Improving thermal stability and light fastness of Acid Red 114 by incorporating its anions in a ZnAl

来源 :颗粒学报(英文版) | 被引量 : 0次 | 上传用户:ln466985609
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Incorporation of anions of Acid Red 114 dye (1,3-naphthalenedisulfonic acid,8-[2-[3,3'-dimethyl-4'-[2-[4-[[(4-methylphenyl)sulfonyl]oxy] phenyl]diazenyl] [1,1'-biphenyl]-4-yl]diazenyl]-7-hydroxy-,disodium salt) (denoted as NPDA) into ZnAl-layered double hydroxides (LDHs) has been carried out by an anionexchange method in an effort to improve their thermal stability and light fastness.After intercalation of NPDA anions,the interlayer distance of the LDHs increases from 0.87 to 2.18nm,confirming their incorporation into the interlayer galleries of the LDHs host.Infrared spectroscopy and thermogravimetric analysis revealed the presence of host-guest interactions between LDHs layers and NPDA anions.The thermal stability of NPDA and ZnAl-NPDA-LDHs was compared by thermogravimetric-differential thermal analysis,UV-visible spectroscopy and infrared spectroscopy.It was found that the thermal stability of NPDA anions was markedly improved by incorporation into the ZnAl-LDHs matrix,while the light fastness was also enhanced.
其他文献
In this article,we study the existence of nontrivial solutions for a class of asymptotically linear Hamiltonian systems with Lagrangian boundary conditions by t
The existence of solutions is obtained for a class of the non-periodic Schr(ǒ)dinger equation -△u + V(x)u =f(x,u),x ∈ RN,by the generalized mountain pass the
In this paper,a chemotaxis model with reproduction term in a bounded domain Ω (∈) Rn is discussed.The existence of a global-in-time solution and a global attr
In this paper the authors consider the existence and uniqueness of the solution to the initial boundary value problem for a class of modified Zakharov equations
A clean,fast,and facile oxidation of multiwalled carbon nanotubes (MWCNTs) by H2O2/heteropolyacid (H3PW12O40) gave highly carboxylated MWCNTs under mild conditi
A sensitive optical waveguide(OWG) sensor which can be used to detect volatile organic compounds(VOCs) was presented.The sensing device(element) was fabricated
Response surface methodology was used to optimize the extraction conditions of polysaccharides from Undaria pinnatifida.The effects of three independent variabl
Ga(ClO4)3-catalyzed reaction of 1,2-aryldiamines and a-bromoketones to afford 2-substituted quinoxalines in good yields is described.The reaction proceeded via
In an attempt to develop potent antitumor agents,new rhodacyanine analogues containing the pyridinium ring (5a-5h),the isoquinolinium ring (6a-6c) and the quino
Catalytic decomposition of methane using a Fe-based catalyst for hydrogen production has been studied in this work.A Fe/Al2O3 catalyst previously developed by o