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Preparation of MnO2 Loaded Hydrothermal Carbon-coated Electrospun PAN Fiber Membranes for Highly Efficient Adsorption and Separation of cationic dye

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Chemical Research in Chinese Universities 2020年第6期36卷 1292-1301页

作者： WANG Yuannan LI Wenyan CHAO Shen LI Yanzi LI Xiang HE Dayong WANG Ce Alan G.MacDiarmid Institute College of ChemistryJilin UniversityChangchun 130012P.R.China Teaching Experimental Center Hebei Normal University for NationalitiesChengde 067000P.R.China

Hydrothermal carbonaceous materials and MnO2 have been proved to be promising adsorbents to remove organic dyes from *** this study,flexible MnO2 loaded hydrothermal carbon-coated electrospun poly-acrylonitrile(AC/MnO/PAN)fiber membranes were fabricated by a facile one-step hydrothermal method and activated by NaOH *** composite fibers exhibited large adsorption capacity toward cationic dyes and ex-cellent mechanical *** adsorption performance can be ftted well with pseudo-second order model and Langmuir isotherm *** maximum adsorption for methylene blue(MB),methyI violet(MV)and malachite green(MG)are 1173.27,1106.31 and 1129.89 mg/g,respectively,according to Langmuir *** AC/MnO/PAN fiber membrane also showed satisfactory performances for selective adsorption and *** addition,based on selective adsorption,the AC/MnOz/PAN fiber membranes that are repulsive to the anionic dye methyl orange(MO)can separate the MB/MO mixture solution by dynamic ***,this work not only provides a facile strategy to fabricate large capacity adsorbents,but also dermonstrates the potential appications in the dye wastewater treatment field.

关键词： Carbon MnO One-step hydrothermal Electrospinning Adsorption cationic dye

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Adsorption of cationic Laser dye onto Polymer/Surfactant Complex Film

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Chinese Journal of Chemical Physics 2011年第3期24卷 348-352,I0004页

作者： Pabitra Kuiilar Paul Syed Arshad Hussain Debajyoti Bhattacharjee Mrinal Pal 印度贾达沃普尔大学物理系尔各答-700032 印度特里普拉邦大学物理系 Suryamaninagar-799130 印度中央机械工程研究所杜尔加布尔-713209

Fabrication of complex molecular films of organic materials is one of the most important issues in modern nanoscience and nanotechnology. Soft materials with flexible properties have been given much attention and can be obtained through bottom up processing from functional molecules, where self-assembly based on supramolecular chemistry and designed assembly have become crucial processes and technologies. In this work, we report the successful incorporation of cationic laser dye rhodamine 6G abbreviated as R6G into the pre-assembled polyelectrolyte/surfactant complex film onto quartz substrate by electrostatic adsorption technique. Poly（allylamine hydrochloride）（PAH） was used as polycation and sodium dodecyl sulphate （SDS） was used as anionic surfactant. UV-Vis absorption spectroscopic characterization reveals the formation of only H-type aggregates of R6G in their aqueous solution and both H- and J-type aggregates in PAH/SDS/R6G complex layer-bylayber films as well as the adsorption kinetics of R6G onto the complex films. The ratio of the absorbance intensity of two aggregated bands in PAH/SDS/R6G complex fihns is merely independent of the concentration range of the SDS solution used to fabricate PAH/SDS complex self-assembled films. Atomic force microscopy reveals the formation of R6G aggregates in PAH/SDS/R6G complex films.

关键词： Layer-by-layer self assembly cationic dye Electrostatic adsorption UV-Vis absorption spectroscopy

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Studies on the Crystallization Properties and Morphology Structure of the cationic dyeable Polypropylene Fibers

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Journal of Donghua University(English Edition) 2004年第1期21卷 128-130页

作者：宓林坤陈国康 Plastics Division SINOPEC Shanghai Petrochemical Co. Ltd. Shanghai 200540 Plastics Division SINOPEC Shanghai Petrochemical Co. Ltd. Shanghai 200540he crystallization properties and morphology structure of the cationic dyeable polypropylene fibers which were produced by the blending spinning method were studied by making use of X-ray and scanning electron microscopy (SEM). It comes to the conclusions that the larger the crystallite size in the fibers is the better the dyeable properties of the fibers are and there is a little compatibility between the dyeable agent and polypropylene resin. And the dye-uptake of the fibers may be up to 90% because the dyeable agent can uniformly be scattered in polypropylene.

The crystallization properties and morphology structure of the cationic dyeable polypropylene fibers which were produced by the blending spinning method were studied by making use of X-ray and scanning electron microscopy (SEM). It comes to the conclusions that the larger the crystallite size in the fibers is , the better the dyeable properties of the fibers are and there is a little compatibility between the dyeable agent and polypropylene resin. And the dye-uptake of the fibers may be up to 90% because the dyeable agent can uniformly be scattered in polypropylene.

关键词： cationic dye polypropylene fiber crystallization property morphological structure

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Removal of cationic dyes by Polyphenylene Sulfide-based Strong Acid Ion Exchange Fiber

Removal of Cationic Dyes by Polyphenylene Sulfide-based Stro...

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中国材料大会2012

作者： Dongju Zhou Xianrui Li Hui Ni Siguo Yuan School of Chemical Engineering and Energy Zhengzhou University School of Chemical and Pharmaceutical Engineering Henan University of Science and Technology

ISBN: (纸本)9783037856062;3037856068

PPS-based strong acid ion exchange fiber was used to absorb cationic dye basic fuchsin and methyl blue in solution. The experimental results showed that the amount of methylene blue and basic fuchsin absorbed increased respectively with increasing of initial concentration from 100 to 600 mg/L. The adsorption capacity of the fiber was up to 604.81mg/g of basic fuchsin and to 618.94mg/g of methylene blue. The removal rate of the methylene blue reached 99.9% from 100 to 500mg/L, but of basic fuchsin from 100 to 300mg/L. Adsorption kinetic equation for basic fuchsin can be expressed as a pseudo-second-order dynamic process. The fiber is to be perfect prospect for the wastewater treatment because of its high adsorptive capacity and diffusion rate.

关键词： Polyphenylene sulfide Ion exchange fiber cationic dye Adsorption.

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dyeing Properties and Process of Parster Fiber

Dyeing Properties and Process of Parster Fiber

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2012上海纺织服装创意设计研究生学术论坛

作者： Yan Yang Yong Shen Guo-Deng Tan Shanghai University of Engineering Science

＜正＞In this study,the XRD,FT-IR and DSC were used to characterize the crystallinity,functional groups and thermal properties of Parster *** kinetics and adsorption isotherm of Parster fiber dyed by Astrazon Red FBL,Astrazon Golden Yellow GL-E and Astrazon Blue FGGL were *** effect of Parster fiber’s dye uptake influenced by dyeing temperature,time and pH of dye solution were *** results indicated that crystallinity and glass transition temperature of Parster fiber were both low and there were some sulfonic acid groups in *** 90℃,dye uptake of Parster fiber became fast,and achieved balance at 98℃after 60min boiling *** was shown that Langmuir model could fit the experimental adsorption isotherm data better.

关键词： Parster fiber cationic dye dyeing properties

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