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Frontiers in Energy 2022年第3期16卷 471-482页

作者： Haoxuan Ma yuefa jia Jongseong Bae Chunli Liu Department of Physics and Oxide Research Center Hankuk University of Foreign StudiesYongin17035Republic of Korea Busan Center Korea Basic Science InstituteBusan46742Republic of Korea

The phase transition process of a photocatalytic system from NaBiO_(3)·2H_(2)O to BiO_(2−x) has been investigated to understand the important factors that affect photocatalytic performance in a composite system. It is found that a proper amount of BiO2−x on the surface of NaBiO_(3)·2H_(2)O could effectively suppress the electron/hole recombination and increase the exposed reactive sites for photocatalytic reaction. A fully covered BiO2−x on NaBiO3·2H2O results in a dramatical decrease of photocatalytic degradation of dye. An over long hydrothermal process can result in BiO_(2−x) with reduced oxygen vacancies, which degrades the photocatalytic activity. Furthermore, the photocatalytic reduction ability of CO_(2) conversion has been investigated, indicating that the surface activity to different reactants also directly affects the catalytic performance. The investigation of the gradient phase transition process presents a clear guidance to construct a desired photocatalytic system, in addition to selecting gradient materials with suitable bandgap structure and a morphology with different fraction and distribution of each component. The defect evolution of each component during construction of a composite is also an important factor that should be optimized and considered in making a composite to achieve high photocatalytic efficiency.

关键词： composite construction distribution BiO2−x evolution of defects

A review on SnFe2O4 and their composites: Synthesis, properties, and emerging applications

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Progress in Natural Science:Materials International 2022年第5期32卷 517-527页

作者： Hongru Han Yi Luo yuefa jia N.Hasan Chunli Liu School of Water and Environment Chang'an University Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region (Chang'an University) Department of Physics and Oxide Research Center Hankuk University of Foreign Studies

Tin ferrite(SnFe2O4) and their composites have been extensively studied due to their unique functional properties including appealing electronic band structure, good chemical stability, high magnetization, excellent biocompatible and earth-abundant nature. Over the past few years, SnFe2O4and their composites have been well designed and investigated for various kind of applications. In this review, the most important methods for SnFe2O4and their composites synthesis, such as co-precipitation, hydrothermal, solvothermal and sol-gel techniques are summarized. It is important to emphasize that this review mainly focuses on the application of SnFe2O4and their composites for environmental remediation, lithium-ion batteries and hydrogen peroxide sensors, which are discussed in detail for the first time. Apart from that, the key factors and essential means to improve their performance and functionality are systematically reported. Finally, the development prospect and challenge of SnFe2O4and their composites are introduced. It is anticipated that this review will be helpful in development of SnFe2O4and their composites with ameliorated performances for practical application in various fields.

关键词： SnFe2O4 Synthesis Environmental remediation Lithium-ion batteries Hydrogen peroxide sensors

Recent advances in bismuth vanadate-based photocatalysts for photoelectrochemical water splitting

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Chinese Chemical Letters 2021年第6期32卷 1869-1878页

作者： Lina Wang Xiaoqiang Shi yuefa jia Hongfei Cheng Lei Wang Qizhao Wang School of Water and Environment Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of EducationChang'an UniversityXi'an 710054China College of Chemistry and Chemical Engineering Northwest Normal UniversityLanzhou 730070China

Photoelectrochemical(PEC)technology is considered to be a promising approach for solar-driven hydrogen production with zero *** vanadate(BiVO_(4))is a kind of photocatalytic material with strong photoactivity in the visible light region and appropriate band gap for PEC water ***,the solar-to-hydrogen efficiency(STH)of BiVO_(4)is far away from the 10%target needed for practical application due to its poor charge separation ***,this review attempts to summarize the strategies for improving the photocurrent density and especially hydrogen production of BiVO_(4)materials through PEC techniques in the last three years,such as doping nonmetal and metal elements,depositing noble metals,constructing heterojunctions,coupling with carbon and metalorganic framework(MOF)materials to further enhance the PEC performance of BiVO_(4)*** review aims to serve as a general guideline to fabricate highly efficient BiVO_(4)-based materials for PEC water splitting.

关键词： Bismuth vanadate(BiVO_(4)) Photoelectrochemical Water splitting Hydrogen production Heterojunctions

Boosting charge separation of BiVO_(4)photoanode modified with 2D metal-organic frameworks nanosheets for high-performance photoelectrochemical water splitting

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Chinese Chemical Letters 2023年第6期34卷 287-292页

作者： Lina Wang Zejun Liu Jinming Zhang yuefa jia Jingwei Huang Qiong Mei Qizhao Wang School of Water and Environment Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of EducationChang’an UniversityXi’an 710054China College of Chemistry and Chemical Engineering Northwest Normal UniversityLanzhou 730070China School of Land Engineering Chang’an UniversityXi’an 710054China

Water splitting by photoelectrochemical(PEC)processes to convert solar energy into hydrogen energy using semiconductors is regarded as one of the most ideal methods to solve the current energy crisis and has attracted widespread ***,Co-based metal-organic framework(Co(bpdc)(H_(2)O)_(4)(CoMOF)nanosheets as passivation layers were in-situ constructed on the surface of Bi VO_(4)films through an uncomplicated hydrothermal method(Co-MOF/Bi VO_(4)).Under AM 1.5G illumination,synthesized CoMOF/BiVO_(4)electrode exhibited a 4-fold higher photocurrent than bare Bi VO_(4),measuring 6.0 m A/cm^(2)at 1.23 V *** in 1 mol/L potassium borate electrolyte(pH 9.5)***,the Co-MOF/BiVO_(4)film demonstrated a 96%charge separation efficiency,a result caused by an inhibited recombination rate of photogenerated electrons and holes by the addition of Co-MOF *** work provides an idea for depositing inexpensive 2D Co-MOF nanosheets on the photoanode as an excellent passivation layer for solar fuel production.

关键词： Photoelectrochemical BiVO_(4) Water splitting Co-MOF 2D nanosheets Charge separation

高岭石基复合材料在光催化领域应用的研究进展

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人工晶体学报 2022年第1期51卷 170-184页

作者：赵蕴璞程宏飞曹洲贾悦发长安大学水利与环境学院西安710054 长安大学地球科学与资源学院西安710054

环境污染和能源紧缺已成为当今社会亟须解决的重大问题。高岭石基复合材料光催化处理技术因绿色环保、经济安全、无二次污染而备受关注。鉴于高岭石在光催化领域的研究现状,本文介绍了高岭石的层状硅酸盐结构特征及其在光催化领域的应... 详细信息

环境污染和能源紧缺已成为当今社会亟须解决的重大问题。高岭石基复合材料光催化处理技术因绿色环保、经济安全、无二次污染而备受关注。鉴于高岭石在光催化领域的研究现状,本文介绍了高岭石的层状硅酸盐结构特征及其在光催化领域的应用优势,综述了高岭石基光催化材料的主要类型、基本特征、合成方法、改性过程、光催化特点及其应用进展与优势,最后,提出了高岭石基复合材料在光催化领域应用的重点研究方向。以期获得制备工艺简单、光催化性能优异、原料易获取且无环境污染的高岭石基光催化复合材料,从根本上解决环境污染问题,缓解能源紧缺危机。

关键词：高岭石光催化 TiO_(2)/高岭石 g-C_(3)N_(4)/高岭石 ZnO/高岭石层层自组装降解

光催化功能Fe_2O_3/TiO_2陶瓷的制备及其光降解特性

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钢铁钒钛 2015年第1期36卷 26-31页

作者：李榕贾悦发甄强布乃敬伍军上海大学纳米科学与技术研究中心上海200444

以九水硝酸铁和硫酸钛为原料,利用共沉淀法合成了Fe2O3/TiO2混合粉体,粉体压制成型的素坯经过高温烧结制备Fe2O3/TiO2陶瓷。通过XRD、SEM分析Fe2O3/TiO2多孔陶瓷的物相和微观结构,并通过对甲基蓝溶液(浓度为25mg/L)的降解研究其光催化... 详细信息

以九水硝酸铁和硫酸钛为原料,利用共沉淀法合成了Fe2O3/TiO2混合粉体,粉体压制成型的素坯经过高温烧结制备Fe2O3/TiO2陶瓷。通过XRD、SEM分析Fe2O3/TiO2多孔陶瓷的物相和微观结构,并通过对甲基蓝溶液(浓度为25mg/L)的降解研究其光催化性能和循环使用性能。结果表明:紫外和可见光条件下,该陶瓷第一次使用时对甲基蓝溶液的最大降解率分别是80%和94%,循环使用三次后,最大降解率分别仅下降16%和17%。所制备的Fe2O3/TiO2陶瓷具有良好的光催化性能和循环使用性能,且利于收集,可以广泛应用于污水处理。

关键词： Fe2O3/TiO2陶瓷光催化循环使用性能降解率

程度副词“越”、“越发”的语法化及相关问题

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汉语学习 2010年第5期 69-75页

作者：张家合浙江师范大学人文学院浙江金华321004

程度副词"越"产生于宋代,主要用在句中作状语。明代晚期之后,"越"主要用于"越……越……"结构之中,向框式程度副词转变,这一变化基本完成于清代晚期。"越发"的异军突起和"愈……愈……"结构使用频率的下降是促使"越"的句法功能发生转变... 详细信息

程度副词"越"产生于宋代,主要用在句中作状语。明代晚期之后,"越"主要用于"越……越……"结构之中,向框式程度副词转变,这一变化基本完成于清代晚期。"越发"的异军突起和"愈……愈……"结构使用频率的下降是促使"越"的句法功能发生转变的原因。程度副词"越发"产生于明代,明代晚期才大规模使用,主要作句中状语。清代晚期以后"越发"逐渐衰落。程度副词"更"的迅速发展是造成"越发"的衰落的直接原因。

关键词：越越发语法化句法特征功能转变

丁苯酞对帕金森病细胞模型JNK通路死亡受体途径相关凋亡因子的影响

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医药导报 2017年第2期36卷 145-149页

作者：陈娟吴庆文贾玉凤程月发王小伟郭瑞玉华北理工大学护理与康复学院唐山063000 华北理工大学冀唐学院唐山063300

目的探讨丁苯酞对帕金森病(PD)细胞模型JNK通路死亡受体途径相关凋亡因子p-JNK、Fas、Fas L的作用。方法体外培养SH-SY5Y细胞,建立MPP+诱导的SH-SY5Y细胞PD模型。分为正常对照组(细胞正常培养,不加任何药物干预),MPP+组(培养的细胞中加... 详细信息

目的探讨丁苯酞对帕金森病(PD)细胞模型JNK通路死亡受体途径相关凋亡因子p-JNK、Fas、Fas L的作用。方法体外培养SH-SY5Y细胞,建立MPP+诱导的SH-SY5Y细胞PD模型。分为正常对照组(细胞正常培养,不加任何药物干预),MPP+组(培养的细胞中加入1 mmol·L^(-1)MPP+),丁苯酞+MPP+组(培养的细胞中加入10μmol·L^(-1)丁苯酞作用3 h后,再加入1 mmol·L^(-1)MPP+),SP600125+MPP+组(培养细胞中加入10μmol·L^(-1)JNK抑制药SP600125作用3 h后再加入1 mmol·L^(-1)MPP+)。应用噻唑蓝(MTT)法检测MPP+诱导的SH-SY5Y细胞增殖能力;Annexin-V/PI流式细胞术检测细胞凋亡率;倒置相差显微镜观察细胞形态的变化;Western blotting印迹法检测相关凋亡蛋白p-JNK、Fas、Fas L的表达。结果与正常对照组细胞存活率(100.00±0.00)%比较,MPP+组细胞存活率降低,仅为(49.30±2.07)%(P<0.05),丁苯酞+MPP+组和SP600125+MPP+组细胞存活率高于MPP+组,存活率分别为(71.9±2.10)%和(76.4±2.80)%(P<0.05);与正常对照组细胞凋亡率(10.63±2.07)%比较,MPP+组细胞凋亡率升高,为(32.27±2.26)%,差异有统计学意义(P<0.05);与MPP+组比较,丁苯酞+MPP+组和SP600125+MPP+组细胞凋亡率下降,细胞凋亡率分别为(21.13±3.63)%和(19.15±2.63)%,差异有统计学意义(P<0.05)。与MPP+组比较,丁苯酞+MPP+组和SP600125+MPP+组凋亡因子p-JNK、Fas、Fas L蛋白的表达量下降(P<0.05)。结论丁苯酞对MPP+诱导的SH-SY5Y细胞凋亡具有一定抑制作用,其机制可能是通过调节JNK通路死亡受体途径上p-JNK、Fas、Fas L的表达,抑制细胞凋亡发生来实现。

关键词：丁苯酞 JNK通路凋亡因子细胞模型,帕金森病