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二氧化碳吸收 1

人造细菌鞭毛（ABFs） 1

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可游动微纳米机器人 1

生物医学应用 1

磁控螺旋形微纳米机器人 1

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Sustainable functionalization and modification of materials via multicomponent reactions in water

《化学科学与工程前沿（英文）》 2022年 第16卷 第9期   页码 1318-1344 doi: 10.1007/s11705-022-2150-6

摘要： In materials chemistry, green chemistry has established firm ground providing essential design criteria to develop advanced tools for efficient functionalization and modification of materials. Particularly, the combination of multicomponent reactions in water and aqueous media with materials chemistry unlocks a new sustainable way for constructing multi-functionalized structures with unique features, playing significant roles in the plethora of applications. Multicomponent reactions have received significant consideration from the community of material chemistry because of their great efficiency, simple operations, intrinsic molecular diversity, and an atom and a pot economy. Also, by rational design of multicomponent reactions in water and aqueous media, the performance of some multicomponent reactions could be enhanced by the contributing “natural” form of water-soluble materials, the exclusive solvating features of water, and simple separating and recovering materials. To date, there is no exclusive review to report the sustainable functionalization and modification of materials in water. This critical review highlights the utility of various kinds of multicomponent reactions in water and aqueous media as green methods for functionalization and modification of siliceous, magnetic, and carbonaceous materials, oligosaccharides, polysaccharides, peptides, proteins, and synthetic polymers. The detailed discussion of synthetic procedures, properties, and related applicability of each functionalized/modified material is fully deliberated in this review.

关键词： materials     multicomponent reactions     modification     functionalization     water    

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Surface modification of broom sorghum-based activated carbon via functionalization with triethylenetetramine

Elaheh Mehrvarz, Ali A. Ghoreyshi, Mohsen Jahanshahi

《化学科学与工程前沿（英文）》 2017年 第11卷 第2期   页码 252-265 doi: 10.1007/s11705-017-1630-6

摘要： A new type of activated carbon (AC) was synthesized using broom sorghum stalk as a low cost carbon source through chemical activation with H PO and KOH. The AC obtained by KOH had the largest BET surface area of 1619 m ·g and the highest micropore volume of 0.671 cm ·g . CO adsorption was enhanced by functionalizing the AC with two different amines: triethylenetetramine (TETA) and urea. The structure of the prepared ACs was characterized by Brunauer-Emmett-Teller method, scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and acid-base Boehm titration analyses. The adsorption behavior of CO onto raw and amine-functionalized ACs was investigated in the temperature range of 288–308 K and pressures up to 25 bar. The amount of CO uptake at 298 K and 1 bar achieved by AC-TETA and AC-urea was 3.22 and 2.33 mmol·g which shows a 92% and 40% improvement compared to pristine AC (1.66 mmol·g ), respectively. Among different model isotherms used to describe the adsorption equilibria, Sips isotherm presented a perfect fit in all cases. Gas adsorption kinetic study revealed a fast kinetics of CO adsorption onto the ACs. The evaluation of the isosteric heat of adsorption demonstrated the exothermic nature of the CO adsorption onto unmodified and modified samples.

关键词： activated carbon     broom sorghum     functionalization     CO2 capture    

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Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration

《环境科学与工程前沿（英文）》 2023年 第18卷 第4期 doi: 10.1007/s11783-024-1805-6

摘要：

● Urethane functionalities created on PES membranes via electron beam irradiation.

关键词： Surface functionalization     Electron beam irradiation     Microfiltration     Endocrine disrupting chemicals    

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Erratum to: Synthesis of vinasse-dolomite nanocomposite biochar via a novel developed functionalization

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1387-5

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Synthesis of vinasse-dolomite nanocomposite biochar via a novel developed functionalization method to

Nima Kamali, Abdollah Rashidi Mehrabadi, Maryam Mirabi, Mohammad Ali Zahed

《环境科学与工程前沿（英文）》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1249-6

摘要： Abstract • Nanocomposites were prepared by adding dolomite to vinasse at different ratio. • Textural and morphological features of adsorbents were studied in detail. • CCD based RSM was used for investigation of P ion removal by nanocomposite. • The qm based on Langmuir model for modified vinasse biochar was 178.57 mg/g. • P loaded nanocomposite improved plant growth and could be utilized as P-fertilizer. The effectiveness of phosphate (P) removal from aqueous solutions was investigated by novel low-cost biochars synthesized from vinasse and functionalized with calcined dolomite. The vinasse-derived biochar, synthesized via pyrolysis at different temperatures, showed easy preparation and a large surface area. The novel vinasse biochar nanocomposites were prepared by adding dolomite to the vinasse biochars with different weight percentages (10, 20 and 30%). The characteristics of the prepared materials were identified for further understanding of the inherent adsorption mechanism between P ions and vinasse biochars. Vinasse-dolomite nanocomposite was very effective in the adsorption of P species from aqueous media. The effect of the operational factors on Vinasse-dolomite nanocomposite was explored by applying response surface methodology (RSM). According to RSM results, the optimum condition was achieved to be contact time 90 (min), 250 (mg/L) of P concentration and pH 7. Thermodynamic isotherm and kinetic studies were applied on experimental data to understand the adsorption behavior. The Vinasse-dolomite nanocomposite revealed preferential P species adsorption in the presence of co-existing anions. The P species could be recovered by 1.0 M HCl where the efficiency was not affected up to the fifth cycle. The P-loaded Vinasse-dolomite nanocomposite was successfully tested on a plant; it significantly improved its growth and proved its potency as a P-based fertilizer substitute.

关键词： Biochar     Vinasse     Dolomite     Phosphate     Fertilizer    

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Hollow carbon spheres and their noble metal-free hybrids in catalysis

《化学科学与工程前沿（英文）》 2021年 第15卷 第6期   页码 1380-1407 doi: 10.1007/s11705-021-2097-z

摘要： Hollow carbon spheres have garnered great interest owing to their high surface area, large surface-to-volume ratio and reduced transmission lengths. Herein, we overview hollow carbon sphere-based materials and their noble metal-free hybrids in catalysis. Firstly, we summarize the key fabrication techniques for various kinds of hollow carbon spheres, with a particular emphasis on controlling pore structure and surface morphology, and then heterogeneous doping as well as their metal-free/containing hybrids are presented; next, possible applications for non-noble metal/hollow carbon sphere hybrids in the area of energy-related catalysis, including oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, water splitting, rechargeable Zn-air batteries and pollutant degradation are discussed; finally, we introduce the various challenges and opportunities offered by hollow carbon spheres from the perspective of synthesis and catalysis.

关键词： hollow carbon spheres     functionalization     noble metal-free     catalysis    

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Non-thermal plasma enhances performances of biochar in wastewater treatment and energy storage applications

《化学科学与工程前沿（英文）》 2022年 第16卷 第4期   页码 475-483 doi: 10.1007/s11705-021-2070-x

摘要： Surface functionalization or modification to introduce more oxygen-containing functional groups to biochar is an effective strategy for tuning the physicochemical properties and promoting follow-up applications. In this study, non-thermal plasma was applied for biochar surface carving before being used in contaminant removal and energy storage applications. The results showed that even a low dose of plasma exposure could introduce a high number density of oxygen-functional groups and enhance the hydrophilicity and metal affinity of the pristine biochar. The plasma-treated biochar enabled a faster metal-adsorption rate and a 40% higher maximum adsorption capacity of heavy metal ion Pb2+. Moreover, to add more functionality to biochar surface, biochar with and without plasma pre-treatment was activated by KOH at a temperature of 800 °C. Using the same amount of KOH, the plasma treatment resulted in an activated carbon product with the larger BET surface area and pore volume. The performance of the treated activated carbon as a supercapacitor electrode was also substantially improved by>30%. This study may provide guidelines for enhancing the surface functionality and application performances of biochar using non-thermal-based techniques.

关键词： non-thermal plasma     surface functionalization     biochar modification     wastewater treatment     supercapacitor    

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Functionalized activated carbon for the adsorptive removal of perchlorate from water solutions

Rovshan MAHMUDOV, Chinglung CHEN, Chin-Pao HUANG

《化学科学与工程前沿（英文）》 2015年 第9卷 第2期   页码 194-208 doi: 10.1007/s11705-015-1517-3

摘要： Two types of activated carbon, namely, Filtrasorb 400 and Nuchar SA, were functionalized by quaternary ammonium salts (quats), as to enhance perchlorate adsorption. Results showed that the adsorption of quats on Nuchar SA increased with increase in chain length (hydrophobicity) of quats. Filtrasorb 400, however, had limited uptake of long-chain quats such as dodecyltrimethylammonium and hexadecyltrimethylammoium (HDTMA). Results indicated that perchlorate removal by the functionalized activated carbon was directly related to the chain length of the modifying quats. Perchlorate removal by functionalized activated carbon increased with increase in chain length of the modifying quats and became less pH-dependent. Modified Nuchar SA had higher overall perchlorate removal capacity than the modified Filtrasorb F400, but was more strongly affected by pH than Filtrasorb 400. Activated carbon treated with HDTMA exhibited the best perchlorate removal capacity among all quats studied. Results indicated that tailoring the activated carbon surface with HDTMA rendered the activated carbon surface positively charged, which resulted in substantial increase in perchlorate removal compared to unfunctionalized activated carbons.

关键词： perchlorate     activated carbon     removal     functionalization     quaternary ammonium salts    

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(Super)paramagnetic nanoparticles as platform materials for environmental applications: From synthesis to demonstration

Wenlu Li, John D. Fortner

《环境科学与工程前沿（英文）》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1256-7

摘要： • The fabrication of monodisperse, (super)paramagnetic nanoparticles is summarized. • Monolayer and bilayer surface coating structures are described. • Mono/bilayer coated nanoparticles showed high sorption capacities for U, As, and Cr. Over the past few decades, engineered, (super)paramagnetic nanoparticles have drawn extensive research attention for a broad range of applications based on their tunable size and shape, surface chemistries, and magnetic properties. This review summaries our recent work on the synthesis, surface modification, and environmental application of (super)paramagnetic nanoparticles. By utilizing high-temperature thermo-decomposition methods, first, we have broadly demonstrated the synthesis of highly monodispersed, (super)paramagnetic nanoparticles, via the pyrolysis of metal carboxylate salts in an organic phase. Highly uniform magnetic nanoparticles with various size, composition, and shape can be precisely tuned by controlled reaction parameters, such as the initial precursors, heating rate, final reaction temperature, reaction time, and the additives. These materials can be further rendered water stable via functionalization with surface mono/bi-layer coating structure using a series of tunable ionic/non-ionic surfactants. Finally, we have demonstrated platform potential of these materials for heavy metal ions sensing, sorption, and separation from the aqueous phase.

关键词： Superparamagnetic nanoparticles     Surface functionalization     Environmental sensing     Heavy metal ion sorption    

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Magnetic KIT-6 nano-composite and its amino derivatives as convenient adsorbent for U(VI) sequestration

《化学科学与工程前沿（英文）》 2023年 第17卷 第12期   页码 2037-2049 doi: 10.1007/s11705-023-2358-0

摘要： Although mesoporous silica with magnetically hybridized two-dimensional channel structures has been well studied in recent years, it remains a challenge to fabricate the counterpart with macroporous three-dimensional cubic structures since the highly acidic preparation conditions lead to dissolution of magnetic particles. Herein, we successfully prepared magnetic KIT-6 nano-composite and its amino derivatives by bearing acid-resistant iron oxide. The prepared materials exhibited excellent properties for U(VI) ions removal from aqueous solutions under various conditions. The experimental data show that the U(VI) adsorption features fast adsorption kinetics, high adsorption capacity and ideal selectivity toward U(VI). The adsorption process is of spontaneous and endothermic nature and ionic strength independence, and the adsorbents can be easily regenerated by acid treatment. Compared to pristine KIT-6, the introduction of magnetism does not reduce the efficiency of the material to remove U(VI) while exerting its role as a recovery adsorbent. The findings of this work further demonstrate the potential broad application prospects of magnetic hybrid mesoporous silica in radionuclide chelation.

关键词： magnetic nanoparticle     3D mesoporous silica     amino functionalization     adsorption of U(VI)     acid resistance    

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Where physics meets chemistry: Thin film deposition from reactive plasmas

Andrew Michelmore, Jason D. Whittle, James W. Bradley, Robert D. Short

《化学科学与工程前沿（英文）》 2016年 第10卷 第4期   页码 441-458 doi: 10.1007/s11705-016-1598-7

摘要： Functionalising surfaces using polymeric thin films is an industrially important field. One technique for achieving nanoscale, controlled surface functionalization is plasma deposition. Plasma deposition has advantages over other surface engineering processes, including that it is solvent free, substrate and geometry independent, and the surface properties of the film can be designed by judicious choice of precursor and plasma conditions. Despite the utility of this method, the mechanisms of plasma polymer growth are generally unknown, and are usually described by chemical (i.e., radical) pathways. In this review, we aim to show that plasma physics drives the chemistry of the plasma phase, and surface-plasma interactions. For example, we show that ionic species can react in the plasma to form larger ions, and also arrive at surfaces with energies greater than 1000 kJ?mol (>10 eV) and thus facilitate surface reactions that have not been taken into account previously. Thus, improving thin film deposition processes requires an understanding of both physical and chemical processes in plasma.

关键词： thin films     plasma physics     plasma chemistry     functionalization     polymer    

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Crosslinking acrylamide with EDTA-intercalated layered double hydroxide for enhanced recovery of Cr(VI) and Congo red: Adsorptive and mechanistic study

Jing Li, Haiqin Yu, Xue Zhang, Rixin Zhu, Liangguo Yan

《环境科学与工程前沿（英文）》 2020年 第14卷 第3期 doi: 10.1007/s11783-020-1229-x

摘要： Functional groups of AM and EDTA in composite increased removal of Cr(VI) and CR. Removal process reached equilibrium within 30 min and was minimally affected by pH. Elimination of Cr(VI) was promoted by coexisting CR. Adsorption process of CR was less influenced by the presence of Cr(VI). Mechanisms were electrostatic attraction, surface complexation and anion exchange. We prepared ethylenediaminetetraacetic acid (EDTA)-intercalated MgAl-layered double hydroxide (LDH-EDTA), then grafted acrylamide (AM) to the LDH-EDTA by a cross-linking method to yield a LDH-EDTA-AM composite; we then evaluated its adsorptive ability for Congo red (CR) and hexavalent chromium (Cr(VI)) in single and binary adsorption systems. The adsorption process on LDH-EDTA-AM for CR and Cr(VI) achieved equilibrium quickly, and the removal efficiencies were minimally affected by initial pH. The maximum uptake quantities of CR and Cr(VI) on LDH-EDTA-AM were 632.9 and 48.47 mg/g, respectively. In mixed systems, chromate removal was stimulated by the presence of CR, while the adsorption efficiency of CR was almost not influenced by coexisting Cr(VI). The mechanisms involved electrostatic attraction, surface complexation, and anion exchange for the adsorption of both hazardous pollutants. In the Cr(VI) adsorption process, reduction also took place. The removal efficiencies in real contaminated water were all higher than those in the laboratory solutions.

关键词： Chromate     Dye adsorption     Simultaneous removal     Cross-linking method     Amino functionalization    

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磁控螺旋形微纳米机器人在生物医学方面的应用 Review

邱发敏, Bradley J. Nelson

《工程（英文）》 2015年 第1卷 第1期   页码 21-26 doi: 10.15302/J-ENG-2015005

摘要：

磁控螺旋形微纳米机器人可在低强度旋转磁场（<10 mT）的驱动下，实现亚微米精度的三维（3D）游动。由于低强度磁场对细胞和组织无害，磁控螺旋形微纳米机器人在生物医学方面有很大的应用前景，如微创手术、细胞操作和分析以及靶向治疗。本文系统介绍了磁控螺旋形微纳米机器人的制造方法、运动控制和生物医学应用。

关键词： 磁控螺旋形微纳米机器人     可游动微纳米机器人     人造细菌鞭毛（ABFs）     功能化     生物医学应用    

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用于提高叔胺的二氧化碳吸收能力的纳米多孔碳材料促进剂的制备 Review

Masood S. Alivand, Omid Mazaheri, Yue Wu, Geoffrey W. Stevens, Colin A. Scholes, Kathryn A. Mumford

《工程（英文）》 2020年 第6卷 第12期   页码 1381-1394 doi: 10.1016/j.eng.2020.05.004

摘要：

叔胺水溶液具有吸收力强、反应热低、腐蚀性低等特点，作为一种二氧化碳（CO2）吸收剂，其应用前景良好。然而，由于叔胺吸收CO2的速率过慢，不适用于大规模实际应用。本文对一些不同特性的纳米多孔碳材料促进剂（NCP）进行了合成和表征，并将其作为N,N-二乙基乙醇胺（DEEA）水溶液吸收CO2的加速剂。通过采用超声技术将NCP注入到3 mol·L–1的DEEA水溶液中，制备得 到了DEEA-NCP纳米流体。结果表明，在与乙二胺（EDA）、聚乙烯亚胺（PEI）发生官能化反应的微孔（GC）碳材料和介孔（GS）碳材料结构中，GC-EDA促进剂的性能最佳。对比DEEAGC-EDA纳米流体与典型的DEEA水溶液得出，GC-EDA促进剂在40℃时的CO2吸收率为36.8~50.7 kPa·min–1，提高了38.6%，平衡CO2吸收率为每摩尔DEEA中CO2的含量为0.69~0.78 mol（15 kPa; 40 ℃），提高了13.2%。此外，本文测定了DEEA-GC-EDA纳米流体的可再利用性，同时还提出了循环利用的方法。本文得出结论：在叔胺中加入NCP-GC-EDA促进剂可以提高CO2吸收率，同时还有利于实现叔胺的大规模使用，其前景广阔。 

关键词： 二氧化碳吸收     纳米流体     N     N-二乙基乙醇胺     纳米多孔碳促进剂     聚胺功能化    

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标题 作者 时间 类型 操作

Sustainable functionalization and modification of materials via multicomponent reactions in water

期刊论文

Surface modification of broom sorghum-based activated carbon via functionalization with triethylenetetramine

Elaheh Mehrvarz, Ali A. Ghoreyshi, Mohsen Jahanshahi

期刊论文

Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration

期刊论文

Erratum to: Synthesis of vinasse-dolomite nanocomposite biochar via a novel developed functionalization

期刊论文

Synthesis of vinasse-dolomite nanocomposite biochar via a novel developed functionalization method to

Nima Kamali, Abdollah Rashidi Mehrabadi, Maryam Mirabi, Mohammad Ali Zahed

期刊论文

Hollow carbon spheres and their noble metal-free hybrids in catalysis

期刊论文

Non-thermal plasma enhances performances of biochar in wastewater treatment and energy storage applications

期刊论文

Functionalized activated carbon for the adsorptive removal of perchlorate from water solutions

Rovshan MAHMUDOV, Chinglung CHEN, Chin-Pao HUANG

期刊论文

(Super)paramagnetic nanoparticles as platform materials for environmental applications: From synthesis to demonstration

Wenlu Li, John D. Fortner

期刊论文

Magnetic KIT-6 nano-composite and its amino derivatives as convenient adsorbent for U(VI) sequestration

期刊论文

Where physics meets chemistry: Thin film deposition from reactive plasmas

Andrew Michelmore, Jason D. Whittle, James W. Bradley, Robert D. Short

期刊论文

Crosslinking acrylamide with EDTA-intercalated layered double hydroxide for enhanced recovery of Cr(VI) and Congo red: Adsorptive and mechanistic study

Jing Li, Haiqin Yu, Xue Zhang, Rixin Zhu, Liangguo Yan

期刊论文

磁控螺旋形微纳米机器人在生物医学方面的应用

邱发敏, Bradley J. Nelson

期刊论文

用于提高叔胺的二氧化碳吸收能力的纳米多孔碳材料促进剂的制备

Masood S. Alivand, Omid Mazaheri, Yue Wu, Geoffrey W. Stevens, Colin A. Scholes, Kathryn A. Mumford

期刊论文