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摘要 :
一种精确提高贵金属催化氧化CO稳定性及其制备方法,属于催化剂领域。采用静电吸附‑共沉淀‑浸渍方法结合的方式。采用磷钼酸对TiO2改性,将将Pt的前驱体溶液倒入到含有改性TiO2载体的容器中60℃‑80℃搅拌,然后烘干;将烘干的催化剂研成粉末后放入马弗炉400℃‑600℃煅烧。所得催化剂对SO2和H2O的抗性好坏决定了催化剂的稳定性。
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GB/T 7714 | 李坚 , 何俊达 , 于泽辉 et al. 一种精确提高贵金属催化氧化CO稳定性及其制备方法 : CN202310847421.7[P]. | 2023-07-11 . |
MLA | 李坚 et al. "一种精确提高贵金属催化氧化CO稳定性及其制备方法" : CN202310847421.7. | 2023-07-11 . |
APA | 李坚 , 何俊达 , 于泽辉 , 蔡建宇 , 苑靳钰 . 一种精确提高贵金属催化氧化CO稳定性及其制备方法 : CN202310847421.7. | 2023-07-11 . |
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摘要 :
一种波纹板式玻璃纤维材料负载钒钼钛低温催化剂的制备方法,属于催化剂领域。制备方法:1)配置催化剂浆液,将特制溶剂(主要成分为硅溶胶、硫酸铝和聚乙二醇400)与钒钼钛催化剂粉体、水混合,搅拌均匀;采用浸渍法将波纹板单元置于浆液中处理;4)浸渍后完成后,控出负载催化剂块体,气泵吹扫清理波纹板表面及孔隙内的多余浆液,干燥后完成整体式催化剂制备。采用该浸渍方式制备的波纹板式催化剂具有较好的粉体上载率,且整体质量较轻,降低了成本,减轻了维护压力。进一步煅烧处理后,该装置具有较高的低温活性,适用于160~320℃工厂烟气脱硝。
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GB/T 7714 | 李坚 , 王若楠 , 张艳丽 et al. 一种波纹板式玻璃纤维材料负载钒钼钛低温催化剂的制备方法 : CN202310309268.2[P]. | 2023-03-27 . |
MLA | 李坚 et al. "一种波纹板式玻璃纤维材料负载钒钼钛低温催化剂的制备方法" : CN202310309268.2. | 2023-03-27 . |
APA | 李坚 , 王若楠 , 张艳丽 , 樊星 . 一种波纹板式玻璃纤维材料负载钒钼钛低温催化剂的制备方法 : CN202310309268.2. | 2023-03-27 . |
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摘要 :
本申请实施例提出了一种负载PDMS的整体式圆孔填料、制备方法及应用,制备方法包括将PDMS主剂与固化剂按照比例混合形成混合液并将整体式填料部分浸入其中,以使混合液流经填料的表层,同时吹扫填料的孔道;整体式的填料包括多个圆形塑料管;多个圆形塑料管形成蜂窝式排列结构;将完成涂布后的填料真空消泡后高温固化,成型后取出,恢复至常温。本申请中负载PDMS的整体式圆孔填料具有较好的传质效率以及较强的耐生物侵蚀与强酸腐蚀,可满足低浓度负荷条件下对产酸废气的去除需求。
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GB/T 7714 | 李坚 , 康佳 , 吕瑞彤 et al. 一种负载PDMS的整体式圆孔填料、制备方法及应用 : CN202310451035.6[P]. | 2023-04-24 . |
MLA | 李坚 et al. "一种负载PDMS的整体式圆孔填料、制备方法及应用" : CN202310451035.6. | 2023-04-24 . |
APA | 李坚 , 康佳 , 吕瑞彤 , 杨景素 . 一种负载PDMS的整体式圆孔填料、制备方法及应用 : CN202310451035.6. | 2023-04-24 . |
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摘要 :
This paper presents an up-to-date overview of the various advanced materials as adsorbent used in the recovery of precious metals from wastewater. The precious metals concentrated here include gold, silver, palladium and platinum, whose recovery is interesting mainly due to their vast industrial applications and high market prices. Among various methods, adsorption approach is one of the most efficient techniques for the recovery of precious metal ions from aqueous solutions. There are a number of absorbents such as carbon materials, metal-organic frameworks (MOFs), biopolymers, silicas, resins, and transition-metal sulfides, which have been developed and explored to efficient recovery of precious metal ions from wastewater. Thermodynamics and kinetics were further discussed for exploring the adsorption mechanism of precious metal ions in these advanced materials. It was found that the adsorption process of these metals is mostly spontaneous (Delta G < 0) and endothermic (Delta H > 0) in nature. This review would contribute to the development of advanced materials for recovery of precious metals from secondary sources such as wastewater.
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GB/T 7714 | Guo, Jiaqi , Wu, Yufeng , Wang, Zhihui et al. Review: adsorbents for the recovery of precious metals from wastewater [J]. | JOURNAL OF MATERIALS SCIENCE , 2022 , 57 (24) : 10886-10911 . |
MLA | Guo, Jiaqi et al. "Review: adsorbents for the recovery of precious metals from wastewater" . | JOURNAL OF MATERIALS SCIENCE 57 . 24 (2022) : 10886-10911 . |
APA | Guo, Jiaqi , Wu, Yufeng , Wang, Zhihui , Yu, Jiamei , Li, Jian-Rong . Review: adsorbents for the recovery of precious metals from wastewater . | JOURNAL OF MATERIALS SCIENCE , 2022 , 57 (24) , 10886-10911 . |
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摘要 :
The separation of ethane from ethylene is an important but challenging process in the chemical industry because of their similar physicochemical properties. Generally, the adsorbents for C2H6/C2H4 separation require an appropriate and relatively small aperture. Herein, we report two dynamic pillar layered metal-organic frameworks (MOFs) BUT-111 and BUT-112 with isomorphic frameworks but different degrees of interpenetration for efficient C2H4 purification. The dynamic behavior makes both the activated MOFs exhibit ultramicropores and reversed order adsorption behavior for C2H6 and C2H4, which could obtain highly purified C2H4 in one step from the C2H6/C2H4 mixture. BUT 111 and BUT-112 could work in a wide temperature range, and with the decrease in temperature, the C2H6/C2H4 selectivity would increase. Moreover, the degree of interpenetration could be well controlled by the synthetic temperature, and the increase in the interpenetration degree of BUT-112 enhanced the C2H4 purification effectively.
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GB/T 7714 | Li, Yi , Xie, Yabo , Zhang, Xin et al. Enhancing Ethane/Ethylene Separation Performance in Two Dynamic MOFs by Regulating Temperature-Controlled Structural Interpenetration [J]. | INORGANIC CHEMISTRY , 2022 , 62 (12) : 4762-4769 . |
MLA | Li, Yi et al. "Enhancing Ethane/Ethylene Separation Performance in Two Dynamic MOFs by Regulating Temperature-Controlled Structural Interpenetration" . | INORGANIC CHEMISTRY 62 . 12 (2022) : 4762-4769 . |
APA | Li, Yi , Xie, Yabo , Zhang, Xin , Velasco, Ever , Chen, Qiang , Li, Jian-Rong . Enhancing Ethane/Ethylene Separation Performance in Two Dynamic MOFs by Regulating Temperature-Controlled Structural Interpenetration . | INORGANIC CHEMISTRY , 2022 , 62 (12) , 4762-4769 . |
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摘要 :
The illegal usage of antibiotics as veterinary drugs is an increasing threat for human health. The specific sensing of antibiotics with different toxicity levels is of high challenge, and mainly relies on expensive, time-consuming, and complex instruments. To realize specific sensing by rapid and handy optical sensors, a metal-organic framework (MOF) based dual sensor system is herein developed using two MOF materials BUT-128 and BUT-129 with high sensing selectivity and sensitivity. BUT-128 and BUT-129 exhibit the lowest limit of detection (LOD) towards chloramphenicol and furazolidone among reported MOF sensors. The corresponding dual sensor system with enriched signal readouts realized specific sensing of the strictly forbidden antibiotics (chloramphenicol and nitrofurans) from other regulated veterinary drugs including thiamphenicol, a structural analog of chloramphenicol. Besides, the strategy of this work is expected to flourish the development of optical sensors with high specificity for environment and food safety purposes.
关键词 :
dual sensor dual sensor metal-organic frameworks metal-organic frameworks fluorescence quenching fluorescence quenching antibiotics antibiotics specific sensing specific sensing
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GB/T 7714 | Zhao, Yan-Long , Chen, Qiang , Lv, Jie et al. Specific sensing of antibiotics with metal-organic frameworks based dual sensor system [J]. | NANO RESEARCH , 2022 , 15 (7) : 6430-6437 . |
MLA | Zhao, Yan-Long et al. "Specific sensing of antibiotics with metal-organic frameworks based dual sensor system" . | NANO RESEARCH 15 . 7 (2022) : 6430-6437 . |
APA | Zhao, Yan-Long , Chen, Qiang , Lv, Jie , Xu, Ming-Ming , Zhang, Xin , Li, Jian-Rong . Specific sensing of antibiotics with metal-organic frameworks based dual sensor system . | NANO RESEARCH , 2022 , 15 (7) , 6430-6437 . |
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摘要 :
The separation of acetylene (C2H2) from carbon dioxide (CO2) and methane (CH4) is of great significance, but remains challenging, because of their similar physicochemical properties, and it currently has received substantial research interest by using adsorptive separation based on metal-organic frameworks (MOFs). Herein, a new microporous Cu-MOF, [Cu(5-OH-IPA2-)-(DPYA)(H2O)] (BUT-318, where 5-OH-IPA2- = 5-hydroxyisoph-thalate and DPYA = 4,4 '-dipyridylamine) has been synthesized successfully under solvothermal conditions, which exhibits excellent separation performance for C2H2/CO2 and C2H2/CH4 gas mixtures. The presence of Cu(II) open metal sites and different Lewis base sites (-OH and -NH) make the activated BUT-318 efficiently bind C2H2 and exhibit high adsorption capacity under low pressure (24.52 and 9.1 cm3 g-1 under 0.01 bar, at 273 and 298 K, respectively). The corresponding IAST (ideal adsorbed solution theory) selectivity was 9.8 and 244.3 at 273 K and 1 bar for an equimolar C2H2/CO2 and C2H2/CH4 mixture. The separation performance and reusability under dynamic conditions were also confirmed by column breakthrough experiments, making BUT-318a a promising candidate for the practical C2H2 separation.
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GB/T 7714 | Xu, Zi-Chao , Yu, Jiamei , Zhang, Peng-Dan et al. Efficient C2H2 Separation from CO2 and CH4 within a Microporous Metal-Organic Framework of Multiple Functionalities [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 . |
MLA | Xu, Zi-Chao et al. "Efficient C2H2 Separation from CO2 and CH4 within a Microporous Metal-Organic Framework of Multiple Functionalities" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2022) . |
APA | Xu, Zi-Chao , Yu, Jiamei , Zhang, Peng-Dan , Zhao, Yan-Long , Wu, Xue-Qian , Zhao, Minjian et al. Efficient C2H2 Separation from CO2 and CH4 within a Microporous Metal-Organic Framework of Multiple Functionalities . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2022 . |
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摘要 :
Metal-organic frameworks (MOFs) provide an ideal platform for ion exchange due to their high porosity and structural designability; however, developing MOFs that have the essential characteristics for ion exchange remains a challenge. These crucial features include fast kinetics, selectivity, and stability. We present two anionic isomers, DGIST-2 (2D) and DGIST-3 (3D), comprising distinctly arranged 5-(1,8-naphthalimido)-isophthalate ligands and In3+ cations. Interestingly, in protic solvents, DGIST-2 transforms into a hydrolytically stable crystalline phase, DGIST-2'. DGIST-2' and DGIST-3 exhibit rapid Cs+ adsorption kinetics, as well as high Cs+ affinity in the presence of competing cations. The mechanism for rapid and selective sorption is explored based on the results of single-crystal X-ray diffraction analysis of Cs+-incorporated DGIST-3. In Cs+-containing solutions, the loosely incorporated dimethylammonium countercation of the anionic framework is replaced by Cs+, which is held in the hydrophobic cavity by supramolecular ion-ion and cation-pi interactions.
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GB/T 7714 | Jin, Kangwoo , Wu, Xue-Qian , Chen, Ying-Pin et al. Rapid Cs+ Capture via Multiple Supramolecular Interactions in Anionic Metal-Organic Framework Isomers [J]. | INORGANIC CHEMISTRY , 2022 , 61 (4) : 1918-1927 . |
MLA | Jin, Kangwoo et al. "Rapid Cs+ Capture via Multiple Supramolecular Interactions in Anionic Metal-Organic Framework Isomers" . | INORGANIC CHEMISTRY 61 . 4 (2022) : 1918-1927 . |
APA | Jin, Kangwoo , Wu, Xue-Qian , Chen, Ying-Pin , Park, In-Hyeok , Li, Jian-Rong , Park, Jinhee . Rapid Cs+ Capture via Multiple Supramolecular Interactions in Anionic Metal-Organic Framework Isomers . | INORGANIC CHEMISTRY , 2022 , 61 (4) , 1918-1927 . |
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摘要 :
抽滤法制备负载低温SCR催化剂滤料、检测及应用。涉及催化脱硝领域,具体步骤如下:1.制备低温钒钼钛基SCR脱硝催化剂;2.将制备好的块状催化剂研磨至100~120目后,将其与无水乙醇混合搅拌形成悬浊液;3.通过抽滤法将催化剂粉体均匀的负载于滤料背风面上,将复合滤料在常温下风干后再烘干,得到负载低温SCR催化剂滤料。本发明通过抽滤法实现了将催化剂粉体仅负载于滤料背风面,从而减小了烟气中的粉尘对催化剂活性的影响,对上载量能较为精准的控制,同时具有良好的低温脱硝性能,通过自制的脱硝检测装置测试,在0.5m/min过滤气速条件下,能在220℃达到83%的脱硝效率。
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GB/T 7714 | 李坚 , 陈锦森 , 蔡建宇 et al. 抽滤法制备负载低温SCR催化剂滤料、检测及应用 : CN202210913348.4[P]. | 2022-07-29 . |
MLA | 李坚 et al. "抽滤法制备负载低温SCR催化剂滤料、检测及应用" : CN202210913348.4. | 2022-07-29 . |
APA | 李坚 , 陈锦森 , 蔡建宇 , 于泽辉 . 抽滤法制备负载低温SCR催化剂滤料、检测及应用 : CN202210913348.4. | 2022-07-29 . |
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摘要 :
本发明属于大气污染治理技术和环保催化材料技术领域,公开了一种同时去除烟气中氮氧化物和一氧化碳的催化剂及制备方法和应用。本发明中所述催化剂以可溶性锰盐分别与可溶性钴盐、可溶性镍盐混合,采用共沉淀法、水热法制备得到锰钴复合氧化物、镍锰复合氧化物。采用微波加热方法对锰钴复合氧化物、镍锰复合氧化物进行活性评价,所述锰钴复合氧化物、镍锰复合氧化物催化剂能够在低温条件下对氮氧化物和一氧化碳都起到很好的去除作用。
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GB/T 7714 | 宋丽云 , 刘翠 , 邓世林 et al. 一种同时去除烟气中氮氧化物和一氧化碳的催化剂及制备方法和应用 : CN202210903968.X[P]. | 2022-07-28 . |
MLA | 宋丽云 et al. "一种同时去除烟气中氮氧化物和一氧化碳的催化剂及制备方法和应用" : CN202210903968.X. | 2022-07-28 . |
APA | 宋丽云 , 刘翠 , 邓世林 , 李坚 , 边春艺 , 何洪 . 一种同时去除烟气中氮氧化物和一氧化碳的催化剂及制备方法和应用 : CN202210903968.X. | 2022-07-28 . |
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