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Preventing masks from becoming the next plastic problem

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Frontiers of Environmental Science & Engineering 2021年第6期15卷 125-127页

作者： elvis genbo xu Zhiyong Jason Ren Department of Biology University of Southern DenmarkOdense 5230Denmark Department of Civil and Environmental Engineering and the Andlinger Center for Energy and the Environment Princeton UniversityPrincetonNJ 08544USA

Face masks help prevent the spread of coronavirus and other diseases,and mass masking is recommended by almost all health groups and countries to control the COVID-19 pandemic(Brooks et al.,2020).Recent studies estimated an astounding 129 billion face masks being used globally every month(3 million/minute)and most are disposable face masks made from plastic microfibers(Prata et al.,2020).With increasing reports on inappropriate disposal of masks,it is urgent to recognize this potential environmental threat and prevent it from becoming the next plastic problem.

关键词： Brooks becoming diseases

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The power of green:Harnessing phytoremediation to combat micro/nanoplastics

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Eco-Environment & Health 2024年第3期3卷 260-265页

作者： Wenke Yuan elvis genbo xu Soha Shabaka Peng Chen Yuyi Yang Hubei Key Laboratory of Wetland Evolution&Ecological Restoration Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China Key Laboratory of Lake and Watershed Science for Water Security Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjing 210008China Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station Chinese Academy of Sciences&Hubei ProvinceWuhan 430074China Department of Biology University of Southern DenmarkOdense 5230Denmark National Institute of Oceanography and Fisheries Cairo 11516Egypt

Plastic pollution and its potential risks have been raising public concerns as a global environmental *** plastic waste may double by 2030,posing a significant challenge to the remediation of environmental *** addition to finding alternative products and managing plastic emission sources,effective removal technologies are crucial to mitigate the negative impact of plastic ***,current remediation strategies,including physical,chemical,and biological measures,are unable to compete with the surging amounts of plastics entering the *** perspective lays out recent advances to propel both research and *** this process,phytoaccumulation,phytostabilization,and phytofiltration can be applied to reduce the concentration of nanoplastics and submicron plastics in terrestrial,aquatic,and atmospheric environments,as well as to prevent the transport of microplastics from sources to ***,advocating for a more promising future still requires significant efforts in screening hyperaccumulators,coupling multiple measures,and recycling stabilized plastics from *** can be an excellent strategy to alleviate global micro/nanoplastic pollution because of the cost-effectiveness and environmental sustainability of green technologies.

关键词： Environmental sustainability Hyperaccumulator Microplastics Remediation strategies Technical advances

Multi-omics in nanoplastic research:a spotlight on aquatic life

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Frontiers of Environmental Science & Engineering 2024年第11期18卷 21-38页

作者： Mohamed Helal Min Liu Honghong Chen Mingliang Fang Wenhui Qiu Frank Kjeldsen Knut Erik Tollefsen Vengatesen Thiyagarajan Henrik Holbech elvis genbo xu Department of Biology University of Southern DenmarkOdense 5230Denmark National Institute of Oceanography and Fisheries(NIOF) Cairo 11865Egypt School of Civil and Environmental Engineering Nanyang Technological UniversitySingapore 639798Singapore Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Eastern Institute for Advanced Study Eastern Institute of TechnologyNingbo 315200China School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Environmental Science and Engineering Fudan UniversityShanghai 200433China Department of Biochemistry and Molecular Biology University of Southern DenmarkOdense M 5230Denmark Norwegian Institute for Water Research(NIVA) Oslo N-0579Norway Norwegian University of Life Sciences(NMBU) Ås N-1432Norway The Swire Institute of Marine Sciences School of Biological SciencesThe University of Hong KongHong Kong 999077China

Amidst increasing concerns about plastic pollution’s impacts on ecology and health,nanoplastics are gaining global recognition as emerging environmental *** review aimed to examine the complex molecular consequences and underlying fundamental toxicity mechanisms reported from the exposure of diverse aquatic organisms to *** the comprehensive examination of transcriptomics,proteomics,and metabolomics studies,we explored the intricate toxicodynamics of nanoplastics in aquatic *** review raised essential questions about the consistency of findings across different omics approaches,the value of combining these omics tools to understand better and predict ecotoxicity,and the potential differences in molecular responses between *** amalgamating insights from 37 omics studies(transcriptome 22,proteome six,and metabolome nine)published from 2013 to 2023,the review uncovered both shared and distinct toxic effects and mechanisms in which nanoplastics can affect aquatic life,and recommendations were provided for advancing omics-based research on nanoplastic *** comprehensive review illuminates the nuanced connections between nanoplastic exposure and aquatic ecosystems,offering crucial insights into the complex mechanisms that may drive toxicity in aquatic environments.

关键词： Ecotoxicity Transcriptomics Metabolomics Proteomics Plastic pollution Toxicity mechanisms

Fracture propagation laws of staged hydraulic fracture in fractured geothermal reservoir based on phase field model

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International Journal of Coal Science & Technology 2023年第4期10卷 128-138页

作者： genbo Peng School of Environment Liaoning UniversityShenyang 110036China

Hydraulic fracturing is widely used in geothermal resource exploitation, and many natural fractures exist in hot dry rock reservoirs due to in-situ stress and faults. However, the infuence of natural fractures on hydraulic fracture propagation is not considered in the current study. In this paper, based on the phase feld model, a thermo-hydro-mechanical coupled hydraulic fracture propagation model was established to reveal the infuence of injection time, fracturing method, injection fow rate, and natural fracture distribution on the fracture propagation mechanism. The results show that fracture complexity increases with an increase in injection time. The stress disturbance causes the fracture initiation pressure of the second cluster signifcantly higher than that of the frst and third clusters. The zipper-type fracturing method can reduce the degree of stress disturbance and increase fracture complexity by 7.2% compared to simultaneous hydraulic fracturing. Both low and high injection fow rate lead to a decrease in fracture propagation time, which is not conducive to an increase in fracture complexity. An increase in the natural fracture angle leads to hydraulic fracture crossing natural fracture, but has a lesser efect on fracture complexity. In this paper, we analyzed the infuence of diferent factors on initiation pressure and fracture complexity, providing valuable guidance for the exploitation of geothermal resources.

关键词： Hot dry rock Enhanced geothermal system Phase feld model Fracture propagation

Time to integrate“One Health Approach”into nanoplastic research

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Eco-Environment & Health 2023年第1期2卷 18-20页

作者： Mohamed Helal Nanna B.Hartmann Farhan R.Khan elvis genbo xu Department of Biology University of Southern DenmarkOdense5230Denmark Department of Environmental and Resource Engineering Technical University of Denmark2800 Kgs.LyngbyDenmark Norwegian Research Centre(NORCE) Nygårdsporten 112NO-5008BergenNorway

Large-scale production of plastics began in the 1950s followed by an onset of exponential growth,leading to its current widespread and dominant *** this,no holistic risk assessment has yet been made on the health and environmental impacts of plastics,their degradation products,or their constituent *** entering the environment,plastics undergo structural,chemical,and functional transformations,leading to the creation of microplastics and nanoplastics[1,2,3].Environmental exposure to microplastics and nanoplastics becomes inevitable,causing direct human dietary exposure.

关键词： plastics integrate spite

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水生植物对亚微米塑料的吸收、积累和响应

水生植物对亚微米塑料的吸收、积累和响应

第四届全国（海洋）环境微塑料污染与管控学术研讨会

作者：苑文珂 elvis genbo xu 李连桢周阿美杨玉义中国科学院武汉植物园中国科学院水生植物与流域生态重点实验室南丹麦大学生物系青岛大学环境科学与工程学院

由于在环境中分布广泛和未知的生态效应,微纳米塑料逐渐引起人们的关注。然而,关于水生植物对微纳米塑料的吸收和生态影响方面仍存在巨大的知识差距。本研究中,我们应用铕掺杂聚苯乙烯塑料颗粒(PS-Eu)准确追踪和定量了水生植物对亚微米... 详细信息

由于在环境中分布广泛和未知的生态效应,微纳米塑料逐渐引起人们的关注。然而,关于水生植物对微纳米塑料的吸收和生态影响方面仍存在巨大的知识差距。本研究中,我们应用铕掺杂聚苯乙烯塑料颗粒(PS-Eu)准确追踪和定量了水生植物对亚微米塑料的吸收和运输,并分析了不同类型水生植物在富集和去除水环境中亚微米塑料方面的潜力。为了模拟不同的环境条件,我们将不同类型水生植物暴露于添加铕掺杂聚苯乙烯亚微米塑料(100 nm和2μm)的水体或沉积物中。在微宇宙中培养8周后,通过激光共聚焦显微镜和扫描电镜验证了PS-Eu在植物组织中的分布和迁移;通过电感耦合等离子体质谱仪测定了不同水生植物对PS-Eu的吸收;评估了不同暴露途径下三种水生植物对亚微米塑料的生理生长响应和生物富集系数。研究发现PS-Eu主要聚集在细胞间隙,可能通过质外途径和维管束从根运输到叶。质谱分析表明水生植物可吸收高达6250μg/g的亚微米塑料(主要聚集在根部),生物富集系数为5.2～306.5。同时,水体或沉积物中的亚微米塑料暴露均未对水生植物的生理生长造成显著影响。水生植物在吸收微纳米塑料方面的独特优势和对微纳米塑料暴露的高耐受性表明了它们在淡水环境中修复微纳米塑料污染的巨大潜力。

关键词：塑料污染金属掺杂颗粒水生植物生物累积植物修复

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有机紫外滤波材料的紫外光谱性质研究

光学学报 2009年第7期29卷 1918-1920页

作者：许智煌庄欣欣苏根博中国科学院福建物质结构研究所福建福州350002 中国科学院研究生院北京100039

通过缩合反应合成了一种有机紫外滤波染料-2,7二甲基-3,6-偶氮环庚-1,6-二烯高氯酸盐,并采用元素分析、红外光谱、紫外光谱等手段对其进行表征,着重讨论了不同浓度的染料溶液和染料掺杂的聚乙烯醇(PVA)薄膜的紫外光谱性质。实验表明,当... 详细信息

通过缩合反应合成了一种有机紫外滤波染料-2,7二甲基-3,6-偶氮环庚-1,6-二烯高氯酸盐,并采用元素分析、红外光谱、紫外光谱等手段对其进行表征,着重讨论了不同浓度的染料溶液和染料掺杂的聚乙烯醇(PVA)薄膜的紫外光谱性质。实验表明,当染料浓度较低时,溶液的最大吸收波长为322 nm,薄膜的最大吸收波长为325 nm。随着染料浓度的增加,溶液和PVA膜紫外截止通带宽度加宽,表现为285～345 nm区间为强吸收带,而在日盲紫外波段(240～285 nm)保持较高的透过率。利用染料溶液和染料掺杂的PVA膜的这种光谱特性,制作出日盲紫外滤波器。

关键词：光学材料紫外滤波器紫外光谱染料日盲紫外滤波器

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1,3,5-三苯基苯晶体的溶液降温法生长及其性能

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硅酸盐学报 2017年第4期45卷 557-562页

作者：刘刚许智煌叶李旺苏根博庄榕榕中国科学院福建物质结构研究所福州350002 福建师范大学材料科学与工程学院福州350007 闽南师范大学物理与信息工程学院福建漳州363000

以丙酮为溶剂,采用溶液降温法生长1,3,5-三苯基苯(TPB)晶体。在40~45℃温区下生长出尺寸为19 mm×15 mm×13 mm的透明块状晶体,生长速率约为3 mm/d。通过X射线衍射、光学显微镜观察、热分析、荧光光谱和脉冲形状鉴别(PSD)测试对晶体进... 详细信息

以丙酮为溶剂,采用溶液降温法生长1,3,5-三苯基苯(TPB)晶体。在40~45℃温区下生长出尺寸为19 mm×15 mm×13 mm的透明块状晶体,生长速率约为3 mm/d。通过X射线衍射、光学显微镜观察、热分析、荧光光谱和脉冲形状鉴别(PSD)测试对晶体进行了表征。结果表明:降温法生长的TPB晶体为正交晶系,空间群为Pna21;TPB单晶各向透明度高,没有宏观缺陷,但在各面上均存在生长花纹。TPB晶体的熔点为174℃,蒸发损失发生在283℃;TPB晶体在360 nm处具有相对尖锐和强的带边发射峰。TPB晶体总品质因数(FOM)值为0.85,表明它具有优异的中子/伽马(n/γ)射线辨别能力。

关键词： 1 3 5-三苯基苯晶体丙酮溶液降温法中子/γ射线甄别

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STUDIES ON THE CRYSTAL STRUCTURE OF THIS(HYDROXYMETHYL)METHYLAMMONIUM SALT Ⅰ.THE CRYSTAL STRUCTURE OF THIS(HYDROXYMETHYL)METHYLAMMONIUM DIHYDROGEN PHOSPHATE(HOH2C)3CNH3H2PO4

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结构化学 1988年第2期 148-152页

作者： Wu Jingxian Su genbo Huang Qingzhen Liang JingkuiFujian Institute of Research on the Strcutre of Matter, Academia Sinica

The crystal structure of tris(hydroxymethyl)methylammonium di-hydrogen phosphate(TAMP) has been determined by X-ray structural *** = 219.13, nonoclinic, space group P21, a=8.179(l), b=6.170(2), c=9.576(5)A,β=106.32(3)°,DC= 1.57g·cm-3, Do = 1.56 g·cm3, Z = 2, MoKα radiation,λ=0.71073A, F(000)=232e,R=0.033,Rw=0.050 for 1102 reflections (I)3σ(I)).

关键词： PO TAM HOH2C)3CNH3H2PO4 HYDROXYMETHYL)METHYLAMMONIUM DIHYDROGEN PHOSPHATE HYDROXYMETHYL)METHYLAMMONIUM SALT STUDIES ON THE CRYSTAL STRUCTURE OF THIS THE CRYSTAL STRUCTURE OF THIS