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High Fluorescence Porous Organic Cage for Sensing Divalent Palladium Ion and Encapsulating Fine Palladium Nanoparticles

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Chinese Journal of Chemistry 2022年第3期40卷 385-391页

作者： Huimin Ren Chao Liu Xu Ding Xianzhang Fu hailong wang Jianzhuang Jiang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Porous organic cages(POCs)as an innovative type of porous molecular materials enable multifunctional ***,a fluorescence POC(denoted as 1)has been constructed by means of 5/5'-((2/5-dimethoxy-l/4-phenylene)bis(ethyne-2/1-diyl))diiso-phthalaldehyde condensing with cyclohexanediamine enantiomer with the aid of trifluoroacetic acid.1 exhibits the permanent void and prominent fluorescence with relative quantum yield of 73%confirmed by gas sorption and emission experiments,***,this organic cage is capable of sensing diavalent Pd2+according to the fluorescence response to the addition of various metal *** dispersion of 1 in methanol containing palladium acetate was stirred at 25℃and then 80℃to reduce Pd2+ions into nanoparticles(NPs),leading to the composite(Pd@l)composed of fine Pd NPs with the size of co.1.8 *** catalytic nature of Pd@l over NaBH4 promoted the degeneration of nitrobenzene and congo *** work introduces one new case of POCs with versatile properties and functions,including ion fluorescence recognition,fine Pd NPs stabilizer,and gas adsorption,enriching the family of POC-based materials.

关键词： Catalysis Fluorescence recognition Nanoparticles Cage compounds Palladium

1800m3高炉上料卷扬电控系统改造实践研究

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仪器仪表用户 2024年第5期31卷 65-67页

作者：余高文李平郑威王海龙甘肃酒钢集团宏兴股份公司炼铁厂

本文主要介绍了1800m3高炉上料卷扬电控系统改造实践。重点对上料卷扬电控系统的传动控制部分进行了论述。本文也阐述了1800m3高炉上料卷扬电控系统改造过程中遇到的困难、调试的重点难点问题等内容，通过改造前后的对比，阐述了改造的... 详细信息

本文主要介绍了1800m3高炉上料卷扬电控系统改造实践。重点对上料卷扬电控系统的传动控制部分进行了论述。本文也阐述了1800m3高炉上料卷扬电控系统改造过程中遇到的困难、调试的重点难点问题等内容，通过改造前后的对比，阐述了改造的意义及效果，为后期其他高炉的改造奠定了基础。

关键词：上料卷扬电控系统传动控制改造实践

Boosting a sub-10 nm nanogap array by plasmon-triggered waveguide resonance

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Photonics Research 2020年第12期8卷 1850-1856页

作者： YU TIAN hailong wang YIJIA GENG LILI CONG YU LIU WEIQING XU SHUPING XU State Key Laboratory of Supramolecular Structure and Materials Institute of Theoretical ChemistryCollege of ChemistryJilin UniversityChangchun 130012China State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China

Gap-type metallic nanostructures are widely used in catalytic reactions,sensors,and photonics because the hotspot effect on these nanostructures supports giant local electromagnetic field *** achieve hotspots,researchers devote themselves to reducing gap distances,even to 1 ***,current techniques to fabricate such narrow gaps in large areas are still ***,a new coupling way to boost the sub-10 nm plasmonic nanogap array is developed,based on the plasmon-triggered optical waveguide resonance via near-field *** effect leads to an amplified local electromagnetic field within the gap regions equivalent to narrower gaps,which is evidenced experimentally by the surface-enhanced Raman scattering intensity of probed molecules located in the gap and the finite-difference time-domain numerical simulation *** study provides a universal strategy to promote the performance of the existing hotspot configurations without changing their geometries.

关键词： waveguide scattering narrow

儿童眼眶占位性病变287例临床分布特征分析

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中国眼耳鼻喉科杂志 2024年第2期24卷 128-133页

作者：张少波王萍王海龙叶飞飞李娜李养军空军军医大学第二附属医院眼科西安710038 商洛市中心医院眼科商洛726000

目的探讨儿童眼眶占位性病变的病种分类和疾病分布特征。方法回顾性病例系列研究。收集2012年1月—2022年6月空军军医大学第二附属医院眼科收治入院的287例儿童眼眶占位性病变的临床资料,按照Shields分类方法,以不同性别和年龄对眼眶良... 详细信息

目的探讨儿童眼眶占位性病变的病种分类和疾病分布特征。方法回顾性病例系列研究。收集2012年1月—2022年6月空军军医大学第二附属医院眼科收治入院的287例儿童眼眶占位性病变的临床资料,按照Shields分类方法,以不同性别和年龄对眼眶良、恶性疾病进行分类,分析疾病的病种分类及分布特征。结果287例儿童眼眶占位性病变中,良性病变占91.29%,恶性病变占8.71%。良性病变以囊性病变、血管性病变、神经源性肿瘤等为主,其中皮样囊肿最多见。恶性病变以肌源性肿瘤、淋巴造血系统肿瘤为主,其中横纹肌肉瘤最常见。儿童眼眶占位性病变多见于0~4岁,其中皮样囊肿、毛细血管瘤的发病率与年龄具有相关性(P<0.05)。病变性质与性别的相关性不显著,但朗格汉斯细胞组织细胞增生症、皮样囊肿、毛细血管瘤、横纹肌肉瘤等多见于男性患者。结论儿童眼眶占位性病变与成人的疾病分布不同,主要以先天性和胚胎性病变为主。良性病变以皮样囊肿为主,恶性病变以横纹肌肉瘤为主,部分疾病具有明显的年龄和性别倾向。

关键词：儿童眼眶占位性病变病种分类疾病分布特征

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高盐油藏聚合物调驱剂筛选及适应性评价

当代化工研究 2024年第12期 104-106页

作者：王海龙王东张秋陌王兴斌梁秋月延长油田股份有限公司定边采油厂陕西718600 延长油田股份有限公司志丹采油厂陕西717500

本文主要对高盐油藏聚合物调驱剂进行筛选,并评价其相应适应性。分别配制超高分子量抗盐聚合物:(1)微交联抗盐聚合物;(2)抗盐聚合物;(3)弱凝胶溶液,对高盐油藏聚合物调驱剂性能进行分析。研究结果表明,采用软化水配制聚合物溶液且压力在... 详细信息

本文主要对高盐油藏聚合物调驱剂进行筛选,并评价其相应适应性。分别配制超高分子量抗盐聚合物:(1)微交联抗盐聚合物;(2)抗盐聚合物;(3)弱凝胶溶液,对高盐油藏聚合物调驱剂性能进行分析。研究结果表明,采用软化水配制聚合物溶液且压力在0.4~0.8 MPa范围内效果最好。聚合物调驱剂在高盐环境下具有较好的稳定性和调驱效果,有效地改善高盐油藏的采收率。本研究为高盐油藏的调驱剂筛选和应用提供了重要参考。

关键词：高盐油藏聚合物调驱剂适应性评价

Visualizing the emerging trends of biochar research and applications in 2019:a scientometric analysis and review

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Biochar 2020年第2期2卷 135-150页

作者： Ping Wu Zeyu wang hailong wang Nanthi S.Bolan Yujun wang Wenfu Chen Hebei Key Laboratory of Soil Ecology Key Laboratory for Agricultural Water ResourceCenter for Agricultural Resources ResearchInstitute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China University of Chinese Academy of Sciences Beijing 100049China Biochar Engineering Technology Research Center of Guangdong Province School of Environmental and Chemical EngineeringFoshan UniversityFoshan 528000GuangdongChina Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province Zhejiang A&F UniversityHangzhou 311300ZhejiangChina Global Centre for Environmental Remediation and International Centre for Balanced Land UseUniversity of NewcastleCallaghanNSW 2308Australia Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008JiangsuChina Biochar Engineering and Technology Research Center of Liaoning Province Rice Research InstituteAgronomy CollegeShenyang Agricultural UniversityShenyang 110866LiaoningChina

Biochar,derived from thermal pyrolysis of biomass,has been regarded as a low-cost,sustainable and beneficial material and widely applied in agriculture,environment and energy during the last two *** elucidate the research status timely and future trends in biochar field,CiteSpace is used to systematically analyze the related literature retrieved from the Web of Science core collection in *** on the keywords clustering analysis,it was found that“biochar production”,“organic pollutants removal”,“heavy metals immobilization”,“bioremediation”were the main hotspots in research covering biochar.“Bioremediation”is an emerging topic and deserves extensive attention due to its highly effective and environmentally friendly treatment of *** the phytoremediation effect,immobilizing functional microorganisms on biochar,and using microorganisms as raw materials to produce biochar were the common methods of biochar-assisted *** studies focused on“soil quality and plant growth”and“biochar and global climate change”decreased,investigations concentrated in the toxicity of biochar to soil biota and ruminants are sustainably *** on direct and catalytic thermal pyrolysis of green waste(mainly microalgae)for biofuels(bio-oil,biodiesel,syngas,etc.)and biochar production is *** municipal wastes(e.g.,sewage sludge,fallen leaves)into biochar through pyrolysis was a suitable treatment for municipal waste and became a popular topic in recent ***,the biochar produced from these municipal wastes exhibited excellent performance in the removal of pollutants from wastewater and *** review may help to identify future directions in biochar research and applications.

关键词： Biochar CiteSpace Toxicity Bioremediation Research direction

Phytolith carbon sequestration in bamboos of different ecotypes:a case study in China

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Chinese Science Bulletin 2014年第31期59卷 4816-4822页

作者： Beilei Li Zhaoliang Song hailong wang Fengshan Guo Renyi Gui Xiaomin Yang Ruisheng Song School of Environmental and Resource Sciences Zhejiang Agricultural and Forestry University Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration Zhejiang Agricultural and Forestry University State Key Laboratory of Environmental Geochemistry Institute of Geochemistry Chinese Academy of Sciences School of Forestry and Bio-technology Zhejiang Agricultural and Forestry University

Occlusion of carbon(C) within phytoliths(Phyt OC) is becoming one of the most promising terrestrial C sequestration mechanisms. This study explored the production of Phyt OC within 35 bamboo species belonging to three ecotypes using methods of microwave digestion. The aim of this study is to explore the present and potential C sequestration rate within phytoliths of bamboo species from three ecotypes. Phyt OC content in bamboos of three ecotypes ranges from 0.07 % to 0.42 %. The mean Phyt OC production flux decreases as: clustered bamboo(0.050 ±0.016 t CO2ha-1a-1) & mixed bamboo(0.049 ± 0.016 t CO2ha-1a-1) [ scattered bamboo(0.038 ± 0.020 t CO2ha-1a-1). The phytolith carbon sequestration in Chinese bamboo is estimated to be 0.293 ± 0.127 Tg(1 Tg =1012g) CO2a-1; approximately 75 %, 3 %, and 22 % of which is contributed from scattered, mixed and clustered bamboo, respectively. Taking the Phyt OC production flux of 0.18 ± 0.12 t CO2ha-1a-1and current annual area increasing rate of 3 %, global bamboo phytoliths wouldsequester 11.9 ± 7.9 Tg CO2a-1by 2050. Consequently,bamboo forests have significant potential to mitigate the increasing concentration of atmospheric CO2 by maximizing Phyt OC production flux and expanding bamboos.

关键词：植硅体生态型碳封存中国大气二氧化碳浓度案例 CO2 消解方法

Synthesis of 2-trifluoromethylquinolines through rhodium-catalysed redox-neutral[3+3]annulation between anilines and CF_(3)-ynones using traceless directing groups

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Organic Chemistry Frontiers 2022年第2期9卷 413-419页

作者： Haichao Huang hailong wang Chao Gong Zhenjing Zhuang Wenmin Feng Si-Hai Wu Lianhui wang School of Medicine Huaqiao UniversityQuanzhou362021P.R.China

Rhodium-catalysed regioselective redox-neutral[3+3]-cycloaddition of anilines with CF_(3)-ynones was achieved via a traceless directing group strategy.A variety of substituted 2-trifluromethylquinoline compounds were ... 详细信息

关键词： properties. aniline neutral

Interactions between lead(Ⅱ) ions and dissolved organic matter derived from organic fertilizers incubated in the field

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Journal of Environmental Sciences 2022年第11期34卷 77-89页

作者： Long Chen Boling Li Zhipeng Wu Qingjie Zhao Qiuyue wang hailong wang Bhupinder Pal Singh Weidong Wu Chuanliang Fu College of Tropical Crops Hainan UniversityHaikou 570228China School of Environmental and Chemical Engineering Foshan UniversityFoshan 528000China Department of Primary Industries Elizabeth Macarthur Agricultural InstituteMenangleNSW 2568Australia Institute of Agricultural Environment and Soil Hainan Academy of Agricultural SciencesHaikou 571100China Key Laboratory of Arable Land Conservation of Hainan Province Haikou 571100China

This work was to study composition characteristics and the subsequent effect on the lead(Pb) binding properties of dissolved organic matter(DOM) derived from seaweed-based(SWOF) and chicken manure organic fertilizers(CMOF) during a one-year field incubation experiment using the excitation-emission matrix-parallel factor(EEM-PARAFAC) and twodimensional correlation spectroscopy(2DCOS) analysis. Results showed that high aromatic and hydrophobic fluorescent substances were enriched in CMOF-derived DOM and SWOFderived DOM and enhanced over time. And phenolic groups in the fulvic-like substances for SWOF-derived DOM and carboxyl groups in the humic-like substances for CMOF-derived DOM had the fastest responses over time, respectively. Moreover, both non-fluorescent polysaccharides and fluorescent humic-like substances or fulvic-like substances with aromatic(C=C) groups first participated in the binding process of Pb to SWOF-derived DOM on day 0 and 180 during the lead binding process. In contrast, humic-like substances associated with aromatic(C=C) and phenolic groups gave a faster response to Pb binding on day 360. Regarding CMOF-derived DOM, the fulvic-like substances associated with aromatic(C=C) and carboxylic groups displayed a faster response to Pb ions on day 0. Nonetheless,polysaccharides and humic-like associated with phenolic groups had a faster response on days 180 and 360. It is noteworthy that the polysaccharides, which participated in Pb binding to CMOF-derived DOM, posed a higher risk of Pb in the environment after 360 days. Therefore, these findings gave new insights into the long-term applications of commercial organic fertilizers for the amendment of soil.

关键词： DOM Commercial organic fertilizer Parallel factor analysis Two-dimensional correlation spectroscopy Lead(Pb)