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Recentadvancesincarbon‐basedmaterials for solar‐driven interfacial photothermal conversion water evaporation:Assemblies,structures,applications,and prospective

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Carbon Energy 2023年第11期5卷 101-142页

作者： Yanmin Li Yanying Shi Haiwen Wang Tiefeng Liu Xiuwen Zheng shanmin gao Jun Lu Department of Chemistry Key Laboratory of Functional Nanomaterials and Technology in Universities of ShandongSchool of Chemistry&Chemical EngineeringLinyi UniversityLinyiChina Department of Chemistry School of Chemical EngineeringDalian University of TechnologyDalianChina Center for Advanced Materials Research College of Materials Science and EngineeringZhejiang University of TechnologyHangzhouChina Department of Chemical Engineering College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina

The shortage of fresh water in the world has brought upon a serious crisis to human health and economic ***‐driven interfacial photothermal conversion water evaporation including evaporating seawater,lake water,or river water has been recognized as an environmentally friendly process for obtaining clean water in a low‐cost ***,water transport is restricted by itself by solar energy absorption capacity's limits,especially for finite evaporation rates and insufficient working ***,it is important to seek photothermal conversion materials that can efficiently absorb solar energy and reasonably design solar‐driven interfacial photothermal conversion water evaporation *** paper reviews the research progress of carbon‐based photothermal conversion materials and the mechanism for solar‐driven interfacial photothermal conversion water evaporation,as well as the summary of the design and development of the *** on the research progress and achievements of photothermal conversion materials and devices in the fields of seawater desalination and photothermal electric energy generation in recent years,the challenges and opportunities faced by carbon‐based photothermal conversion materials and devices are *** prospect of the practical application of solar‐driven interfacial photothermal conversion evaporation technology is foreseen,and theoretical guidance is provided for the further development of this technology.

关键词： applications carbon‐based materials evaporator photothermal conversion water evaporation

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g-C_(3)N_(4)-coated MnO_(2)hollow nanorod cathode for stable aqueous Zn-ion batteries

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Frontiers of Chemical Science and Engineering 2023年第2期17卷 217-225页

作者： Jiwei Xie Guijing Liu Kaikai Wang Xueming Li Yusen Bai shanmin gao Leqing Fan Rundou Zheng School of Chemistry and Materials Science Ludong UniversityYantai 264025China School of Chemistry&Chemical Engineering Linyi UniversityLinyi 276000China Fujian Key Laboratory of Photoelectric Functional Materials Huaqiao UniversityXiamen 361021China

Aqueous zinc-ion batteries are attracting considerable attention because of their high safety compared with conventional lithium-ion ***-based materials have been widely developed for zinc-ion batteries cathode owning to their low cost,high security and simple ***,the severe volume expansion and poor stability during charging and discharging limit the further development of manganese-based ***,superiorα-MnO_(2)@g-C_(3)N_(4)was successfully prepared for stable zinc-ion batteries(ZIBs)cathode by introducing g-C_(3)N_(4)*** with pureα-MnO_(2),αMnO_(2)@g-C_(3)N_(4)has a specific capacity of 298 mAh·g^(-1)at 0.1 A·g^(-1).Even at 1 A·g^(-1),theα-MnO_(2)@g-C_(3)N_(4)still retains 100 mAh·g^(-1)(83.4%retention after 5000 cycles),implying its excellent cycling ***α-MnO_(2)@gC_(3)N_(4)-based cathode has the highest energy density(563 Wh·kg^(-1))and power energy density(2170 W·kg^(-1)).This work provides new avenues for the development of a wider range of cathode materials for ZIBs.

关键词： α-MnO_(2)hollow nanorods g-C_(3)N_(4) heterojunction aqueous Zn-ion batteries

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Enhanced soft magnetic properties of iron powders through coating MnZn ferrite by one-step sol–gel synthesis

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Chinese Physics B 2019年第5期28卷 300-304页

作者： Dong Liu shanmin gao Rencheng Jin Feng Wang Xiaoxiao Chu Taiping gao Yubao Wang School of Chemistry and Materials Science Ludong University

The MnZn ferrite coating formed on the surface of iron-based soft magnetic powders via facile and modified sol–gel process has been fabricated to obtain better magnetic performance due to its higher permeability compared with traditional nonmagnetic insulation coatings. The influence of the MnZn ferrite contents on the magnetic performance of the soft magnetic composites(SMCs) has been studied. As the MnZn insulation content increases, the core loss first experiences a decreasing trend that is followed by progressive increase, while the permeability follows an increasing trend and subsequently degrades. The optimized magnetic performance is achieved with 2.0 wt% MnZn ferrite, which results from the decrement of inter-particle eddy current losses based on loss separation. A uniform and compact coating layer composed of MnZn ferrite and oxides with an average thickness of 0.38 ± 0.08 μm is obtained by utilizing ion beam technology, and the interface between the powders and the coating shows satisfied adhesiveness compared with the sample directly prepared by mechanical mixing. The evolution of the coating layers during the calcination process has been presented based on careful analysis of the composition and microstructure.

关键词： soft magnetic powders magnetic performance coating layer ion beam technology

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Carbon materials from melamine sponges for supercapacitors and lithium battery electrode materials: A review

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Carbon Energy 2019年第2期1卷 253-275页

作者： Yanying Shi Guijing Liu Rencheng Jin Hui Xu Qingyao Wang shanmin gao School of Chemistry and Materials Science Ludong UniversityYantaiChina

With the increasing energy demand together with the deteriorating environment and decreasing fossil fuel resources,the development of highly efficient energy conversion and storage devices is one of the key challenges of both fundamental and applied research in energy *** sponges(MS)with low density,high nitrogen content,and high porosity have been used to design and obtain three‐dimensional porous carbon electrode *** importantly,they are inexpensive,environment‐friendly,and easy to *** have been many reports on the modification of carbonized MS and MS‐based composites for supercapacitor and lithium battery electrode *** this paper,recent studies on the fabrication of electrode materials using MS as raw materials have been mainly reviewed,including carbonation,doping activation,and composite modification of MS,and expectations for the development of porous carbon materials for energy storage as a reference with excellent performance,environment‐friendliness,and long life.

关键词： activation carbon materials composites electrode materials melamine sponges

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Ultrasonic-assisted pyrolyzation fabrication of reduced SnO2-x/g-C3N4 heterojunctions： Enhance photoelectro- chemical and photocatalytic activity under visible LED light irradiation

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Nano Research 2016年第7期9卷 1969-1982页

作者： Kai Li Xiaoqiao Zeng shanmin gao Lu Ma Qingyao Wang Hui Xu Zeyan Wang Baibiao Huang Ying Dai Jun Lu College of Chemistry and Materials Science Ludong University Yantai 264025 China Chemical Sciences and Engineering Division Argonne National Laboratory Argonne IL 60439 USA State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China X-Ray Science Division Argonne National Laboratory Argonne IL 60439 USA

Novel SnO2-x/g-C3N4 heterojunction nanocomposites composed of reduced SnO2 nanoparticles and exfoliated g-CBN4 nanosheets were prepared by a convenient one-step pyrolysis method. The structural, morphological, and optical properties of the as-prepared nanocomposites were characterized in detail, indicating that the aggregation of g-C3N4 nanosheets was prevented by small, well-dispersed SnO2_x nanoparticles. The ultraviolet-visible spectroscopy absorption bands of the nanocomposites were shifted to a longer wavelength region than those exhibited by pure SnO2 or g-CgN4. The charge transfer and recombination processes occurring in the nanocomposites were investigated using linear scan voltammetry and electrochemical impedance spectroscopy. Under 30-W visible-light-emitting diode irradiation, the heterojunction containing 27.4 wt.% SnO2-x exhibited the highest photocurrent density of 0.0468 ***-2, which is 33.43 and 5.64 times larger than that of pure SnO2 and g-C3N4, respectively. The photocatalytic activity of the heterojunction material was investigated by degrading rhodamine B under irradiation from the same light source. Kinetic study revealed a promising degradation rate constant of 0.0226 min^-1 for the heterojunction containing 27.4 wt.% SnO2-x, which is 32.28 and 5.79 times higher than that of pure SnO2 and g-C3N4, respectively. The enhanced photoelectrochemical and photocatalytic performances of the nanocomposite may be due to its appropriate SnO2x content and the compact structure of the junction between the SnO2-x nanoparticles and the g-C3N4 nanosheets, which inhibits the recombination of photogenerated electrons and holes.

关键词： reduced SnO2x-x g-C3N4 heterojunctions photoelectrochemical light-emitting diodesource

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Ti^(3+) self-doped TiO_2 photoelectrodes for photoelectrochemical water splitting and photoelectrocatalytic pollutant degradation

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Journal of Energy Chemistry 2016年第4期25卷 726-733页

作者： Chaoyi Wu Zhenggang gao shanmin gao Qingyao Wang Hui Xu Zeyan Wang Baibiao Huang Ying Dai College of Chemistry and Chemical Engineering Hunan University College of Chemistry and Materials Science Ludong University State Key Laboratory of Crystal Materials Shandong University

To improve the harvesting of visible light and reduce the recombination of photogenerated electrons and holes, Ti3+ self-doped TiO2 nanoparticles were synthesized and assembled into photoanodes with high visible light photoelectrochemical properties. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectra, electron resonance spectroscopy and energy dispersive X-ray spectra were used to characterize the structure, crystallinity, morphology and other properties of the obtained nanoparticles. UV-visible diffuse reflectance spectra showed that the Ti3+ self-doped TiO2 nanoparticles had a strong absorption between 400 and 800 nm. Moreover, when hydrothermal treatment time was prolonged to 22 h, the heterogeneous junction was formed between the anatase and rutile TiO2, where the anatase particles exposed highly active {001} facets. Under visible light irradiation, the Ti3+ self-doped TiO2 electrode exhibited an excellent photoelectrocatalytic degradation of rhodamine B (RhB) and water splitting performance. Intriguingly, by selecting an appropriate hydrothermal time, the high photoconversion efficiency of 1.16% was achieved. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.

关键词： Ti3+ self-doping Titanium Photoanode Water splitting Photoelectrocatalytic properties

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Facile synthesis of S-doped reduced TiO_(2-x) with enhanced visible-light photocatalytic performance

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Chinese Journal of Catalysis 2017年第5期38卷 821-830页

作者： Zhenyu Huang Zhenggang gao shanmin gao Qingyao Wang Zeyan Wang Baibiao Huang Ying Dai College of Chemistry and Materials Science Ludong University Yantai 264025 Shandong China State Key Lab of Crystal Materials Shandong University Jinan 250100 Shandong China

A different approach to synthesize visible‐light‐active sulfur(S)‐doped reduced titania(S‐TiO2‐x)using thiourea dioxide as both the S source and reductant was *** structure,morphology,and optical and electronic properties of the as‐prepared S‐TiO2‐x samples were examined by multiple techniques,such as X‐ray diffraction,transmission electron microscopy,X‐ray photoelectron spectroscopy,ultraviolet‐visible diffuse reflectance spectroscopy,Brunauer‐Emmett‐Teller and photocurrent measurements,and electrochemical impedance *** photocatalytic activity of S‐TiO2‐x was evaluated by photodegradation of organic Rhodamine B under visible‐light *** degradation rate of Rhodamine B by S‐TiO2‐x obtained by calcination was about31,2.5,and3.6times higher than those of pure TiO2,pristine TiO2‐x,and S‐doped TiO2,*** addition,the as‐prepared S‐TiO2‐x exhibited long‐term stable photocatalytic performance in the degradation of Rhodamine B under visible‐light *** report reveals a new approach to prepare stable and highly efficient solar light‐driven photocatalysts for water purification.

关键词： Ti3+ self‐doped Titania Sulfur doped Thiourea dioxide Visible light photocatalysis

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聚合物-无机纳米复合材料的制备及应用展望

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化工进展 1999年第6期18卷 37-38,52页

作者：高善民孙树声山东省海洋化工科学研究院寿光262737

介绍了聚合物-无机纳米复合材料的制备方法,对聚合物-无机纳米复合材料在化学化工及其他领域的应用价值进行了分析。

关键词：复合材料制备高聚物无机材料纳米材料

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Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料的制备及可见光催化性能

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环境化学 2016年第5期35卷 1020-1026页

作者：李凯魏停高政纲高善民鲁东大学化学与材料科学学院烟台264025

以低温退火制得的TiO_2纳米管和三聚氰胺为原料,经过一步煅烧制备Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料.采用热重分析(TGA)、X-射线衍射(XRD)、透射电子显微镜(TEM)、X-射线光电子能谱(XPS)和紫外-可见漫反射光谱(UV-Vis DRS)对Ti... 详细信息

以低温退火制得的TiO_2纳米管和三聚氰胺为原料,经过一步煅烧制备Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料.采用热重分析(TGA)、X-射线衍射(XRD)、透射电子显微镜(TEM)、X-射线光电子能谱(XPS)和紫外-可见漫反射光谱(UV-Vis DRS)对Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料的热稳定性、组成、结晶性、形貌、化学价态和光学性能等进行了表征.结果表明,将H_2Ti_3O_7预处理后再与三聚氰胺混合热处理,产物是Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料,而未经预处理的H_2Ti_3O_7与三聚氰胺混合后热处理得到的是Ti^(3+)自掺杂TiO_2纳米颗粒/g-C_3N_4复合材料.罗丹明B((RhB)水溶液为模拟废水,以300 W氙灯(λ>420 nm)为光源,研究了所得产物的可见光催化降解性能.结果表明,与纯的TiO_2和g-C_3N_4相比,Ti^(3+)自掺杂TiO_2纳米管/g-C_3N_4复合材料具有最佳的光催化降解性能,光催化降解80 min时,对RhB的降解率达98.4%.这得益于Ti^(3+)及TiO_(2-x)纳米管与g-C_3N_4构筑的异质结提高了材料对可见光的响应性能,加快了光生电子的传输和分离,降低了电子和空穴的复合几率.

关键词： Ti^3+自掺杂 TiO_2/g-C_3N_4异质结复合材料可见光催化

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Ti^(3+)自掺杂的纳米TiO_2的制备及其可见光催化性能

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催化学报 2015年第3期36卷 389-399页

作者：王潇彤李延敏刘新高善民黄柏标戴瑛鲁东大学化学与材料科学学院山东烟台264025 鲁东大学生命科学学院山东烟台264025 山东大学晶体材料国家重点实验室山东济南250100

以TiH2为Ti源,H2O2为氧化剂,首先通过表面氧化得到不同状态的前驱体凝胶,然后采用后续水热处理制备Ti3+自掺杂的纳米Ti O2.考察了前驱体凝胶状态及水热处理时间对材料结构和性能的影响.利用X射线衍射、透射电子显微镜、X射线光电子能谱... 详细信息

以TiH2为Ti源,H2O2为氧化剂,首先通过表面氧化得到不同状态的前驱体凝胶,然后采用后续水热处理制备Ti3+自掺杂的纳米Ti O2.考察了前驱体凝胶状态及水热处理时间对材料结构和性能的影响.利用X射线衍射、透射电子显微镜、X射线光电子能谱、电子顺磁共振波谱和紫外-可见漫反射光谱手段对样品进行表征.以次甲基蓝溶液为模拟废水评价样品的可见光催化降解性能.结果表明,与纯Ti O2相比,Ti3+的自掺杂使材料在可见光区有明显的吸收,并具有良好的可见光催化降解性能和循环使用性能.当采用黄色凝胶为前驱体时,在160°C下水热处理24 h所得样品在可见光下光催化降解次甲基蓝的反应速率常数(0.0439 min-1)是纯Ti O2的18.3倍.

关键词： Ti^3+自掺杂二氧化钛凝胶水热法可见光催化

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