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Reviews:Microwave-induced oxidation technology and its applications

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Progress in Natural Science:Materials International 2022年第6期32卷 665-673页

作者： Lintao Tian Guocheng Lv Meng Liu Xinyu Lei Wenxiu Rao libing liao Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences

Microwave-induced oxidation,as a new,efficient and green technology,is favored by researchers for its advantage of fast,high efficiency and no secondary *** is known as "green chemistry" for its characteristics of reducing energy consumption and *** representative results review the research progress of microwave-induced oxidation technology in the treatment of organic wastewater and volatile organic compounds,hydrogen production and combination with other technologies to induce oxidation,and the development direction and prospects of microwave-induced oxidation technology have been summarized in this paper.

关键词： Microwave-induced oxidation Organic wastewater Hydrogen production Advanced oxidation

Influence of dysprosium concentration on sensitivity of luminescent thermometers of phosphors Ca_(9)Tb(PO_(4))_(5)(SiO_(4))F_(2)

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Journal of Rare Earths 2021年第8期39卷 946-951页

作者： Jingxue Zhang Lefu Mei Yuanyuan Zhang Qingfeng Guo libing liao Haikun Liu Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing 100083China School of Materials Science and Engineering Dongguan University of TechnologyDongguan 523808China School of Gemmology China University of GeosciencesBeijing 100083China School of Chemical Engineering and Energy Technology Dongguan University of TechnologyDongguan 523808China

Tb^(3+),Dy^(3+)-co-doped Ca_(9)Tb_(x)Dy_(1-x)(PO_(4))_(5)(SiO_(4))F_(2) phosphors were prepared via high-temperature solidphase reaction method and the potential application in optical temperature measurements due to their color-tunable property was investigated in *** photoluminescence emission(PL) and photoluminescence excitation(PLE) spectra results show that the as-prepared phosphors exhibit both Tb^(3+) and Dy^(3+) emissions at 546 nm(^(5)D_(4)-^(7)F_(5) transition of Tb^(3+)) and 587 nm(^(4)F_(9/2)-^(6)H_(13/2) transition of Dy^(3+)) upon 376 nm excitation,*** addition,the fluorescence decay analysis shows that the lifetime of the Tb3+emission rapidly decreases,which confirms the energy transfer existence between Dy^(3+) and Tb^(3+).Under 376 nm excitation,the temperature dependence of the fluorescence intensity ratios for the dualmission bands peaked at 546 and 587 nm was studied in the temperature range from 303 to 573 *** results show that with the increase of Dy^(3+) concentration,the relative sensitivity first increases and then decreases,what’s more,the maximum relative sensitivity is 3.142×10^(-3)%/K for Ca_(9)Tb_(x)Dy_(1-x)(PO_(4))_(5)(SiO_(4))F_(2)(x=0.4).As a consequence,this preliminary study provides a novel method for exploring the novel thermo meters.

关键词： Temperature measurement Apatite Fluorescence intensity ratios Phosphor Thermometers Rare earths

Crystal structure refinement of suolunite and its significance to the cement techniques

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Chinese Science Bulletin 1999年第23期44卷 2125-2130页

作者： Zhesheng Ma Nicheng Shi Guodong Mou libing liao China Univ Geosci Xray Lab Beijing 100083 Peoples R China

Based on the crystal structure refinement, the arrangement and characteristics of the double tetrahedra of Si-O backbone of suolunite have been precisely clarified. The double tetrahedra are isolated, and the orientations of the closely adjacent double tetrahedra are perpendicular to each other, which results in the poor cleavage and high hardness of suolunite. Com-

关键词： suolunite crystal structure C-S-H gel cement manufacturing techniques.

Recent progress on lanthanide complexes/clay minerals hybrid luminescent materials

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Journal of Rare Earths 2022年第9期40卷 1360-1370,I0001页

作者： Ga Zhang Lefu Mei Junjie Ding Ke Su Qingfeng Guo Guocheng Lv libing liao Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of GeosciencesBeijing 100083China School of Gemmology China University of GeosciencesBeijing 100083China

The unique luminescent performance of lanthanide complexes/clay minerals hybrid materials has been fascinating many researchers for recent *** not only retains the excellent luminescent characteristics of lanthanide complexes but also improves the poor stability of the *** this article,we introduce the luminescence mechanism of lanthanide complexes and point out the necessity of their combination with clay *** the analysis of the structure and interlayer environment differences of 1:1-type and 2:1-type clay minerals,the intercalation methods(covalent grafting and ion exchange)appropriate for different clay minerals are summarized with *** on the luminescence characteristics of the hybrid materials,the applications of these materials as luminescent probes in recognition of specific metal cations and molecules,detection of pH value,and temperature are ***,the current problems in the preparation of lanthanide complexes/clay minerals hybrid luminescent materials and shortcomings that need improvement in their performance are analyzed,and the application prospect is forecast.

关键词： Luminescence Hybrid materials Lanthanide complexes Clay minerals Luminescent probes Rare earths

A novel blue-purple Ce^(3+) doped whitlockite phosphor:Synthesis,crystal structure,and photoluminescence properties

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Journal of Rare Earths 2021年第6期39卷 621-626,I0001页

作者： Yuli Yuan Haoran Lin Jing'ao Cao Qingfeng Guo Fei Xu libing liao Lefu Mei School of Gemology China University of GeosciencesBeijing 100083China Jewelry and Mineral Materials Laboratory of Experimental Teaching Demonstration Center Beijing 100083China School of Information Engineering China University of GeosciencesBeijing 100083China Academy of Arts&Design Tsinghua UniversityBeijing 100084China Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes National Laboratory of Mineral MaterialsSchool of Materials Sciences and TechnologyChina University of GeosciencesBeijing 100083China

At present,the rare earth(RE) ions doped phosphors have attracted more and more attention because of their excellent *** this paper,a series of novel blue-purple β-Ca_(3)(PO_(4))_(2):Ce^(3+) phosphors were synthesized by a high temperature solid phase *** X-ray diffraction(XRD),infrared spectrum,energy dispersive spectroscopy(EDS),scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),photoluminescence excitation and emission spectra were used to investigate the crystal structure,composition and the luminescent properties of the resulting *** phosphor shows a strong absorption in the ultraviolet *** the excitation of 269 nm,the phosphor emits a strong purple fluorescence ranging from 360 to 520 *** Ce^(3+) doping content is 0.07 mol,the strongest luminescence intensity is reached,and the concentration quenching mechanism is dipole-dipole(d-d)interaction for Ce^(3+) based on Dexter theory.

关键词： Whitlockite Ce^(3+) Phosphor β-Ca_(3)(PO_(4))_(2) Rare Earths

Point Groups and Single Forms of Quasicrystals with Eightfold and Twelvefold Symmetry

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Acta Geologica Sinica(English Edition) 1989年第1期63卷 39-43页

作者： Shi Nicheng and liao libing Beijing Graduate School, China University of Geosiences, Beijing Beijing Graduate School China University of Geosiences Beijing

This paper mainly deals with the point groups and single forms of octagonal quasicrystals and the description of one-dimensional quasilattice. The authors present a new sequence for describing the arrangement of quasiperiods in one-dimensional quasilattice. The first ten numbers of quasiperiods of this sequence are 1, 1, 2, 5, 12, 29, 70, 169, 408 and 985. The arrangement of quasiperiods in the first five steps are a, b, ab. babab and babababbabab. Seven p(?)nt groups and nine single forms for the octagonal system have been deduced, They are as follows: Point groups: 8.8m, 82, 8/m, 8/mmm, 8 and 82m; single forms: octagonal prism, dioctagonal prism. octagonal pyramid. dioctagonal pyramid. octagonal dipyramid, dioctagonal dipyramid, octagonal scalenohedron, dioctagonal scalenohedron and octagonal trapezohedron. Besides seven point groups and nine single forms for the dodecahegonal system have also been deduced.

关键词： Point Groups and Single Forms of Quasicrystals with Eightfold and Twelvefold Symmetry

Pt/Mo chalcogenide composite deriving from Pt-Mo_(6)S_8 by high temperature shock for enhanced HER performance

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Chinese Chemical Letters 2024年第3期35卷 497-501页

作者： Meng Liu Guocheng Lv Hao Liu Tianming Liu Lingchang Kong libing liao Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsSchool of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China School of Science China University of GeosciencesBeijing 100083China

Highly efficient catalysts for electrolysis of water are crucial to the development of hydrogen energy which is helpful to carbon ***,high temperature shock(HTS),with advantage of rapid speed,universality and scalable production,has been a promising method in synthesis of *** this paper,HST was used to treat low Pt loading Mo_(6)S_(8)for enhanced water splitting ***,the optimized MoS_(2)/MoO_(2)/Mo_(6)S_(8)nano-composite with low Pt mass loading(~4%)displays well hydrogen evolution reaction(HER)electrochemical *** overpotential is 124 mV to reach 10 mA/cm^(2)and the corresponding Tafel slope is 88 mV/dec in acidic *** mass activity is 6.2 mA/μg_(Pt)at-124 mV ***,which is almost 2 times relative to 20%Pt/***,it presents distinguished stability even after 2000 *** work will broaden the way of catalysts preparation and the application of hydrogen evolution.

关键词： HTS Low Pt loading Mo_(6)S_8 MoS_(2)/MoO_(2)/Mo_(6)S_8 composite HER

Effect of SPM Scanning Range on the Micromorphology Parameters

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International Journal of Minerals,Metallurgy and Materials 1998年第1期12卷 36-38页

作者： libing liao Suozai Li (School of materials Science and engineering, China University of Geosciences, Beijing 100083, China) School of Materials Science and Engineering China University of Geosciences Beijing 100083 China

The surface of a compact disk is analyzed by using SPM and the quantitative micromorphology analysissoftware SPMIAS developed by the author. Images at the same position but with different scanning ranges areobtained under the same experimental conditions. Micromorphology parameters are calculated and compared, andthe relationship between the changing of the scanning range and the changing of micromorphology parameters issummarized.

关键词： Scanning Probe Microscope(SPM) micromorphology micromorphology parameters

Development of SPM Quantitative Micromorphology Analysis Software

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International Journal of Minerals,Metallurgy and Materials 1999年第2期13卷 136-138页

作者： Suozai Li libing liao(School of Materials Science and Engineering, China University of Geosciences, Beijing 100083, China) School of Materials Science and Engineering China University of Geosciences Beijing 100083 China

Scanning Probe Microscope (SPM) has great advantages in quantitative micromorphology analysis because of its conveniencein obtaining micromorphology information of materials on nanometer or atomic scale under control of a computer. Based on an established SPM quantitative micromorphology analysis model, an SPM image analysis software Which can calculate both two- and three-dimensional micromorphology parameters is developed.

关键词： SPM quantitative micromorphology analysis software