搜索结果: 1-15 共查到“化学工程 water”相关记录29条 . 查询时间(0.658 秒)
Hierarchical magnesium oxide microspheres for removal of heavy ions from water and efficient bacterial inactivation
magnesium oxide heavy ions bacterial inactivation
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2023/6/21
Hierarchical magnesium oxide (MgO) microspheres with high adsorption capacity of heavy metal ions and potent antibacterial activity were synthesized by an aerosol-assisted method. It is a facile, effi...
中国科学院力学研究所专利：UNDERGROUND DOUBLE-VORTEX CYCLONE OIL-WATER SEPARATOR WITH GOOD SEPARATION EFFECT
中国科学院力学研究所 专利 分离 地下双涡旋 油水分离器
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2024/6/3
中国科学院力学研究所专利：UNDERGROUND DOUBLE-VORTEX CYCLONE OIL-WATER SEPARATOR WITH GOOD SEPARATION EFFECT
Moving water and earth（图）
颗粒形状 河流恢复 海岸侵蚀
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2023/6/19
As a river cuts through a landscape, it can operate like a conveyer belt, moving truckloads of sediment over time. Knowing how quickly or slowly this sediment flows can help engineers plan for the dow...
（2022 Water Res）固氮研究取得新进展（图）
生物固氮 Geobacter 厌氧土壤 电化学系统
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2023/3/21
福建农林大学资源与环境学院周顺桂教授团队、刘星研究员在固氮研究中取得进展。目前，工业合成氨（固氮）主要途径是Haber-Bosch工艺，其生产条件需要高温高压，既耗能又污染环境（据估计，其年均能耗约占世界能源总耗的1-2%）。而生物固氮是一种自然界广泛存在的、既经济又环境友好的固氮方式，它通过微生物代谢产生的能量，在固氮酶的作用下在常温常压下高效固定N2。研究表明，地球固氮总量的50%来自于生物固...
A new, inexpensive catalyst speeds the production of oxygen from water（图）
廉价催化剂 碳中和燃料 氧气
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2023/6/19
An electrochemical reaction that splits apart water molecules to produce oxygen is at the heart of multiple approaches aiming to produce alternative fuels for transportation. But this reaction has to ...
水系电解液重要研究进展：CO2诱导形成界面SEI膜实现 Water-in-Salt到Salt-in-Water转变（图）
CO2诱导 水系电解液 界面SEI膜 Water-in-Salt
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2023/1/6
近年来，水系二次电池因为安全、绿色和低成本受到研究人员广泛关注，但受限于水系电解液电化学窗口窄，水系二次电池存在输出电压低，能量密度低，自放电高以及循环寿命差等问题，从而大大限制了其广泛应用。为了实现宽电位水系电解液，超高盐浓度Water-in-salt电解液被提出，通过提高盐浓度实现溶剂-离子相互作用调制降低水的电化学活性和实现SEI离子导体钝化膜，成功将水系电解液电化学窗口拓宽至3V及以上（S...
Direct observation of water clusters for surface design
Water cluster Vapor condensation Attenuated total reflection IR Surface structure
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2023/3/1
Engineered surfaces for water collection have been intensively investigated. However, microscopic mechanism of condensation on structural surfaces is rarely explored and it's always a challenge to obs...
广东工业大学环境健康与污染控制研究院高艳蓬副教授等在Water Research杂志上发表典型防腐剂环境健康方面最新学术论文（图 ）
广东工业大学环境健康与污染控制研究院 高艳蓬 Water Research 防腐剂 环境健康
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2020/4/5
近日，广东工业大学环境健康与污染控制研究院，环境科学与工程学院安太成教授和高艳蓬副教授等在典型防腐剂光降解过程中的环境健康研究方面取得新进展，研究成果以《Unexpected culprit of increased estrogenic effects: Oligomers in the photodegradation of preservative ethylparaben in water...
Catalysts Developed at Carnegie Mellon Efficiently and Rapidly Remove BPA from Water（图）
Catalysts Carnegie Mellon Rapidly Remove BPA Water
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2017/9/1
Carnegie Mellon University chemist Terrence J. Collins has developed an approach that quickly and cheaply removes more than 99 percent of bisphenol A (BPA) from water. BPA, a ubiquitous and dangerous ...
New Efficient,Low-Temperature Catalyst for Converting Water and CO to Hydrogen Gas and CO2
Low-Temperature Catalyst Converting Water CO to Hydrogen Gas CO2
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2017/7/24
Scientists have developed a new low-temperature catalyst for producing high-purity hydrogen gas while simultaneously using up carbon monoxide (CO). The discovery—described in a paper set to publish on...
New Nanofiber Marks Important Step In Next Generation Battery and Water Electrolysis Development
New Nanofiber Marks Next Generation Battery Water Electrolysis
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2017/3/30
One of the keys to building electric cars that can travel longer distances and to powering more homes with renewable energy is developing efficient and highly capable energy storage systems.Materials ...
Thiourea dioxide: An efficient and reusable organocatalyst for the rapid one-pot synthesis of pyrano[4, 3-b]pyran derivatives in water
Pyrano[4,3-b]pyran Thiourea dioxide 4-Hydroxy-6-methylpyran-2-one One-pot synthesis
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2014/3/11
A series of pyrano[4,3-b]pyran derivatives have been synthesized in excellent yields by the reaction of aromatic aldehydes with malononitrile or cyanoacetate and 4-hydroxy-6-methylpyran-2-one in water...
Magnetically recoverable, nanoscale-supported heteropoly acid catalyst for green synthesis of biologically active compounds in water（图）
Core-shell particle Magnetically recoverable catalyst Heteropoly acid Xanthene Hydroacridine
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2013/9/25
12-Tungstophosphoric acid supported on aerosil silica and silica-coated γ-Fe2O3 nanoparticles was prepared and characterized using transmission electron microscopy, scanning electron microscopy, and i...
SiO2-NaHSO4 as an Efficient Reusable Heterogeneous Catalyst for the One-Pot Three-Component Synthesis of Octahydro-quinazolin-2,5-diones in Water（图）
octahydro-quinazolin-2,5-dione aromatic aldehyde dimedone urea water
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2013/10/8
An environmentally benign method for the synthesis of octahydro-quinazolin-2,5-diones by the reaction of aromatic aldehydes,dimedone, and urea in the presence of SiO2-NaHSO4 is reported. SiO2-NaHSO4 a...
Measurement and Correlation of Liquid–Liquid Equilibrium Data for Ethanol–Water–KF and Ethanol–Water–K2CO3 Systems
ethanol–water–KF NRTL equation UNIQUAC equation correlation
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2009/11/16
The liquid–liquid equilibrium data for two ternary systems, ethanol–water–KF and ethanol– water–K2CO3, were determined at 25℃. Experiments show that by adding KF or K2CO3 into the ethanol–water system...