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Enhanced Photothermal Selective Conversion of CO_(2)to CH4 in Water Vapor over Rod-Like Cu and N Co-Doped TiO_(2)

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Chinese Journal of Structural Chemistry 2022年第12期41卷 33-42页

作者： Ji-Chao Wang Xiu Qiao weina shi Huiling Gao Lingchen Guo College of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang 453000China School of Chemistry and Materials Engineering Xinxiang UniversityXinxiang 453000China School of Ecology and Environment Zhengzhou UniversityZhengzhou 450052China

Enhancing catalytic efficiency and selectivity is critical issues for CO_(2) *** rod-like Cu/N co-doped TiO_(2) samples(Cu/N-TiO_(2)) were synthesized by the electrospinning-calcination *** substitutional Cu and interstitial N doping not only enhanced visible-light absorption ability,but also formed the Ti(Ⅲ)*** obviously synergistic effect between the photocatalysis and thermalcatalysis appeared for CO_(2) conversion over the 8-Cu/N-TiO_(2) *** 9 h visible-light-illumination at 160℃,the CO,CH4and O_(2) yields reached 49.7,1455.1 and 2910.2μmol/gcat,*** the 7thcycling,the yields of two main CH4and O_(2) products were slightly down by less than 11.5%,and the selectivity of CH_(4) product kept above 98%.Combined with the theoretical surface mode,Cu/N co-doping could promote the adsorption-ability for H_(2)O and CO_(2) molecules and reduce activation-energy for CO_(2)***,the co-doping construction showed a great significance of designing efficient photothermal catalysts for the CO_(2)conversion application.

关键词： CO_(2)conversion photothermal catalysis rod-like TiO_(2) co-doped

Controllable synthesized step-scheme heterojunction of WO_(3)/CuBi_(2)O_(4) decorated WO_(3) plates for visible-light-driven CO_(2) reduction

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Nano Research 2022年第7期15卷 5962-5969页

作者： weina shi Ji-Chao Wang Xiaowei Guo Xiu Qiao Fang Liu Renlong Li Wanqing Zhang Yuxia Hou Huijuan Han School of Chemistry and Materials Engineering Xinxiang UniversityXinxiang 453000China College of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang 453000China Henan Photoelectrocatalytic Material and Micro-Nano Application Technology Academician Workstation Xinxiang UniversityXinxiang 450003China College of Chemistry Zhengzhou UniversityZhengzhou 450000China

Rational design and construction of step-scheme(S-scheme)photocatalyst has received much attention in the field of CO_(2) reduction because of its great potential to solve the current energy and environmental *** this study,a series of plate-like WO_(3)/CuBi_(2)O_(4)(WO/CBO)photocatalysts were *** CO and CH4 yields over optimal composite reached 1,115.8 and 67.2μmol/m2 after 9 h visible light illumination(λ>400 nm),which was higher than those of two pure catalysts in CO_(2) *** product yields slightly decreased in the 7th ***,the staggered band structure of heterojunction was characterized by diffuse reflectance spectroscopy(DRS)and valence band-X-ray photoelectron spectroscopy(VB-XPS),and a S-scheme charge transfer mechanism was verified by detecting electron spin resonance(ESR)and XPS result about surface composition of WO/CBO catalyst in dark or *** work may be useful for rational designing of S-scheme photocatalyst and provides some illuminating insights into the S-scheme transfer mechanism.

关键词： CO_(2)reduction WO_(3)plate CuBi_(2)O_(4) step-scheme(S-scheme) photocatalyst

系统化干预对肝损伤患儿肝功能、生长发育及家长疾病知识掌握情况的影响

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维普期刊数据库

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河北医药 2024年第6期46卷 897-899,903页

作者：赵瑞雪白革兰石伟娜李博叶立红河北省儿童医院皮肤科石家庄市050000 河北省儿童医院消化科石家庄市050000 河北省石家庄市第五医院儿科河北省石家庄市第五医院病理科

目的探析儿童肝损伤采用系统化干预对家长疾病知识掌握、患儿肝功能及生长发育的影响。方法选取河北省儿童医院2020年1月至2021年6月收治的肝损伤患儿100例,依据随机数字表法分为对照组和观察组,每组50例。对照组给与常规肝损伤护理,观... 详细信息

目的探析儿童肝损伤采用系统化干预对家长疾病知识掌握、患儿肝功能及生长发育的影响。方法选取河北省儿童医院2020年1月至2021年6月收治的肝损伤患儿100例,依据随机数字表法分为对照组和观察组,每组50例。对照组给与常规肝损伤护理,观察组采取系统化干预模式。从家长对肝损伤知识掌握程度及儿童生长发育方面评价系统化干预模式实施价值。结果干预后观察组儿童家长对肝损伤知识掌握评分、儿童粗大运动、精细运动及发育商等指标评分高于对照组(P0.05);干预后观察组均高于对照组,差异有统计学意义(P<0.05)。结论在儿童肝损伤护理中采用系统化干预模式有助于提升家长的疾病认知,促进儿童发育,改善患儿肝功能,提升患儿生活质量,值得推广。

关键词：系统化干预儿童肝损伤生长发育肝功能生活质量

Eutrophication of Jiangsu Coastal Water and Its Role in the Formation of Green Tide

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Journal of Ocean University of China 2024年第1期23卷 109-118页

作者： XIAO Mingyan SONG weina ZHANG Haibo shi Xiaoyong SU Rongguo Key Laboratory of Marine Chemistry Theory and Technology Ministry of EducationOcean University of ChinaQingdao 266100China National Marine Environmental Monitoring Center Dalian 116000China National Marine Hazard Mitigation Service Beijing 100194China

Since 2007,the large-scale green tide caused by Ulva prolifera(***)have occurred as a recurrent phenomenon in the southern Yellow Sea of *** surveys and satellite remote sensing showed that the small scattered patches of green tide algae were first observed along the Porphyra agriculture area of the Subei Shoal in late *** this study,we attempted to identify the role of eutrophication in the origin of the green tide in the Subei Shoal and its adjacent *** Shoal and its adjacent area are characterized by rich nutrients,especially NO_(3)^(-)-N,NH_(4)^(+)-N,PO_(4)^(3-)-P,and other bioavailable components(such as urea-N and amino acids).In the spring of 2017,the average concentrations of NO_(3)^(-)-N were 19.01±11.01μmolL^(-1),accounting for 86.68%of the dis-solved inorganic nitrogen(DIN).In addition,the average concentration of NH4^(+)-N was 2.51±1.60μmolL^(-1).PO_(4)^(3-)-P had an average concentration of 0.14±0.13μ*** average concentrations of urea-N and total hydrolyzed amino acids(THAA)were 1.73±1.36μmolL^(-1)and 1.33±0.80μmolL^(-1),*** nutritive substances play a key role in the rapid production of *** and make the Jiangsu coastal water an incubator for green tide.

关键词： green tide nutrients algae Ulva prolifera eutrophication Subei Shoal

BiOI/WO3 photoanode with enhanced photoelectrochemical water splitting activity

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Frontiers of Optoelectronics 2018年第4期11卷 367-374页

作者： weina shi Xiaowei LV Yan SHEN Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China College of Chemistry and Chemical Engineering Xinxiang UniversityXinxiang 453003China

This work reports on a novel BiOI/WO3 composite photoanode, which was fabricated by depositing BiOI onto a WO3 nanoflake electrode through a electrodeposition method. The photoelectrochemical (PEC) activity of the BiOI/WO3 electrode for water splitting under visible-light irradiation was evaluated. The results show that the BiOI/WO3 photoanode achieved a photocurrent density of 1.21 mA·cm–2 at 1.23 V vs. reversible hydrogen electrode (RHE), which was higher than that of the bare WO3 nanoflake electrode (0.67 mA·cm–2). The enhanced PEC acticity of BiOI/WO3 for water splitting can be attributed to the expansion of light absorption range as well as the facilitated separation of photo-generated carriers.

关键词： photoelectrochemistry WO 3 BiOI water splitting

Mechanisms of isomerization and hydration reactions of typicalβ-diketone at the air-droplet interface

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Journal of Environmental Sciences 2024年第7期141卷 225-234页

作者： Yuemeng Ji Weiyong Luo Qiuju shi Xiaohui Ma Ziqi Wu weina Zhang Yanpeng Gao Taicheng An Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health Guangdong Key Laboratory of Environmental Catalysis and Health Risk ControlInstitute Environmental Health and Pollution ControlGuangdong University of TechnologyGuangzhou 510006China Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of EducationSchool of Environmental Science and EngineeringGuangdong University of TechnologyGuangzhou 510006China

Acetylacetone(AcAc)is a typical class ofβ-diketones with broad industrial applications due to the property of the keto-enol isomers,but its isomerization and chemical reactions at the air-droplet interface are still ***,using combined molecular dynamics and quantum chemistry methods,the heterogeneous chemistry of AcAc at the air-droplet interface was investigated,including the attraction of AcAc isomers by the droplets,the distribution of isomers at the air-droplet interface,and the hydration reactions of isomers at the air-droplet *** results reveal that the preferential orientation of two AcAc isomers(keto-and enol-AcAc)to accumulate and accommodate at the acidic air-droplet *** isomerization of two AcAc isomers at the acidic air-droplet interface is more favorable than that at the neutral air-droplet interface because the“water bridge”structure is destroyed by H_(3)O^(+),especially for the isomerization from keto-Ac Ac to *** the acidic air-droplet interface,the carbonyl or hydroxyl O-atoms of two AcAc isomers display an energetical preference to ***-diol is the dominant products to accumulate at the air-droplet interface,and excessive keto-diol can enter the droplet interior to engage in the *** photooxidation reaction of AcAc will increase the acidity of the air-droplet interface,which indirectly facilitate the uptake and formation of more *** results provide an insight into the heterogeneous chemistry ofβ-diketones and their influence on the environment.

关键词： Acetylacetone Air-droplet interface Theoretical simulation Isomerization Hydration reaction mechanism

Efficient Photocatalytic CO2 Reduction over WO3 Nanoflakes supported Octahedral Cu2O Heterostructure

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Efficient Photocatalytic CO2 Reduction over WO3 Nanoflakes s...

ITO surface modification for inverted organic photovoltaics

中国化学会第二届全国光功能材料青年学者研讨会

作者： Ji-Chao Wang weina shi College of Chemistry and Chemical Engineering Henan Institute of Science and Technology College of Chemistry and Chemical Engineering Xinxiang University

Hexagonal-phase WO3 nanosheet with dominant facets was synthesized by a solvothermal-calcination method, and CuO was composite and the electrodeposition method. The Cu O/WO-001 composite nanosheets exhibited an excellent photocatalytic CO reduction performance under visible irradiation(λ > 400 nm). The yields of CO, O and H using Cu O/WO-001 photocatalysts reached 11.7, 5.7 and 0.7 μmol, respectively, after24 h visible-light illumination and the photocatalyst showed good photocatalytic activity in the fourth cycling *** enhanced photocatalytic activity was ascribed to the efficient separation of the photoinduced charges derived from the constructed heterojunction in the nanosheet composite. The(0 0 1) facet of hexagonal phase WO was in favor of the transfer between the photo-induced holes and the water molecules, conducing to H O oxidation in the CO reduction process. The indirect Z-scheme charge transfer mode of Cu O/WO was then demonstrated by measuring band structures and the potential mechanism of CO reduction is further proposed. The present research is expected to be useful in developing Z-scheme photocatalysts of WO-based nanosheet, and provides meaningful information for hopefully stimulating more insightful investigations of systematical design and controlled assembly of visible-light-driven photocatalysts.

关键词： Cu2O Z scheme CO2 reduction Photocatalysis

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Frontiers of Optoelectronics 2015年第3期8卷 269-273页

作者： Mingzhang DENG weina shi Chen ZHAO Bingbing CHEN Yan SHEN Wtthan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China

The work function （WF） of indium-tin-oxide （ITO） substrates plays an important role on the inverted organic photovoltaic device performance. And electrode engineering has been a useful method to facilitate carrier extraction or charge collection to enhance organic photovoltaic （OPV） performance. By using self-assembly technique, we have deposited poly（dimethyl diallylammonium chloride）（PDDA） layers onto ITO coated glass substrates. The results indicate that the surface WF of ITO is reduced by about 0.3 eV after PDDA modification, which is attributed to the modulation in electron affinity. In addition, the surface roughness of ITO substrate became smaller after PDDA modification. These modified ITO substrates can be applied to fabricate inverted OPVs, in which ITO works as the cathode to collect electrons. As a result, the photovoltaic performance of inverted OPV is substantially improved, mainly reflecting on the increase of short circuit current density.

关键词： organic photovoltaic (OPV) indium tin oxide(ITO) inverted structure surface modification workfunction (WF)

Carbon Quantum Dots/TiOx Electron Transport Layer Boosts Efficiency of Planar Heterojunction Perovskite Solar Cells to 19%

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Carbon Quantum Dots/TiOx Electron Transport Layer Boosts Eff...