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选用适宜的浮选质量在线监测方法可快速、准确地获取矿浆品位等浮选产品质量信息,从而对浮选状态作出必要的、及时的调整.为了指导相关从业人员科学、准确地选择和运用现有的浮选质量在线监测方法,在系统介绍了不同在线监测方法机理的基础上,逐一回顾了各方法在国内外的应用情况,并对各技术的特点、应用现状及优缺点进行了比较,指出需要结合生产实际环境和精度要求选用合适的监测技术.最后对浮选质量在线监测方法的发展趋势进行了展望.在线监测方法的研发将进一步推动自动化技术在选矿领域的应用,达到稳定生产指标,提高生产效率的目的.
Keyword ：
X荧光品位分析 X荧光品位分析 品位 品位 在线监测 在线监测 拉曼光谱 拉曼光谱 泡沫图像 泡沫图像 浮选 浮选
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| GB/T 7714 | 柳方正 , 陈享享 , 张朝阳 et al. 浮选质量在线监测方法研究现状与进展 [J]. | 金属矿山 , 2025 , (3) : 210-218 . |
| MLA | 柳方正 et al. "浮选质量在线监测方法研究现状与进展" . | 金属矿山 3 (2025) : 210-218 . |
| APA | 柳方正 , 陈享享 , 张朝阳 , 欧阳云飞 , 邱璐 , 黄世毅 et al. 浮选质量在线监测方法研究现状与进展 . | 金属矿山 , 2025 , (3) , 210-218 . |
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随着全球能源需求的增长和环境问题的加剧,开发新型高性能气体传感器变得尤为迫切.生物质炭材料是由生物质原料经过预碳化和活化处理获得,具有独特的孔隙结构、大的比表面积、丰富的表面活性官能团和活性位点,在气体传感检测领域具有巨大的应用潜力.本文按照生物质炭的主要来源对生物质进行了分类(植物基、动物基和微生物基)以及 4种生物质炭材料的常见制备方法(水热炭化法、活化法、模板法和微波热解法).本文重点讨论了生物质炭材料在半导体型气体传感器和非金属氧化物主导型气体传感器的最新研究进展,包括作为气敏材料在检测各类气体方面的应用.最后,分析了生物质炭基气体传感器目前需要解决的问题,为拓宽该类传感器的实际应用提出了研发的思路.
Keyword ：
传感器 传感器 半导体 半导体 气敏 气敏 炭材料 炭材料 生物质 生物质 非金属氧化物 非金属氧化物
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| GB/T 7714 | 邱璐 , 陈享享 , 刘天豪 et al. 生物质炭材料在气体传感检测中的应用进展 [J]. | 复合材料学报 , 2025 , 42 (4) : 1722-1738 . |
| MLA | 邱璐 et al. "生物质炭材料在气体传感检测中的应用进展" . | 复合材料学报 42 . 4 (2025) : 1722-1738 . |
| APA | 邱璐 , 陈享享 , 刘天豪 , 柳方正 , 欧阳云飞 , 黄世毅 et al. 生物质炭材料在气体传感检测中的应用进展 . | 复合材料学报 , 2025 , 42 (4) , 1722-1738 . |
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In this study, the adsorption behavior of gallium ions on a synthesized hydroxamic acid resin from sulfuric acid solution was investigated, aiming to recover Ga directly from pressure leaching solution in zinc hydrometallurgical plant. Hydroxamic acid chelating resin (HA-PDR) was prepared by introducing hydroxamic acid groups into the pre-made polyacrylate resin (PDR) with methyl ester group through hydroxylamine reaction. Polyacrylate-divinylbenzene hydroxamic resins with a nitrogen content of up to 3.85 % were obtained at a divinylbenzene (DVB) content of 13 % and an optimal raw material ratio of NH2OH & sdot;HCl: NaOH: -CH3 = 4:4.5:1 (molar ratio). The obtained materials was characterized using FTIR, XPS and SEM to verify the successful introduction of hydroxamic acid groups. The results of adsorption experiments showed that the adsorption capacity of 27.65 mg/g could be obtained with a chemical, multilayered, and heterogeneous adsorption process, and film diffusion and intra-particle diffusion rate controlled mainly the adsorption efficiency. It has been proven that polyacrylate-divinylbenzene hydroxamic resins has extremely high adsorption selectivity for gallium in sulfuric acid solution, and the desorption effect is obvious, which can be applied promisingly in the industrial development of gallium extraction technology from zinc leaching residue in sulfuric acid system.
Keyword ：
Adsorption Adsorption Gallium Gallium Hydroxamic resins Hydroxamic resins Polyacrylate-divinylbenzene Polyacrylate-divinylbenzene Sulfuric acid Sulfuric acid
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| GB/T 7714 | Li, Yujie , Chen, Xiangxiang , Guo, Bao et al. Synthesis of polyacrylate-divinylbenzene hydroxamic resins and its gallium adsorption performance in sulfuric acid solution [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 60 . |
| MLA | Li, Yujie et al. "Synthesis of polyacrylate-divinylbenzene hydroxamic resins and its gallium adsorption performance in sulfuric acid solution" . | JOURNAL OF WATER PROCESS ENGINEERING 60 (2024) . |
| APA | Li, Yujie , Chen, Xiangxiang , Guo, Bao , Dai, Zilin , Kong, Zhenxing , Li, Fangxu et al. Synthesis of polyacrylate-divinylbenzene hydroxamic resins and its gallium adsorption performance in sulfuric acid solution . | JOURNAL OF WATER PROCESS ENGINEERING , 2024 , 60 . |
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| GB/T 7714 | Zhou, Pengfei , Wang, Fei , Shen, Yanbai et al. Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water (vol 14, 216, 2024) [J]. | CATALYSTS , 2024 , 14 (5) . |
| MLA | Zhou, Pengfei et al. "Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water (vol 14, 216, 2024)" . | CATALYSTS 14 . 5 (2024) . |
| APA | Zhou, Pengfei , Wang, Fei , Shen, Yanbai , Duan, Xinhui , Zhao, Sikai , Chen, Xiangxiang et al. Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water (vol 14, 216, 2024) . | CATALYSTS , 2024 , 14 (5) . |
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易选硫化锌矿资源因大量开发而日趋枯竭,以菱锌矿为代表的氧化锌矿资源的高效开发利用愈发重要.菱锌矿与白云石同属碳酸盐类矿物,晶体结构相似,表面性质相近,浮选分离困难.通过浮选试验,系统研究了以油酸钠、十八胺、苯甲羟肟酸、水杨羟肟酸及其组合为捕收剂,四聚磷酸钠和氯化钙作为组合抑制剂条件下,菱锌矿与白云石的浮选特性.结果表明,单一捕收剂体系中,菱锌矿与白云石难以有效分选;水杨羟肟酸和油酸钠的捕收剂组合具有良好的协同效应,四聚磷酸钠与氯化钙的抑制剂组合具有较高的选择性,可实现菱锌矿与白云石的高效分选.采用晶体化学模拟计算、动电位分析、捕收剂吸附量分析等手段,对浮选结果与作用机理进行了阐释与验证.
Keyword ：
浮选 浮选 白云石 白云石 组合药剂 组合药剂 菱锌矿 菱锌矿
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| GB/T 7714 | 白俊智 , 陈逸凡 , 陈享享 et al. 组合药剂提升菱锌矿与白云石分选效果的机理研究 [J]. | 金属矿山 , 2024 , (9) : 84-91 . |
| MLA | 白俊智 et al. "组合药剂提升菱锌矿与白云石分选效果的机理研究" . | 金属矿山 9 (2024) : 84-91 . |
| APA | 白俊智 , 陈逸凡 , 陈享享 , 印万忠 , 李欢 , 刘泽洪 . 组合药剂提升菱锌矿与白云石分选效果的机理研究 . | 金属矿山 , 2024 , (9) , 84-91 . |
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This study investigates the ethanol gas-sensing mechanisms of ZnO nanocrystals with distinct morphologies, synthesized via a hydrothermal method using various alkali sources. Significant differences in the gas-sensing performance and morphology of ZnO samples synthesized with ammonium carbonate (Na2CO3), hexamethylenetetramine (HMTA), ammonia solution (NH3H2O), and sodium hydroxide (NaOH) were observed. ZnO were confirmed to be impurity-free through XRD analysis, and their morphological features were characterized by SEM. TEM, XPS, and FTIR were employed to further analyze the crystal structure and binding energy of ZnO. To elucidate the underlying mechanisms, density functional theory (DFT) calculations combined with electron depletion layer theory were applied to assess charge transfer processes and identify the most sensitive ZnO crystal planes for ethanol detection. Experimental gas-sensing tests, conducted across 5-1000 ppm ethanol concentrations within a 150-350 degrees C range, showed that ZnO prepared with Na2CO3, HMTA, and NaOH was responsive at high ethanol concentrations as low as 100 degrees C, while ZnO synthesized with ammonia required 250 degrees C to exhibit sensitivity. All ZnO samples demonstrated excellent recovery at low concentrations at 250 degrees C. By integrating experimental findings with theoretical insights, this study provides a comprehensive understanding of ethanol gas-sensing mechanisms in ZnO, highlighting the role of crystal plane engineering and charge transfer dynamics as critical factors influencing gas response.
Keyword ：
DFT study DFT study ethanoll ethanoll gas sensor gas sensor ZnO ZnO
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| GB/T 7714 | Liao, Yinying , Qiu, Lu , Ouyang, Yunfei et al. Effect of Alkali Source on Crystal Regulation and Ethanol Gas Sensing Properties of Nano-ZnO [J]. | SENSORS , 2024 , 24 (23) . |
| MLA | Liao, Yinying et al. "Effect of Alkali Source on Crystal Regulation and Ethanol Gas Sensing Properties of Nano-ZnO" . | SENSORS 24 . 23 (2024) . |
| APA | Liao, Yinying , Qiu, Lu , Ouyang, Yunfei , Feng, Dayang , Huang, Shiyi , Zhang, Zhaoyang et al. Effect of Alkali Source on Crystal Regulation and Ethanol Gas Sensing Properties of Nano-ZnO . | SENSORS , 2024 , 24 (23) . |
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The CuO nanorods were in-situ grown on sensing electrodes by a chemical bath method for the detection of volatile organic compounds (VOCs). The synthesized material was characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FTIR). The CuO nanorods, with lengths of 100-150 nm and diameters of 35-55 nm, were uniformly formed into a thin film on the electrode surface, with a thickness of approximately 1 mu m. The gas test results demonstrated that the sensor achieved a peak response of 1.32 for formaldehyde at 200 degrees C, and a response of 1.92 for ethanol at 175 degrees C. At a concentration of 50 ppm, ethanol and formaldehyde at an operating temperature of 200 degrees C exhibit short response/recovery times of 28 s/ 48 s for ethanol and 45 s/62 s for methanol, respectively, coupled with good reproducibility. Moreover, the sensor exhibited a power-law response to varying gas concentrations and showcased superior selectivity in the VOCs gas detection. This in-situ growing CuO of our work provides a facial gas sensing material fabricated method.
Keyword ：
CuO CuO Gas sensor Gas sensor In-situ growing In-situ growing Nanorods Nanorods VOCs VOCs
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| GB/T 7714 | Chen, Xiangxiang , Huang, Shiyi , Zhang, Zhaoyang et al. In-situ growth of CuO nanorods on sensing electrodes and their gas sensing properties of VOCs [J]. | CERAMICS INTERNATIONAL , 2024 , 50 (23) : 49915-49922 . |
| MLA | Chen, Xiangxiang et al. "In-situ growth of CuO nanorods on sensing electrodes and their gas sensing properties of VOCs" . | CERAMICS INTERNATIONAL 50 . 23 (2024) : 49915-49922 . |
| APA | Chen, Xiangxiang , Huang, Shiyi , Zhang, Zhaoyang , Qiu, Lu , Liu, Fangzheng , Liu, Tianhao et al. In-situ growth of CuO nanorods on sensing electrodes and their gas sensing properties of VOCs . | CERAMICS INTERNATIONAL , 2024 , 50 (23) , 49915-49922 . |
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One of the most challenging problems for people around the world is the lack of clean water. In the past few decades, the massive discharge of emerging organic pollutants (EOPs) into natural water bodies has exacerbated this crisis. Considerable research efforts have been devoted to removing these EOPs due to their biotoxicity at low concentrations. Heterogeneous photocatalysis via coupling clay minerals with nanostructured semiconductors has proven to be an economical, efficient, and environmentally friendly technology for the elimination of EOPs in drinking water and watershed water. Natural zeolite minerals (especially clinoptilolites) are regarded as appropriate supports for semiconductor-based photocatalysts due to their characteristics of having a low cost, environmental friendliness, easy availability, co-catalysis, etc. This review summarizes the latest research on clinoptilolites used as supports to prepare binary and ternary metal oxide or sulfide semiconductor-based hybrid photocatalysts. Various preparation methods of the composite photocatalysts and their degradation efficiencies for the target contaminants are introduced. It is found that the good catalytic activity of the composite photocatalyst could be attributed to the synergistic effect of combining the clinoptilolite adsorbent with the semiconductor catalyst in the heterogeneous system, which could endow the composites with an excellent adsorption capacity and produce more e-/h+ pairs under suitable light irradiation. Finally, we highlight the serious threat of EOPs to the ecological environment and propose the current challenges and limitations, before putting the zeolite mineral composite photocatalysts into practice. The present work would provide a theoretical basis and scientific support for the application of zeolite-based photocatalysts for degrading EOPs.
Keyword ：
composite photocatalysts composite photocatalysts emerging organic pollutants emerging organic pollutants semiconductor semiconductor zeolite mineral (cliloptilolite) zeolite mineral (cliloptilolite)
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| GB/T 7714 | Zhou, Pengfei , Wang, Fei , Shen, Yanbai et al. Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water [J]. | CATALYSTS , 2024 , 14 (4) . |
| MLA | Zhou, Pengfei et al. "Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water" . | CATALYSTS 14 . 4 (2024) . |
| APA | Zhou, Pengfei , Wang, Fei , Shen, Yanbai , Duan, Xinhui , Zhao, Sikai , Chen, Xiangxiang et al. Removal of Emerging Organic Pollutants by Zeolite Mineral (Clinoptilolite) Composite Photocatalysts in Drinking Water and Watershed Water . | CATALYSTS , 2024 , 14 (4) . |
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Sulfurous iron minerals with recovery value are contained in a lead-zinc tailing in Fujian Province, China. However, the sulfurous iron minerals are depressed by lime in the early lead-zinc flotation, therefore it is necessary to use appropriate activators to improve the floatability of the mineral. The property of flotation foam can directly reflect the quality of the flotation index. The addition of activators can also change the properties of flotation foam. In this paper, an effective activator combination was selected through actual mine tests and foam analysis. The mineralogical study of the lead-zinc tailing was first carried out through chemical multi-element analysis and XRD. The flotation tests on the recovery of sulfurous iron ore by different activators were carried out. Finally, a foam scanning analyzer was used to test and analyze the frothing performance and froth stability of the slurry under different activation conditions. The results showed that the dispersion-activation flotation and dispersion-combined activation flotation can help to improve the frothing performance of the slurry and improve the flotation indexes. At the same time, the enhanced activated flotation can also reduce the froth stability indexes (FSI) to less than 20 s, and the reduction of the froth stability can help to improve the flotation recovery. For each activation flotation process that achieves the best flotation index, the frothing performance and foam stability of the pulp is close to that of the flotation tests index.
Keyword ：
enhanced activation enhanced activation flotation flotation froth properties froth properties pyrite pyrite pyrrhotite pyrrhotite
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| GB/T 7714 | Chen, Xiangxiang , Zhang, Zhaoyang , Qiang, Wen et al. Effect of activator on foam properties in sulfurous iron ore flotation [J]. | PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING , 2024 , 60 (5) . |
| MLA | Chen, Xiangxiang et al. "Effect of activator on foam properties in sulfurous iron ore flotation" . | PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING 60 . 5 (2024) . |
| APA | Chen, Xiangxiang , Zhang, Zhaoyang , Qiang, Wen , Huang, Shiyi , Liu, Fangzheng , Qiu, Lu et al. Effect of activator on foam properties in sulfurous iron ore flotation . | PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING , 2024 , 60 (5) . |
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以煤基炭为硬模板、醋酸锌为锌源,采用高温焙烧法制备了具有优异晶体结构和孔隙特性的ZnO纳米材料,探究了基于该ZnO材料的气体传感器对乙醇的气敏性能.结果表明:在工作温度 200℃时,ZnO传感器对低质量分数乙醇气体具有较高灵敏度,响应值可达 5.25;ZnO传感器对质量分数为 1×10-5乙醇气体的响应时间和恢复时间分别为 10s和 6 s;ZnO传感器灵敏度与乙醇气体质量分数呈线性关系,检测下限可达 1×10-7;ZnO传感器对醋酸、甲醇、氨水、甲烷等气体的灵敏度较低,对乙醇气体灵敏度高,具有优异的气体检测选择性.
Keyword ：
乙醇 乙醇 气体传感器 气体传感器 气敏性能 气敏性能 气敏材料 气敏材料 氧化锌 氧化锌 煤基炭 煤基炭 硬模板法 硬模板法
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| GB/T 7714 | 王驰骋 , 刘天豪 , 吴浩宇 et al. 煤基炭硬模板制备ZnO气敏材料及其对低质量分数乙醇气体的检测 [J]. | 矿冶工程 , 2024 , 44 (6) : 129-133 . |
| MLA | 王驰骋 et al. "煤基炭硬模板制备ZnO气敏材料及其对低质量分数乙醇气体的检测" . | 矿冶工程 44 . 6 (2024) : 129-133 . |
| APA | 王驰骋 , 刘天豪 , 吴浩宇 , 袁浩东 , 陈享享 . 煤基炭硬模板制备ZnO气敏材料及其对低质量分数乙醇气体的检测 . | 矿冶工程 , 2024 , 44 (6) , 129-133 . |
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