检索结果-南通市图书馆

Phosphotungstic acid ionic liquid for efficient photocatalytic desulfurization:Synthesis,application and mechanism

Chinese Journal of Chemical Engineering 2024年第5期69卷 101-111页

作者： Chenchao Hu Suhang Xun Desheng Liu Junjie Zhang minqiang he Wei Jiang Huaming Li Wenshuai Zhu Institute of Environmental health and Ecological Security School of Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment Suzhou University of Science and TechnologySuzhou 215009China

An efficient mass transfer process is a critical factor for regulating catalytic activity in a photocatalytic desulfurization ***,a phosphotungstic acid(HPW)active center is successfully composited with a quaternary ammonium phosphotungstate-based hexadecyltrimethylammonium chloride ionic liquid(CTAC-HPW)by the ion exchange method for the photocatalytic oxidative desulfurization of dibenzothiophene *** keggin structure of HPW and highly mass transfer performance of organic cations synergistically enhanced the photocatalytic activity towards the effective convertion of dibenzothiophene(DBT)with the excitation of visible *** deep desulfurization(he CTAC-HPW photocatalyst projects well selectivity to interference from coexisting compounds such as olefins and aromatic hydrocarbons and universality of dibenzothiophenes,for example,4-methyldibenzothiophene(4-MDBT)and 4,6-dimethyldibenzothiophene(4,6-DMDBT).Ultimately,a possible photocatalytic desulfurization mechanism is proposed according to the Gaschromatography-mass spectrometry(GC-MS),proving that the final product is the corresponding *** trapping experiment and electron spin resonance(ESR)analysis confirmed that h^(+)and,COOH played critical roles in the oxidation *** work offers a practicable strategy for efficiently converting DBT to DBTO_(2) with added value.

关键词： Photocatalytic desulfurization Extraction Ionic liquid CTAC-HPW

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

太行山猕猴的交配行为参数与模式

引用

兽类学报 2024年第1期44卷 77-84页

作者：何民强田军东李文韬路纪琪郑州大学生命科学学院郑州450001 郑州大学生物多样性与生态学研究所郑州450001

生存和繁衍是动物的本能,交配则是营有性繁殖动物成功繁殖的前提,亦是自然选择和性选择的重要作用环节。由于在自然条件下较难观察交配行为,故而相对缺乏有关野生动物交配行为的量化分析。本研究以济源五龙口地区的太行山猕猴(Macaca mu... 详细信息

生存和繁衍是动物的本能,交配则是营有性繁殖动物成功繁殖的前提,亦是自然选择和性选择的重要作用环节。由于在自然条件下较难观察交配行为,故而相对缺乏有关野生动物交配行为的量化分析。本研究以济源五龙口地区的太行山猕猴(Macaca mulatta tcheliensis)WLK‑1A群为对象,利用焦点动物取样法,采集了太行山猕猴交配行为数据,并对其进行了量化分析,进而与近缘物种作了比较。研究结果显示,(1)太行山猕猴的交配前行为以社会理毛为主(49.8%),且多由雌性发起(61.8%);(2)太行山猕猴的交配模式属于多次爬跨射精型,一次完整的交配过程包括12个爬跨回合和1次射精,持续时长平均为(719.4±43.3)s;(3)交配后行为以社会理毛(19.4%)和休息(18.1%)为主,雌雄个体交配关系可持续平均(2.1±2.03)d;(4)猕猴属(Macaca)物种的交配参数存在种间差异,交配模式与系统发育关系和分类群组基本吻合,但与社会风格关系不甚明显。本研究结果为全面理解猕猴属物种的繁殖生态学特征提供了基础数据。

关键词：太行山猕猴交配多次爬跨射精猕猴属行为模式

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

活性焦孔结构与含氮官能团协同构筑对低温NO还原特性影响

引用

洁净煤技术 2024年第3期30卷 153-160页

作者：阳嘉程何敏强曲智斌陈兰鑫杨成龙李阳孙飞哈尔滨工业大学能源科学与工程学院黑龙江哈尔滨150001 西安热工研究院有限公司陕西西安710054

低温NH_(3)-SCR是排烟温度低的非电力行业烟气脱硝的重要技术选择,低成本、结构可调性好的碳材料是最具潜力的低温NH_(3)-SCR催化剂之一,但面临脱硝效率低的瓶颈。本文以低成本、大储量准东煤为原料,基于一步催化活化工艺制备了具有典... 详细信息

低温NH_(3)-SCR是排烟温度低的非电力行业烟气脱硝的重要技术选择,低成本、结构可调性好的碳材料是最具潜力的低温NH_(3)-SCR催化剂之一,但面临脱硝效率低的瓶颈。本文以低成本、大储量准东煤为原料,基于一步催化活化工艺制备了具有典型孔隙配组与含氮官能团的活性焦催化剂,探究了活性焦孔隙配组与表面官能团对不同烟气条件下低温NH_(3)-SCR的影响。研究结果表明分级孔与含氮官能团对NH_(3)-SCR均有显著促进作用,兼具分级孔与含氮官能团的氮掺杂分级孔活性焦由于同时改善了传质通道与反应动力学,具有最优的NH_(3)-SCR性能,160℃条件下的脱硝效率高达83.5%,相比氮掺杂微孔活性焦、无掺杂分级孔焦和微孔活性焦分别提升了14.0%、26.5%和110.9%;在SO_(2)或H_(2)O存在条件下,分级孔和含氮官能团对NH_(3)-SCR性能的提升作用更加明显,微孔活性焦脱硝效率会由39.6%衰减至13.8%和34.9%,而氮掺杂分级孔焦脱硝效率有所提升,达86.4%和86.7%,这可能与官能化分级孔环境强化不同烟气组分间的协同效应有关。探明了碳基低温NH3-SCR性能与碳材料理化结构之间的依存关系,为发展高性能碳基低温NH3-SCR技术提供了新思路。

关键词：低温NH_(3)-SCR 煤基活性焦孔隙配组含氮官能团协同构筑

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

hexagonal boron nitride:A metal-free catalyst for deep oxidative desulfurization of fuel oils

引用

Green Energy & Environment 2020年第2期5卷 166-172页

作者： Peiwen Wu Linjie Lu Jing he Linlin Chen Yanhong Chao minqiang he Fengxia Zhu Xiaozhong Chu Huaming Li Wenshuai Zhu School of Chemistry and Chemical Engineering Insitute for Energy ResearchJiangsu UniversityZhenjiang212013China School of the Environment and Safety Engineering Jiangsu University212013China School of Chemistry and Chemical Engineering Huaiyin Normal UniversityHuaian223300China

Oxidative desulfurization(ODS)has been proved to be an efficient strategy for the production of clean fuel *** metal-based materials have been employed as excellent ODS catalysts,but being hindered by their high-cost and potential secondary *** this work,we employed graphene analogous hexagonal boron nitride(h-BN)as a metal-free catalyst for ODS with hydrogen peroxide(H2O2)as the *** h-BN catalyst was characterized and proved to be a few-layered structure with relatively high specific surface *** h-BN catalyst showed a 99.4%of sulfur removal in fuel oil under the optimized reaction ***,the h-BN can be recycled for 8 times without significant decrease in the catalytic *** mechanism analysis found that it is the boron radicals in h-BN activated H2O2 to generate·OH species,which can readily oxidize sulfides to corresponding sulfones for *** work would provide another choice in choosing metal-free catalysts for ODS.

关键词： Boron nitride Metal-free Oxidation Deep desulfurization Fuel oils

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

3D-printing of integrated spheres as a superior support of phosphotungstic acid for deep oxidative desulfurization of fuel

引用

Journal of Energy Chemistry 2020年第6期29卷 91-97,I0004页

作者： Jie Zhu Peiwen Wu Linlin Chen Jing he Yingcheng Wu Chao Wang Yanhong Chao Linjie Lu minqiang he Wenshuai Zhu Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013JiangsuChina Zhenjiang Sandi New Materials Co. Ltd.Zhenjiang 212013JiangsuChina School of the Environment and Safety Engineering Institute of Environmental Health and Ecological SecurityJiangsu UniversityZhenjiang 212013JiangsuChina

Construction of catalysts with integral structure for oxidative reaction process is an essential promotion to catalysts in industrial *** this work,a 3D printing method was employed to prepare 3D printed spheres(3D-PSs),followed by carbonization to form 3D carbon spheres(3D-CSs).Then,a 3D-CSs supported phosphotungstic acid(HPW/3D-CSs)was prepared for deep oxidative *** with traditional powder catalysts,the as-prepared catalyst is easy to be operated and separated from oil *** supported catalyst possesses excellent catalytic performance and the removal of DBT,4-MDBT and 4,6-DMDBT in fuel oil,reaching^100%of sulfur *** effects of various experimental parameters on desulfurization efficiency were considered to optimize reaction ***,the catalyst shows excellent thermal and chemical stability,with no obvious decrease in desulfurization activity after 5 ***–MS analysis indicates DBT sulfone was the solely oxidized product of DBT.

关键词： 3D printing Integrated spheres Supported catalyst Oxidative desulfurization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Photocatalytic oxidative of Keggin-type polyoxometalate ionic liquid for enhanced extractive desulfurization in binary deep eutectic solvents

引用

Chinese Journal of Chemical Engineering 2022年第4期35卷 205-211页

作者： Linlan Wu Zhengxin Jiao Suhang Xun minqiang he Lei Fan Chao Wang Wenshu Yang Wenshuai Zhu Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China School of Environment and Safety Engineering Institute of Environmental Health and Ecological SecurityJiangsu UniversityZhenjiang 212013China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

A series of novel binary deep eutectic solvents(DESs)composed of choline chloride(ChCl)and formic acid(HCOOH)with different molar ratios have been successfully synthesized and applied in extractive desulfurization(EDS).Keggin-type polyoxometallate ionic liquid[TTPh]_(3)PW_(12)O_(40) was prepared and used as catalyst to enhance the EDS capacity by means of photocatalytic oxidative *** of the DESs and[TTPh]_(3)PW_(12)O_(40) ionic liquid catalyst were characterized in detail by Fourier transform infrared spectroscopy spectra(FT-IR),elemental analysis,and X-ray photoelectron spectroscopy(XPS).It was found that the molar ratios of Ch Cl:HCOOH had a major impact on desulfurization performance,and the optimal desulfurization capacity 96.5%was obtained by ChCl/5 *** dibenzothiophene(DBT),the desulfurization efficiencies of 4-methylbenzothiophene(4-MDBT)and 4,6-dimethyldibenzothiophene(4,6-DMDBT),two kinds of DBT derivatives,were also investigated under the same experimental ***,the free radical scavenging experiments manifested that superoxide radical(·O_(2)^(-)) and hole(h^(+)) played important roles in the desulfurization *** further analysis of the oxidation products by gas chromatography-mass spectrometry(GC–MS),the possible reaction mechanism was ***,photocatalytic oxidative has been proved to be one of the efficient approaches for enhancing the extractive desulfurization performance in DES.

关键词： Deep eutectic solvents Extractive desulfurization Ionic liquid Photocatalytic oxidative Aerobic Fuel

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fabrication of oxygen-defective tungsten oxide nanorods for deep oxidative desulfurization of fuel

引用

Petroleum Science 2018年第4期15卷 849-856页

作者： Haibin Sun Peiwen Wu Jing he Mingyang Liu Linhua Zhu Fengxia Zhu Guangying Chen minqiang he Wenshuai Zhu School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu University Key Laboratory of Tropical Medicinal Plant Chemistry of Education Hainan Normal University School of Chemistry and Chemical Engineering Huaiyin Normal University

Owing to the increasingly serious environmental issues caused by the sulfur burnt in fuel, desulfurization has become an important topic. In this work, an amphiphilic oxygen-defective tungsten oxide was synthesized by a colloidal chemistry method. The amphiphilic property and oxygen defects were well characterized, and the structure of the oxygen-defective tungsten oxide catalyst was investigated. In addition, the catalyst was employed in oxidative desulfurization system of fuel,and deep desulfurization was achieved. It was found that the very high oxidative desulfurization performance of oxygendefective tungsten oxide catalyst resulted from both the amphiphilic property and oxygen defects. This work can provide a strategy for preparation of highly active metal oxide catalysts with oxygen defects in oxidative desulfurization reaction of fuel.

关键词： Tungsten oxide Oxygen vacancies Oxidative desulfurization Amphiphilic catalyst

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

One-pot in-situ synthesis of coralloid supported VO_(2)catalyst for intensified aerobic oxidative desulfurization

引用

Chinese Journal of Chemical Engineering 2023年第4期56卷 136-140页

作者： Suhang Xun Cancan Wu Lida Tang Mengmeng Yuan Haofeng Chen minqiang he Wenshuai Zhu Huaming Li Institute of Environmental health and Ecological Security School of Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China

A coralloid 3D g-C_(3)N_(4)supported VO_(2)catalyst was successfully synthesized in-situ by one-pot method,avoiding the agglomeration of VO_(2)during the *** morphological and compositional information of the supported catalyst were investigated detailedly.30%VO_(2)/3D g-C_(3)N_(4)revealed excellent catalytic activity in aerobic oxidative desulfurization,the oxidative of dibenzothiophene(DBT),4-methyldibenzothiophene(4-MDBT)and 4,6-dimethyldibenzothiophene(4,6-DMDBT)reached 98.6%,99%and 99.4%,respectively,under the same mild *** recycling performance and the mechanism on the oxidative of DBT were studied as well.

关键词： Alzheimer's disease Amyloid-βprotein Protein aggregation Chirality Inhibitor heptapeptide

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Designing all-solid-state Z-Scheme 2D g-C_3N_4/Bi_2WO_6 for improved photocatalysis and photocatalytic mechanism insight

引用

Green Energy & Environment 2018年第3期3卷 229-238页

作者： Mao Mao Shuowei Zhao Zhigang Chen Xiaojie She Jianjian Yi Kaixiang Xia Hui Xu minqiang he Huaming Li School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu University Institute of Environmental Science

Bi_2WO_6 was modified by two-dimensional g-C_3N_4(2D g-C_3N_4)via a hydrothermal *** structure,morphology,optical and electronic properties were investigated by multiple techniques,including X-ray diffraction(XRD),X-ray photoelectron spectroscopy spectra(XPS),Fourier transform infrared spectroscopy(FT-IR),scanning electron microscopy(SEM),transmission electron microscopy(TEM),Ultravioletvisible diffuse reflection spectroscopy(DRS),photocurrent and electrochemical impedance spectroscopy(EIS),electron spin resonance(ESR),*** B(Rh B)was used as the target organic pollutant to research the photocatalytic performance of as-prepared *** Bi_2WO_6/2D g-C_3N_4exhibited a remarkable improvement compared with the pure Bi_2WO_*** enhanced photocatalytic activity was because the photogenerated electrons and holes can quickly separate by Z-Scheme passageway in *** photocatalytic mechanism was also researched in detail through ESR analysis.

关键词： All-solid-state Z-Scheme photocatalyst 2D g-C3N4 Bi2WO6 Photocatalysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Amorphous TiO_2-supported Keggin-type ionic liquid catalyst catalytic oxidation of dibenzothiophene in diesel

引用

Petroleum Science 2018年第4期15卷 870-881页

作者： Zhendong Yu Donghui Wang Suhang Xun minqiang he Ruliang Ma Wei Jiang Hongping Li Wenshuai Zhu Huaming Li School of Chemistry and Chemical Engineering Jiangsu University School of Environment and Safety Engineering Institute of Environmental Health and Ecological SecurityJiangsu University Institute for Energy Research Jiangsu University

Supported ionic liquid(IL) catalysts [Cmim]PMoO/Am TiO(amorphous TiO) were synthesized through a one-step method for extraction coupled catalytic oxidative desulfurization(ECODS) system. Characterizations such as FTIR, DRS,wide-angle XRD, Nadsorption–desorption and XPS were applied to analyze the morphology and Keggin structure of the catalysts. In ECODS with hydrogen peroxide as the oxidant, it was found that ILs with longer alkyl chains in the cationic moiety had a better effect on the removal of dibenzothiophene. The desulfurization could reach 100% under optimal conditions, and GC–MS analysis was employed to detect the oxidized product after the reaction. Factors affecting the desulfurization efficiencies were discussed, and a possible mechanism was proposed. In addition, cyclic experiments were also conducted to investigate the recyclability of the supported catalyst. The catalytic activity of [Cmim]PMoO/Am TiOonly dropped from 100% to 92.9% after ten cycles, demonstrating the good recycling performance of the catalyst and its potential industrial application.

关键词： Supported ionic liquid catalyst Polyoxometallate Oxidative desulfurization Amorphous TiO_2 Dibenzothiophene

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：