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Environmental hazards and comprehensive utilization of solid waste coal gangue

Progress in Natural Science:Materials International 2024年第2期34卷 223-239页

作者： Qinwen Zheng Yi Zhou Xin Liu Meng Liu libing liao Guocheng Lv 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 Wastes National Laboratory of Mineral Materials School of Material Sciences and Technology China University of Geosciences

Coal mining and washing is accompanied by the production of large amounts of coal gangue, which exerts a notable influence on the natural environment. However, as a form of solid waste, coal gangue exhibits a wide range of potential applications in the field of recycling. Nowadays, 'the utilization rate and quality of coal gangue are inadequate, and the disposal capacity and scale of coal gangue obviously cannot meet the current global lowcarbon environmental protection requirements. The paper presents an overview of the present state of coal gangue production and utilization, and investigates the environmental impact caused by the practice of stacking coal gangue. We emphasize the current research status of gangue in various high-value application fields,including environmental materials, agricultural production, construction materials, recovery and extraction of valuable elements, and energy generation. It highlights the significance of pre-treatment methods like activation,modification, and innocuousness for the comprehensive utilization of gangue. Additionally, we briefly introduce and discusses the future directions of research and development in this area. Nevertheless, with regard to the environmental impact of secondary contamination and the efficiency of gangue utilization, there remain numerous obstacles and unresolved matters that merit further investigation. It is believed that this review can offer valuable insights into the utilization of gangue development methods, and expedite the successful implementation and practical application of large-scale treatment and disposal of solid waste.

关键词： Coal gangue Comprehensive utilization Environmental effect Mineral material Solid waste recycling

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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 neutralization.Recently,high temperature shock(HTS),with advantage of rapid speed,universality and scalable production,has been a promising method in synthesis of nanomaterials.In this paper,HST was used to treat low Pt loading Mo_(6)S_(8)for enhanced water splitting performance.Impressively,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 performance.The overpotential is 124 mV to reach 10 mA/cm^(2)and the corresponding Tafel slope is 88 mV/dec in acidic electrolyte.Its mass activity is 6.2 mA/μg_(Pt)at-124 mV vs.RHE,which is almost 2 times relative to 20%Pt/C.Moreover,it presents distinguished stability even after 2000 cycles.This 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

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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 pollution.It is known as "green chemistry" for its characteristics of reducing energy consumption and pollution.The 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

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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 decades.It not only retains the excellent luminescent characteristics of lanthanide complexes but also improves the poor stability of the complexes.In this article,we introduce the luminescence mechanism of lanthanide complexes and point out the necessity of their combination with clay minerals.After 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 examples.Based 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 reviewed.Finally,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

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Chevrel phase: A review of its crystal structure and electrochemical properties

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Progress in Natural Science:Materials International 2023年第1期33卷 8-15页

作者： Meng Liu Guocheng Lv Tianming Liu Hao Liu Lingchang Kong Lintao Tian Wenxiu Rao Yuxin Li libing liao Juchen Guo 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 Wastes National Laboratory of Mineral Materials School of Materials Science and Technology China University of Geosciences(Beijing) School of Science China University of Geosciences Materials Science and Engineering Program University of California-Riverside Department of Chemical and Environmental Engineering University of California – Riverside

Chevrel phase compounds have attracted increasing attention as electrochemical energy storage materials and electro-catalysts. Benefiting from their unique crystal structure, Chevrel phase compounds can not only function as the host structures for reversible intercalation of a broad range of cations, but also exhibit high catalytic activity in electrochemical reduction reactions. Here we provide an overview of recent progress in the development of Chevrel phase materials including new understanding of structural features, synthetic methods, and electrochemical properties. A brief conclusion and perspectives on the future development of Chevrel phase materials are also provided.

关键词： Chevrel phase Electrochemical properties Energy storage Electro-catalysis

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盱眙、明光、临泽坡缕石的八面体阳离子占位及对其性能的影响

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地质学报 2024年第3期98卷 876-888页

作者：廖立兵张培均刘昊中国地质大学(北京)材料科学与工程学院北京100083 中国地质大学(北京)数理学院北京100083

坡缕石是一种2:1型链层状结构含水富镁铝硅酸盐矿物,具有重要的资源和材料属性。不同成因、产状坡缕石八面体中类质同象替代有很大差别,而八面体类质同象替代对坡缕石性能的影响未见研究报道。本文以中国最具代表性的安徽明光、江苏盱... 详细信息

坡缕石是一种2:1型链层状结构含水富镁铝硅酸盐矿物,具有重要的资源和材料属性。不同成因、产状坡缕石八面体中类质同象替代有很大差别,而八面体类质同象替代对坡缕石性能的影响未见研究报道。本文以中国最具代表性的安徽明光、江苏盱眙、甘肃临泽坡缕石为研究对象,研究了三种坡缕石的Al、Mg、Fe含量及在八面体中的占位,并探讨了八面体的Al、Mg、Fe占位对坡缕石中水的种类和含量、表面电位和酸位以及对Pb^(2+)、Cd^(2+)吸附性能的影响。结果表明:明光坡缕石相对富镁,八面体主要被Mg^(2+)占据,具有三八面体特征;盱眙、临泽坡缕石相对富铝、铁,八面体主要被Al^(3+)占据,表现出更多的二八面体特征。盱眙坡缕石由于M1位置空位较多,结构水含量较低;坡缕石类质同象替代对Zeta电位影响不大;具有二八面体特征的盱眙、临泽坡缕石由于八面体中Al含量较高,酸位较多,催化性能较好。在重金属吸附实验中,明光坡缕石对Cd^(2+)的吸附效果最好,盱眙坡缕石对Pb^(2+)的吸附效果最好,临泽坡缕石吸附性能较差。本文可为坡缕石的改性和应用提供指导和参考。

关键词：坡缕石类质同象替代八面体占位吸附性能

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HvWRKY2 acts as an immunity suppressor and targets HvCEBiP to regulate powdery mildew resistance in barley

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The Crop Journal 2023年第1期11卷 99-107页

作者： Deshui Yu Renchun Fan Ling Zhang Pengya Xue libing liao Meizhen Hu Yanjun Cheng Jine Li Ting Qi Shaojuan Jing Qiuyun Wang Arvind Bhatt Qian-Hua Shen Lushan Botanical Garden Chinese Academy of ScienceJiujiang 332900JiangxiChina State Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesInnovation Academy for Seed DesignBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China

Plants use a sophisticated immune system to perceive pathogen infection and activate immune responses in a tightly controlled manner.In barley,Hv WRKY2 acts as a repressor in barley disease resistance to the powdery mildew fungus,Blumeria graminis f.***.hordei(Bgh).However,the molecular features of Hv WRKY2 in its DNA-binding and repressor functions,as well as its target genes,are uncharacterized.We show that the W-box binding of Hv WRKY2 requires an intact WRKY domain and an upstream sequence of~75 amino acids,and the Hv WRKY2 W-box binding activity is linked to its repressor function in disease resistance.Chromatin immunoprecipitation(ChIP)-seq analysis identified HvCEBiP,a putative chitin receptor gene,as a target gene of Hv WRKY2 in overexpressing transgenic barley plants.ChIP-qPCR and Electrophoretic Mobility Shift Assay(EMSA)verified the direct binding of Hv WRKY2 to a W-boxcontaining sequence in the HvCEBiP promoter.Hv CEBiP positively regulates resistance against Bgh in barley.Our findings suggest that Hv WRKY2 represses barley basal immunity by directly targeting pathogen-associated molecular pattern(PAMP)recognition receptor genes,suggesting that Hv CEBiP and likely chitin signaling function in barley PAMP-triggered immune responses to Bgh infection.

关键词： HvWRKY2 Basal immunity Chromatin immunoprecipitation(ChIP) HvCEBiP

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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 detail.The 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,respectively.In 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 K.The 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

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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.

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Slr0151 in Synechocystis sp. PCC 6803 is required for efficient repair of photosystem Ⅱ under high-light condition

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Journal of Integrative Plant Biology 2014年第12期56卷 1136-1150页

作者： Haomeng Yang libing liao Tingting Bo Lei Zhao Xuwu Sun Xuefeng Lu Birgitta Norling Fang Huang Key Laboratory of Photobiology Institute of Botany the Chinese Academy of Sciences University of the Chinese Academy of Sciences Qingdao Institute of Bioenergy and Bioprocess Technology the Chinese Academy of Sciences School of Biological Sciences Nanyang Technological University

Cyanobacteria are ancient photosynthetic prokareyotes that have adapted successfully to adverse environments including high-light irradiation. Although it is known that the repair of photodamaged photosystem Ⅱ（PSⅡ） in the organisms is a highly regulated process, our knowledge of the molecular components that regulate each step of the process is limited.We have previously identified a hypothetical protein Slr0151 in the membrane fractions of cyanobacterium Synechocystis sp.PCC 6803. Here, we report that Slr0151 is involved in PSⅡ repair of the organism. We generated a mutant strain（Dslr0151）lacking the protein Slr0151 and analyzed its characteristics under normal and high-light conditions. Targeted deletion of slr0151 resulted in decreased PSⅡ activity in Synechocystis. Moreover,the mutant exhibited increased photoinhibition due to impairment of PSⅡ repair under high-light condition. Further analysis using in vivo radioactive labeling and 2-D blue native/sodium dodecylsulfate polyacrylamide gel electrophoresis indicated that the PSⅡ repair cycle was hindered at the levels of D1 synthesis and disassembly and/or assembly of PSⅡ in the mutant. Protein interaction assays demonstrated that Slr0151 interacts with D1 and CP43 proteins. Taken together,these results indicate that Slr0151 plays an important role in regulating PSⅡ repair in the organism under high-light stress condition.

关键词： Cyanobacteria membrane protein photosystem Ⅱ repair Slr0151 Synechocystis

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