期刊:
CHEMICAL REVIEWS,2014年114(9):4918-4959 ISSN:0009-2665
通讯作者:
Yoon, Juyoung
作者机构:
[Zhang, Xin; Yoon, Juyoung; Yin, Jun] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea.;[Zhang, Xin; Yoon, Juyoung; Yin, Jun] Ewha Womans Univ, Dept Bioinspired Sci WCU, Seoul 120750, South Korea.;[Yin, Jun] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
通讯机构:
[Yoon, Juyoung] E;Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 120750, South Korea.
摘要:
The use of fluorescence and colorimetric chemosensors to detect chiral molecules has been a central focus of recent efforts in the field of sensor technologies, owing to the fact that enantiomerically pure compounds and drugs have unparalleled importance in bioscience, clinical medicine, and bionics areas. The most involved chiral recognition mechanism with these sensors is based on hydrogen bond interaction that is employed successfully in organic solvents. This confines these sensors to be used for the water-soluble chiral analyte detections and the chiral recognition applications in physiological environment. The development of the chiral sensors that can be used efficiently in aqueous solutions, such as boronic acid-based sensors or electrostatic sensing systems, should be the focused task in this area. The polymer-based sensors have the capacities to amplify the chiral recognition signal further enhancing the sensitivity and the enantioselectivity. Those macrocyclic scaffolds can utilize their rigid structures to improve the enantioselectivity in the chiral recognition process.
作者机构:
[Burke, Karen M.; Qin, Guang-You; Majumder, Abhijit] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48201 USA.;[Buzzatti, Alessandro; Wang, Xin-Nian] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.;[Qin, Guang-You; Chang, Ningbo; Zhang, Hanzhong; Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Qin, Guang-You; Chang, Ningbo; Zhang, Hanzhong; Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Gale, Charles; Jeon, Sangyong] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
通讯机构:
[Wang, Xin-Nian] L;Lawrence Berkeley Natl Lab, Div Nucl Sci, MS 70R0319, Berkeley, CA 94720 USA.
摘要:
Within five different approaches to parton propagation and energy loss in dense matter, a phenomenological study of experimental data on suppression of large- pT single inclusive hadrons in heavy-ion collisions at both the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) was carried out. The evolution of bulk medium used in the study for parton propagation was given by 2 + 1 dimensional or 3 + 1 dimensional hydrodynamic models which are also constrained by experimental data on bulk hadron spectra. Values for the jet transport parameter q̂ at the center of the most central heavy-ion collisions are extracted or calculated within each model, with parameters for the medium properties that are constrained by experimental data on the hadron suppression factor RAA. For a quark with initial energy of 10 GeV we find that q̂≈1.2±0.3 GeV 2/fm at an initial time τ0=0.6 fm/ c in Au + Au collisions at s=200 GeV/n and q̂≈1.9±0.7 GeV 2/fm in Pb + Pb collisions at s=2.76 TeV/n. Compared to earlier studies, these represent significant convergence on values of the extracted jet transport parameter due to new constraints provided by recent experiment data from the LHC.
作者机构:
[Bhattacharya, Tanmoy; Gupta, Rajan] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA.;[Vranas, P. M.; Buchoff, Michael I.; Soltz, R. A.; Schroeder, Chris] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA.;[Buchoff, Michael I.] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA.;[Christ, Norman H.; Renfrew, Dwight; Murphy, David; Yin, Hantao; Mawhinney, R. D.; McGlynn, Greg; Lin, Zhongjie] Columbia Univ, Dept Phys, New York, NY 10027 USA.;[Ding, H. -T.] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
通讯机构:
[Bhattacharya, Tanmoy] L;Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87544 USA.
摘要:
We report on the first lattice calculation of the QCD phase transition using chiral fermions with physical quark masses. This calculation uses 2+1 quark flavors, spatial volumes between (4 fm)3 and (11 fm)3 and temperatures between 139 and 196 MeV. Each temperature is calculated at a single lattice spacing corresponding to a temporal Euclidean extent of Nt=8. The disconnected chiral susceptibility, χdisc shows a pronounced peak whose position and height depend sensitively on the quark mass. We find no metastability near the peak and a peak height which does not change when a 5 fm spatial extent is increased to 10 fm. Each result is strong evidence that the QCD “phase transition” is not first order but a continuous crossover for mπ=135 MeV. The peak location determines a pseudocritical temperature Tc=155(1)(8) MeV, in agreement with earlier staggered fermion results. However, the peak height is 50% greater than that suggested by previous staggered results. Chiral SU(2)L×SU(2)R symmetry is fully restored above 164 MeV, but anomalous U(1)A symmetry breaking is nonzero above Tc and vanishes as T is increased to 196 MeV.
期刊:
Journal of Differential Equations,2014年257(2):566-600 ISSN:0022-0396
通讯作者:
Li, Gongbao
作者机构:
[Li, Gongbao] Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.
通讯机构:
[Li, Gongbao] C;Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
关键词:
Kirchhoff equation;Ground state solutions;Pohoz̆aev type identity;Variational methods
摘要:
In this paper, we study the following nonlinear problem of Kirchhoff type with pure power nonlinearities: {-(a + b integral(R3) vertical bar Du vertical bar(2)) Delta u + V(x)u = vertical bar u vertical bar(p-1)u, x is an element of R-3, (0.1) u is an element of H-1 (R-3), u > 0, x is an element of R-3, where a, b > 0 are constants, 2 < p < 5 and V : R-3 -> R. Under certain assumptions on V. we prove that (0.1) has a positive ground state solution by using a monotonicity trick and a new version of global compactness lemma. Our main results especially solve problem (0.1) in the case where p is an element of (2, 3], which has been an open problem for Kirchhoff equations and can be viewed as a partial extension of a recent result of He and Zou in [14] concerning the existence of positive solutions to the nonlinear Kirchhoff problem {-(epsilon(2)a + epsilon b integral(R3) vertical bar Du vertical bar(2)) Delta u + V(x)u = f(u), x is an element of R-3, u is an element of H-1 (R-3), u > 0, x is an element of R-3, where epsilon > 0 is a parameter, V(x) is a positive continuous potential and f (u) similar to vertical bar u vertical bar(p-1)u with 3 < p < 5 and satisfies the Ambrosetti-Rabinowitz type condition. Our main results extend also the arguments used in [7,33], which deal with Schrodinger-Poisson system with pure power nonlinearities, to the Kirchhoff type problem. (C) 2014 Elsevier Inc. All rights reserved.
作者机构:
[Jans, E.; Ketel, T.; van den Brand, J.; Tuning, N.; Tolk, S.; Pellegrino, A.; Syropoulos, V.; van Tilburg, J.; Santos, D. Martinez; Merk, M.; Ali, S.; Koppenburg, P.; Tsopelas, P.; Snoek, H.; de Vries, J. A.; Koopman, R. F.; Heijne, V.; van Leerdam, J.; Raven, G.; Aaij, R.; Lambert, R. W.; De Bruyn, K.; Oggero, S.; Kozlinskiy, A.; David, P. N. Y.; van Beuzekom, M.; Schiller, M.; Farinelli, C.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Hicheur, A.; Gomes, A.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Ferreira Rodrigues, F.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.;[Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Carvalho Akiba, K.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Francisco, O.; De Paula, L.; Nasteva, I.; Gandelman, M.; Amato, S.; Rangel, M. S.; Salustino Guimaraes, V.; Vieira, D.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.;[Gao, Y.; Yang, Z.; Wu, S.; Li, Y.; Zhang, Y.; Yuan, X.; Zhong, L.; Jing, F.; An, L.; Lu, H.] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China.;[Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, P.; Qian, W.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; Lees, J. -P.; T'Jampens, S.; Minard, M. -N.; Artamonov, A.; Machefert, F.; Deleage, N.] Univ Savoie, CNRS, IN2P3, LAPP, Annecy Le Vieux, France.
作者机构:
[Bazavov, A.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52240 USA.;[Bhattacharya, Tanmoy; Gupta, Rajan] Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.;[Levkova, L.; DeTar, C.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.;[Ding, H. -T.; Hegde, P.] Cent China Normal Univ, Inst Particle Phys, Key Lab Quark Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Gottlieb, Steven; Wagner, M.] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
通讯机构:
[Bazavov, A.] U;Univ Iowa, Dept Phys & Astron, Iowa City, IA 52240 USA.
摘要:
We present results for the equation of state in ( 2+1)-flavor QCD using the highly improved staggered quark action and lattices with temporal extent Nτ=6, 8, 10, and 12. We show that these data can be reliably extrapolated to the continuum limit and obtain a number of thermodynamic quantities and the speed of sound in the temperature range 130–400 MeV. We compare our results with previous calculations and provide an analytic parameterization of the pressure, from which other thermodynamic quantities can be calculated, for use in phenomenology. We show that the energy density in the crossover region, 145 MeV≤T≤163 MeV, defined by the chiral transition, is εc=(0.18–0.5) GeV/fm3, i.e., (1.2–3.1) εnuclear. At high temperatures, we compare our results with resummed and dimensionally reduced perturbation theory calculations. As a byproduct of our analyses, we obtain the values of the scale parameters r0 from the static quark potential and w0 from the gradient flow.
作者机构:
[Zhang, Lizhi; Li, Hao; Shi, Jingu; Zhao, Kun] Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.
通讯机构:
[Zhang, Lizhi] C;Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.
摘要:
We demonstrate that oxygen vacancies on the {001} facets of BiOCl nanosheets can more sustainably activate molecular oxygen for organic pollutant removal under solar light than the TiO2 counterparts. The oxygen vacancies on the {001} facets of BiOCl nanosheets are effectively refreshed by UV light, and are also responsible for the efficient utilization of visible light to activate molecular oxygen, accounting for their long term stability and high efficiency.
期刊:
Journal of Differential Equations,2014年257(6):1721-1752 ISSN:0022-0396
通讯作者:
Huang, Jicai
作者机构:
[Huang, Jicai; Song, Jing] Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Hubei, Peoples R China.;[Ruan, Shigui] Univ Miami, Dept Math, Coral Gables, FL 33124 USA.
通讯机构:
[Huang, Jicai] C;Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Hubei, Peoples R China.
关键词:
Predator–prey system;Holling type-III functional response;Hopf bifurcation;Bogdanov–Takens bifurcation;Degenerate focus type BT bifurcation of codim 3
摘要:
We consider a predator-prey system of Leslie type with generalized Holling type III functional response p(x) = mx(2)/ax(2)+bx+1. By allowing b to be negative (b > -2 root a), p(x) is monotonic for b > 0 and nonmonotonic for b < 0 when x >= 0. The model has two non-hyperbolic positive equilibria (one is a multiple focus of multiplicity one and the other is a cusp of codimension 2) for some values of parameters and a degenerate Bogdanov-Takens singularity (focus or center case) of codimension 3 for other values of parameters. When there exist a multiple focus of multiplicity one and a cusp of codimension 2, we show that the model exhibits subcritical Hopf bifurcation and Bogdanov-Takens bifurcation simultaneously in the corresponding small neighborhoods of the two degenerate equilibria, respectively. Different phase portraits of the model are obtained by computer numerical simulations which demonstrate that the model can have: (i) a stable limit cycle enclosing two non-hyperbolic positive equilibria; (ii) a stable limit cycle enclosing an unstable homoclinic loop; (iii) two limit cycles enclosing a hyperbolic positive equilibrium; (iv) one stable limit cycle enclosing three hyperbolic positive equilibria; or (v) the coexistence of three stable states (two stable equilibria and a stable limit cycle). When the model has a Bogdanov-Takens singularity of codimension 3, we prove that the model exhibits degenerate focus type Bogdanov-Takens bifurcation of codimension 3. These results not only demonstrate that the dynamics of this model when b > -2 root a are much more complex and far richer than the case when b > 0 but also provide new bifurcation phenomena for predator-prey systems. (C) 2014 Elsevier Inc. All rights reserved.
通讯机构:
[Abelev, B.] L;Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
摘要:
In this Letter, comprehensive results on pi(+/-), K-+/-, K-S(0), p((p) over bar) and A((A) over bar) production at mid-rapidity (0 < y(CMS) < 0.5) in p-Pb collisions at root s(NN) = 5.02 TeV, measured by the ALICE detector at the LHC, are reported. The transverse momentum distributions exhibit a hardening as a function of event multiplicity, which is stronger for heavier particles. This behavior is similar to what has been observed in pp and Pb-Pb collisions at the LHC. The measured pr distributions are compared to d-Au, Au-Au and Pb-Pb results at lower energy and with predictions based on QCD-inspired and hydrodynamic models. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.
摘要:
ALICE is the heavy-ion experiment at the CERN Large Hadron Collider. The experiment continuously took data during the first physics campaign of the machine from fall 2009 until early 2013, using proton and lead-ion beams. In this paper we describe the running environment and the data handling procedures, and discuss the performance of the ALICE detectors and analysis methods for various physics observables.
作者机构:
[Yu, B. X.; Mao, Z. P.; Zhao, Q.; Lu, J. G.; Liu, Zhiqiang; Chen, Y. B.; He, M.; Hu, T.; Wang, Z.; Liu, Fang; Sun, Z. J.; Xue, Z.; Ning, Z.; Zhang, C. C.; Wen, S. P.; Sun, G. X.; Zhang, D. H.; Li, C. H.; Yuan, C. Z.; Min, J.; Zhang, H. Y.; Zhao, Ling; Chen, M. L.; Ma, T.; Zhu, Z. A.; Xu, G. F.; Wang, K.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Hou, Z. L.; Rong, G.; Li, Lei; Sun, Y. Z.; Liu, B. J.; Min, T. J.; Wang, Y. F.; Zhu, K. J.; Liu, H. M.; Li, Q. J.; Ma, H. L.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Ye, M.; Xie, Y. G.; Sheng, H. Y.; Ouyang, Q.; Song, X. Y.; Ma, S.; Zou, B. S.; Chen, H. S.; Ji, X. B.; Zhang, J. Q.; Qian, S.; Wang, P.; Deng, Z. Y.; Ma, Q. M.; Dong, M. Y.; Fang, S. S.; Chang, J. F.; Wang, Z. Y.; Zhao, T. C.; Liu, Z. A.; Cai, X.; Lv, M.; Wu, N.; Zhang, Y. H.; Wang, Q. J.; An, F. F.; Ye, H.; Sun, S. S.; Fu, C. D.; Zhang, Y.; Lou, X. C.; Zou, J. H.; Wang, Z. G.; Zhang, J. L.; Jiang, L. L.; Zhang, B. X.; Zhang, X. J.; Lai, W.; Li, W. G.; Cao, G. F.; Mo, X. H.; Zhou, L.; Wu, L. H.; Fang, J.; Zhao, Y. B.; Huang, L.; Shen, X. Y.; Zheng, J. P.; Zhu, Y. S.; Li, X. N.; Zhang, B. Y.; Jiang, X. S.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Ma, X. Y.; Hu, H. M.; Li, K.; Gong, W. X.; Dai, J. P.; Wang, P. L.; Zhao, G.; Wang, B.; Yuan, Y.; Wu, Z.; Chu, Y. P.; Luo, X. L.; Ji, X. L.; Li, H. B.; Zhuang, J.; Li, J. C.; Liu, Zhiqing; Zhang, S. H.; Li, F.; Zhang, J. Y.; Wang, L. S.; Jin, S.; Tang, X.; Song, W. M.; Yang, H. X.; Qin, Z. H.; Li, G.; Zhang, J. Z.; He, K. L.; Chen, G.; Ping, R. G.; Qiu, J. F.; Zhao, J. W.; Chen, J. C.; Ablikim, M.; Han, Y. L.; Liu, C. X.; Zhu, K.; Qin, X. S.; Dai, H. L.; Li, W. D.; Bai, J. Z.] Inst High Energy Phys, Beijing 100049, Peoples R China.;[Shen, C. P.] Beihang Univ, Beijing 100191, Peoples R China.;[Leyhe, M.; Wiedner, U.; Becker, J.; Pelizaeus, M.; Kopf, B.; Friedel, P.; Held, T.] Ruhr Univ Bochum, D-44780 Bochum, Germany.;[Briere, R. A.; Liu, C. L.; Albayrak, O.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.;[Yang, Y.; Liu, Feng; Huang, G. M.; Zhang, Zhenghao] Cent China Normal Univ, Wuhan 430079, Peoples R China.
通讯机构:
[Ablikim, M.] I;Inst High Energy Phys, Beijing 100049, Peoples R China.
作者机构:
[Yu, B. X.; Mao, Z. P.; Zhao, Q.; Lu, J. G.; Liu, Zhiqiang; Chen, Y. B.; He, M.; Hu, T.; Wang, Z.; Liu, Fang; Sun, Z. J.; Xue, Z.; Ning, Z.; Zhang, C. C.; Wen, S. P.; Sun, G. X.; Zhang, D. H.; Li, C. H.; Yuan, C. Z.; Zhao, H. S.; Min, J.; Zhang, H. Y.; Zhao, Ling; Chen, M. L.; Ma, T.; Zhu, Z. A.; Sun, D. H.; Xu, G. F.; Wang, K.; Heng, Y. K.; Ji, Q.; Zhang, J. W.; Hou, Z. L.; Rong, G.; Li, Lei; Sun, Y. Z.; Liu, B. J.; Min, T. J.; Wang, Y. F.; Zhu, K. J.; Liu, H. M.; Li, Q. J.; Ma, H. L.; Wang, L. L.; Jin, D. P.; Xiu, Q. L.; Ye, M.; Xie, Y. G.; Sheng, H. Y.; Ouyang, Q.; Song, X. Y.; Ma, S.; Zou, B. S.; Chen, H. S.; Ji, X. B.; Zhang, J. Q.; Qian, S.; Wang, P.; Deng, Z. Y.; Ma, Q. M.; Dong, M. Y.; Zhu, C.; Fang, S. S.; Chang, J. F.; Wang, Z. Y.; Zhao, T. C.; Liu, Z. A.; Cai, X.; Lv, M.; Wu, N.; Zhang, Y. H.; Wang, Q. J.; An, F. F.; Ye, H.; Sun, S. S.; Fu, C. D.; Zhang, Y.; Lou, X. C.; Zou, J. H.; Wang, Z. G.; Jiang, L. L.; Zhang, B. X.; Zhang, X. J.; Lai, W.; Li, W. G.; Cao, G. F.; Mo, X. H.; Zhou, L.; Wu, L. H.; Fang, J.; Zhao, Y. B.; Huang, L.; Shen, X. Y.; Zheng, J. P.; Zhu, Y. S.; Li, X. N.; Zhang, B. Y.; Jiang, X. S.; Gu, M. H.; Lu, Y. P.; Dong, L. Y.; Ma, X. Y.; Hu, H. M.; Gong, W. X.; Dai, J. P.; Wang, P. L.; Zhao, G.; Zhu, S. H.; Wang, B.; Yuan, Y.; Wu, Z.; Chu, Y. P.; Luo, X. L.; Ji, X. L.; Li, H. B.; Zhuang, J.; Li, J. C.; Zhang, L.; Liu, Zhiqing; Liao, X. T.; Zhang, S. H.; Li, F.; Zhang, J. Y.; Wang, L. S.; Jin, S.; Liu, H. W.; Tang, X.; Song, W. M.; Yang, H. X.; Qin, Z. H.; Li, G.; Zhang, J. Z.; He, K. L.; Liu, H.; Chen, G.; Ping, R. G.; Qiu, J. F.; Zhao, J. W.; Chen, J. C.; Ablikim, M.; Han, Y. L.; Liu, C. X.; Zhu, K.; Qin, X. S.; Dai, H. L.; Li, W. D.; Bai, J. Z.] Inst High Energy Phys, Beijing 100049, Peoples R China.;[Shen, C. P.] Beihang Univ, Beijing 100191, Peoples R China.;[Leyhe, M.; Wiedner, U.; Becker, J.; Pelizaeus, M.; Kopf, B.; Friedel, P.; Held, T.] Ruhr Univ Bochum, D-44780 Bochum, Germany.;[Spataro, S.; Briere, R. A.; Liu, C. L.; Albayrak, O.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.;[Yang, Y.; Zhang, Z. H.; Liu, Feng; Huang, G. M.] Cent China Normal Univ, Wuhan 430079, Peoples R China.
通讯机构:
[Ablikim, M.] I;Inst High Energy Phys, Beijing 100049, Peoples R China.
作者机构:
[Li, Gongbao] Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Sch Math & Stat, Wuhan 430079, Peoples R China.
通讯机构:
[Li, Gongbao] C;Cent China Normal Univ, Hubei Key Lab Math Sci, Wuhan 430079, Peoples R China.
摘要:
We study the concentration and multiplicity of weak solutions to the Kirchhoff type equation with critical Sobolev growth, -(epsilon(2)a + epsilon b integral(R3) vertical bar del u vertical bar(2))del u + V(z)u = f(u) + u(5) in R-3, u is an element of H-1(R-3), u > 0 in R-3, where e is a small positive parameter and a, b > 0 are constants, f is an element of C-1(R+, R) is subcritical, V : R-3 -> R is a locally Holder continuous function. We first prove that for epsilon(0) > 0 sufficiently small, the above problem has a weak solution u(epsilon) with exponential decay at infinity. Moreover, u(epsilon) concentrates around a local minimum point of V in Lambda as epsilon -> 0. With minimax theorems and Ljusternik-Schnirelmann theory, we also obtain multiple solutions by employing the topological construction of the set where the potential V(z) attains its minimum.
作者机构:
[Zhang, Lizhi; Li, Jie; Yu, Ying] Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.;[Li, Jie; Yu, Ying] Cent China Normal Univ, Coll Phys Sci & Technol, Inst Nanosci & Nanotechnol, Wuhan 430079, Peoples R China.
通讯机构:
[Zhang, Lizhi] C;Cent China Normal Univ, Coll Chem, Inst Environm Chem, Key Lab Pesticide & Chem Biol,Minist Educ, Wuhan 430079, Peoples R China.
摘要:
In recent years, layered bismuth oxyhalide nanomaterials have received more and more interest as promising photocatalysts because their unique layered structures endow them with fascinating physicochemical properties; thus, they have great potential photocatalytic applications for environment remediation and energy harvesting. In this article, we explore the synthesis strategies and growth mechanisms of layered bismuth oxyhalide nanomaterials, and propose design principles of tailoring a layered configuration to control the nanoarchitectures for high efficient photocatalysis. Subsequently, we focus on their layered structure dependent properties, including pH-related crystal facet exposure and phase transformation, facet-dependent photoactivity and molecular oxygen activation pathways, so as to clarify the origin of the layered structure dependent photoreactivity. Furthermore, we summarize various strategies for modulating the composition and arrangement of layered structures to enhance the photoactivity of nanostructured bismuth oxyhalides via internal electric field tuning, dehalogenation effect, surface functionalization, doping, plasmon modification, and heterojunction construction, which may offer efficient guidance for the design and construction of high-performance bismuth oxyhalide-based photocatalysis systems. Finally, we highlight some crucial issues in engineering the layered-structure mediated properties of bismuth oxyhalide photocatalysts and provide tentative suggestions for future research on increasing their photocatalytic performance.
期刊:
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2014年136(14):5351-5358 ISSN:0002-7863
通讯作者:
Ryu, Ji-Hwan
作者机构:
[Kim, Dabin; Kim, Gyoungmi; Yoon, Juyoung; Hu, Ying; Yin, Jun; Lee, Dayoung] Ewha Womans Univ, Dept Chem & Nano Sci, Global Top Res Program 5, Seoul 120750, South Korea.;[Yin, Jun] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Kwon, Younghee; Ryu, Ji-Hwan] Yonsei Univ, Coll Med, Res Ctr Human Nat Def Syst, Seoul 120752, South Korea.;[Kwon, Younghee; Ryu, Ji-Hwan] Yonsei Univ, Coll Med, BK Plus Project Med Sci 21, Seoul 120752, South Korea.
通讯机构:
[Ryu, Ji-Hwan] Y;Yonsei Univ, Coll Med, Res Ctr Human Nat Def Syst, Seoul 120752, South Korea.
作者机构:
[Jans, E.; Ketel, T.; van den Brand, J.; Tuning, N.; Tolk, S.; Pellegrino, A.; Syropoulos, V.; van Tilburg, J.; Martinelli, M.; Merk, M.; Ali, S.; Koppenburg, P.; Dettori, F.; Tsopelas, P.; Snoek, H.; Bauer, Th.; de Vries, J. A.; Koopman, R. F.; Heijne, V.; van Leerdam, J.; Raven, G.; Aaij, R.; Martinez Santos, D.; Lambert, R. W.; De Bruyn, K.; Oggero, S.; Kozlinskiy, A.; David, P. N. Y.; van Beuzekom, M.; Schiller, M.; Farinelli, C.; Hulsbergen, W.] Nikhef Natl Inst Subat Phys, Amsterdam, Netherlands.;[Hicheur, A.; Gomes, A.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Ferreira Rodrigues, F.] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.;[Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Akiba, K. Carvalho; Francisco, O.; De Paula, L.; Nasteva, I.; Gandelman, M.; Amato, S.; Rangel, M. S.; Szilard, D.; Salustino Guimaraes, V.; Vieira, D.] Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil.;[Gao, Y.; Yang, Z.; Wu, S.; Li, Y.; Zhang, Y.; Yuan, X.; Zhong, L.; Jing, F.; An, L.; Lu, H.; Zhang, F.] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China.;[Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, Ph.; Qian, W.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; Lees, J. -P.; T'Jampens, S.; Minard, M. -N.; Deleage, N.] Univ Savoie, CNRS, IN2P3, LAPP, Annecy Le Vieux, France.