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Recent progress of MgO-based materials in CO_(2) adsorption and conversion:Modification methods,reaction condition,and CO_(2) hydrogenation

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Chinese Chemical Letters 2024年第5期35卷 57-65页

作者： Zixuan Zhu Xianjin Shi yongfang rao Yu Huang Key Laboratory of Aerosol Chemistry&Physics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of Sciences(CAS)Xi’an 710061China Center for Excellence in Quaternary Science and Global Change Chinese Academy of SciencesXi’an 710061China University of Chinese Academy of Sciences Beijing 100049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

Integrated CO_(2) capture and conversion of(ICCC)is one of the most effective solutions to reduce anthropogenic CO_(2) emissions,which has attracted extensive public *** functional materials(DFMs),including adsorbent and catalyst,are the key components to achieve *** oxide(MgO)is an ideal adsorbent for ICCC,since it is characterized by high theoretical adsorption capacity,low cost,low energy consumption and extensive *** can also be used as DFMs in combination with the Ni *** not only can act as an adsorbent in DFMs but also enhance the catalytic performance of *** review summarizes the advantages and modification methods of MgO as adsorbent and the influence of its adsorption conditions on the adsorption ***,the important role of MgO in facilitating the catalytic conversion of CO_(2) is *** research focuses are proposed for the development of MgO based DFMs with high adsorption capacity,high stability,conversion,and selectivity as well as low cost and energy consumption.

关键词： CO_(2) ICCC MgO Adsorption Conversion

A short review on recent progress of Bi/semiconductor photocatalysts:The role of Bi metal

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Chinese Chemical Letters 2020年第10期31卷 2583-2590页

作者： Qian Chen Xuanrui Cheng Huimin Long yongfang rao Department of Environmental Science and Engineering Xi'an Jiaotong UniversityXi'an 710049China

Bi/semiconductor photocatalysts have extensively been applied in the production of hydrogen,CO_(2) reduction and environmental remediation in recent *** short review summarizes the role of Bi metal as a plasma photocatalyst and *** a cocatalyst,Bi metal can be electron/hole trappers,charge transfer mediators,or oxygen vacancy *** addition,the preparation methods of the Bi/semiconductor photocatalysts are also *** and future research directions related to Bi/semiconductor photocatalysts are discussed and summarized,including the use of advanced characterization techniques to refine the reaction mechanism,the difficulties of preparing Bi single atom catalyst,and the improvement of the reduction ability of Bi-based *** review helps understand the reaction mechanisms of the composite photocatalytic systems containing Bi metal and proposes new perspectives for designing the photocatalysts which can control air pollution via a reductive process.

关键词： Bi metal Plasma photocatalyst Cocatalyst Electron/hole trappers Charge transfer medium

The new challenges for the development of NH_(3)-SCR catalysts under new situation of energy transition in power generation industry

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Chinese Chemical Letters 2024年第6期35卷 95-103页

作者： Feibin Wei yongfang rao Yu Huang Wei Wang Hui Mei Science and Technology on Thermostructural Composite Materials Laboratory School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Aerosol Chemistry and Physics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China Center of Excellence in Quaternary Science and Global Change Chinese Academy of SciencesXi’an 710061China University of Chinese Academy of Sciences Beijing 100049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China

NH_(3)-SCR was one of the most promising de NO_x technologies and it has been widely applied in industrial NO_x ***,with the further development of energy transformation in power generation sector,the development of NH_(3)-SCR catalysts is facing some new *** is becoming an urgent problem to solve low catalytic activity and stability of NH_(3)-SCR catalysts at the working condition of ultra-low temperature(≤200℃)and high concentrations of H_(2)O+SO_(2) due to the gradual deployment of new energy power ***,the traditional coal-fired power plants would need flexible operation with the increasing share of renewable energy *** NH_(3)-SCR catalysts which were applied in coal-fired power industry would be requested to work in a wide temperature window from 200℃ to 500℃ in the near ***,in this review,we summarized the progress of NH_(3)-SCR catalysts in solving these different industrial problems in recent *** the research directions which were deserved to be focused on the development of NH_(3)-SCR catalysts for the energy transition of power generation sector are proposed.

关键词： NH_(3)-SCR NOx reduction Power generation Ultra-low temperature Wide temperature windows

Regulating the electronic structure of Ir single atoms by ZrO_(2)nanoparticles for enhanced catalytic oxidation of formaldehyde at room temperature

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Chinese Chemical Letters 2024年第7期35卷 200-205页

作者： Shiqi Peng yongfang rao Tan Li Yufei Zhang Jun-ji Cao Shuncheng Lee Yu Huang Key Laboratory of Aerosol Chemistry&Physics State Key Laboratory of Loess and Quaternary Geology(SKLLQG)Institute of Earth EnvironmentChinese Academy of Sciences(CAS)Xi’an 710061China School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’an 710049China Department of Environmental Science and Engineering Xi’an Jiaotong UniversityXi’an 710049China Faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China School of Environment and Energy South China University of TechnologyGuangzhou 51006China School of Environmental and Municipal Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100190China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongChina CAS Center for Excellence in Quaternary Science and Global Change Xi’an 710061China

Developing low-loading single-atom catalysts with superior catalytic activity and selectivity in formaldehyde(HCHO)oxidation at room temperature remains ***,ZrO_(2)nanoparticles coupled low-loading Ir single atoms in N-doped carbon(Ir_(1)-N-C/ZrO_(2))was *** optimal Ir_(1)-N-C/ZrO_(2)with 0.25 wt%Ir loading delivers the high HCHO removal and conversion efficiency(>95%)at 20℃,which is higher than that over Ir_(1)-N-C with the same Ir *** specific rate can reach 1285.6 mmol gIr^(-1)h^(-1),surpassing the Ir based catalysts reported to *** functional theory calculation results and electron spin resonance spectra indicate that the introduction of Zr O_(2)nanoparticles modulate the electronic structure of the Ir single atoms,promoting O_(2)activation to·O_(2)^(–).Moreover,the Ir-C-Zr channel is favorable for the dissociation of·O_(2)^(–)to active oxygen atom(*O),and further accelerates the transformation of HCHO and intermediates(dioxymethylene and formates)to CO_(2)and H_(2)*** work provides a facile strategy to design low-loading single-atom catalysts with high catalytic activity toward HCHO oxidation.

关键词： ZrO_(2)nanoparticles Ir single atoms Electronic structure Formaldehyde Catalytic oxidation

纳米零价铁活化过硫酸盐降解新兴污染物咖啡因

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工业水处理 2022年第1期42卷 100-107页

作者：胡明玥王玉如范家慧李敏睿饶永芳陕西师范大学地理科学与旅游学院陕西西安710119 西安交通大学能源与动力工程学院陕西西安710049

采用液相还原法制备纳米零价铁(nZVI),通过X射线衍射、扫描电镜−能谱、傅里叶红外光谱及X射线光电子能谱对其进行表征。考察了nZVI活化过硫酸盐(PS)降解咖啡因(CAF)的性能。实验结果表明,当PS为5 mmol/L、nZVI投加量为0.2 g/L时,50 mg/L... 详细信息

采用液相还原法制备纳米零价铁(nZVI),通过X射线衍射、扫描电镜−能谱、傅里叶红外光谱及X射线光电子能谱对其进行表征。考察了nZVI活化过硫酸盐(PS)降解咖啡因(CAF)的性能。实验结果表明,当PS为5 mmol/L、nZVI投加量为0.2 g/L时,50 mg/L的CAF可在15 min内降解97.6%;溶液初始pH和腐殖酸(HA)对nZVI/PS体系降解CAF无影响;Cl^(-)、SO_(4)^(2-)、H_(2)PO_(4)-和NO_(3)-对CAF的降解呈抑制效果;自由基抑制实验表明体系中存在·OH与SO_(4)^(•-),且SO_(4)^(•-)占主导,nZVI/PS体系可有效降解多种污染物。

关键词：纳米零价铁过硫酸盐硫酸根自由基咖啡因降解

浓香型白酒酒醅发酵过程中微生物群落结构演替及其与理化指标相关性

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食品科学 2024年第7期45卷 111-118页

作者：曾波饶家权邹永芳文静黄治国邓杰四川轻化工大学酿酒生物技术及应用四川省重点实验室四川宜宾644000 舍得酒业股份有限公司四川射洪629000 中国轻工业酿酒生物技术及智能制造重点实验室四川宜宾644000

为明确浓香型白酒酒醅中微生物群落结构的演替规律及其潜在功能,通过高通量测序技术解析酒醅微生物群落在发酵过程中的动态变化,分析不同发酵节点的微生物群落与理化指标的相关性,并采用PICRUSt分析对酒醅中微生物群落的功能进行预测。... 详细信息

为明确浓香型白酒酒醅中微生物群落结构的演替规律及其潜在功能,通过高通量测序技术解析酒醅微生物群落在发酵过程中的动态变化,分析不同发酵节点的微生物群落与理化指标的相关性,并采用PICRUSt分析对酒醅中微生物群落的功能进行预测。结果表明:厚壁菌门(Firmicutes)、变形菌门(Proteobacteria)、放线菌门(Actinobacteriota)、子囊菌门(Ascomycota)、担子菌门(Basidiomycota)是酒醅中的优势菌门,浓香型酒醅中微生物以乳杆菌属(Lactobacillus)、芽孢杆菌属(Bacillus)、葡萄球菌属(Staphylococcus)、高温放线菌属(Thermoactinomyces)、哈萨克斯坦酵母属(Kazachstania)、威克汉姆酵母属(Wickerhamomyces)、青霉属(Penicillium)、假丝酵母菌属(Candida)、曲霉属(Aspergillus)、季也蒙酵母属(Meyerozyma)和德巴利酵母属(Debaryomyces)为主,Lactobacillus、Kazachstania、Wickerhamomyces占绝对优势;相关性分析表明,还原糖、淀粉含量与8个细菌属呈显著正相关(P<0.05),酸度、水分含量与10个细菌属呈显著负相关(P<0.05),部分真菌与理化指标显著相关;PICRUSt分析表明,不同发酵节点的功能酶相对丰度差异显著,酒醅中的优势微生物参与糖酵解、酸代谢、乙醇合成形成完整的代谢链,说明酒醅微生物群落的演替是不同发酵节点代谢差异的主要原因。本研究分析了酒醅微生物的演替规律及其在发酵过程中参与的代谢,为白酒酿造微生物的代谢机制研究提供一定理论基础。

关键词：浓香型白酒酒醅微生物群落相关性分析

浓香型白酒窖底泥和窖壁泥细菌群落结构差异性分析

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食品科学 2023年第18期44卷 223-230页

作者：曾波邹永芳饶家权王晓平文静黄治国四川轻化工大学酿酒生物技术及应用四川省重点实验室四川宜宾644000 舍得酒业股份有限公司四川射洪629000 中国轻工业酿酒生物技术及智能制造重点实验室四川宜宾644000

为了解浓香型白酒窖底泥和窖壁泥细菌群落与理化因子的差异,分析窖泥的5项理化指标,采用高通量测序技术研究细菌群落结构,并进行相关性分析。结果表明:窖底泥的pH值、过氧化氢酶活性显著高于窖壁泥(P<0.05),窖底泥的铵态氮含量显著低于... 详细信息

为了解浓香型白酒窖底泥和窖壁泥细菌群落与理化因子的差异,分析窖泥的5项理化指标,采用高通量测序技术研究细菌群落结构,并进行相关性分析。结果表明:窖底泥的pH值、过氧化氢酶活性显著高于窖壁泥(P<0.05),窖底泥的铵态氮含量显著低于窖壁泥(P<0.05)。窖泥总体的优势菌门为Firmicutes、Bacteroidetes、Synergistetes,窖底泥的优势菌属为Hydrogenispora、Caproiciproduces、Aminobacterium、Proteiniphilum等,其中Hydrogenispora相对丰度显著高于窖壁泥(P <0.05),窖壁泥的优势菌属为Caproiciproducens、Lactobacillus、Syntrophaceticus、Aminobacterium、Proteiniphilum、Syntrophaceticus、Petrimonas、Sedimentibacter等,其中Caproiciproducens、Lactobacillus、Syntrophaceticus相对丰度显著高于窖底泥(P<0.05)。窖底泥和窖壁泥的理化指标和细菌群落存在差异,pH值是对窖底泥中细菌群落影响力度最大的理化指标,Hydrogenispora是窖底泥的标志性菌属,窖壁泥中参与酸代谢的酶相对丰度更高。说明窖底和窖壁细菌群落存在空间差异,对白酒发酵具有重要影响。

关键词：浓香型白酒窖底泥窖壁泥理化指标细菌群落结构

浓香型大曲贮存期微生物群落演替及代谢产物的变化机制

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食品科学 2023年第22期44卷 225-234页

作者：徐千惠饶家权邹永芳张明罗惠波黄丹四川轻化工大学生物工程学院四川自贡643000 舍得酒业股份有限公司四川射洪629000 酿酒生物技术及应用四川省重点实验室四川自贡643000

为探究浓香型大曲在长时间的贮存过程中微生物群落结构和代谢活动发生的变化规律及原因,通过高通量测序技术获得了贮存过程中曲皮和曲心的微生物群落组成,分析糖化力及液化力的变化,利用顶空固相微萃取-气相色谱-质谱联用技术研究挥发... 详细信息

为探究浓香型大曲在长时间的贮存过程中微生物群落结构和代谢活动发生的变化规律及原因,通过高通量测序技术获得了贮存过程中曲皮和曲心的微生物群落组成,分析糖化力及液化力的变化,利用顶空固相微萃取-气相色谱-质谱联用技术研究挥发性风味物质,并通过构建系统发育零模型结合多元统计分析方法探究了贮存期间大曲微生物菌群的形成机制以及代谢物变化原因。结果表明,浓香型大曲贮存过程中大曲微生物群落重新平衡,酶活力及挥发性化合物进一步丰富和转化;其间,微生物群落的构建由随机性过程主导,同时也受确定性过程影响,其中变量选择发挥较大作用,生态位差异也产生一定影响;大曲糖化力、液化力及风味物质的变化与微生物群落演替息息相关。研究结果揭示了大曲贮存期间微生物、酶活力和挥发性代谢产物的变化规律及变化机制,可为大曲的质量调控提供理论依据。

关键词：浓香型大曲大曲贮存期微生物群落代谢产物群落演替机制相关性分析

广东省149个油茶品种(系)对炭疽病的抗性及其病原菌鉴定

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植物保护学报 2021年第3期48卷 652-661页

作者：黄迪饶筱吕嘉妍黎勇陈园黄永芳陈祖静华南农业大学林学与风景园林学院广东省森林植物种质创新与利用重点实验室广州510642

为明确广东省油茶品种(系)对炭疽病的抗性及引起油茶炭疽病的病原菌种类,对广东省肇庆市、广州市和韶关市的149个油茶品种(系)进行田间抗性调查,从发病组织中分离纯化致病菌,观察菌株形态学特征,并结合3-磷酸甘油醛脱氢酶(glyceraldehyd... 详细信息

为明确广东省油茶品种(系)对炭疽病的抗性及引起油茶炭疽病的病原菌种类,对广东省肇庆市、广州市和韶关市的149个油茶品种(系)进行田间抗性调查,从发病组织中分离纯化致病菌,观察菌株形态学特征,并结合3-磷酸甘油醛脱氢酶(glyceraldehyde-3-phosphate dehydrogenase,GAPDH)基因扩增序列进行分子生物学鉴定。结果显示,有93.29%的油茶品种(系)发生炭疽病,3个调查地油茶炭疽病的平均发病率为18.86%~24.25%,较抗病的油茶品种(系)占调查总数的53.02%,感病油茶品种(系)占调查总数的46.98%。其中,海南3号、长林400号和湘林89号等10个品种(系)表现为近免疫,揭阳5号、桂14号和湘林350号等16个品种(系)表现为高抗,赣5190号、湘林27号和岑软11号等53个品种(系)表现为中抗,赣兴46号、赣州S4号和赣州R10号等36个品种(系)表现为中感,岑软11-3000号、长林53号和湘林67号等34个品种(系)表现为高感,其中岑软11-19号发病率高达65.00%。共分离获得油茶炭疽病致病菌25株,结合形态学特征和基于GAPDH序列的系统发育树分析,将其中24株鉴定为果生炭疽菌Colletotrichum fructicola,1株鉴定为为暹罗炭疽菌C. siamense。筛选的油茶抗病品种(系)可作为广东省油茶良种选育材料,且该省油茶炭疽病主要由果生炭疽菌引起。

关键词：油茶炭疽菌抗病性分离鉴定