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A Casimir-Dark Energy Nano Reactor Design—Phase One
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作者 Mohamed S. El Naschie 《Natural Science》 2015年第6期287-298,共12页
A phase one design of a new free energy nano reactor is presented. The design is based on a basically topological interpretation of the Casimir effect as a natural intrinsic property of the geometrical topological str... A phase one design of a new free energy nano reactor is presented. The design is based on a basically topological interpretation of the Casimir effect as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. In particular we view dark energy, Hawking negative energy, Unruh temperature and zero point vacuum energy as being different sides of the same multi-dimensional coin. This new interpretation compliments the earlier conventional interpretation as vacuum fluctuation or as a Schwinger source and links the Casimir energy to the so-called missing dark energy density of the cosmos. We start with a general outline of the theoretical principle and basic design concepts of a proposed Casimir dark energy nano reactor. In a nutshell the theory and consequently the actual design depend crucially upon the equivalence between the dark energy density of the cosmos and the faint local Casimir effect produced by two sides boundary condition quantum waves. This Casimir effect is then colossally amplified as a one internal quantum wave representing a Hartle-Hawking state vector of the universe pushing from the inside against the boundary of the universe with nothing balancing it from the non-existent outside. This strange situation becomes completely natural and logical when we remember that the boundary of the universe is a one sided M&#246bius like manifold. In view of the present theory, this is essentially what leads to the observed accelerated expansion of the cosmos. As in any reactor, the basic principle in the present design is to produce a gradient so that the excess energy on one side flows to the other side. Thus in principle we will restructure the local topology of space using material nanoscience technology to create an artificial local high dimensionality with a Dvoretzky theorem like 96 percent volume measure concentration. Without going into the intricate nonlinear dynamics and technological detail, it is fair to say that this would lead us to pure, clean, free energy obtained directly from the topology of spacetime via an artificial singularity. Needless to say, the entire design is based completely on the theory of quantum wave dark energy proposed by the present author for the first time in 2011 in a conference held in the Bibliotheca Alexandrina, Egypt and a little later in Shanghai, Republic of China. The quintessence of the present theory is easily explained as the Φ3 intrinsic Casimir topological energy where Φ=?(√5-1)/2 is produced from the zero set Φ of the quantum particle when we extract the empty set quantum wave Φ2 from it and find Φ-Φ2=Φ3 by restructuring space via conducting but uncharged plates similar to that of the classical Casimir experiments. Our proposed preliminary design of this Casimir-spacetime artificial singularity reactor follows in a natural way from the above. 展开更多
关键词 CASIMIR Effect Dark ENERGY E-INFINITY Cantorian SPACETIME nano reactor AVANT Projet Free ENERGY Zero Point Vacuum ENERGY Hartle-Hawking Quantum Wave of the Cosmos
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The Casimir Topological Effect and a Proposal for a Casimir-Dark Energy Nano Reactor
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作者 Mohamed S. El Naschie 《World Journal of Nano Science and Engineering》 2015年第1期26-33,共8页
A basically topological interpretation of the Casimir effect is given as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. This new interpretation complime... A basically topological interpretation of the Casimir effect is given as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. This new interpretation compliments the earlier conventional interpretation as vacuum fluctuation or as a Schwinger source and links the Casimir energy to the so called missing dark energy density of the cosmos. We start with a general outline of the theoretical principle and basic design concepts of a proposed Casimir dark energy nano reactor. In a nutshell the theory and consequently the actual design depends crucially upon the equivalence between the dark energy density of the cosmos and the faint local Casimir effect produced by two sides boundary condition quantum waves. This Casimir effect is then colossally amplified as a one sided quantum wave pushing from the inside on the one sided M?bius-like boundary with nothing balancing it from the non-existent outside. In view of the present theory, this one sided M?bius-like boundary of the holographic boundary of the universe is essentially what leads to the observed accelerated expansion of the cosmos. Thus in principle we will restructure the local topology of space using material nanoscience technology to create an artificial local high dimensionality with a Dvoretzky theorem like volume measure concentration. Needless to say the entire design is based completely on the theory of quantum wave dark energy proposed by the present author. The quintessence of the present theory is easily explained as the intrinsic Casimir topological energy where produced from the zero set of the quantum particle when we extract the empty set quantum wave from it and find by restructuring space via plates similar to that of the classical Casimir experiments but with some modification. 展开更多
关键词 CASIMIR EFFECT Dark ENERGY E-INFINITY Cantorian Spacetime nano reactor Free ENERGY
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Kerr Black Hole Geometry Leading to Dark Matter and Dark Energy via E-Infinity Theory and the Possibility of a Nano Spacetime Singularities Reactor 被引量:8
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作者 Mohamed S. El Naschie 《Natural Science》 2015年第4期210-225,共16页
The present paper is basically a synthesis resulting from incorporating Kerr spinning black hole geometry into E-infinity topology, then letting the result bares on the vacuum zero point Casimir effect as well as the ... The present paper is basically a synthesis resulting from incorporating Kerr spinning black hole geometry into E-infinity topology, then letting the result bares on the vacuum zero point Casimir effect as well as the cosmic dark energy and dark matter density. In E-infinity theory a quantum particle is represented by a Hausdorff dimension Φ where Φ =2/(√5+1) . The quantum wave on the other hand is represented by Φ2 . To be wave and a particle simultaneously intersection theory leads us to?(Φ) (Φ)2= Φ3 which will be shown here to be twice the value of the famous Casimir force of the vacuum for a massless scalar field. Thus in the present work a basically topological interpretation of the Casimir effect is given as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. This new interpretation compliments the earlier conventional interpretation as vacuum fluctuation or as a Schwinger source and links the Casimir energy to the so called missing dark energy density of the cosmos. From the view point of the present work Casimir pressure is a local effect acting on the Casimir plates constituting the local boundary condition while dark energy is nothing but the global combined effect of infinitely many quantum waves acting on the M&#246bius-like boundary of the holographic boundary of the entire universe. Since this higher dimensional M&#246bius-like boundary is one sided, there is no outside to balance the internal collective Casimir pressure which then manifests itself as the force behind cosmic expansion, that is to say, dark energy. Thus analogous to the exact irrational value of ordinary energy density of spacetime E(O)=(Φ5/2) mc2 we now have P (Casimir) = (Φ3/2)(ch/d2) where c is the speed of light, m is the mass, h is the Planck constant and d is the plate separation. In addition the new emerging geometry combined with the topology of E-infinity theory leads directly to identifying dark matter with the quasi matter of the ergosphere. As a direct consequence of this new insight E=mc2 which can be written as E = E (O) + E (D)?where the exact rational approximation is E (O)=mc2/22 is?the ordinary energy density of the cosmos and the exact rational approximation E (D)=mc2/(21/22) is the corresponding dark energy which could be subdivided once more albeit truly approximately into E(D)=mc2/(5/22)?+mc2/(16/22)??where 5 is the Kaluza Klein spacetime dimension, 16 are the bosonic extra dimensions of Heterotic superstrings and 5/22 □?22% is approximately the density of the dark matter-like energy of the ergosphere of the Kerr geometry. As for the actual design of our nano reactor, this is closely related to branching clusters of polymer, frequently called lattice animals. In other words we will have Casimir spheres instead of Casimir plates and these spheres will be basically nano particles modelling lattice animals. Here D=?4 will be regarded as spacetime dimensionality while D=6 of percolations are the compactified super string dimensions and D=8 is the dimension of a corresponding super space. 展开更多
关键词 Casimir Effect Dark ENERGY E-INFINITY Cantorian SPACETIME Kerr SPACETIME GEOMETRY ENERGY from the Ergosphere Spinning Black Holes nano SPACETIME reactors Kaluza-Klein SPACETIME Heterotic SUPERSTRINGS
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On a Non-Perturbative Quantum Relativity Theory Leading to a Casimir-Dark Energy Nanotech Reactor Proposal
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作者 Mohamed S. El Naschie 《Open Journal of Applied Sciences》 2015年第7期313-324,共12页
In this paper we outline a non-perturbative quantum relativity theory. Subsequently an actual design of a nanotech energy reactor is based on spacetime vacuum fluctuation of the said quantum relativity theory. Using a... In this paper we outline a non-perturbative quantum relativity theory. Subsequently an actual design of a nanotech energy reactor is based on spacetime vacuum fluctuation of the said quantum relativity theory. Using a compact heap of Fullerene nano particle moduli of a nano matrix device we propose that by maximizing the Casimir forces between these particles as a desirable effect, we can achieve a gradual rather than a sudden implosion pressure. We expect that this will result in a mini holographic universe from which energy can be extracted in a way to constitute a nano energy reactor and function effectively on a hybrid principle somewhere between a Casimir effect and a cold fusion process based on the fusion algebra of a highly structured golden ring quantum field theory. The present theory depends upon many concepts and results, in particular J. Schwinger’s source theory as well as the modern theory of quantum sets, nonlinear dynamics, chaos and chaotic fractals. 展开更多
关键词 QUANTUM Relativity CASIMIR reactor Dark ENERGY nano Spacetime ENERGY reactor Chaos and Fractals SCHWINGER Source Theory Fusion Algebra QUANTUM Sets
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Crystal Structure Evolution of the Cu-rich Nano Precipitates from bcc to 9R in Reactor Pressure Vessel Model Steel 被引量:7
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作者 Liu FENG Bangxin ZHOU +1 位作者 Jianchao PENG Junan WANG 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2013年第6期707-712,共6页
The crystal structure evolution of the Cu-rich nano precipitates from bcc to 9R during thermal aging was studied in nuclear reactor pressure vessel (RPV) model steels. The specimens, contained higher copper and nick... The crystal structure evolution of the Cu-rich nano precipitates from bcc to 9R during thermal aging was studied in nuclear reactor pressure vessel (RPV) model steels. The specimens, contained higher copper and nickel contents than commercially available one, were heated at 890 ~C for 0.5 h and then water quenched followed by tempering at 0(50 ~C for I0 h and aging at 400 ~C for 1000 h. It was observed that bcc and 9R orthogonal structure, as well as 9R orthogonal and 9R monoclinic structure, coexist in a single Cu-rich nano precipitate. Further analyses pointed out that Cu-rich nano precipitates of bcc structure were not stable, it may preferentially transform to 9R orthogonal structure and then to 9R monoclinic structure. This results showed that the crystal structure evolution of the Cu-rich nano precipitates was complex. 展开更多
关键词 reactor pressure vessel model steel Thermal aging Cu-rich nano precip-itates Structure evolution HRTEM
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Synthesis of Y_2O_3 Nano-Powder from Yttrium Oxalate under Ambient Temperature 被引量:9
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作者 李玲 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第3期358-361,共4页
High purity Y_2O_3 nano-powders was synthesized directly from solution ofindustrial YCl_3 by method of oxalate precipitation through super-micro-reactors made by complexnon-ionic surfactant. The purity and diameter of... High purity Y_2O_3 nano-powders was synthesized directly from solution ofindustrial YCl_3 by method of oxalate precipitation through super-micro-reactors made by complexnon-ionic surfactant. The purity and diameter of Y_2O_3 particles were controlled by such processingparameters as concentration of YCl_3 and oxalic acid and complex non-ionic surfactant etc. TEMphotomicrographs show that Y_2O_3 particles are spherical in shape, with an average diameter of lessthan 30 nm. Test results certify that the purity and particle diameter as well as the dispersion ofY_2O_3 nano-powder depend on the concentrations of YCl_3, oxalic acid and complex non-ionicsurfactant. The optimum ranges of the concentrations for YCl_3 and complex non-ionic surfactant whenthe diameter of Y_2O_3 particles is smaller than 100 nm are 0.43 ~1.4 mol ? L^(-1) and0.031~0.112 mol·L^(-1) respectively, while the mass fraction range of oxalic acid is 10% ~18% .The purity of Y_2O_3 nano-powder tested by ICP-AES analysis is 99.99% . 展开更多
关键词 oxalate precipitation method complex non-ionic surfactant super-micro-reactor Y_2O_3 nano-powder synthesis rare earths
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Progress in sonochemical fabrication of nanostructured photocatalysts 被引量:2
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作者 Chang-Lin Yu Jimmy C.Yu +1 位作者 Hong-Bo He Wan-Qin Zhou 《Rare Metals》 SCIE EI CAS CSCD 2016年第3期211-222,共12页
In recent years,nanostructured photocatalysts have become the research focus due to their immense potential application in environmental purification and energy conversion.The photocatalytic performance of photocataly... In recent years,nanostructured photocatalysts have become the research focus due to their immense potential application in environmental purification and energy conversion.The photocatalytic performance of photocatalysts is closely related to their synthesis methods.High-intensity ultrasound irradiation could provide a unique tool for fabrication of photocatalysts with novel nanostructures.Ultrasound induces acoustic cavitation which generates unique physicochemical conditions,e.g.,hot spot(5000℃),high pressure of 100 MPa,fast rate of heat conduction(〉〉1×10^10℃·s^-1).These unique physicochemical conditions allow for the synthesis of various nanostructured photocatalysts.This review summarized the recent development in fabrication of photocatalysts with special nanostructures and their applications.The typical sonochemical reactors and parameters in sonochemical synthesis are introduced and discussed.Sonochemically prepared structures including nano-/microspheres,one-dimensional(1D) nanorods,two-dimensional(2D) nanosheets(nanoflakes,nanosquares),noble metal nanoparticle(NP)-deposited and element-doped photocatalysts are described and summarized.It is believed that sonication is a green methodology,and it holds greatpotential in the near future for nanostructured photocatalyst fabrication. 展开更多
关键词 Sonochemical reactor Photocatalysts nano-/microsphere One/two-dimensional nanostructure Ultrasonic deposition and doping Pollutant degradation
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纳米碳酸锌的制备和热分解动力学参数的测定 被引量:6
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作者 冯悦兵 卢文庆 +2 位作者 曹剑瑜 蔡政 王鹏飞 《无机化学学报》 SCIE CAS CSCD 北大核心 2003年第4期428-432,共5页
Nanosized zinc carbonate was prepared in the droplet of nano reactor based on microemusion. The influences of the concentration of the surfactant and reactant on the diameter of nanoparticles were studied and the kine... Nanosized zinc carbonate was prepared in the droplet of nano reactor based on microemusion. The influences of the concentration of the surfactant and reactant on the diameter of nanoparticles were studied and the kinetic parameters of thermal decomposition reaction were determined. It can be shown from experimental results, the diameter of the droplet in the microemulsion which have dissolved reactant zinc nitrate and sal volatile is between 4.9nm and 7.7nm, 6.2nm and 12.4nm, respectively. Nanosized zinc carbonate prepared by the method of microemusion has shown good dispersion, narrow distribution and light agglomeration. The particle size of nanosized zinc carbonate is between 5nm and 40nm, and its kinetic parameters of thermal decomposition reaction activation energy E and reaction order n are 110kJ· mol- 1 and 0.9, respectively. 展开更多
关键词 纳米碳酸锌 纳米反应器 活化能 反应级数 粒度分布 制备 热分解 动力学参数 测定 纳米材料
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SBA-15介孔分子筛的功能化新应用进展 被引量:8
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作者 马晶 褚佳 +1 位作者 强亮生 薛娟琴 《硅酸盐通报》 CAS CSCD 北大核心 2012年第2期301-305,共5页
SBA-15介孔分子筛,具有规则的孔径分布,大的孔径和较厚的孔壁,可以作为载体材料,且在反应中能提供特殊的微环境,因此在催化与纳米材料领域具有非常广阔的应用前景。针对SBA-15的应用现状,本文集中探讨了现阶段SBA-15在介孔碳的合成、色... SBA-15介孔分子筛,具有规则的孔径分布,大的孔径和较厚的孔壁,可以作为载体材料,且在反应中能提供特殊的微环境,因此在催化与纳米材料领域具有非常广阔的应用前景。针对SBA-15的应用现状,本文集中探讨了现阶段SBA-15在介孔碳的合成、色谱填料基体、纳米化学反应器等新兴领域的应用研究进展,并对今后SBA-15的发展以及研究方向进行了展望。 展开更多
关键词 介孔分子筛 介孔碳 色谱柱 吸附分离 纳米反应器
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合成脂质的研究进展 被引量:4
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作者 金黎明 岳秀丽 +2 位作者 田文杰 戴志飞 菊池纯一 《化学试剂》 CAS CSCD 北大核心 2010年第10期895-898,共4页
系统地综述了近年形成脂质体的合成脂质的研究现状,旨在为进行细胞膜模型、药物转送及纳米器件等相关研究人员提供参考。
关键词 合成脂质 脂质体 纳米微反应器 药物转送 分子器件
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旋转填充床新型反应器中合成纳米CaCO_3过程特性研究 被引量:23
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作者 王玉红 陈建峰 +1 位作者 贾志谦 郑冲 《化学反应工程与工艺》 CAS CSCD 北大核心 1997年第2期141-146,共6页
利用pH计及电导率仪跟踪Ca(OH)2在旋转填充床新型反应器中的碳化过程,并探讨了G/L、N、T、Ca(OH)2初始浓度等操作参数对碳化反应过程的影响。结果表明:Ca(OH)2与CO2碳化反应生成CaCO3过程中,反... 利用pH计及电导率仪跟踪Ca(OH)2在旋转填充床新型反应器中的碳化过程,并探讨了G/L、N、T、Ca(OH)2初始浓度等操作参数对碳化反应过程的影响。结果表明:Ca(OH)2与CO2碳化反应生成CaCO3过程中,反应前期,过程速率受CO2吸收传质控制,反应后期受Ca(OH)2的溶解控制,且吸收传质控制为整个过程的关键步骤;G/L、N、T、Ca(OH)2初始浓度等操作参数均影响碳化反应时间、产品粒径及粒径分布;利用旋转填充床新型反应器制备出平均体积当量直径为15~40nm。 展开更多
关键词 旋转填充床 反应器 碳酸钙粒子 粒径分布 纳米级
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微反应器制备纳米硫酸钡研究 被引量:10
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作者 赵华 刘洪杰 +3 位作者 朱建伟 李慧颖 赵风云 胡永琪 《无机盐工业》 CAS 北大核心 2008年第1期29-31,共3页
采用微反应器技术对硫酸钠和氯化钡为原料制备纳米硫酸钡进行了研究,考察了反应物浓度、流量、反应温度对产品颗粒粒径的影响。实验结果表明,随着反应浓度增加,随着流量增大,随着反应温度的降低,制得的硫酸钡粒子粒径减小。当温度... 采用微反应器技术对硫酸钠和氯化钡为原料制备纳米硫酸钡进行了研究,考察了反应物浓度、流量、反应温度对产品颗粒粒径的影响。实验结果表明,随着反应浓度增加,随着流量增大,随着反应温度的降低,制得的硫酸钡粒子粒径减小。当温度低于60℃时,平均粒径随反应温度的变化缓慢;当反应物浓度为0.9mol/L、流量为10L/h、室温条件下制备硫酸钡颗粒平均粒径为32nm,且粒度分布窄,纳米硫酸钡颗粒的形貌为椭球状。釜式搅拌反应器制得的硫酸钡粒径明显比用微反应器制得的硫酸钡大5~7倍。 展开更多
关键词 微反应器 纳米硫酸钡 微观混合
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纳米锌水解制氢实验 被引量:6
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作者 徐波 王树林 +3 位作者 李生娟 韩光强 陈星建 丁浩冉 《化工学报》 EI CAS CSCD 北大核心 2009年第5期1275-1280,共6页
开发一套全新的纳米锌粉水解制备氢气的实验装置,采用旋流反应器同时完成化学反应和气固分离过程,节省分离设备所需投资。研究表明:研磨11h的纳米锌结构具有优异的性能,可使反应在较低温度下迅速完成;反应温度为250℃时,固体颗粒的转化... 开发一套全新的纳米锌粉水解制备氢气的实验装置,采用旋流反应器同时完成化学反应和气固分离过程,节省分离设备所需投资。研究表明:研磨11h的纳米锌结构具有优异的性能,可使反应在较低温度下迅速完成;反应温度为250℃时,固体颗粒的转化率为89%,固相产物氧化锌与未完全反应的锌形成棒状与片状共存的独特结构;旋流反应器内气流带动颗粒作高速旋转运动,改善质量传递和热量传递过程,加快反应进程,颗粒夹带在气流中,可以简单、连续、可控地进出料,有利于工业化应用。 展开更多
关键词 纳米锌粉 旋流反应器 制氢 水解反应
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Span80/Tween80形成的W/O型微乳液体系研究 被引量:2
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作者 王金英 张景林 彭英健 《精细石油化工》 CAS CSCD 北大核心 2007年第6期12-16,共5页
为筛选一适用于以硝酸为介质进行化学反应制备纳米粒子的微乳液体系,利用相图研究了Span80和Tween80混合表面活性剂、助表面活性剂、油相烷烃、温度对W/O型微乳液的形成及微乳区面积的影响,并利用紫外/可见光吸收光谱考察了65%硝酸对此... 为筛选一适用于以硝酸为介质进行化学反应制备纳米粒子的微乳液体系,利用相图研究了Span80和Tween80混合表面活性剂、助表面活性剂、油相烷烃、温度对W/O型微乳液的形成及微乳区面积的影响,并利用紫外/可见光吸收光谱考察了65%硝酸对此微乳液体系稳定性的影响,结果表明,m(Span80):m (Tween80)=10:2(记为表面活性剂S)、正己醇为助表面活性剂且m(S):m(正己醇)=2:1、正辛烷为油相、温度为40℃的体系是适和用于纳米微反应器的W/O型微乳液体系,且以65%硝酸代替蒸馏水作为水相,体系仍具有较好的稳定性。 展开更多
关键词 微乳液 纳米微反应器 相图 SPAN80 Tween80
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固定化酶纳升微反应器用于痕量蛋白质快速肽谱分析的研究 被引量:6
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作者 郭忠 张清春 +3 位作者 雷政登 孔亮 毛希琴 邹汉法 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2002年第7期1277-1280,共4页
利用毛细管作为酶固定化的载体 ,将酶直接键合到毛细管内壁 ,制成毛细管纳升反应器 ,结合质谱分析水解产物 ,获得了蛋白质的肽谱 .实验发现 ,以毛细管为反应器后 ,蛋白质肽谱分析所需量大大减少 ,只需 1 0 - 1 3mol,甚至几个 1 0 - 1
关键词 固定化酶 纳升微反应器 蛋白质 纳升反应器 肽谱分析 痕量分析 毛细管微柱
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碳化法可控制备纳米碳酸钙研究进展 被引量:13
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作者 程娜 周梅芳 +3 位作者 陈鹏宇 李春忠 姜海波 张玲 《过程工程学报》 CAS CSCD 北大核心 2017年第2期412-419,共8页
随着纳米CaCO_3制备技术的发展,CaCO_3的物化特性及包括粒径及其分布、颗粒形貌和分散性在内的结构特征都得到了很好的控制,使其在涂料、填料、造纸和聚合物改性等领域应用越来越广泛.碳化法是一种以Ca(OH)_2-H_2O-CO_2为反应体系的纳米... 随着纳米CaCO_3制备技术的发展,CaCO_3的物化特性及包括粒径及其分布、颗粒形貌和分散性在内的结构特征都得到了很好的控制,使其在涂料、填料、造纸和聚合物改性等领域应用越来越广泛.碳化法是一种以Ca(OH)_2-H_2O-CO_2为反应体系的纳米CaCO_3制备方法,是工业应用最广泛的纳米CaCO_3制备方法.立足于该法,从纳米CaCO_3的传统制备工艺出发,结合相关传质理论,介绍了近年来用于可控制备纳米CaCO_3的几种新型反应器;系统分析了Ca(OH)_2的起始浓度、CO_2分压、气体流量、温度对纳米CaCO_3成核生长过程的作用机制;介绍了碳化过程中加入添加剂对CaCO_3粒径、形貌和分散性的影响,并简述了其作用机理;针对CaCO_3可控制备过程中存在的问题提出了一些建议. 展开更多
关键词 纳米碳酸钙 可控制备 反应器 添加剂 气液传质
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定-转子反应器制备纳米碳酸钙 被引量:9
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作者 初广文 宋云华 +1 位作者 陈建铭 陈罕 《化工进展》 EI CAS CSCD 北大核心 2005年第5期545-548,共4页
结合定-转子反应器的结构及特点,提出了定-转子反应器制备纳米碳酸钙的新工艺.采用Ca(OH)2-H2O-CO2多相反应体系,考察了气液逆流及并流操作对碳化反应时间的影响.XRD分析结果表明产品为方解石型碳酸钙;通过TEM观测可知,产品为平均粒径50... 结合定-转子反应器的结构及特点,提出了定-转子反应器制备纳米碳酸钙的新工艺.采用Ca(OH)2-H2O-CO2多相反应体系,考察了气液逆流及并流操作对碳化反应时间的影响.XRD分析结果表明产品为方解石型碳酸钙;通过TEM观测可知,产品为平均粒径50~60nm的立方形纳米碳酸钙. 展开更多
关键词 定-转子反应器 纳米碳酸钙 性能分析
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新型连续光催化反应器光催化降解特性的研究 被引量:7
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作者 邓洪权 唐亭 +3 位作者 符纯华 蒋琪英 胡亚敏 霍冀川 《工业水处理》 CAS CSCD 北大核心 2013年第12期31-34,共4页
在设计并建立的连续列管式光催化反应器中,以纳米TiO2为催化剂对甲基橙水溶液进行光催化降解性能研究,系统考察了管程数、连接方式、气体流量、液体流量、pH、催化剂用量以及被降解物初始浓度等参数对降解率的影响。最适宜条件:管程为4... 在设计并建立的连续列管式光催化反应器中,以纳米TiO2为催化剂对甲基橙水溶液进行光催化降解性能研究,系统考察了管程数、连接方式、气体流量、液体流量、pH、催化剂用量以及被降解物初始浓度等参数对降解率的影响。最适宜条件:管程为4且采用首尾相互连接方式,液相和气相流速分别为0.5 L/h、3 L/min,pH为4.0。在给定条件下反应器对质量浓度为20 mg/L的甲基橙溶液的光催化脱色率达最大值97.7%。 展开更多
关键词 光催化反应器 甲基橙 纳米二氧化钛
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纳米TiO_2对污水生物脱氮除磷的影响 被引量:2
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作者 李大鹏 崔福义 +1 位作者 杨晓南 李慧婷 《东北师大学报(自然科学版)》 CAS CSCD 北大核心 2014年第4期157-162,共6页
为研究纳米材料对污水好氧生物处理过程的影响,将一台六联混凝搅拌仪进行重新设计和改造,模拟SBR反应器一个周期的运行,通过短时、高浓度梯度投加纳米TiO2,考察了不同浓度纳米TiO2对反应体系中DO,pH,NH+4—N,NO-3—N,PO3-4—P等指标的影... 为研究纳米材料对污水好氧生物处理过程的影响,将一台六联混凝搅拌仪进行重新设计和改造,模拟SBR反应器一个周期的运行,通过短时、高浓度梯度投加纳米TiO2,考察了不同浓度纳米TiO2对反应体系中DO,pH,NH+4—N,NO-3—N,PO3-4—P等指标的影响,同时,采用PCR-DGGE分析手段对群落结构的变化进行了研究.结果表明:在SBR反应器一个运行周期(6h)内,质量浓度分别为0,125,250,500,1 000mg/L的纳米TiO2对体系内DO,pH,NH+4—N的浓度影响不大;当纳米TiO2浓度为2 000 mg/L时,对体系内NO-3—N,PO3-4—P的浓度产生了较大影响.PCR-DGGE结果显示,短时、高浓度梯度投加纳米TiO2对SBR系统中种群多样性无明显影响. 展开更多
关键词 纳米TIO2 SBR反应器 脱氮除磷 群落结构
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生产球形纳米碳酸钙新型碳化反应器开发研究 被引量:5
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作者 赵风云 刘洪杰 +4 位作者 刘宝树 胡永琪 刘润静 李津津 胡庆福 《无机盐工业》 CAS 北大核心 2006年第3期56-57,61,共3页
已经工业化的纳米碳酸钙生产方法所生产的产品多为立方形和纺锤形,目前还没有生产球形纳米碳酸钙的工业方法。给出了一种生产球形纳米碳酸钙的喷射—乳化新型组合式碳化反应器,并进行了小试和中试实验研究。在小型实验装置上,采用正交... 已经工业化的纳米碳酸钙生产方法所生产的产品多为立方形和纺锤形,目前还没有生产球形纳米碳酸钙的工业方法。给出了一种生产球形纳米碳酸钙的喷射—乳化新型组合式碳化反应器,并进行了小试和中试实验研究。在小型实验装置上,采用正交试验的方法,确定出粒度分布窄的球形纳米碳酸钙的最佳反应条件为:温度15℃,氢氧化钙浆液质量浓度65 g/L,气液体积比51∶。在完成小试的基础上,建成了年产60 t纳米碳酸钙的中试实验装置,并成功制备出平均粒径80 nm球形纳米碳酸钙。 展开更多
关键词 球形纳米碳酸钙 碳化反应器 喷射 乳化机
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