研... 详细信息

倾斜摄影测量技术可以实时、综合感知大尺度、高精度的复杂城市场景,在获取正射影像的同时获得真实的立面纹理信息,为城市实景三维模型建设提供保证。本文分析了城市三维单体模型测量基本技术,按照城市要素类型对单体化模型进行分类,研究了二维与三维数据的融合方式,其精细单体化成果在广州市白云区665 km2城市实景三维模型建设中得到应用,在提高工作效率的同时降低了外业劳动强度。

关键词：倾斜摄影测量城市高精度实景三维模型单体化模型精细单体化模型组织与分类

无人机倾斜摄影支持下的1∶500高精度三维测图方案及应用

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测绘通报 2019年第7期 87-91页

作者：赵小阳孙松梅孙颖广州市城市规划勘测设计研究院广东广州510060 广州智迅诚地理信息科技有限公司广东广州510000 不详

研发了一种适合于大范围1∶500的无人机测图方案,围绕平面和高程点位中误差在5 cm以内这一核心目标,从无人机的平台稳定性、空中精准定位飞控、空三与三维建模及模型与影像结合的多视角测图等方面进行了设计。在广州马沥村的应用表明,... 详细信息

研发了一种适合于大范围1∶500的无人机测图方案,围绕平面和高程点位中误差在5 cm以内这一核心目标,从无人机的平台稳定性、空中精准定位飞控、空三与三维建模及模型与影像结合的多视角测图等方面进行了设计。在广州马沥村的应用表明,本文研究的无人机倾斜摄影方案可以满足1∶500高精度的三维测图,并具有较高的效率。

关键词：无人机倾斜摄影大比例尺地形测图实景三维多视角组合测图

2020 Roadmap on gas-involved photo-and electro-catalysis

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Chinese Chemical Letters 2019年第12期30卷 2089-2109页

作者： Yulu Yang Yang Tang Haomin Jiang Yongmei Chen Pingyu Wan Maohong Fan Rongrong Zhang Sana Ullah Lun Pan Ji-Jun Zou Mengmeng Lao Wenping sun Chao Yang Gengfeng Zheng Qiling Peng Ting Wang Yonglan Luo Xuping sun Alexander S.Konev Oleg V.Levin Panagiotis Lianos Zhuofeng Hu Zhurui Shen Qinglan Zhao Ying Wang Nadia Todorova Christos Trapalis Matthew V.Sheridan Haipeng Wang Ling Zhang songmei sun Wenzhong Wang Jianmin Ma School of Physics and Electronics Hunan UniversityChangsha 410082China College of Chemistry Beijing University of Chemical TechnologyBeijing 100029China School of Civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332United States College of Engineering and Applied Sciences and School of Energy ResourcesUniversity of WyomingLaramieWY 82071United States Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovative Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNSW 2522Australia Laboratory of Advanced Materials Department of ChemistryFudan UniversityShanghai 200438China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China Institute of Chemistry St.Petersburg State University7/9 Universitetskaya emb.St.Petersburg 199034Russian Federation Department of Chemical Engineering University of PatrasPatras 26500Greece School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologySun Yat-sen UniversityGuangzhou 510275China School of Materials Science and Engineering Nankai UniversityTianjin 300350China Department of Chemistry Chinese University of Hong KongHong KongChina Institute of Nanoscience and Nanotechnology NCSR"Demokritos"Athens 15341Greece State Key Laboratory of School of Radiation Medicine and Protection and School for Radiological and interdisciplinary Sciences(RAD-X) Soochow UniversitySuzhou 215123China State Key Laboratory of High Performance Ceramics and Superf

Green reactions not only provide us chemical products without any pollution,but also offer us the viable technology to realize difficult tasks in normal ***-,photoelectro-,and electrocatalytic reactions are indeed powerful tools to help us to embrace bright ***,some gas-involved reactions are extremely useful to change our life environments from energy systems to liquid fuels and cost-effective products,such as H2 evolution(H2 production),02 evolution/reduction,CO2 reduction,N2 reduction(or N2 fixation) *** can provide fuel cells clean H2 for electric vehicles from H2 evolution reaction(HER),at the same time,we also need highly efficient 02 reduction reaction(ORR) in fuel cells for improving the reaction ***,we can get the clean oxidant O2 from water through O2 evolution reaction(OER),and carry out some reactions without posing any pollution to reaction ***,we can translate the greenhouse gas CO2 into useful liquid fuels through CO2 reduction reaction(CRR).Last but not the least,we can get ammonia from N2 reduction reaction(NRR),which can decrease energy input compared to the traditional Hubble *** reactions,such as HER,ORR,OER,CRR and NRR could be realized through solar-,photoelectro-and electro-assisted *** them,the catalysts used play crucial roles in determining the efficiency and kinds of products,so we should consider the efficiency of ***,the cost,synthetic methods of catalysts should also be ***,significant progress has been achieved,however,many challenges still exist,reaction systems,catalysts underlying mechanisms,and so *** extremely active fields,we should pay attention to *** the background,it has motivated us to contribute with a roadmap on ’GasInvolved Photo-and Electro-Catalysis’.

关键词： H2 evolution reaction O2 reduction reaction O2 evolution reaction CO2 reduction reaction N2 reduction reaction Electrocatalysis Photocatalysis Photoelectrocatalysis

羟肟酸功能化PMMA/AM/HOA的合成及对Hg^(2+)和Cd^(2+)的吸附性能

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环境工程学报 2016年第11期10卷 6409-6415页

作者：孙林刘春萍马松梅孙豪展陈秋鲁东大学化学与材料科学学院烟台264025

用悬浮聚合法合成了甲基丙烯酸甲酯(MMA)与丙烯酰胺(AM)的共聚物PMMA/AM,再经羟胺改性制备了含羟肟酸功能基的改性PMMA/AM/HOA树脂。通过红外光谱(FTIR)和热重分析(TG)对PMMA/AM/HOA树脂的结构和稳定性进行了表征。以PMMA/AM/HOA为吸附... 详细信息

用悬浮聚合法合成了甲基丙烯酸甲酯(MMA)与丙烯酰胺(AM)的共聚物PMMA/AM,再经羟胺改性制备了含羟肟酸功能基的改性PMMA/AM/HOA树脂。通过红外光谱(FTIR)和热重分析(TG)对PMMA/AM/HOA树脂的结构和稳定性进行了表征。以PMMA/AM/HOA为吸附剂,考察了温度、吸附时间、pH值和金属离子浓度等条件对Hg^(2+)、Cd^(2+)两种金属离子吸附性能的影响。结果表明,改性树脂对Hg^(2+)、Cd^(2+)具有良好的吸附能力,其实验吸附量分别为0.822和0.384 mmol·g^(-1)。改性树脂对Hg^(2+)和Cd^(2+)的吸附过程符合拟二级动力学方程,25℃时其二级动力学吸附速率常数分别为5.301×10^(-2)和3.582×10^(-2)g·(mmol·min)^(-1);改性树脂对Hg^(2+)和Cd^(2+)的吸附量随温度的升高有所增大,吸附过程符合Langmuir和Freundlich吸附等温式。

关键词：羟肟酸 PMMA/AM/HOA 吸附 Hg2+ Cd2+

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重力坝坝踵处应力强度因子的计算

水利学报 1984年第9期 11-18页

作者：黄松梅简政孙静陕西机械学院

本文用有限单元法和边界配置法相结合的方法,计算了重力坝坝踵处的应力强度因子;还探讨了边界配置法求应力强度因子时的收敛性问题。计算实践表明:选择适当的计算边界,用改变计算区域几何比例的方法可以求得稳定的应力强度因子。

关键词：边界配置法坝踵应力强度因子力学因子重力坝

高职《遥感技术及应用》创新创业教育专门课程建设研究

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创新创业理论研究与实践 2020年第23期3卷 27-28,34页

作者：黄铁兰高照忠孙松梅广东工贸职业技术学院广东广州510510 广州智迅诚地理信息科技有限公司广东广州510663

创新创业教育与专业教育有机结合,是当前高职院校创新创业教育的研究热点。该文以高职《遥感技术及应用》创新创业教育专门课程建设为研究对象,首先分析了在课程中开展创新创业教育的必要性,接着从教学团队组建、教学内容重构、教学资... 详细信息

创新创业教育与专业教育有机结合,是当前高职院校创新创业教育的研究热点。该文以高职《遥感技术及应用》创新创业教育专门课程建设为研究对象,首先分析了在课程中开展创新创业教育的必要性,接着从教学团队组建、教学内容重构、教学资源建设、教学方法改革、课程评价方式改革5个方面提出了具体的建设思路和举措,最后分析了建设的成效。研究发现,高职《遥感技术及应用》创新创业专门课程建设取得了较好的效果,未来要在校企合作和实习实践方面进一步深化。

关键词：遥感技术及应用创新创业项目教学法混合式教学模式

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高职《遥感技术及应用》课程思政教学探索

创新创业理论研究与实践 2020年第24期3卷 133-135页

作者：黄铁兰高照忠孙松梅广东工贸职业技术学院广东广州510510 广州智迅诚地理信息科技有限公司广东广州510663

专业课程的"课程思政",实质是将思想政治教育融入专业课程教学的各个环节,以实现立德树人的根本目标。该文以高职《遥感技术及应用》课程为例,首先探讨了在该门课程中融入思政教育的必要性,之后从课程的理论教学和实践教学两个方面入手... 详细信息

专业课程的"课程思政",实质是将思想政治教育融入专业课程教学的各个环节,以实现立德树人的根本目标。该文以高职《遥感技术及应用》课程为例,首先探讨了在该门课程中融入思政教育的必要性,之后从课程的理论教学和实践教学两个方面入手,挖掘该门课程中的主要思政元素,最后从教学目标、教学内容和教学实施三方面阐述了实施路径,并以两个知识点为例进行了教学实践。通过研究取得了较好的效果,为下一步在测绘地理信息类专业进行课程思政的推广实施提供科学依据。

关键词：课程思政遥感技术及应用教学改革混合式教学法