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Efficient and selective H_(2)O_(2)production through uranyl-assisted photocatalytic oxygen reduction reaction process in a uranium-organic framework

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Science China Chemistry 2024年第7期67卷 2274-2281页

作者： Jianxin Song Chao Liang Baoyu Li Xuemin Wang Min Lei Lisha Jiang Zhenyu Li Yugang Zhang Jian Xie Zuju Ma Xing Dai Yanlong Wang Shuao Wang Wei Liu School of Environmental and Materials engineering Yantai UniversityYantai 264005China State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversitySuzhou 215123China School of Life and Environmental Sciences Shaoxing UniversityShaoxing 312000China School of Nuclear Science and Technology Xi’an Jiaotong UniversityXi’an 710049China

Harnessing solar energy by photocatalytically converting oxygen and water into high-value-added H_(2)O_(2)is a promising way of alleviating both environmental and energy *** is worth noting that suppressing detrimental side reactions,such as the generation of·O_(2)^(-),is a critical approach to enhancing H_(2)O_(2)***,a 2-fold interpenetrating 3D uranium-organic framework(YTU-W-1)was developed and introduced for photocatalytic H_(2)O_(2)*** material demonstrates a different photocatalytic mechanism when employing uranyl as an initiator,as compared with the conventional semiconductor photocatalytic pathway involving photo-generated charge *** from the strong hydrogen abstraction effect of the U≡O·and the direct one-step oxygen reduction pathway,YTU-W-1 exhibits enhanced photocatalytic performance for H_(2)O_(2)production with yield efficiency of 221μmol h^(-1)g^(-1).Furthermore,YTU-W-1 displays a high H_(2)O_(2)selectivity of 68%,confirmed by rotating ring-disk electrode(RRDE)*** were used to elucidate the critical role of uranyl in the photocatalytic oxygen reduction reaction for H_(2)O_(2)*** research introduces an innovative approach to photo-driven H_(2)O_(2)production,underscoring the potential for heterogeneous catalysts to engage in photocatalytic reactions independently of photogenerated charge carriers.

关键词： uranyl metal-organic frameworks oxygen reduction reaction photocatalytic H_(2)O_(2)synthesis

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碳中和背景下基于g-C_(3)N_(4)光催化CO_(2)还原的研究进展与挑战

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Science China Materials 2024年第6期67卷 1740-1764页

作者：展海银周睿人刘可望马志辉王鹏飞展思辉周启星 Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria Carbon Neutrality Interdisciplinary Science Centre/College of Environmental Science and EngineeringNankai UniversityTianjin 300350China Department of Biological and Agricultural engineering Texas A&M University126 Hobgood2117 TAMUCollege StationTX 77843-2117USA

全球变暖对人类的生产生活造成了严重的威胁,已成为当今世界面临的重大挑战之一.碳中和这一重要举措能够有效缓解全球变暖的进程,在这一背景下光催化CO_(2)还原可有效减少碳排放且促进碳循环.g-C_(3)N_(4)因其制备工艺简单、稳定性高、... 详细信息

全球变暖对人类的生产生活造成了严重的威胁,已成为当今世界面临的重大挑战之一.碳中和这一重要举措能够有效缓解全球变暖的进程,在这一背景下光催化CO_(2)还原可有效减少碳排放且促进碳循环.g-C_(3)N_(4)因其制备工艺简单、稳定性高、能带位置适宜以及优异的光催化性能而备受关注.因此,提高g-C_(3)N_(4)光催化CO_(2)还原效率是当前研究的热点问题.本文重点探究了碳中和对于全球生态平衡和环境可持续发展的重要性以及在碳中和背景下g-C_(3)N_(4)光催化CO_(2)还原的重要作用和发展前景;综述了目前解决限制g-C_(3)N_(4)光催化CO_(2)还原瓶颈问题的方法和技术手段.对g-C_(3)N_(4)在光催化CO_(2)还原领域存在的问题进行讨论,提出了未来的研究方向,并进行展望.本综述旨在为碳中和背景下基于g-C_(3)N_(4)催化剂光催化CO_(2)还原的应用提供理论支持,为基于g-C_(3)N_(4)高效CO_(2)还原光催化剂的设计提供思路.

关键词： carbon neutral photocatalysis CO_(2)reduction gra-phitic carbon nitride modification strategy

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Angiosperm-wide analysis of fruit and ovary evolution aided by a new nuclear phylogeny supports association of the same ovary type with both dry and fleshy fruits

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Journal of Integrative Plant Biology 2024年第2期66卷 228-251页

作者： Yezi Xiang Taikui Zhang Yiyong Zhao Hongjin Dong Hongyi Chen Yi Hu Chien-Hsun Huang Jun Xiang Hong Ma State Key Laboratory of genetic engineering Ministry of Education Key Laboratory of Biodiversity and Ecological EngineeringInstitute of Plant BiologyCenter of Evolutionary BiologySchool of Life SciencesFudan UniversityShanghai 200438China Department of Biology Howard Hughes Medical InstituteDuke UniversityDurhamNC 27708USA Department of Biology the Eberly College of Scienceand the Huck Institutes of the Life Sciencesthe Pennsylvania State UniversityUniversity ParkPA 16802USA Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization College of Biology and Agricultural ResourcesHuanggang Normal UniversityHuanggang 438000China

Fruit functions in seed protection and dispersal and belongs to many dry and fleshy types,yet their evolutionary pattern remains unclear in part due to uncertainties in the phylogenetic relationships among several orders and *** we used nuclear genes of 502 angiosperm species representing 231 families to reconstruct a well supported phylogeny,with resolved relationships for orders and families with previously uncertain *** this phylogeny as a framework,molecular dating supports a Triassic origin of the crown angiosperms,followed by the emergence of most orders in the Jurassic and Cretaceous and their rise to ecological dominance during the Cretaceous Terrestrial *** robust phylogeny allowed an examination of the evolutionary pattern of fruit and ovary types,revealing a trend of parallel carpel fusions during early diversifications in eudicots,monocots,and ***,taxa in the same order or family with the same ovary type can develop either dry or fleshy fruits with strong correlations between specific types of dry and fleshy fruits;such associations of ovary,dry and fleshy fruits define several ovaryfruit"modules"each found in multiple *** of the frequent modules has an ovary containing multiple ovules,capsules and berries,and another with an ovary having one or two ovules,achenes(or other single-seeded dry fruits)and *** new perspective of relationships among fruit types highlights the closeness of specific dry and fleshy fruit types,such as capsule and berry,that develop from the same ovary type and belong to the same module relative to dry and fleshy fruits of other modules(such as achenes and drupes).Further analyses of gene families containing known genes for ovary and fruit development identified phylogenetic nodes with multiple gene duplications,supporting a possible role of whole-genome duplications,in combination with climate changes and animal behaviors,in angiosperm fruit and ovary diversificat

关键词： angiosperm fruit evolution MADS-box molecular clock nuclear phylogeny ovary and fruit developmental genes

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Searching for plant NLR immune receptors conferring resistance to potyviruses

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The Crop Journal 2024年第1期12卷 28-44页

作者： Xin Hong Shufen Li Xiaofei Cheng Haijian Zhi Jinlong Yin Kai Xu Jiangsu Key Laboratory for Microbes and Functional Genomics Jiangsu Engineering and Technology Research Center for MicrobiologyCollege of Life SciencesNanjing Normal UniversityNanjing 210023JiangsuChina College of Plant Protection Northeast Agricultural UniversityHarbin 150030HeilongjiangChina National Center for Soybean Improvement National Key Laboratory for Crop Genetics and Germplasm EnhancementKey Laboratory of Biology and Genetic Improvement of Soybean-Ministry of AgricultureNanjing Agricultural UniversityNanjing 210095JiangsuChina

To fight against invasion by pathogens,plants have evolved an elaborate innate immune system,of which the nucleotide-binding domain leucine-rich repeat-containing receptor(NLR)acts as the sensor and immune ***,comprising one of the largest genera of plant viruses,cause severe crop yield losses *** crop resistance to potyviruses can be used in breeding and plant transgenesis to control disease *** review summarizes achievements in mapping and cloning NLR genes conferring dominant resistance against potyvirus in the families Fabaceae,Solanaceae,Brassicaceae,and *** compares mechanisms of potyviral protein recognition and downstream signaling employed by NLRs and discusses strategies for exploiting NLRs to better control diseases caused by potyviruses.

关键词： NLR Potyvirus resistance genetic diversity Mapping Engineer

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OsPPG encodes a pseudouridine-5'-phosphate glycosidase and regulates rice spikelet development

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The Crop Journal 2024年第3期12卷 698-708页

作者： Rui Chen Dagang Tian Yarong Lin Jiaqing Huang Qinqin Yang Yupei Li Huaqing Liu Shaohua Yang Jingyang Chen Shufen Zhou Feng Wang Shubiao Zhang Key Laboratory of genetics Breeding and Multiple Utilization of CropsMinistry of Education/Key Laboratory of Biological Breeding for Fujian and Taiwan CropsMinistry of Agriculture and Rural AffairsFujian Agriculture and Forestry UniversityFuzhou 350002FujianChina Fujian Key Laboratory of genetic engineering for Agriculture Biotechnology Research InstituteFujian Academy of Agricultural SciencesFuzhou 350003FujianChina Institute of Resources Environment and Soil FertilizerFujian Academy of Agricultural SciencesFuzhou 350013FujianChina

Florets are the basic structural units of spikelets,and their morphogenesis determines the yield and quality of rice ***,whether and how pseudouridine-5’-phosphate glycosidase participates in rice spikelet development remains an open *** this study,we identified a novel gene,OsPPG,which encodes a peroxisome-localized pseudouridine-5’-phosphate glycosidase and regulates the development of rice *** mutants exhibited abnormal sterile lemma,lemma,palea,lodicule,stamens,and pistils;male sterility;shorter panicles;and reduced plant *** was found to regulate several OsMADS genes,thereby affecting the morphogenesis of rice ***,metabolomics revealed that the OsPPG gene was involved in the decomposition of pseudouridine via the pyrimidine metabolism pathway and may affect the jasmonic acid signaling *** results suggest that OsPPG is a key regulator of rice spikelet development.

关键词： OsPPG Reproductive regulation Spikelet development Rice

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Designing ABC-6 family small pore zeolites by epitaxial growth approach

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Chinese Chemical Letters 2024年第3期35卷 508-512页

作者： Xiaohui Cui Jia Lv Chao Ma Yujiao Wang Zhenghao Jia Daliang Zhang Peng Guo Zhongmin Liu Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450001China National engineering Research Center of Lower-Carbon Catalysis Technology Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Multi-scale Porous Materials Center Institute of Advanced Interdisciplinary Studies&School of Chemistry EngineeringChongqing UniversityChongqing 400044China University of Chinese Academy of Sciences Beijing 100049China Division of Energy Research Resources Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Aluminosilicate small pore zeolites belonging to ABC-6 family play crucially important roles in the high methanol conversion with the high selectivity of light olefins,gas separation and storage,and selective catalytic reduction of NO_(x).In this work,we report a general method,called the epitaxial growth approach,for designing ABC-6 family small pore *** is mainly realized through the epitaxial growth on the nonporous SOD-type zeolite in the presence of inorganic cations(Na^(+)and K^(+))combined with a variety of organic structure directing agents(OSDAs).In this case,a series of ABC-6 family small pore zeolites such as ERI-,SWY-,LEV-,AFX-,and PTT-type zeolites have been successfully synthesized within a few *** importantly,the advanced focused ion beam(FIB)and the low-dose high-resolution transmission electron microscopy(HRTEM)imaging technique have been utilized for unraveling the zeolite heterojunction at the atomic level during the epitaxial growth *** turns out(222)crystallographic planes of the SOD-type zeolite substrate provide unique pre-building units,which facilitate the growth of targeted ABC-6 family small pore zeolites along its ***,the morphologies of ERI-type zeolite can also be tuned through the epitaxial growth approach,achieving a longer lifetime in the methanol conversion.

关键词： Zeolite structure Zeolite synthesis Structural characterizations Low-dose imaging Focused ion beam

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Highly efficient pH-universal hydrogen evolution reaction catalyzed by rapidly reconstructed bimetallic cobalt-molybdenum alloy cuboids arrays

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Nano Research 2024年第8期17卷 6977-6983页

作者： Daolian Liu Zihao Wang Yan Zhang Haiqing Zhou Yong Zhang Dongyang Li Fang Yu Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China State Key Laboratory of Marine Resource Utilization in South China Sea and Department of Materials Science and EngineeringHainan UniversityHaikou 570228China Institute of interdisciplinary Studies Hunan Normal UniversityChangsha 410081China

Given the inherent potential of seawater,industrial wastewater,and residential water as inherent feedstocks for hydrogen production through water electrolysis,there is a critical demand for the exploration of robust and stable hydrogen-evolving catalysts that can operate effectively across a diverse range of pH ***,the pursuit of hydrogen-evolving electrocatalysts that demonstrate both good stability and high efficiency over a wide pH range remains a formidable *** we report the rational design and synthesis of an outstanding nanoporous hybrid electrocatalyst consisting of intermetallic cobalt-molybdenum alloy particles anchoring on MoO2 cuboid arrays,which demands very low overpotentials of 72,123 and 134 mV to deliver a current density of−100 mA·cm^(−2)for hydrogen evolution reaction under alkaline,neutral and acidic conditions,*** catalytic activities are superior to most non-precious-metal-based catalysts documented in the literatures,and are even comparable to noble metal *** particular,this alloy electrocatalyst exhibits excellent stability at 50 or 300 mA·cm^(−2)without obvious activity degradation,which is further supported by the undetectable changes in the surface chemical valence states on the basis of in-situ X-ray photoelectron spectroscopic *** study provides an innovative strategy for the design and synthesis of effective non-noble intermetallic catalysts for pH-universal hydrogen evolution over a wide pH range.

关键词： electrocatalyst hydrogen evolution reaction pH-universal non-noble water splitting

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Machine Learning for Signal Demodulation in Underwater Wireless Optical Communications

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China Communications 2024年第5期21卷 297-313页

作者： Ma Shuai Yang Lei Ding Wanying Li Hang Zhang Zhongdan Xu Jing Li Zongyan Xu Gang Li Shiyin Department of Strategic and Advanced interdisciplinary Research Peng Cheng LaboratoryShenzhen 518055China School of Information and Control engineering China University of Mining and TechnologyXuzhou 221116China Data-driven Intelligent Information System Laboratory Shenzhen Research Institute of Big DataShenzhen 518172China Ocean College Zhejiang UniversityZhoushan 316021China State Key Laboratory of Millimeter Waves Southeast UniversityNanjing 210096China

The underwater wireless optical communication(UWOC)system has gradually become essential to underwater wireless communication *** other existing works on UWOC systems,this paper evaluates the proposed machine learningbased signal demodulation methods through the selfbuilt experimental *** on such a platform,we first construct a real signal dataset with ten modulation ***,we propose a deep belief network(DBN)-based demodulator for feature extraction and multi-class feature *** also design an adaptive boosting(Ada Boost)demodulator as an alternative scheme without feature filtering for multiple modulated ***,it is demonstrated by extensive experimental results that the Ada Boost demodulator significantly outperforms the other *** also reveals that the demodulator accuracy decreases as the modulation order increases for a fixed received optical power.A higher-order modulation may achieve a higher effective transmission rate when the signal-to-noise ratio(SNR)is higher.

关键词： AdaBoost DBN machine learning signal demodulation

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Robust neutralization of SARS-CoV-2 variants including JN.1 and BA.2.87.1 by trivalent XBB vaccine-induced antibodies

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2359-2361页

作者： Xun Wang Shujun Jiang Wentai Ma Yanliang Zhang Pengfei Wang Shanghai Pudong Hospital Fudan University Pudong Medical CenterState Key Laboratory of Genetic EngineeringMOE Engineering Research Center of Gene TechnologySchool of Life SciencesShanghai Institute of Infectious Disease and BiosecurityFudan UniversityShanghaiChina Department of Infectious Diseases Nanjing Hospital of Chinese Medicine Affiliated to Nanjing University of Chinese MedicineNanjing Research Center for Infectious Diseases of Integrated Traditional Chinese and Western MedicineNanjingJiangsuChina Beijing Institute of Genomics Chinese Academy of SciencesUniversity of Chinese Academy of Sciences and China National Center for BioinformationBeijingChina

Dear Editor,The rapid and widespread transmission of SARS-CoV-2 has led to the emergence of multiple variants of concern(VOCs),most notably the Omicron variant,which continues to evolve and diversify into a range of *** previous research has shown that these Omicron sub-lineages,spanning BA.1-BA.2.86,have been evolving to exhibit increased neutralization escape capabilities.

关键词： evolve neutralization variants

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Twistronics and moiréexcitonic physics in van der Waals heterostructures

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Frontiers of physics 2024年第4期19卷 147-185页

作者：李思维韦可刘祺瑞唐宇翔江天 College of Advanced interdisciplinary Studies National University of Defense TechnologyChangsha 410073China Institute for Quantum Science and Technology National University of Defense TechnologyChangsha 410073China

Heterostructures composed of two-dimensional van der Waals(vdW)materials allow highly controllable stacking,where interlayer twist angles introduce a continuous degree of freedom to alter the electronic band structures and excitonic *** by the discovery of Mott insulating states and superconductivity in magic-angle bilayer graphene,the emerging research fields of“twistronics”and moiréphysics have aroused great academic interests in the engineering of optoelectronic properties and the exploration of new quantum phenomena,in which moirésuperlattice provides a pathway for the realization of artificial excitonic *** we systematically summarize the current achievements in twistronics and moiréexcitonic physics,with emphasis on the roles of lattice rotational mismatches and atomic ***,we review the effects of the interlayer twist on electronic and photonic physics,particularly on exciton properties such as dipole moment and spin-valley polarization,through interlayer interactions and electronic band *** also discuss the exciton dynamics in vdW heterostructures with different twist angles,like formation,transport and relaxation processes,whose mechanisms are complicated and still need further ***,we review the theoretical analysis and experimental observations of moirésuperlattice and moirémodulated *** exotic moiréeffects are also shown,including periodic potential,moiréminiband,and varying wave function symmetry,which result in exciton localization,emergent exciton peaks and spatially alternating optical selection *** further introduce the expanded properties of moirésystems with external modulation factors such as electric field,doping and strain,showing that moirélattice is a promising platform with high tunability for optoelectronic applications and in-depth study on frontier ***,we focus on the rapidly developing field of correlated electron physics based on the moiré

关键词： moirésuperlattice twistronics van der Waals heterostructure moiréexciton correlated electronic state

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