Layered double hydroxides (LDHs) are new nanofillers which exhibit improved thermal and flammability properties in various kinds of polymer matrices. These materials have certain advantages over conventional metal hydroxides and also layered silicates so far as the flame retardancy is concerned. In this...
layered double hydroxidescalcium alginate beadsphosphate removalsorptionbatch experimentcolumn experimentMg-Al layered double hydroxide was entrapped in calcium alginate beads (LDH-alginate beads) for phosphate removal. A field emission scanning electron microscope (FESEM), combined with an energy dispersive ...
Mg-Al layered double hydrox- ides modified clay adsorbents for efficient removal of Pb2+, Cu2+ and Ni2+ from water. Appl. Clay Sci. 123, 134-140.Yang F, Sun S, Chen X, Chang Y, Zha F and Lei Z 2016 Mg-Al layered double hydroxides modified clay adsorbents for efficient removal ...
水滑石(Layered Double Hydroxides,LDH)是具有超分子层结构的层状化合物,分子组成是MgAl2(OH)16CO3.4H2O是一种阴离子化合物,兼有氢氧化镁和氢氧化铝类似的结构和组成,受热分解时释放出大量的水和二氧化碳,并吸收大量的热,能降低燃烧体系的温度;分解释放出的水蒸汽和二氧化碳气体能稀释和阻隔可燃性气体;热分解生成的...
Layered double hydroxides (LDHs), with a chemical formula [M2+ 1−xM3+x(OH)2][An−]x/n·zH2O, where M2+ represent bivalent cations, M3+ represent trivalent cations, are made up of positively charged brucite-like layers and an interlayer region containing various anions and solvation molec...
【Key words】Mg-Al Layered Double Hydroxides;Synthesis;Characterization 0引言 材料、能源和信息是构成人类现代社会发展的三大支柱,层状双金属氢氧化物(layer double hydroxides,简称LDHs)是一类重要的新型无机功能材料,又称类水滑石,由两种或两种以上金属元素组成的具有类水滑石层状晶体结构的氢氧化物。LDHs的化学组成...
O,aredesignatedaslayered doublehydroxides(LDH),andarereadilypreparedbytheco- precipitationoftwometalsalts.Inthisformula,M 2+ andM 3+ arethedi-andtri-valentmetals,respectively,whereasA n− ,x, andyaretheinterlayeranion,theratiooftrivalentmetal,and ...
Nitrate-intercalated MgAl layered double hydroxide (LDH) was successfully delaminated in water by a facile and effective method upon reflux at 120掳C for 24h followed by sonication at 40掳C for 5h. This process is environmentally friendly since water is the only solvent used. The delaminated ...
Layereddoublehydroxides(LDHs),alsoknownasanionicclays, belongtoagroupofnon-silicatecompounds.Hydrotalciteisoneofthe most representative minerals among the group, therefore LDHs are named as hydrotalcite-like compounds (Forano et al., 2006). The general ...
Keywords:Layereddoublehydroxide;Tartrate;Intercalation;Secondstaging 1.Introduction Layereddoublehydroxides(LDHs),syntheticor naturalandcommonlyreferredtoashydrotalcitesor anionicclays,arealargefamilyofpromisingmaterials thatcanbeusedascatalysts(Cavanietal.,1991),catalyst ...