搜索结果: 1-15 共查到“知识库 化学工程 Water”相关记录20条 . 查询时间(0.163 秒)
Hierarchical magnesium oxide microspheres for removal of heavy ions from water and efficient bacterial inactivation
magnesium oxide heavy ions bacterial inactivation
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...
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
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
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...
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
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
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
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
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...
Microstructure and Phase Behavior of Cationic Gemini/Anionic Polyelectrolyte/Water Ternary System
gemini surfactant polyelectrolyte molecular interaction
2009/11/16
The microstructure of cationic gemini surfactant 1,6-bis(dodecyldimethylammonium) hexane dibromide [C12H25(CH3)2N-(CH2)6-N(CH3)2C12H25×2Br] (12-6-12×2Br-) and oppositely charged polyelectrolyte poly(a...
Drinking Water Denitrification in a Fixed Bed Packed Biofilm Reactor
Active carbon attached growth biofilm denitrification fixed bed Paracoccus denitrificans
2009/10/15
In this study the effect of feed solution nitrate content (FNC), which varied between 50 and 200 ppm, and feed solution
flow rate (FFR), which was in the range from 25.68 to 535 ml/h, on the nitrate ...
Equilibrium Data on Water-Ethanol-1-Dodecanol Ternary System
ethanol 1-dodecanol liquid-liquid extraction
2009/10/13
The experimental liquid-liquid equilibria of a water-ethanol-1-dodecanol system were investigated at temperatures of 298.160.20, 303.160.20 and 308.160.20 K. The reliability of experimental tie-lin...
The Use of Tannins from Turkish Acorns (Valonia) in Water Treatment as a Coagulant and Coagulant Aid
Tannins Turkish acorn Coagulant Coagulant aid Synthetic anionic polyelectrolyte
2009/10/12
Coagulants play an important role in the treatment of water and wastewater and in the treatment and disposal of sludge. Aluminum sulfate, alum, is the common chemical coagulant used in the coagulation...
Investigation of Methanol Oxidation on Polycrystalline Pt:Importance of the Water-Gas Shift Reaction
Water-gas shift Methanol Oxidation Platinum Carbon monoxide
2009/10/10
A water-gas shift reaction model was proposed for methanol oxidation on polycrystalline platinum. To see if the model proposed can explain methanol oxidation on platinum metal, a polycrystalline plati...
Simple and Multiple Water Fuel Emulsions Preparation in Helical Flow
Simple and multiple emulsions Couette-Taylor flow
2009/10/10
This paper presents a method of simple and multiple water fuel emulsions preparation in a liquid-liquid contactor with Couette-Taylor flow (CTF contactor). This method concerns the integration of the ...
Novel Production Method for Plant Polyphenol from Livestock Excrement Using Subcritical Water Reaction
Plant Polyphenol Livestock Excrement
2009/9/2
Plant polyphenol, including vanillin, is often used as the intermediate materials of the medicines and vanilla flavoring. In agriculture generally vanillin is produced from vanilla plant and in indust...
Membrane-Based Separation of Phenol/Water Mixtures Using Ionically and Covalently Cross-Linked Ethylene-Methacrylic Acid Copolymers
Phenol/Water Mixtures Ethylene-Methacrylic
2009/9/2
Membrane-based separation of phenol/water mixtures with concentrations of phenol between 3 wt% and 8 wt% in the feed has been performed with nonmodified as well as cross-linked ethylene-me...