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面向地学类专业的大学化学实验教学创新研究

当代化工研究 2024年第1期 140-142页

作者：吴艳李勇廖桂英中国地质大学(武汉)材料与化学学院湖北430078

大学化学实验教学,是地学类专业的大学生的必修课。中国地质大学(武汉)在大学化学实验教学中,从大学生的学科背景和知识储备出发,结合地学、化学和材料科学的研究最新进展,创新实验教学方式和教学内容。实验教学中,以天然矿物凹凸棒复... 详细信息

大学化学实验教学,是地学类专业的大学生的必修课。中国地质大学(武汉)在大学化学实验教学中,从大学生的学科背景和知识储备出发,结合地学、化学和材料科学的研究最新进展,创新实验教学方式和教学内容。实验教学中,以天然矿物凹凸棒复合纳米氧化锌材料光催化降解有机污染物实验为切入点,一方面夯实大学生掌握好实验教学课程中的基础知识和原理,做好“规定动作”;另一方面以创新性实验为个案为“自选动作”,引导学生在具体的实验教学环节发现问题、分析问题并解决问题,提升大学生科学研究的兴趣,打开科学研究之门。

关键词：大学化学实验教学矿物纳米复合材料光催化创新能力研究兴趣

Facile synthesis of graphene-based hyper-crosslinked porous carbon composite with superior adsorption capability for chlorophenols

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Journal of Environmental Sciences 2020年第4期32卷 395-407页

作者： Yanyang Liu Bin Men Aibin Hu Qingliang You guiying liao Dongsheng Wang Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Material Science and ChemistryChina University of GeosciencesWuhan 430074China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Key Laboratory of Optoelectronic Chemical Materials and Devices Ministry of EducationSchool of Chemical and Environmental EngineeringJianghan UniversityWuhan 430056China

In this work,we proposed a green and cost-effective method to prepare a graphene-based hyper-cross-linked porous carbon composite(GN/HCPC)by one-pot carbonization of hyper-cross-linked polymer(HCP)and *** composite combined the advantages of graphene(GN)and hyper-cross-linked porous carbon(HCPC),leading to high specific surface area(396.93 m^2/g)and large total pore volume(0.413 cm^3/g).The resulting GN/HCPC composite was applied as an adsorbent to remove 2,4-dichlorophenol(2,4-DCP)from aqueous *** influence of different solution conditions including pH,ionic strength,contact time,system temperature and concentration of humic acid was *** maximum adsorption capacity of GN/HCPC composite(calculated by the Langmuir model)could reach 348.43 mg/g,which represented increases of 43.6%and 13.6%over those of the as-prepared pure GN and HCPC,*** Langmuir model and pseudo-second-order kinetic model were found to fit well with the adsorption *** experiments suggested that the adsorption proceeded spontaneously and *** addition,the GN/HCPC composite showed high adsorption performance toward other organic contaminants including tetracycline,bisphenol A and *** of the adsorption capability of GN/HCPC in secondary effluent revealed a slight decrease over that in pure water *** study demonstrated that the GN/HCPC composite can be utilized as a practical and efficient adsorbent for the removal of organic contaminants in wastewater.

关键词： Graphene Hyper-cross-linked polymer Adsorption 2,4-Dichlorophenol

One-step preparation of polyimide-inlaid amine-rich porous organic block copolymer for efficient removal of chlorophenols from aqueous solution

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Journal of Environmental Sciences 2019年第4期31卷 215-229页

作者： Yanyang Liu Haijian Ou Shangqing Li Qingliang You Huixian Liu guiying liao Dongsheng Wang Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Material Science and ChemistryChina University of Geosciences Key Laboratory of Optoelectronic Chemical Materials and Devices Ministry of EducationSchool of Chemical and Environmental EngineeringJianghan University State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of Sciences

A novel polyimide-inlaid amine-rich porous organic block copolymer(PI-b-ARPOP) was prepared via one-step polymerization by using different molar ratios of melamine(MA)/terephthalaldehyde(TA)/pyromellitic dianhydride(PMDA), at molar ratios of 4/3/1, 4/2/2 and 4/1/3. The copolymer contained both aminal groups belonging to ARPOP and imide groups belonging to PI, and the bonding styles of the monomers and growth orientations of the polymeric chains were diversiform, forming an excellent porous structure. Notably, MA/TA/PMDA(4/2/2) had a surface area and pore volume of 487.27 m^2/g and 1.169 cm^3/g,respectively. The adsorption performance of the materials towards 2,4-dichlorophenol(2,4-DCP) in ultra-pure water was systematically studied. The pH value of 7 was optimal in aqueous solution. Na^+ and Cl^-ions did not negatively affect the adsorption process, while humic acid(HA) slightly decreased the capacity. The equilibrium time was 40 sec, and the maximum adsorption capacity reached 282.49 mg/g at 298 K. The removal process was endothermic and spontaneous, and the copolymer could maintain its porous structure and consistent performance after regeneration by treatment with alkali. Moreover, to further assess the practical applicability of the material, the adsorption performance towards 2,4-DCP in river water was also investigated. This paper demonstrated that the PI-b-ARPOP can be an efficient and practical adsorbent to remove chlorophenols from aqueous solution.

关键词： Porous block copolymer Schiff base Polyimide Adsorption 2,4-Dichlorophenol

Improved performance of visible-light photocatalytic H_(2)-production and Cr(Ⅵ) reduction by waste pigeon guano doped g-C_(3)N_(4) nanosheets

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Journal of Materials Science & Technology 2023年第21期152卷 37-49页

作者： Yangli Ke Qingliang You Jing Ai Xiaofang Yang Qigao Shang Yanyang Liu Dongsheng Wang guiying liao Faculty of Materials Science and Chemistry China University of GeosciencesHubei 430074China Key Laboratory of Optoelectronic Chemical Materials and Devices Ministry of EducationSchool of Optoelectronic Materials and TechnologyJianghan UniversityWuhan 430056China Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science School of Environmental StudiesChina University of GeosciencesWuhan 430074China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310058China

In this study,waste pigeon guano(PG)was re-utilized as an ideal biomass adulterant to improve the photocatalytic activity of the pristine graphitic carbon nitride(g-C_(3)N_(4)).Waste PG and melamine were employed as precursors to fabricate a novel porous multielement-doped g-C_(3)N_(4)(CN-PG-S)nanosheets photocatalyst via in situ thermal polycondensation coupled with thermal exfoliation *** CN-PG-S owned abundant uniformly porous structures,superior conductivity,and excellent photocatalytic abilities,resulting in highly-efficient H_(2)-production(1950μmol g^(–1) h^(–1))and Cr(Ⅵ)reduction(99.1%)un-der visible light,which increased by 22.9-folds and 5.3-folds more than that of pristine g-C_(3)N_(4).The non-metallic(P,S,and O)and metallic elements in CN-PG-S played a crucial role in expanding the visible-light absorption range and promoting the separation-migration of photogenerated electron-hole *** the uniformly porous nanosheet structure of CN-PG-S shortens the diffusion paths of photogenerated carri-ers and exposes more active sites for photocatalytic *** study proposed an eco-friendly re-sources integration strategy of waste PG to prepare excellent CN-PG-S photocatalysts for highly-efficient H_(2)-production and Cr(VI)reduction.

关键词： Pigeon guano(PG)doping g-C_(3)N_(4)nanosheets Photocatalyst H_(2)-production Cr(Ⅵ)reduction

Variation of microbiological and small molecule metabolite profiles of Nuodeng ham during ripening by high-throughput sequencing and GC-TOF-MS

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Food Science and Human Wellness 2024年第4期13卷 2187-2196页

作者： Cong Li Yingling Zou Guozhou liao Zijiang Yang Dahai Gu Yuehong Pu Changrong Ge guiying Wang Livestock Product Processing and Engineering Technology Research Center of Yunnan Province Yunnan Agricultural UniversityKunming 650201China College of Food Science and Technology Yunnan Agricultural UniversityKunming 650201China

The internal microbial diversity and small molecular metabolites of Nuodeng ham in different processing years(the first,second and third year sample)were analyzed by high-throughput sequencing technology and gas chromatography-time of flight mass spectrography(GC-TOF-MS)to study the effects of microorganisms and small molecular metabolites on the quality of ham in different processing *** results showed that the dominant bacteria phyla of Nuodeng ham in different processing years were Proteobacteria and Firmicutes,the dominant fungi phyla were Ascomycota and Basidiomycota,while Staphylococcus and Aspergillus were the dominant bacteria and fungi of Nuodeng ham,***,252 kinds of small molecular metabolites were identified from Nuodeng ham in different processing years,and 12 different metabolites were screened through multivariate statistical *** metabolic pathway analysis showed that 23 metabolic pathways were related to ham fermentation,of which 8 metabolic pathways had significant effects on ham fermentation(Impact>0.01,P<0.05).The content of L-proline,phenyllactic acid,L-lysine,carnosine,taurine,D-proline,betaine and creatine were significantly positively correlated with the relative abundance of Staphylococcus and Serratia,but negatively correlated with the relative abundance of Halomonas,Aspergillus and Yamadazyma.

关键词： Nuodeng ham Microbial diversity Small molecule metabolites High-throughput sequencing Gas chromatography-time of flight mass spectrography

PBA-g-PS对ACR/PS共混体系性能的影响

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化工新型材料 2006年第11期34卷 44-47页

作者：廖桂英姜胜斌中国地质大学材料科学与化学工程学院武汉430074 湖北省化学研究所武汉430074

采用大单体技术合成聚苯乙烯和丙烯酸丁酯的规整接枝共聚物PBA-g-PS。研究了共聚合反应条件:聚苯乙烯大单体的投料质量分数,引发剂用量,反应温度对接枝效率的影响;PBA-g-PS可以作为ACR/PS体系的共混增容剂,研究共混物的组成,接枝物的用... 详细信息

采用大单体技术合成聚苯乙烯和丙烯酸丁酯的规整接枝共聚物PBA-g-PS。研究了共聚合反应条件:聚苯乙烯大单体的投料质量分数,引发剂用量,反应温度对接枝效率的影响;PBA-g-PS可以作为ACR/PS体系的共混增容剂,研究共混物的组成,接枝物的用量,接枝物的组成对共混物物理机械性能的影响。用SEM,DSC表征共混物的变化,结果表明,接枝共聚物确实能促进两组分相容,起到增容剂的作用。

关键词：聚苯乙烯大单体接枝共聚物增容剂物理机械性能

聚苯乙烯大单体/丙烯酸辛酯规整接枝共聚物的结构、性能与增容作用

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合成橡胶工业 2007年第4期30卷 275-279页

作者：廖桂英姜胜斌谢洪泉中国地质大学材料科学与化学工程学院湖北武汉430074 湖北省化学研究所湖北武汉430074 华中科技大学化学系湖北武汉430074

用傅里叶变换红外光谱、透射电子显微镜和差示扫描量热仪表征了聚苯乙烯大单体和丙烯酸辛酯规整接枝共聚物(POA-g-PS)的结构,测定了其物理机械性能,并研究了POA-g-PS作为聚苯乙烯/丙烯酸酯橡胶体系的共混增容剂时,共混物组成、接枝物用... 详细信息

用傅里叶变换红外光谱、透射电子显微镜和差示扫描量热仪表征了聚苯乙烯大单体和丙烯酸辛酯规整接枝共聚物(POA-g-PS)的结构,测定了其物理机械性能,并研究了POA-g-PS作为聚苯乙烯/丙烯酸酯橡胶体系的共混增容剂时,共混物组成、接枝物用量及接枝物组成对共混物物理机械性能的影响。结果表明,POA-g-PS属于两相态,存在微观相分离结构;当聚苯乙烯大单体的质量分数在40%左右时,POA-g-PS是一种具有较大拉伸强度、较大扯断伸长率及较小永久变形的热塑性弹性体;扫描电镜和差示扫描量热分析表明接枝共聚物促进了聚苯乙烯/丙烯酸酯橡胶共混体系的互容,起到了增容剂的作用。

关键词：聚苯乙烯大单体丙烯酸辛酯接枝共聚物物理机械性能增容作用

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柔性生态挡墙在膨胀土边坡工程中的应用

水电站设计 2023年第2期39卷 50-53,85页

作者：陈雯廖桂英陈强中国电建集团成都勘测设计研究院有限公司四川成都611130

膨胀土边坡开挖易受大气影响、吸水膨胀、强度软化从而导致失稳。传统以硬质挡墙、加筋等措施治理膨胀土边坡失稳,在传统措施及膨胀土特性研究的基础上,构建基于防排水结构的柔性生态挡墙体系,利用低含水率膨胀土强度维持边坡稳定,通过... 详细信息

膨胀土边坡开挖易受大气影响、吸水膨胀、强度软化从而导致失稳。传统以硬质挡墙、加筋等措施治理膨胀土边坡失稳,在传统措施及膨胀土特性研究的基础上,构建基于防排水结构的柔性生态挡墙体系,利用低含水率膨胀土强度维持边坡稳定,通过结构分区实现体系多功能化,该结构具有适应性强、生态美观、节能环保、施工便捷等特点。本文介绍了该体系的结构特征、技术要点,并辅以工程案例展示与应用评价。

关键词：柔性挡墙生态护坡膨胀土边坡开挖一体化

多官能化溶聚丁苯橡胶的制备及在节能轮胎中的应用

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世界橡胶工业 2016年第10期43卷 44-51页

作者：张颖廖桂英张新军中国地质大学材料工程及化学学院湖北武汉430000 北京橡胶工业研究设计院北京100143

将极性分子引入溶聚丁苯橡胶(SSBR)中,进行了合成方面的研究,同时对合成的官能化的SSBR、通用丁苯橡胶及进口官能化的SSBR在胎面胶的应用方面进行了性能检测。结果表明,使用通用SSBR胎面胶的滚动阻力相比乳聚丁苯橡胶(ESBR)的改善率达2... 详细信息

将极性分子引入溶聚丁苯橡胶(SSBR)中,进行了合成方面的研究,同时对合成的官能化的SSBR、通用丁苯橡胶及进口官能化的SSBR在胎面胶的应用方面进行了性能检测。结果表明,使用通用SSBR胎面胶的滚动阻力相比乳聚丁苯橡胶(ESBR)的改善率达22%;官能化率低的SSBR相比于通用SSBR的滚动阻力又可改善10%;多官能化的"SSBR-N-Si加成物"相比于极性低分子有机硅化合物改性的SSBR滚动阻力还可改善25%,极性基团愈多且相对含量愈高的SSBR滚动阻力愈低。同时,官能化的SSBR还具有较低的生热性和加工性。官能化的SSBR将是合成橡胶及绿色轮胎工业发展的方向。

关键词：端基官能化溶聚丁苯橡胶绿色轮胎低滚动阻力节能