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生物炭改良盐碱地研究与应用进展

环境科学 2024年第2期45卷 940-951页

作者：魏盈焦乐张鹏刘福德肖辉董昱辰孙红文天津理工大学环境科学与安全工程学院天津300384 农业农村部环境保护科研监测所天津300191 南开大学环境科学与工程学院天津300350 天津市农业科学院天津300384 天津亚派绿肥生物科技发展有限公司天津301600

盐碱地作为21世纪严重威胁粮食产量的农田问题土壤之一,分布广泛,具有极大的开发潜力.生物炭作为高效的新型土壤改良剂,在缓解土壤酸碱障碍、土壤污染治理、碳封存和肥料缓释等方面发挥了重要作用,有力地推动了盐碱地农业的可持续发展.... 详细信息

盐碱地作为21世纪严重威胁粮食产量的农田问题土壤之一,分布广泛,具有极大的开发潜力.生物炭作为高效的新型土壤改良剂,在缓解土壤酸碱障碍、土壤污染治理、碳封存和肥料缓释等方面发挥了重要作用,有力地推动了盐碱地农业的可持续发展.近年来,关于生物炭改良盐碱地的研究和应用备受关注.但由于生物炭来源、结构和组分的复杂性和非均质性,其对盐碱地的改良效果存在极大的不确定,也缺乏关键机制的系统总结和深度探讨,这限制了生物炭技术在盐碱地改良中的进一步推广和应用.通过综合分析生物炭对盐碱地土壤理化性质、养分有效性和生物特征的影响,归纳总结生物炭和改性生物炭对盐碱地的改良效果及其提质增效作用,阐明生物炭在盐碱地改良中存在的可能机制,并对未来研究方向进行了展望,可为进一步研发绿色高效精准的盐碱地生物炭改良技术及其推广应用提供参考.

关键词：盐碱地生物炭改性理化性质养分

CdTe/CdSe-sensitized photocathode coupling with Ni-substituted polyoxometalate catalyst for photoelectrochemical generation of hydrogen

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Nano Research 2022年第2期15卷 1347-1354页

作者： Junhao Zhang Mo Zhang Yuanyuan Dong Congcong Bai Yeqin Feng le jiao Hongjin Lv MOE Key Laboratory of Cluster Science School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 102488China

In terms of photoelectrochemical(PEC)hydrogen evolution,substantial challenge still remains regarding the controllable fabrication of quantum dots(QDs)-sensitized photocathodes with enhanced visible-light absorption,efficient charge carrier separation,and directional migration at the electrode *** this work,the CdTe/CdSe QDs-sensitized photocathodes were delicately constructed on p-type NiO-coated indium tin oxide(ITO)electrodes by spin-coating *** resulting co-sensitized photocathode exhibits a favorable pseudo-Type Ⅱ energetic band alignment that combines the advantages of strong light absorption of constituent QDs as well as the effective and oriented charge separation and *** green leD light illumination,the photogenerated electrons could be effectively transferred to a tetra-nickel-substituted polyoxometalate catalyst for hydrogen production while photogenerated holes will be scavenged at the NiO/ITO *** minimally optimized conditions,the pseudo-Type Ⅱ CdTe/CdSe-sensrtized photocathode yields a photcx:urrent density of over 100 pA/cm^(2) and a Faradaic efficiency of〜100%,which is among one of the most efficient QDs-based photocathode systems coupling with Ni-substituted polyoxometalate catalyst for photoelectrochemical hydrogen generation.

关键词： polyoxometalates quantum dots-sensitized photocathode favorable energetic gradient photoelectrochemical water splitting hydrogen generation

Incorporation of N-doped biochar into zero-valent iron for efficient reductive degradation of neonicotinoids:mechanism and performance

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Biochar 2023年第1期5卷 1343-1359页

作者： Xiangying Li Xiangyu Zhang Peng Zhang Xinhua Wang Hongwen Sun Yongyue Lu le jiao Chenglan Liu National Key Laboratory of Green Pesticide South China Agricultural University483#Wushan RoadTianhe DistrictGuangzhou 510642China MOE Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai University38#Tongyan RoadHaihe Education ParkJinnan DistrictTianjin 300350China Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs31#Fukang RoadNankai DistrictTianjin 300191China

The extensive use of neonicotinoids on food crops for pest management has resulted in substantial environmental *** is imperative to develop an effective remediation material and technique as well as to determine the evolution pathways of ***,novel ball-milled nitrogen-doped biochar(NBC)-modified zero-valent iron(ZVI)composites(named MNBC-ZVI)were fabricated and applied to degrading *** on the characterization results,NBC incorporation introduced N-doped sites and new allying heterojunctions and achieved surface charge redistribution,rapid electron transfer,and higher hydrophobicity of ZVI *** a result,the interaction between ZVI particles and thiamethoxam(a typical neonicotinoid)was improved,and the adsorption-desorption and reductive degradation of thiamethoxam and·H generation steps were ***-ZVI could rapidly degrade 100%of 10 mg·L^(−1) thiamethoxam within 360 min,its reduction rate constant was 12.1-fold greater than that of pristine ZVI,and the electron efficiency increased from 29.7%to 57.8%.This improved reactivity and selectivity resulted from increased electron transfer,enhanced hydrophobicity,and reduced accumulation of iron ***,the degradation of neonicotinoids occurred mainly via nitrate reduction and dichlorination,and toxicity tests with degradation intermediates revealed that neonicotinoids undergo rapid ***,MNBCZVI also presented favorable tolerance to various anions,humic acid,wastewater and contaminated soil,as well as high *** work offers an efficient and economic biochar-ZVI remediation technology for the rapid degradation and detoxification of neonicotinoids,significantly contributes to knowledge on the relevant removal mechanism and further advances the synthesis of highly reactive and environmentally friendly materials.

关键词： Zero-valent iron(ZVI) Ball milling N-doped biochar Neonicotinoid degradation Electron efficiency

Study on the green extraction of corncob xylan by deep eutectic solvent

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Grain & Oil Science and Technology 2024年第1期7卷 50-59页

作者： Bingyu jiao le Wang Haitao Gui Zifu Ni Rong Du Yuansen Hu School of Biological Engineering National Engineering Research Center of Wheat and Corn Further ProcessingZhengzhou 450001China

Corn as one of the world's major food crops,its by-product corn cob is also rich in ***,the unreasonable utilization of corn cob often causes the environmental pollution,waste of resources and other *** one of the most abundant polymers in nature,xylan is widely used in food,medicine,materials and other *** cob is rich in xylan,which is an ideal raw material for extracting ***,the intractable lignin is covalently linked to xylan,which increases the difficulty of xylan *** has been reported that the deep eutectic solvent(DES)could preferentially dissolve lignin in biomass,thereby dissolving the ***,the xylan in the extract was separated by ethanol precipitation *** xylan precipitate was obtained after centrifugation,while the supernatant was *** components of the supernatant after ethanol precipitation were separated by the rotary *** ethanol,water and DES were collected for the subsequent extraction of corn cob *** this study,a novel way was provided for the green production of corn cob *** DES was used to extract xylan from corn cob which was used as the raw *** effects of solid-liquid ratio,reaction time,reaction temperature and water content of DES on the extraction rate of corn cob xylan were investigated by the single factor ***,the orthogonal test was designed to optimize the xylan extraction *** structure of corn cob xylan was analyzed and *** results showed that the optimum extraction conditions of corn cob xylan were as follows:the ratio of corn cob to DES was 1:15(g:mL),the extraction time was 3 h,the extraction temperature was 60℃,and the water content of DES was 70%.Under these conditions,the extraction rate of xylan was 16.46%.The extracted corn cob xylan was distinctive triple helix of polysaccharide,which was similar to the structure of commercially available *** was effectively and workably extracted from corn

关键词： Corncob Deep eutectic solvent Xylan Process optimization Extraction

Honeycomb-like MoCo alloy on 3D nitrogen-doped porous graphene for efficient hydrogen evolution reaction

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Rare Metals 2024年第3期43卷 1072-1082页

作者： Lin-Ping Wang Kuang Li Hua-Long Ding le Xu Chen Huang jiao-jiao Zhou Cong-TaoWen Pei-Lin Zhang Wei-Wei Wang Lu-Yang Chen Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai200050China State Key Laboratory of Chemical Engineering and School of Chemistry and Molecular Engineering East China University of Science and TechnologyShanghai200237China

An efficient electrocatalyst is indispensable to significantly reduce energy consumption and accelerate the conversion efficiency of water *** this work,the honeycomb-like porous MoCo alloy on nitrogen-doped three-dimensional(3D)porous graphene substrate(Mo_(0.3)Co_(0.7)@NPG)has been synthesized from the annealing of layered double hydroxide(MoCo-LDH@NPG).Especially,the Mo_(0.3)Co_(0.7)@NPG exhibits low hydrogen evolution overpotential of 75 mV(10 mA·cm^(-2))and a Tafel slope of 69.9 mV·dec^(-1),which can be attributed to highly conductive NPG substrate,the unique nanostructure and the synergistic effect of Mo and ***,the Mo_(0.3)Co_(0.7)@NPG can maintain the original morphology and high catalytic activity after 50-h stability *** work proposes a general strategy to synthesize a multi-element alloy on conductive substrates with high porosity for electrocatalytic reaction.

关键词： MoCo alloy Three-dimensional nitrogen-doped porous graphene Hydrogen evolution reaction(HER)

Electrodeposition of rare refractory metals in low-temperature ionic liquids

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Rare Metals 2024年第10期43卷 4921-4933页

作者： Lin-Lin Wang Han-Dong jiao Rui Yuan le-Yang Li Man-Peng Lin Rui-Yang Sun Jiu-San Xiao Shu-Qiang jiao Institute of Advanced Structure Technology Beijing Institute of Technology State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing

Rare refractory metals(RRMs) play a significant role in fundamental industries, including electronics,chemical industry, machinery, etc., and future advanced fields, such as aerospace and superconductivity. However,the traditional production processes of RRMs based on high-temperature thermal reduction cannot meet the requirements of low-energy consumption. This dilemma could be addressed efficiently by using a low-temperature electrodeposition strategy in ionic liquids(ILs). This review summarizes a panoramic view of the latest developments on the electrodeposition of RRMs in ILs after a brief review on the current industrial production methods of RRMs. Based on this, the electrochemical mechanism occurring at the cathode during the electrodeposition process of RRMs in different electrolytes and under different conditions is thoroughly discussed, because it is crucial for the successful production of pure RRMs. In addition, this review not only analyses the main challenges that hinder the industrial application of the electrodeposition of RRMs in ILs, but also proposes corresponding solutions. We hope this review can provide a valuable guidance for the fundamental research and industrial development of lowtemperature electrodeposition of RRMs.

关键词： Chemical industry

Effects of the Pituitary-targeted Gland Axes on Hepatic Lipid Homeostasis in Endocrine-associated Fatty Liver Disease-A Concept Worth Revisiting

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Journal of Clinical and Translational Hepatology 2024年第4期12卷 416-427页

作者： Yifang Li Meina Zheng Steven Limbara Shanshan Zhang Yutao Yu le Yu Jian jiao Department of Gastroenterology&Hepatology China-Japan Union HospitalJilin UniversityChangchunJilinChina

Hepatic lipid homeostasis is not only essential for maintain-ing normal cellular and systemic metabolic function but is also closely related to the steatosis of the *** contro-versy over the nomenclature of non-alcoholic fatty liver dis-ease(NAFLD)in the past three years has once again sparked in-depth discussions on the pathogenesis of this disease and its impact on systemic ***-targeted gland axes(PTGA),an important hormone-regulating system,are indispensable in lipid *** review focuses on the roles of thyroid hormones,adrenal hormones,sex hor-mones,and their receptors in hepatic lipid homeostasis,and summarizes recent research on pituitary target gland axes-related drugs regulating hepatic lipid *** also calls on researchers and clinicians to recognize the concept of endocrine-associated fatty liver disease(EAFLD)and to re-examine human lipid metabolism from the macroscopic perspective of homeostatic balance.

关键词： Lipid homeostasis Metabolism Pituitary-target gland axes(PTGA) Endocrine-associated fatty liver disease(EAFLD)

m4C DNA methylation regulates biosynthesis of daptomycin in Streptomyces roseosporus L30

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Synthetic and Systems Biotechnology 2022年第4期7卷 1013-1023页

作者： jiao-le Fang Wen-Li Gao Wei-Feng Xu Zhong-Yuan Lyu Lie Ma Shuai Luo Xin-Ai Chen Xu-Ming Mao Yong-Quan Li Institute of Pharmaceutical Biotechnology Zhejiang University School of MedicineHangzhou310058PR China Zhejiang Provincial Key Laboratory for Microbial Biochemistry and Metabolic Engineering 310058HangzhouPR China

Despite numerous studies on transcriptional level regulation by single genes in drug producing Actinomyces,the global regulation based on epigenetic modification is not well explored.N4-methylcytosine(m4C),an abundant epigenetic marker in Actinomycetes’genome,but its regulatory mechanism remains *** this study,we identify a m4C methyltransferase(SroLm3)in Streptomyces roseosporus L30 and multi-omics studies were performed and revealed SroLm3 as a global regulator of secondary ***,three BGCs inΔsroLm3 strain exhibited decreased expression compared to wild ***-frame deletion of sroLm3 in *** L30 further revealed its role in enhancing daptomycin *** summary,we characterized a m4C methyltransferase,revealed the function of m4C in secondary metabolism regulation and biosynthesis of red pigment,and mapped a series of novel regulators for daptomycin biosynthesis dominated by m4C *** research further indicated that m4C DNA methylation may contribute to a metabolic switch from primary to secondary metabolism in Actinomyces.

关键词： N4-methylcytosine DNA methyltransferase Daptomycin Transcriptional regulator Secondary metabolism

AngioJet血栓抽吸治疗急重症肺血栓栓塞症的疗效分析

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中国血管外科杂志（电子版） 2024年第1期16卷 68-72页

作者：张建陶高红霞田宇刘佳豪焦乐续慧民郝斌杨涛山西白求恩医院山西医学科学院同济山西医院山西医科大学第三医院血管外科山西太原030032

目的评价AngioJet血栓抽吸治疗急性重症肺栓塞的疗效和安全性。方法前瞻性收集2019年1月至2021年6月在山西白求恩医院诊断为急性重症肺栓塞的60例患者,随机分为血栓抽吸组及导管溶栓组各30例,其中血栓抽吸组采用AngioJet血栓抽吸+抗凝治... 详细信息

目的评价AngioJet血栓抽吸治疗急性重症肺栓塞的疗效和安全性。方法前瞻性收集2019年1月至2021年6月在山西白求恩医院诊断为急性重症肺栓塞的60例患者,随机分为血栓抽吸组及导管溶栓组各30例,其中血栓抽吸组采用AngioJet血栓抽吸+抗凝治疗,导管溶栓组行导管溶栓+抗凝治疗,比较两组术后情况以及随访1年内的氧分压及肺动脉压。结果手术均取得成功。血栓抽吸组患者术后的肺动脉压、动脉血氧分压及血氧饱和度和术前相比差异有统计学意义(P0.05)。两组患者在术后1、3、6、12个月的肺动脉压及动脉血氧分压的差异均无统计学意义(P>0.05)。血栓抽吸组5例患者出现血尿,对症处理后消失。患者均未出现肾功能不全、高钾血症及严重出血等并发症,随访期间无血栓复发或死亡病例。结论AngioJet血栓抽吸安全有效,能明显改善患者的肺动脉压、血氧分压及血氧饱和度,但远期疗效与导管溶栓相比相差不大。

关键词：肺栓塞导管接触溶栓经皮机械性血栓清除