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Exact Traveling Wave Solutions to Phi-4 Equation and Joseph-Egri (TRLW) Equation and Calogro-Degasperis (CD) Equation by Modified (G'/G2)-Expansion Method
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作者 Maha Al-Harbi Waleed Al-Hamdan Luwai Wazzan 《Journal of Applied Mathematics and Physics》 2023年第7期2103-2120,共18页
In this study, we will introduce the modified (G'/G<sup>2</sup>)-expansion method to explore some of the exact traveling wave solutions of some nonlinear partial differential equations namely, Phi-4 eq... In this study, we will introduce the modified (G'/G<sup>2</sup>)-expansion method to explore some of the exact traveling wave solutions of some nonlinear partial differential equations namely, Phi-4 equation, Joseph-Egri (TRLW) equation, and Calogro-Degasperis (CD) equation. As a result, we have obtained solutions for the equations expressed in terms of trigonometric, hyperbolic and rational functions. Moreover, some selected solutions are plotted using some specific values for the parameters. 展开更多
关键词 Exact Solutions Modified (g'/g2)-expansion method Phi-4 Equation Joseph-Egri (TRLW) Equation Calogro-Degasperis (CD) Equation
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金属有机骨架和g-C_(3)N_(4)共掺杂改性TiO_(2)光催化性能
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作者 李宁 臧书杰 +1 位作者 蒋托红 赵鹬 《精细化工》 EI CAS CSCD 北大核心 2024年第9期1941-1948,共8页
以钛酸四丁酯、三聚氰胺、二甲基咪唑和Co(NO_(3))_(2)•6H_(2)O为原料,采用溶胶-凝胶法、高温煅烧法,将类石墨相氮化碳(g-C_(3)N_(4))和二甲基咪唑钴(ZIF-67)与TiO_(2)共掺杂,制备了TiO_(2)-g-C_(3)N_(4)-ZIF-67光催化剂。采用XRD、XPS... 以钛酸四丁酯、三聚氰胺、二甲基咪唑和Co(NO_(3))_(2)•6H_(2)O为原料,采用溶胶-凝胶法、高温煅烧法,将类石墨相氮化碳(g-C_(3)N_(4))和二甲基咪唑钴(ZIF-67)与TiO_(2)共掺杂,制备了TiO_(2)-g-C_(3)N_(4)-ZIF-67光催化剂。采用XRD、XPS、SEM和紫外-可见漫反射光谱(UV-Vis DRS)对TiO_(2)-g-C_(3)N_(4)-ZIF-67进行了表征,对TiO_(2)-g-C_(3)N_(4)-ZIF-67光催化降解甲基橙的催化活性进行了评价,并对其催化机理进行了推测。结果表明,TiO_(2)-g-C_(3)N_(4)-ZIF-67同时包含锐钛矿及少量金红石相TiO_(2)、g-C_(3)N_(4)及ZIF-67;g-C_(3)N_(4)的加入使TiO_(2)的带隙降至2.45 eV,ZIF-67将带隙进一步降至1.91 eV;g-C_(3)N_(4)和ZIF-67的共掺杂降低了带隙,显著提高了TiO_(2)可见光吸收范围(492~649 nm);TiO_(2)-g-C_(3)N_(4)-ZIF-67形成了Ⅱ型异质结,TiO_(2)-g-C_(3)N_(4)与金属有机骨架的结合增强了TiO_(2)光催化降解甲基橙的能力。Co质量分数21.5%的TiO_(2)-g-C_(3)N_(4)-ZIF-67-2具有最佳的光催化降解甲基橙活性,在可见光照射40 min时,甲基橙降解率可达79.92%,3次循环后甲基橙降解率为58.86%(90 min),光催化反应对ZIF-67的结晶度有所影响,进而影响了循环时的光催化活性。 展开更多
关键词 光催化 溶胶-凝胶法 高温煅烧法 TiO_(2) g-C_(3)N_(4) ZIF-67 功能材料
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自牺牲法合成氮空位g-C_(3)N_(4)/Cu_(2)(OH)_(2)CO_(3)异质结及其广谱光固氮性能
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作者 梁红玉 王斌 +1 位作者 陆光 商丽艳 《材料导报》 EI CAS CSCD 北大核心 2024年第16期62-67,共6页
本研究采用原位自牺牲法合成了N空位掺杂的g-C_(3)N_(4)/Cu_(2)(OH)_(2)CO_(3)(VCN/Cu)异质结催化剂,该催化剂体现出优异的可见-近红外宽光谱驱动性。实验结果表明,g-C_(3)N_(4)与Cu_(2)(OH)_(2)CO_(3)之间的电荷迁移遵循“Z”型机制。... 本研究采用原位自牺牲法合成了N空位掺杂的g-C_(3)N_(4)/Cu_(2)(OH)_(2)CO_(3)(VCN/Cu)异质结催化剂,该催化剂体现出优异的可见-近红外宽光谱驱动性。实验结果表明,g-C_(3)N_(4)与Cu_(2)(OH)_(2)CO_(3)之间的电荷迁移遵循“Z”型机制。氮空位的存在抑制了电荷载流子的重组,降低了界面电荷转移的能量屏障,对N 2和O_(2)的吸附和活化激发了固氮还原反应的进行,并提供了更多的反应活性位点。体系中甲醇作为空穴清除剂时O_(2)的添加对制备的催化剂的光固氮性能有显著的促进作用,在50%O_(2)和50%N_(2)混合气氛下VCN/Cu异质结催化剂的铵离子产率高达14.52 mg·L^(-1)·h^(-1)·g^(-1),是纯N 2气氛下的2.7倍,且按照“三线”光固氮机理运行。本研究为低耗、绿色环保固氮工艺提供了一条新途径。 展开更多
关键词 石墨相氮化碳 碱式碳酸铜 光催化固氮 氮空位 自牺牲法
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A novel (G'/G)-expansion method and its application to the Boussinesq equation 被引量:15
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作者 Md.Nur Alam Md.Ali Akbar Syed Tauseef Mohyud-Din 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第2期34-43,共10页
In this article, a novel (G'/G)-expansion method is proposed to search for the traveling wave solutions of nonlinear evolution equations. We construct abundant traveling wave solutions involving parameters to the B... In this article, a novel (G'/G)-expansion method is proposed to search for the traveling wave solutions of nonlinear evolution equations. We construct abundant traveling wave solutions involving parameters to the Boussinesq equation by means of the suggested method. The performance of the method is reliable and useful, and gives more general exact solutions than the existing methods. The new (G'/G)-expansion method provides not only more general forms of solutions but also cuspon, peakon, soliton, and periodic waves. 展开更多
关键词 (g'/g)-expansion method Boussinesq equation solitary wave solutions auxiliary nonlinear ordinary differential equation
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The (ω/g)-expansion method and its application to Vakhnenko equation 被引量:9
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作者 李文安 陈浩 张国才 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第2期400-404,共5页
This paper presents a new function expansion method for finding travelling wave solutions of a nonlinear evolution equation and calls it the (w/g)-expansion method, which can be thought of as the generalization of ... This paper presents a new function expansion method for finding travelling wave solutions of a nonlinear evolution equation and calls it the (w/g)-expansion method, which can be thought of as the generalization of (G'/G)-expansion given by Wang et al recently. As an application of this new method, we study the well-known Vakhnenko equation which describes the propagation of high-frequency waves in a relaxing medium. With two new expansions, general types of soliton solutions and periodic solutions for Vakhnenko equation are obtained. 展开更多
关键词 (w/g)-expansion method Vakhnenko equation travelling wave solutions
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Exact solutions of nonlinear fractional differential equations by (G'/G)-expansion method 被引量:6
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作者 Ahmet Bekir zkan Güner 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第11期140-145,共6页
In this paper, we use the fractional complex transform and the (G'/G)-expansion method to study the nonlinear fractional differential equations and find the exact solutions. The fractional complex transform is prop... In this paper, we use the fractional complex transform and the (G'/G)-expansion method to study the nonlinear fractional differential equations and find the exact solutions. The fractional complex transform is proposed to convert a partial fractional differential equation with Jumarie's modified Riemann-Liouville derivative into its ordinary differential equation. It is shown that the considered transform and method are very efficient and powerful in solving wide classes of nonlinear fractional order equations. 展开更多
关键词 (g'/g)-expansion method time-fractional Burgers equation fractional-order biological popula-tion model space-time fractional Whitham-Broer-Kaup equations
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The (G'/G, 1/G)-expansion method and its application to travelling wave solutions of the Zakharov equations 被引量:13
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作者 LI Ling-xiao LI Er-qiang WANG Ming-liang 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2010年第4期454-462,共9页
The (G'/G, 1/G)-expansion method for finding exact travelling wave solutions of nonlinear evolution equations, which can be thought of as an extension of the (G'/G)-expansion method proposed recently, is present... The (G'/G, 1/G)-expansion method for finding exact travelling wave solutions of nonlinear evolution equations, which can be thought of as an extension of the (G'/G)-expansion method proposed recently, is presented. By using this method abundant travelling wave so- lutions with arbitrary parameters of the Zakharov equations are successfully obtained. When the parameters are replaced by special values, the well-known solitary wave solutions of the equations are rediscovered from the travelling waves. 展开更多
关键词 The (g /g 1/g)-expansion method travelling wave solutions homogeneous balance solitary wave solutions Zakharov equations.
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A connection between the(G'/G)-expansion method and the truncated Painlevé expansion method and its application to the mKdV equation 被引量:3
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作者 赵银龙 柳银萍 李志斌 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第3期41-46,共6页
Recently the (G′/G)-expansion method was proposed to find the traveling wave solutions of nonlinear evolution equations. This paper shows that the (G′/G)-expansion method is a special form of the truncated Pain... Recently the (G′/G)-expansion method was proposed to find the traveling wave solutions of nonlinear evolution equations. This paper shows that the (G′/G)-expansion method is a special form of the truncated Painlev'e expansion method by introducing an intermediate expansion method. Then the generalized (G′/G)-(G/G′) expansion method is naturally derived from the standpoint of the nonstandard truncated Painlev'e expansion. The application of the generalized method to the mKdV equation shows that it extends the range of exact solutions obtained by using the ( G′/ G)-expansion method. 展开更多
关键词 g′/g)-expansion method truncated Painlev'e expansion method mKdV equation trav-eling wave solutions
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Exact Solution to Nonlinear Differential Equations of Fractional Order via (<i>G’</i>/<i>G</i>)-Expansion Method 被引量:4
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作者 Muhammad Younis Asim Zafar 《Applied Mathematics》 2014年第1期1-6,共6页
In this article, a new application to find the exact solutions of nonlinear partial time-space fractional differential Equation has been discussed. Firstly, the fractional complex transformation has been implemented t... In this article, a new application to find the exact solutions of nonlinear partial time-space fractional differential Equation has been discussed. Firstly, the fractional complex transformation has been implemented to convert nonlinear partial fractional differential Equations into nonlinear ordinary differential Equations. Afterwards, the (G'/G)-expansion method has been implemented, to celebrate the exact solutions of these Equations, in the sense of modified Riemann-Liouville derivative. As application, the exact solutions of time-space fractional Burgers’ Equation have been discussed. 展开更多
关键词 EXACT Solution to Nonlinear Differential Equations of Fractional Order VIA (g’/g)-expansion method
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Comment on “Application of the (G'/G)-Expansion Method for Nonlinear Evolution Equations”[Phys.Lett.A 372 (2008) 3400] 被引量:3
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作者 ZHU Peng 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第8期206-208,共3页
In this paper,some travelling wave solutions involving parameters of the Modified Zakharov-Kuznetsovequation [Phys.Lett.A 372 (2008) 3400] are investigated.We will show that these solutions are not new travellingwave ... In this paper,some travelling wave solutions involving parameters of the Modified Zakharov-Kuznetsovequation [Phys.Lett.A 372 (2008) 3400] are investigated.We will show that these solutions are not new travellingwave solutions. 展开更多
关键词 (g'/g)-expansion method travelling wave solutions Modified Zakharov-Kuznetsov equation
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(G'/G)-Expansion Method Equivalent to Extended Tanh Function Method 被引量:1
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作者 LIU Chun-Ping 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第6期985-988,共4页
In a recent article [Physics Letters A 372 (2008) 417], Wang et al. proposed a method, which is called the (G′/G)-expansion method, to look for travelling wave solutions of nonlinear evolution equations. The trav... In a recent article [Physics Letters A 372 (2008) 417], Wang et al. proposed a method, which is called the (G′/G)-expansion method, to look for travelling wave solutions of nonlinear evolution equations. The travelling wave solutions involving parameters of the KdV equation, the mKdV equation, the variant Boussinesq equations, and the Hirota-Satsuma equations are obtained by using this method. They think the (G′/G)-expansion method is a new method and more travelling wave solutions of many nonlinear evolution equations can be obtained. In this paper, we will show that the (G′/G)-expansion method is equivalent to the extended tanh function method. 展开更多
关键词 g′/g)-expansion method extended tanh function method Riccati equation KdV equation
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An Innovative Solutions for the Generalized FitzHugh-Nagumo Equation by Using the Generalized (G'/G)-Expansion Method 被引量:1
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作者 Sayed Kahlil Elagan Mohamed Sayed Yaser Salah Hamed 《Applied Mathematics》 2011年第4期470-474,共5页
In this paper, the generalized (G'/G)-expansion method is used for construct an innovative explicit traveling wave solutions involving parameter of the generalized FitzHugh-Nagumo equation , for some special param... In this paper, the generalized (G'/G)-expansion method is used for construct an innovative explicit traveling wave solutions involving parameter of the generalized FitzHugh-Nagumo equation , for some special parameter where satisfies a second order linear differential equation , , where and are functions of . 展开更多
关键词 FitzHugh-Nagumo EQUATION generalized (g'/g)-expansion method TRAVELINg Wave Solutions
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General Solution of Two Generalized Form of Burgers Equation by Using the (<i>G</i><sup>'</sup>/<i>G</i>)-Expansion Method 被引量:1
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作者 Abdollah Borhanifar Reza Abazari 《Applied Mathematics》 2012年第2期158-168,共11页
In this work, the (G'/G)-expansion method is proposed for constructing more general exact solutions of two general form of Burgers type equation arising in fluid mechanics namely, Burgers-Korteweg-de Vries (Burger... In this work, the (G'/G)-expansion method is proposed for constructing more general exact solutions of two general form of Burgers type equation arising in fluid mechanics namely, Burgers-Korteweg-de Vries (Burgers-KdV) and Burger-Fisher equations. Our work is motivated by the fact that the (G'/G)-expansion method provides not only more general forms of solutions but also periodic and solitary waves. If we set the parameters in the obtained wider set of solutions as special values, then some previously known solutions can be recovered. The method appears to be easier and faster by means of a symbolic computation system. 展开更多
关键词 (g'/g)-expansion method gENERALIZED Burgers-KdV EQUATION gENERALIZED Burgers-Fisher EQUATION Hyperbolic FUNCTION SOLUTIONS Trigonometric FUNCTION SOLUTIONS
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模板法合成g-C_(3)N_(4)基复合材料及其光催化性能的研究进展 被引量:1
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作者 唐浩宇 刘成宝 +4 位作者 陈丰 钱君超 邱永斌 孟宪荣 陈志刚 《功能材料》 CAS CSCD 北大核心 2024年第4期4062-4071,共10页
石墨相氮化碳(g-C_(3)N_(4))作为一种新型非金属高聚物半导体,具有易于合成、无毒无害、耐酸碱腐蚀、环境亲和性好等性质。独特的层状结构赋予了其较高的比表面积,适中的禁带宽度给予了其较好的光催化性能,使得其在光催化领域受到了广... 石墨相氮化碳(g-C_(3)N_(4))作为一种新型非金属高聚物半导体,具有易于合成、无毒无害、耐酸碱腐蚀、环境亲和性好等性质。独特的层状结构赋予了其较高的比表面积,适中的禁带宽度给予了其较好的光催化性能,使得其在光催化领域受到了广泛的关注。然而,纯相g-C_(3)N_(4)存在着比表面积小、活性位点不足、载流子复合过快和氧化还原能力偏弱等缺点,制约了其光催化领域的有效应用。研究表明,使用模板诱导工艺对g-C_(3)N_(4)进行结构调控可以有效解决上述问题。综述了目前常用于制备石墨相氮化碳的模板法(即硬模板法、软模板法和生物模板法),扩展讨论了多相复合工艺的进展情况,并归纳总结了g-C_(3)N_(4)基材料在光催化降解、CO_(2)转化和制氢等方面的应用情况。 展开更多
关键词 类石墨相氮化碳 光催化 模板法诱导
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Analytical Treatment of the Evolutionary (1 + 1)-Dimensional Combined KdV-mKdV Equation via the Novel (G'/G)-Expansion Method 被引量:1
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作者 Md. Nur Alam Fethi Bin Muhammad Belgacem M. Ali Akbar 《Journal of Applied Mathematics and Physics》 2015年第12期1571-1579,共9页
The novel (G'/G)-expansion method is a powerful and simple technique for finding exact traveling wave solutions to nonlinear evolution equations (NLEEs). In this article, we study explicit exact traveling wave sol... The novel (G'/G)-expansion method is a powerful and simple technique for finding exact traveling wave solutions to nonlinear evolution equations (NLEEs). In this article, we study explicit exact traveling wave solutions for the (1 + 1)-dimensional combined KdV-mKdV equation by using the novel (G'/G)-expansion method. Consequently, various traveling wave solutions patterns including solitary wave solutions, periodic solutions, and kinks are detected and exhibited. 展开更多
关键词 Novel (g'/g)-expansion method (1 + 1)-Dimensional COMBINED KdV-mKdV EQUATION Kink Patterns Nonlinear Evolution EQUATION Solitary WAVE SOLUTIONS Traveling WAVE SOLUTIONS
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Exact solutions for the coupled Klein-Gordon-Schrǒdinger equations using the extended F-expansion method 被引量:1
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作者 何红生 陈江 杨孔庆 《Chinese Physics B》 SCIE EI CAS CSCD 2005年第10期1926-1931,共6页
The extended F-expansion method or mapping method is used to construct exact solutions for the coupled KleinGordon Schr/Sdinger equations (K-G-S equations) by the aid of the symbolic computation system Mathematica. ... The extended F-expansion method or mapping method is used to construct exact solutions for the coupled KleinGordon Schr/Sdinger equations (K-G-S equations) by the aid of the symbolic computation system Mathematica. More solutions in the Jacobi elliptic function form are obtained, including the single Jacobi elliptic function solutions, combined Jacobi elliptic function solutions, rational solutions, triangular solutions, soliton solutions and combined soliton solutions. 展开更多
关键词 extended F-expansion method exact solutions coupled K-g-S equations Jacobi elliptic function
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Exact solutions of the nonlinear differential-difference equations associated with the nonlinear electrical transmission line through a variable-coefficient discrete(G'/G)-expansion method
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作者 Sadou Abdoulkary Alidou Mohamadou +1 位作者 Ousmanou Dafounansou Serge Yamigno Doka 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第12期117-123,共7页
We investigated exact traveling soliton solutions for the nonlinear electrical transmission line. By applying a concise and straightforward method, the variable-coefficient discrete(G /G)-expansion method, we solve ... We investigated exact traveling soliton solutions for the nonlinear electrical transmission line. By applying a concise and straightforward method, the variable-coefficient discrete(G /G)-expansion method, we solve the nonlinear differential–difference equations associated with the network. We obtain some exact traveling wave solutions which include hyperbolic function solution, trigonometric function solution, rational solutions with arbitrary function, bright as well as dark solutions. 展开更多
关键词 nonlinear transmission line discrete(g /g)-expansion method solitary waves
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Bi_(2)WO_(6)/g-C_(3)N_(4)复合光催化剂的制备及其光催化性能研究 被引量:1
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作者 韩碧波 刘世凯 +3 位作者 宋志健 王嘉琳 吴昊承 闫国晋 《现代化工》 CAS CSCD 北大核心 2024年第4期175-179,共5页
以尿素、硝酸铋、钨酸钠等为主要原料,在热缩聚法制备g-C_(3)N_(4)的基础上,通过水热法制备Bi_(2)WO_(6)/g-C_(3)N_(4)复合光催化剂。在模拟太阳光照射下,研究Bi_(2)WO_(6)/g-C_(3)N_(4)复合光催化剂对甲基橙的光催化降解性能。结果表明... 以尿素、硝酸铋、钨酸钠等为主要原料,在热缩聚法制备g-C_(3)N_(4)的基础上,通过水热法制备Bi_(2)WO_(6)/g-C_(3)N_(4)复合光催化剂。在模拟太阳光照射下,研究Bi_(2)WO_(6)/g-C_(3)N_(4)复合光催化剂对甲基橙的光催化降解性能。结果表明,复合光催化剂相比于单体光催化剂的性能有显著提高。在Bi_(2)WO_(6)与g-C_(3)N_(4)质量比为2∶1、水热温度为180℃、水热时间为12 h条件下,复合光催化剂的性能最好。光照时间210 min时,甲基橙降解率达到了98.15%,相比于单体Bi_(2)WO_(6)和g-C_(3)N_(4)光催化剂的效率分别提高了25.1%和37.7%,且光催化降解过程符合一级动力学方程。复合光催化剂具有优异的稳定性,经过4次重复性实验,甲基橙降解率仍达到95.17%。 展开更多
关键词 g-C_(3)N_(4) Bi_(2)WO_(6) 水热法 光催化 甲基橙
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A Generalized Tanh-Function Type Method and the(G'/G) -Expansion Method for Solving
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作者 Weimin Zhang 《Applied Mathematics》 2013年第10期11-16,共6页
In this paper a generalized tanh-function type method is proposed by using the idea of the transformed rational function method. We show that the (G'/G)?-expansion method is a special case of the generalized tanh-... In this paper a generalized tanh-function type method is proposed by using the idea of the transformed rational function method. We show that the (G'/G)?-expansion method is a special case of the generalized tanh-function type method, so the (G'/G)?-expansion method is considered as a special deformation application of the transformed rational function method. We demonstrate that all solutions obtained by the (G'/G)?-expansion method were found by the generalized tanh-function type method. As applications, we consider mKdV equation. Compared with the (G'/G) -expansion method, the generalized tanh-function type method gives new and more abundant solutions. 展开更多
关键词 The gENERALIZED TANH-FUNCTION method (g'/g) -expansion method MKDV Equation The Transformed RATIONAL Function
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The Basic (<i>G'/G</i>)-Expansion Method for the Fourth Order Boussinesq Equation
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作者 Hasibun Naher Farah Aini Abdullah 《Applied Mathematics》 2012年第10期1144-1152,共9页
The (G'/G)-expansion method is simple and powerful mathematical tool for constructing traveling wave solutions of nonlinear evolution equations which arise in engineering sciences, mathematical physics and real ti... The (G'/G)-expansion method is simple and powerful mathematical tool for constructing traveling wave solutions of nonlinear evolution equations which arise in engineering sciences, mathematical physics and real time application fields. In this article, we have obtained exact traveling wave solutions of the nonlinear partial differential equation, namely, the fourth order Boussinesq equation involving parameters via the (G'/G)-expansion method. In this method, the general solution of the second order linear ordinary differential equation with constant coefficients is implemented. Further, the solitons and periodic solutions are described through three different families. In addition, some of obtained solutions are described in the figures with the aid of commercial software Maple. 展开更多
关键词 The (g'/g)-expansion method the Fourth Order BOUSSINESQ Equation TRAVELINg Wave Solutions Nonlinear Partial Differntial Equations
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