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Frontiers of Chemical Science and Engineering 2024年第2期18卷 113-125页

作者： Feng zhang Shuainan Xu Xiumei Geng Meixia Shan yatao zhang School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China

Polymers of intrinsic microporosity shows great potential for dye adsorption and magnetic Fe_(3)O_(4) are easy to be *** this work,hydrolyzed polymers of intrinsic microporosity-1/Fe_(3)O_(4) composite adsorbents were prepared by phase inversion and hydrolysis process for cationic dye *** chemical structure and morphology of the composite adsorbents were systematically characterized by several characterization *** methylene blue as the target dye,the influences of solution pH,contact time,initial dye concentration,and system temperature on the methylene blue adsorption process were *** incorporation of Fe_(3)O_(4) particle into hydrolyzed polymers of intrinsic microporosity-1 endow the adsorbent with high magnetic saturation(20.7 emu·g^(–1))which allows the rapid separation of the ***,the adsorption process was simulated by adsorption kinetics,isotherms and thermodynamics to gain insight onto the intrinsic adsorption *** addition,the composite adsorbents are able to selectively adsorb cationic dyes from mixed dyes *** polymers of intrinsic microporosity/Fe_(3)O_(4) shows only a slight decrease for methylene blue adsorption after 10 adsorption/regeneration cycles,demonstrating the outstanding regeneration *** high adsorption capacity,outstanding regeneration ability,together with simple preparation method,endow the composite adsorbents great potential for selective removal of cationic dyes in wastewater system.

关键词： polymers of intrinsic microporosity magnetic adsorbent cationic dye adsorption

In-situ incorporation of halloysite nanotubes with 2D zeolitic imidazolate framework-L based membrane for dye/salt separation

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Chinese Journal of Chemical Engineering 2023年第6期58卷 103-111页

作者： Yafei Su Xuke zhang Hui Li Donglai Peng yatao zhang School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Research Department of New Materials Zhengzhou Institute of Emerging Industrial TechnologyZhengzhou 450045China School of Material&Chemical Engineering Zhengzhou University of Light IndustryZhengzhou 450002China

Layered assembled membranes of 2D leaf-like zeolitic imidazolate frameworks(ZIF-L)nanosheets have received great attention in the field of water treatment due to the porous structure and excellent antibacterial ability,but the dense accumulation on the membrane surface and the low permeate flux greatly hinder their ***,we synthesized m HNTs(modified halloysite nanotubes)/ZIF-L nanocomposites on modified m HNTs by in situ growth ***,due to the different size of m HNTs and ZIF-L,m HNTs were packed in ZIF-L *** hollow m HNTs provided additional transport channels for water molecules,and the accumulation of the ZIF-L nanosheets was decreased after assembling m HNTs/ZIF-L nanocomposites into membrane by *** prepared m HNTs/ZIF-L membrane presented high permeate flux(59.6 L·m^(-2)·h^(-1)),which is 2-4 times of the ZIF-L membranes(14.8 L·m^(-2)·h^(-1)).Moreover,m HNTs/ZIF-L membranes are intrinsically antimicrobial,which exhibit extremely high bacterial *** provide a controllable strategy to improve 2D ZIF-L assembles,and develops novel membranes using 2D package structure as building units.

关键词： Zeolitic imidazolate framework Halloysite nanotubes 2D nanocomposites In-situ growth Dye/salt separation membrane Antibacterial property

Manipulating the ionic nanophase of Nafion by in-situ precise hybridization with polymer quantum dot towards highly enhanced fuel cell performances

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Nano Research 2022年第5期15卷 4124-4131页

作者： Wenjia Wu Zhuofan Zhou Yan Wang yatao zhang Yong Wang Jingtao Wang Yecheng Zou School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450003China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China State Key Laboratory of Fluorinated Functional Membrane Materials Shandong DongYue Polymer Material Co.Ltd.Zibo 256400China

Hierarchical-structure materials hold great promise for numerous applied domains such as fuel cell,sensor,and ***,the developments are significantly impeded by the lack of efficient strategy permitting precise and efficient decoration of specific confined ***,an in-situ precise hybridization strategy is proposed to efficiently manipulate the nanostructure of membrane ***,Nafion ionic nanochannels are impregnated with precursors via heat swelling,followed by microwave-assisted condensation to form polymer quantum dot *** formation of polymer quantum dot network significantly improves the stability and functionality of ionic nanophase(i.e.,ionic nanochannel).This helps hybrid membrane achieving enhanced proton conduction and methanol barrier properties,resulting in over ten times increase in proton/methanol *** then impart prominent device performances for both hydrogen and methanol fuel cells with the elevation of~100%.Importantly,such function manipulation of ionic nanochannels is achieved with fully maintaining function of backbone ***,the regulation of physical topology and chemical environment of ionic nanochannel also brings optimization of gas and ion separation *** facile and versatile strategy may open up a new avenue for decorating confined space of many hierarchical-structure materials.

关键词： nanophase-separated membrane in-situ precise hybridization polymer quantum dot nanophase decoration performance enhancement

Research progress in removal of trace carbon dioxide from closed spaces

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Frontiers of Chemical Science and Engineering 2007年第3期1卷 310-316页

作者： zhang yatao FAN Lihai zhang Lin CHEN Huanlin College of Materials Science and Chemical Engineering Zhejiang UniversityHangzhou 310027China

In this paper,the removal of trace carbon dioxide from closed spaces through membrane process and biotrans-formation are introduced in *** methods include the microalgae photobioreactor,membrane microalgae photobio-reactor,supported liquid membrane,membrane gas-liquid contactor,hydrogel membrane,and enzyme membrane *** advantages and disadvantages of these methods are *** is found that higher CO_(2) removal efficiency can be obtained in biotransformation and membrane ***,a large volume and high energy consumption are needed in biotransformation,while the low permeability and stability must be solved in the membrane process.

关键词： CO_(2)removal membrane process microalgae biotransformation

The Brassica napus GATA transcription factor ***1 is a stigma compatibility factor

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Journal of Integrative Plant Biology 2020年第8期62卷 1112-1131页

作者： Zhiqiang Duan yatao zhang Jinxing Tu Jinxiong Shen Bin Yi Tingdong Fu Cheng Dai Chaozhi Ma National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China

Self-incompatibility(SI)is a genetic mechanism that rejects self-pollen and thus prevents inbreeding in some hermaphroditic *** the Brassicaceae,SI involves a pollen-stigma recognition system controlled by a single locus known as the S locus,which consists of two highly polymorphic genes that encode S-locus cysteine-rich protein(SCR)and S-receptor kinase(SRK).When self-pollen lands on the stigma,the S-haplotype-specific interaction between SCR and SRK triggers ***,we show that the GATA transcription factor ***1 suppresses SI responses in Brassica napus and is induced after compatible *** loss-of-function mutant ***1 displays reduced *** contrast,overexpression of ***1 in self-incompatible stigmas leads to a partial breakdown of SI responses,suggesting that ***1 is a stigmatic compatibility ***,the expression levels of SRK and ARC1 are up-regulated in ***1 mutants,and they are down-regulated in ***1 overexpressing *** affects the cellular localization of ***1 through direct protein–protein ***,our findings highlight the fundamental role of ***1 in SI responses in ***,establishing a direct interaction between ***1 and SRK in this process.

关键词： interaction. compatibility establishing

The telomere-to-telomere gap-free reference genome of wild blueberry (Vaccinium duclouxii) provides its high soluble sugar and anthocyanin accumulation

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Horticulture Research 2023年第11期10卷 141-154页

作者： Tuo Zeng Zhijiao He Jiefang He Wei Lv Shixiang Huang Jiawen Li Liyong Zhu Shuang Wan Wanfei Zhou Zhengsong Yang yatao zhang Chong Luo Jiawei He Caiyun Wang Liangsheng Wang School of Life Sciences Guizhou Normal UniversityGuiyang 550000China Institute of Alpine Economic Plant Yunnan Academy of Agricultural SciencesLijiang 674199YunnanChina School of Advanced Agricultural Sciences Peking University100871 BeijingChina National Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops College of Horticulture&Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Wuhan Benagen Technology Co. LtdWuhan 430070China Key Laboratory of Plant Resources Institute of BotanyChinese Academy of SciencesBeijing 100093China China National Botanical Garden Beijing 100093China University of Chinese Academy of Sciences Beijing 100049China

Vaccinium duclouxii,endemic to southwestern China,is a berry-producing shrub or small tree belonging to the Ericaceae family,with high nutritive,medicinal,and ornamental value,abundant germplasm resources,and good edible *** addition,*** exhibits strong tolerance to adverse environmental conditions,making it a promising candidate for research and offering wide-ranging possibilities for ***,the lack of *** genome sequence has hampered its development and ***,a high-quality telomere-to-telomere genome sequence of *** was de novo assembled and *** of 12 chromosomes were assembled into gap-free single contigs,providing the highest integrity and quality assembly reported so far for *** *** genome is 573.67 Mb,which encodes 41953 protein-coding *** transcriptomics and metabolomics analyses,we have uncovered the molecular mechanisms involved in sugar and acid accumulation and anthocyanin biosynthesis in *** provides essentialmolecular information for further research on the quality of ***,the high-quality telomere-to-telomere assembly of the *** genome will provide insights into the genomic evolution of Vaccinium and support advancements in blueberry genetics and molecular breeding.

关键词： sugar offering berry

交叉持股的机构投资者能够抑制企业商誉泡沫吗?

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经济学报 2023年第1期10卷 125-161页

作者：张亚涛南开大学金融学院

本文以2008—2020年我国A股上市公司为研究对象,考察了机构交叉持股对企业商誉泡沫的影响。研究发现,交叉持股的机构投资者可以有效抑制企业商誉泡沫;机制研究表明,交叉持股的机构投资者主要通过降低企业代理成本和信息不对称来抑制企... 详细信息

本文以2008—2020年我国A股上市公司为研究对象,考察了机构交叉持股对企业商誉泡沫的影响。研究发现,交叉持股的机构投资者可以有效抑制企业商誉泡沫;机制研究表明,交叉持股的机构投资者主要通过降低企业代理成本和信息不对称来抑制企业商誉泡沫;进一步研究发现,在内部控制质量和市场化程度较高的企业中,交叉持股的机构投资者对商誉泡沫的抑制作用更为明显。此外,相比一般法人类机构投资者,金融类机构投资者交叉持股对企业商誉泡沫的抑制作用更显著。本文在理论和实证上丰富了机构交叉持股和企业商誉领域的研究,为监管部门和上市公司化解商誉泡沫提供了新思路和新范式。

关键词：机构交叉持股商誉泡沫代理成本信息不对称

聚(丙烯酸-丙烯酰胺)/水滑石纳米复合高吸水性树脂的制备及表征

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化工学报 2008年第6期59卷 1565-1570页

作者：张亚涛张林陈欢林浙江大学化学工程与生物工程学系浙江杭州310027

首先用尿素法合成了水滑石(HT),然后用甲基丙烯磺酸钠(SMAS)对水滑石进行插层,得到了插层的水滑石(SMAS-HT),最后通过反相悬浮聚合制备了一种新型的聚(丙烯酸-丙烯酰胺)/水滑石纳米复合高吸水性树脂,其中N,N′-亚甲基双丙烯酰胺(NMBA)... 详细信息

首先用尿素法合成了水滑石(HT),然后用甲基丙烯磺酸钠(SMAS)对水滑石进行插层,得到了插层的水滑石(SMAS-HT),最后通过反相悬浮聚合制备了一种新型的聚(丙烯酸-丙烯酰胺)/水滑石纳米复合高吸水性树脂,其中N,N′-亚甲基双丙烯酰胺(NMBA)为交联剂,过硫酸钾(KPS)为引发剂。通过傅里叶变换红外光谱(FTIR)、X-射线衍射(XRD)及扫描电镜(SEM)等手段表征其结构和形貌。考察了SMAS-HT的含量对其吸水(盐)性能的影响。结果表明,插入SMAS的水滑石片层在聚合后发生了剥离,添加少量的SMAS-HT可以明显提高树脂的吸水(盐)性能,当SMAS-HT含量为3.0%(质量)时,树脂的吸(盐)水性能达到最大。

关键词：水滑石纳米复合材料高吸水性树脂

改性氧化石墨烯/聚醚砜杂化荷正电纳滤膜的制备及表征

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高等学校化学学报 2014年第5期35卷 1100-1105页

作者：余亮张亚涛刘金盾郑州大学化工与能源学院郑州450001

以壳聚糖荷正电改性的氧化石墨烯为无机添加剂,以聚醚砜为膜材料,聚乙烯吡咯烷酮为致孔剂,以N,N-二甲基乙酰胺为溶剂,采用相转化法制备了有机无机杂化纳滤膜.考察了不同改性氧化石墨烯添加量对膜分离性能的影响.研究结果表明,随着改性... 详细信息

以壳聚糖荷正电改性的氧化石墨烯为无机添加剂,以聚醚砜为膜材料,聚乙烯吡咯烷酮为致孔剂,以N,N-二甲基乙酰胺为溶剂,采用相转化法制备了有机无机杂化纳滤膜.考察了不同改性氧化石墨烯添加量对膜分离性能的影响.研究结果表明,随着改性氧化石墨烯含量的增加,荷正电纳滤膜的断面形态结构并未发生明显改变,但杂化膜的纯水通量、分离选择性明显增加.从研究结果可以看出,改性氧化石墨烯的最佳添加质量分数在0.5%左右.

关键词：氧化石墨烯壳聚糖聚醚砜纳滤膜脱盐

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有限理性、前景理论和基金净资金流

投资研究 2022年第6期41卷 76-95页

作者：张亚涛南开大学金融学院

本文通过构建基金前景理论价值函数值(TK),考察了前景理论能否解释投资者的基金选择行为。研究发现:(1)TK与基金净资金流正相关但与基金未来业绩负相关,表明基金投资者是有限理性的且具有前景理论偏好;(2)基金投资者在挑选基金时表现出... 详细信息

本文通过构建基金前景理论价值函数值(TK),考察了前景理论能否解释投资者的基金选择行为。研究发现:(1)TK与基金净资金流正相关但与基金未来业绩负相关,表明基金投资者是有限理性的且具有前景理论偏好;(2)基金投资者在挑选基金时表现出损失厌恶、风险偏好逆转和小数法则偏差等行为偏差;(3)TK能够正向预测个人投资者净资金流,但无法预测机构投资者净资金流;(4)TK对基金净资金流的影响在投资者情绪高涨时更明显。

关键词：前景理论基金净资金流有限理性