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| 1 | Preparation,characterization and catalytic oxidation property of CeO_2/Cu^(2+)-attapulgite (ATP) nanocomposites显示文摘Cerium oxide(CeO2) coated on copper modified attapulgite clay nanocomoposite(CeO2/Cu2+-ATP) was prepared by homogeneous deposition method.The microstructures of the as-prepared CeO2/Cu2+-ATP nanocomposites were characterized by X-ray diffraction(XRD),energy-dispersive spectrometer(EDS) and transmission electron microscopy(TEM).The results indicated that CeO2 particles with average size of about 5 nm were loaded onto the Cu2+-ATP and were widely dispersed.Comparing the catalytic activity of ATP/CeO2 and CeO2/Cu2+-ATP,the catalytic activity was improved when a small quantity of Cu2+ was introduced.The loading amount of CeO2 and reaction temperature had important effects on decolorization ratio of methyl orange(MO).When the loading amount and reaction temperature were 70% and 338 K,respectively,the decolorization ratio of MO reached over 99%,which showed excellent catalytic activity. | 游静 陈丰 赵晓兵 陈志刚 | 2010 | Journal of Rare Earths2010，28，S1： | 8 |
| 2 | 凹凸棒黏土对壳聚糖/海藻酸钠微球释放性能的影响显示文摘将凹凸棒黏土(ATP)与海藻酸钠(SA)进行复合以改善SA的缓释性能。以ATP/SA复合物为球芯材料,壳聚糖(CS)为包覆材料,采用复凝聚法制备凹土/海藻酸钠/壳聚糖复合微球(ASCM),并以双氯芬酸钠(DS)为模型药物,考察了凹土添加量对复合微球溶胀性能、载药性能和缓释性能的影响。结果表明,凹土的加入改善了微球的溶胀性能和缓释性能,而对微球载药性能影响不大。与海藻酸钠/壳聚糖微球(SCM)相比,当复合微球中ATP/SA(w/w)为20%时,其在pH6.8的磷酸缓冲溶液中2 h的累积释放率由58.8%减小到38.7%。复合微球体外释放动力学数据表明,其释药行为可以很好地用一级动力学方程拟合。凹土的加入有效改善了SA的缓释性能,ASCM可作为缓释药物的载体材料。 | 吴洁 丁师杰 陈静 刘超 黄娟娟 | 2014 | 高校化学工程学报2014，28，3： | 7 |
| 3 | Preparation of Palygorskite-based Phase Change Composites for Thermal Energy Storage and Their Applications in Trombe Walls显示文摘Palygorskite/paraffin phase-change composites were prepared by the combination of purified palygorskite clay and sliced paraffin. Then, this composite was used in the Trombe wall to improve its energy storage ability. Further, its energy storage ability was compared to that of ordinary concrete wall through contrastive test. The experiments show that palygorskite clay is a type of clay mineral with strong adsorption ability, and the purity of natural palygorskite clay can reach up to 97.1% after certain purification processes. Paraffin is well adsorbed by palygorskite, and the test results show that the optimal adsorption ratio is palygorskite: paraffin = 2:1(mass ratio). Palygorskite/paraffin phase change composites can be obtained by using palygorskite as the adsorbing medium to adsorb paraffin. The composite materials exhibit good heat storage(release) performance, which can store heat with increasing environment temperature and release heat with decreasing temperature. This property not only increases the inertia to environment temperature change, but also promotes the energy migration in different time and space, thus achieving a certain energy-saving effect. The application of palygorskite/paraffin phase change composite materials to the Trombe wall can significantly reduce the fluctuation of indoor temperature and enhance the thermal inertia of indoor environment. From the aspect of energy storage effect, the Trombe wall fabricated using PCMs is significantly superior to the concrete wall with the same thickness. | 施韬 LI Shanshan 张豪 LI Zexin ZHU Min | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，6： | 2 |
| 4 | Research on Tribological Characteristics and Worn Surface Self-Repairing Performance of Nano Attapulgite Powders Used in Lubricant Oil as Addictive显示文摘As a kind of natural nanometer materials,the attapulgite has been widely used in industry,agriculture,environment,food substance,medicament and many other fields.Few researches about attapulgite used in lubricant oil as additive were made,and those were only at a preliminary stage of exploration.The tribological characteristics of attapulgite powders with the different contents added to CD 15W/40 lubricant oil were researched through'plane-on-plane'configuration friction and wear tester,and the self-repairing performance of 45#steel worn surface was examined via ring-on-block configuration test.XRD,SEM,EDS,TEM were employed to analyze the surface morphologies and elementary composition of the samples'worn surface.Furthermore,wear self-repairing mechanism of attapulgite additive to lubricant oil was explored.The results showed that:the optimal content of attapulgite powders in oil CD 15W/40 was 0.5 wt%,and the stable friction coefficient can be reduced to 0.02,then the friction reduction performance can be enhanced by 82.5%;Smooth worn surface were formed of the chemical reaction film containing elements O,Si,Fe;Friction reduction and self-repairing mechanism had a relation with the crystal structure of attapulgite. | Zhang Bo Xu Binshi Xu Yi Gao Fei Zhang Baosen | 2012 | 稀有金属材料与工程2012，41，S1： | 2 |
| 5 | Preparation of polymer brushes on attapulgite surfaces via a combination of CROP and click reaction显示文摘In this work,by a combination of controlled ring-opening polymerization(CROP) and click reaction,we reported a facile and useful method to synthesize linear poly(ε-caprolactone) at attapulgite nanocomposites with well-defined structures.For this,first, the chlorine terminated attapulgite was prepared by the self-assembly of 3-chloropropyltrimethoxysiIane from the surfaces of attapulgite.And then,the terminal chlorines of modified attapulgite were substituted with azido groups.As the second step,linear pr... | Chen, Jiu Cun Wang, Yun Pu Wang, Hao Dong Wei, Shuo Yun Li, Hong Jun Yan, Xiao Dong | 2010 | Chinese Chemical Letters2010，21，4： | 1 |
| 6 | 采后Attapulgite处理对苹果梨青霉病的抑制效果显示文摘在离体条件下,105、0 g/L和100 g/L的Attapulgite均可抑制Penicillium expansum菌丝的生长,其中以100 g/L的抑菌效果最好,对菌丝生长的抑制率可达55.9%.采用50 g/L和100 g/L的Attapulgite以Tween60做表面活性剂对果实进行15 min真空渗透处理,可显著降低损伤接种P.expansum的病斑面积,其中100 g/L的处理效果优于50 g/L处理.生化分析结果表明,经Attapulgite处理的果实体内的苯丙氨酸解氨酶(PAL)、几丁质酶(CHT)和-β1,3-葡聚糖酶(GLU)活性明显升高,总酚含量也有所增加.由此表明,Attapulgite处理对苹果梨果实青霉病的抑制与其的直接抑菌作用和诱导体内的抗性有关. | 李文浩 毕阳 葛永红 齐志国 张海霞 张霞玲 | 2008 | 甘肃农业大学学报2008，43，6： | 1 |
| 7 | Alginate Composite Hydrogel Bead with Multilayer Flake Structure for Dye Adsorptions显示文摘With the rapid development of textile industry,a large amount of dye-contaminated effluents was produced and caused serious environmental problem.To remove the dye from effluents,adsorption materials have been applied because of their relatively cheap,high efficiency,and easy handling.In this study,a novel composite hydrogel bead with unique multilayer flake structure was fabricated by alginate,acrylamide and attapulgite for dye adsorption.Acrylamide was grafted polymerization onto alginate to obtain alginate-g-poly(acrylamide).Then alginate-g-poly(acrylamide)was cross-linked by Ca2+ions in present of attapulgite to form composite hydrogel bead.Scanning electron microscopy(SEM)results show that the freeze dried composite hydrogel bead has multilayer flake structure incorporating attapulgite.Fourier transform infrared spectroscopy(FTIR)and Thermo-gravimetric analysis(TGA)results indicate that acrylamide has been successfully grafted polymerization on sodium alginate.Grafting polymerization of acrylamide onto sodium alginate obviously enhances the swelling of hydrogel bead.Incorporating of attapulgite into hydrogel bead effectively enhances the adsorption capacity to methylene blue and the maximum adsorption capacity is 155.7 mg g-1.Multilayer flake structure increases the adsorption area for methylene blue,but hinders the diffusion of methylene blue into the inner of composite hydrogel bead.High pH solution is beneficial to the adsorption.Pseudo-second order model and Fraundlinch model best describe the adsorption kinetic and isotherm,respectively.These results indicate that composite hydrogel bead is a promising adsorption material for dye-contaminated water treatment. | Xiaoyu Chen Jie Zhu | 2019 | Journal of Renewable Materials2019，7，10： | 1 |
| 8 | Effect of Attapulgite Added in Plating Bath on the Properties of Ni/TiC Nano-composite Coatings显示文摘Pure copper plates were coated by Ni-TiC dipulse current plating method. The effects of adding different concentration(ranging from 0.5 g/L to 3.0 g/L) of attapulgite nano particles to the plating bath on the surface morphology, wear resistance, and oxidation resistance of Ni/TiC/Attapulgite nano-composite coatings were investigated. The experimental results show that the composite coating is flat and compact with adding 3.0 g/L in the bath, and the coating preferred orientation is changed from the planes(111) to(200). The coefficient of the composite coatings decreases from 0.68 to 0.18 with increasing content of attapulgite in the bath, a mixed mode of adhesive-abrasive wear occurs for all coatings, and the wear mechanism shows a transition from adhesive-abrasive to predominantly abrasive wear mechanism when the concentration of attapulgite is beyond 1.5 g/L in electrolyte. The oxidation resistance of composite coatings is the best prepared when adding attapulgite particles at 0.5 g/L in the bath, the oxide mainly consists of a NiO phase by X-ray analysis. | 王红星 MAO Xiangyang | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，2： | 1 |
| 9 | Efficient removal of algae and turbidity from water by a composite coagulant composed of a cationic starch and attapulgite显示文摘Algae and suspended colloidal particles produced high turbidity in water,weakened water purification,and threatened the safety of the water supply.In this study,a series of composite coagulants(atp-st-CTA)composed of a cationic starch(st-CTA)and attapulgite(ATP)with different fed mass ratios were fabricated by a simple method to coagulate kaolin suspension with initial turbidity of 80.0 NTU and Chlorella suspension with 0.25 mg/L of chlorophyll a(chla),respectively.Fourier transform infrared spectroscopy and scanning electron microscopy investigated the structural characteristics of atp-st-CTA.The maximum turbidity and chla removal rates of atp-st-CTA were 92.2%and 100.0%,respectively,at natural pH conditions.The effects of the fed mass ratio of st-CTA to ATP in the composites,dose,pH,and coexisting humic acid on the coagulation performance of atp-st-CTA were comprehensively investigated.Based on the apparent coagulation behaviors,the zeta potentials of the supernatants after coagulation,and the flocs properties,the coagulation mechanisms of atp-st-CTA were discussed in detail.The complete charge neutralization due to st-CTA and the enhanced sedimentation by ATP synergistically removed turbidity and algae from the water efficiently.In short,atp-st-CTA as a talented material has a notable prospect in applications of water treatment owing to its advantages of environmental friendliness,low cost,and high efficiency. | JIN JiaSheng XIA Wei HU Pan YANG Hu | 2022 | Science China(Technological Sciences)2022，65，12： | 1 |
| 10 | Synthesis and Characterization of Mesoporous Carbons Using Attapulgite Template显示文摘The template carbonization method was utilized for the production of mesoporous carbons using attapulgite as a template and sucrose as carbon precursor. Sucrose was polymerized and carbonized in the tubes of natural attapulgite using a sulfuric acid catalyst. The structure of the template and carbons were investigated by powder X-ray diffraction, transmission electron microscopy, and Nitrogen adsorption analysis techniques. At the micrometer level, the carbon material templated with the natural attapulgite had the similar morphology. Nitrogen adsorption analysis showed that the obtained porous carbons possess a wide pore size distribution and a large pore volume, especially in the range of mesopores. | CAO Xi CHUAN Xiu-yun | 2013 | 矿物学报2013，33，S1： | 0 |
| 11 | Construction of upconversion fluoride/attapulgite nanocomposite for visible-light-driven photocatalytic nitrogen fixation显示文摘Developing photocatalysts with wide spectrum absorption and strong nitrogen activation is critical for nitrogen fixation under mild conditions.Herein,one-dimensional natural clay attapulgite(ATP)supported YFg:Sm^3+were successfully synthesized via microwave hydrothermal method,and the composites were employed as the catalyst for photocatalytic nitrogen fixation under visible-light irradiation.Results indicated that the production of ammonia reached as high as 41.2 mg·L^-1 within 3 h when the molar ratio of Sm^3+and the mass fraction of YF3:Sm^3+were optimized.The enhanced fixation performance is mainly due to that the modified ATP fibber with abundant active sites and the doped fluoride with defective vacancy facilitate the adsorption and activation of N2.Furthermore,the upconversion property of YF3:Sm^3+increases the harvesting of visible-light energy,meanwhile the Z-scheme heterostructure built between YF:Sm^3+and modified ATP inhibits the recombination of charge carriers and retains high redox potentials for N2 reduction. | Xuhua YE Xiangyu YAN Xini CHU Shixiang ZUO Wenjie LIU Xiazhang LI Chao YAO | 2020 | Frontiers of Materials Science2020，14，4： | 0 |
| 12 | The role and potential of attapulgite in catalytic pyrolysis of refinery waste activated sludge显示文摘Pyrolysis is a promising technology for the treatment of refinery waste activated sludge(rWAS).In this study,attapulgite as a natural clay was used to enhance the pyrolysis of rWAS.The yields,characteristics of pyrolytic products,pyrolytic kinetics and mechanisms were investigated.The attapulgite improved the conversion of rWAS into non-condensable gases and pyrolytic liquids.The bio-oil quality improved and the biochar yield reduced.The average activation energy of Stage Ⅰ(230-400℃)and Stage Ⅱ(400-500℃)decreased by 36.5%and 49.7%,respectively,compared to rWAS alone.Al_(2)O_(3)and Fe_(2)O_(3)in attapulgite enhanced the dealkylation reaction and cracking of C-C bonds.The content of the gasoline( | Qinghong Wang Kanghong Hao Chelsea Benally Yue Kou Zhexuan An Mohamed Gamal El-Din Chunmao Chen | 2022 | Petroleum Science2022，19，1： | 0 |
| 13 | Synthesis of HTEMPO Grafted the Surface of Attapulgite by γ-Glycidoxypropyltrimethoxysilane显示文摘1 Results Living free radical polymerization has undergone tremendous advancement in the past few years, particularly in the area of nitroxide mediated free radical polymerization. In 1980s, the use of nitroxyl free radicals such as 2,2,6,6-tetramethylpiperidinyl-1-oxyl(TEMPO) to moderate free radical polymerizations was first reported by Rizzardo,et al[1], more and more people began to interested in the polymerization methods which controlled by nitroxide stable free radicals. Recently, some people int... | Y.L.Wei Y.P.Wang B.Wang L.Yuan | 2007 | 复旦学报(自然科学版)2007，46，5： | 0 |
| 14 | Achieving anti-corrosion and anti-biofouling dual-function self-healing coating by natural carrier attapulgite loading with 2-Undecylimidazoline显示文摘In the marine environment,the protective coatings face serious corrosion and biofouling problem,lim-itations,and challenges that made self-healing coatings unable to perform both anti-corrosion and anti-biofouling dual-function at the same time.Here we constructed the corrosion resistance and anti-biofouling self-healing coating by integrating nano-containers into the coating matrix,the 2-Undecylimidazoline(ULM)acted as a corrosion inhibitor and anti-biofouling dual-functional agent which was loaded on the natural container attapulgite(ATP).To obtain high healing efficiency,a fluidity-driven self-healing silicone oil coating was thickened by fibrous ATP to enhance its stability,which played a key role in the self-healing and long-term corrosion resistance.The self-healing time of ULM@ATP rein-forced oil coating was 4 s at least in the air and up to 30 s in the 1 M HCl solution.Meanwhile,the ULM@ATP can significantly enhance the corrosion resistance of the self-healing coating,with the best effect achieved when the content of ULM@ATP was 5 wt.%.The impedance modulus of ULM@ATP-2 still reached 1.62×10^(8)Ωcm^(2) after 480 immersion in 3.5 wt.%NaCl solution,which is 3 orders of magnitude high than pure Oil coating(2.17×10^(5)Ωcm^(2)).The restructure of the ATP network and the release of ULM could largely inhibit the corrosion of metal.The continuous open circuit potential of the compos-ite coating performed the potentially infinite self-healing capacity.The self-healing performances of the composite coating in strong acid and base solutions exhibited high environmental suitability.This anti-corrosion and anti-biofouling(the surface coverage of adhered chlorella decreased 96.88%)dual-function strategy of self-healing coatings could be also realized by many other porous nano-materials or function modifications.The self-healing performances of the composite coating in strong acid and base solutions exhibited high environmental suitability.This anti-corrosion and anti-biofouling dual-function strategy of self-healing coatings could be also realized by many other porous nano-materials or function modifica-tions.The rapid response self-healing coating possessed anti-biofouling and active self-healing functions and showed wide application under more service environments. | Yinghao Wu Jinming Wei Xiaolu Shi Wenjie Zhao | 2023 | Journal of Materials Science & Technology2023，，17： | 0 |
| 15 | Natural attapulgite supported nano-Ni catalysts for the efficient reductive amination of biomass-derived aldehydes and ketones显示文摘The efficient synthesis of useful primary amines via reductive amination of biomass-based aldehydes and ketones over earth-abundant base metal catalysts is an attractive biomass value-adding technology yet facing lots of challenges.Herein,natural attapulgite(ATP)was applied as support for the fabrication of active Ni catalysts with different Ni loadings(5–30 wt%)by the deposition-precipitation method.The Ni/ATP-550 catalyst with 10–15 wt%Ni loadings was found to present the highest catalytic performance for the synthesis of valuable 5-amino-1-pentanol(5-AP)via reductive amination of biofurfural-derived 2-hydroxytetrahydropyran among a variety of commonly used oxide supports loaded Ni catalysts,as well as ATP supported nickel catalysts with other loadings,achieving 5-AP yield up to 94%.The intrinsic activity of the Ni/ATP catalysts was found to depend strongly on the Ni^(0) crystallite size and Ni^(0) fraction of the catalysts,which generally increased with increasing Ni^(0) crystallite size and fraction,owing probably to the hydrogenation of imine intermediate is a structure-sensitive reaction.The efficient 10Ni/ATP-550 catalyst also exhibited good activity and stability in the reductive amination of several other biomass-derived aldehydes and ketones to their corresponding primary amines with good to excellent yields(81%–99%).This work provided a clean and efficient natural ATP-supported non-noble metal nickel-based catalytic system for the reductive amination of aldehydes and ketones to synthesize high-value-added primary amines,which could be a promising candidate for the industrial production of amines. | Jia Zhang Jian Yang Xuemei Li Bin Mu Hailong Liu Chungu Xia Aiqin Wang Zhiwei Huang | 2024 | Green Synthesis and Catalysis2024，5，1： | 0 |
| 16 | Glycerol steam reforming over hydrothermal synthetic Ni-Ca/attapulgite for green hydrogen generation显示文摘Glycerol steam reforming(GSR)is one of the promising technologies that can realize renewable hydrogen production and efficient utilization of crude glycerol.To illuminate the functions of Ca content(3%,6%,9%,and 12%,by mass)and preparation method for Ni/ATP catalyst structure and its catalytic behaviors,the Ni-xCa/ATP(x=3%,6%,9%,and 12%,by mass)catalysts are prepared by co-impregnation(ci)and hydrothermal synthesis(hs)method and then tested in GSR.Characterization results of XRD,N_(2) adsorption–desorption,H_(2)-TPR,HRTEM,XPS,and NH_(3)/CO_(2)-TPD demonstrate that the combined effect between appropriate Ca additive(6%,by mass)and hs enhance catalyst reducibility,uniform distribution of Ca additive and nickel species over ATP,and adsorption for CO_(2).This attributes to hs method protects the ATP framework through suppressing the interaction of Ca with ATP and promotes the formation of NiCaOx interface sites.Therefore,Ni-6Ca/ATP-hs exhibits the highest conversion(86.77%)of glycerol to gas product and H_(2) yield(76.17%)and selectivity(58.56%)during GSR.Furthermore,XRD,HRTEM,TGDTG and Raman analyses confirm that Ni-6Ca/ATP-hs also reveals outstanding anti-sintering and coke resistance.In addition,the structural evolution process of Ni/ATP catalyst with Ca introduction and hs method is presented.Considering the high performance,simple preparation process and low cost,the as-prepared catalyst providing new opportunities for utilization of glycerol derived from biodiesel industry. | Yishuang Wang Na Li Mingqiang Chen Defang Liang Chang Li Quan Liu Zhonglian Yang Jun Wang | 2022 | Chinese Journal of Chemical Engineering2022，35，8： | 0 |
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