【摘要】：采用超聲輔助共沉淀法制備了納米鎳/鎂鋁層狀雙金屬氫氧化物/三聚氰胺-甲醛-乙二胺四草酰乙酸螯合樹(shù)脂/活性炭復(fù)合材料(Ni/MgAl-LDHs/MFT/AC).通過(guò)場(chǎng)發(fā)射掃描電鏡(FE-SEM)、X-射線衍射儀(XRD)和傅里葉紅外光譜(FT-IR)對(duì)該復(fù)合材料的結(jié)構(gòu)和形貌進(jìn)行了表征。結(jié)果表明：在含有MFT螯合樹(shù)脂的活性炭表面上,均勻分布著花狀的IgAl-LDHs, MgAl-LDHs上分布著聚集狀的納米鎳顆粒。研究考察了2,6-二氯苯酚(2,6-DCP)在Ni/MgAl-LDHs/MFT/AC上的吸附行為,吸附機(jī)理為物理吸附,符合準(zhǔn)一階動(dòng)力學(xué)模型,吸附過(guò)程為自發(fā)性吸熱反應(yīng)。在超聲輔助條件下,Ni/MgAl-LDHs/MFT/AC可分別成功地用于2,6-DCP、染料(甲基橙、孔雀綠和亞甲基藍(lán))污水的降解。以泡沫銅電極為載體,通過(guò)苯胺的電聚合反應(yīng),將氧化石墨烯混合沉積到銅電極上,形成聚苯胺-氧化石墨烯/銅復(fù)合電極(PANI-GO/Cu);進(jìn)而將納米銅電沉積到PANI-GO/Cu表面,形成納米銅/聚苯胺-氧化石墨烯/銅復(fù)合電極(Cu/PANI-GO/Cu)。FE-SEM、XRD和FT-IR表明了該修飾電極已形成。將該電極用于水溶液中的二氧化硫催化還原。結(jié)果顯示：水溶液中的二氧化硫能被有效地還原為連二亞硫酸根。
[Abstract]:Nano-Ni / Mg-Al layered bimetallic hydroxide / melamine-formaldehyde-ethylenediamine tetraoxaloacetic acid chelating resin / activated carbon composite (Ni/MgAl-LDHs/MFT/AC) was prepared by ultrasonic assisted coprecipitation. The structure and morphology of the composite were characterized by field emission scanning electron microscopy (FE-SEM) X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The results showed that on the surface of activated carbon containing MFT chelating resin, nano-nickel nanoparticles were distributed uniformly on the flowered IgAl-LDHs, MgAl-LDHs. The adsorption behavior of 2H6-dichlorophenol on Ni/MgAl-LDHs/MFT/AC was investigated. The adsorption mechanism was physical adsorption, which was in accordance with the quasi first order kinetic model, and the adsorption process was spontaneous endothermic reaction. Ni / MgAl-LDHs / MFT / AC can be successfully used in the degradation of waste water (methyl orange malachite green and methylene blue). Using copper foam electrode as the carrier, graphene oxide was mixed onto the copper electrode by electropolymerization of aniline to form Polyaniline-graphene oxide / copper composite electrode (PANI-GO/Cu), and then nano-copper was electrodeposited on the surface of PANI-GO/Cu. Nanocrystalline copper / Polyaniline-graphene oxide / copper composite electrode (Cu/PANI-GO/Cu). FE-SEM XRD and FT-IR showed that the modified electrode had been formed. The electrode was used for the catalytic reduction of sulfur dioxide in aqueous solution. The results show that sulfur dioxide in aqueous solution can be effectively reduced to disulfite.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TQ424;X703

【共引文獻(xiàn)】

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