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Journal of industrial and engineering chemistry
The Korean Society of Industrial and Engineering Chemistry
Journal of industrial and engineering chemistry

The Korean Society of Industrial and Engineering Chemistry

1226-086X

Journal of industrial and engineering chemistry/Journal Journal of industrial and engineering chemistrySCIEICCRAHCI
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    Design strategies of supported metal-based catalysts for efficient oxidative desulfurization of fuel

    Chen L.Yuan Z.-Y.
    14页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryThe consumption of fuel oil containing sulfur compounds produces SOx, which inevitably leads to severe environmental pollution and even threatens human health. Oxidative desulfurization (ODS) has been identified as a promising pathway to produce clean fuel by virtue of its high efficiency and mild reaction conditions. In recent years, supported metal-based catalysts have attracted scientific research interest due to the high activity and remarkable recyclability for ultra-deep ODS reactions. In this review, the latest research progress on the supported metal-based ODS catalysts is summarized. The reaction mechanism of the supported metal-based ODS catalysts is briefly discussed based on the different metal active components. Notably, we focus on summarizing the design strategies of highly efficient supported metal-based ODS catalysts, with special emphasis on the creation of the concentrated microenvironment of reactants around active sites, construction of highly effective catalytically active sites and improvement of recyclability. These improved strategies are also applicable to the development of the supported metal-based catalysts for other green catalytic reactions. In addition, the current issues and future development trends of the supported metal-based ODS catalysts are pointed out.
      原文链接:
    • NSTL
    • Elsevier

    Significantly enhanced antifouling and separation capabilities of PVDF membrane by synergy of semi-interpenetrating polymer and TiO2 gel nanoparticles

    Chen X.Wang S.Dong H.Zhai X....
    13页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryPVDF membrane has strong hydrophobicity and low anti-pollution performance, greatly limiting its practical application. These drawbacks have been successfully overcome by designing and then preparing a membrane with a semi-interpenetrating polymer (semi-IPN) of PVDF/poly(acrylic acid) (PAA) as the membrane matrix, TiO2 nanoparticles as functional components and F127 as pore-forming agent. The semi-IPN was prepared by copolymerizing acrylic acid with N,N methyl acrylamide in the presence of PVDF, and the TiO2 gel nanoparticles were in situ formed in the membrane-forming process. The properties of the composite membrane were significantly affected by the semi-IPN, F127 and TiO2. By adjusting the membrane structure with the semi-IPN, F127 and TiO2 nanoparticles, we prepared a composite membrane with a water contact angle of 40°, a BSA rejection ratio of 87.5% and a water flux of 802.5 L/m2/h/bar. After a simple UV irradiation, the water flux of this composite membrane rose to 1030 L/m2/h/bar, without any rejection decline. The membrane contaminated by humic acid could recover the water flux up to above 95.3% of its original value by a single UV irradiation, showing a very good antifouling performance. In addition, the composite membrane also exhibited a very strong pollution resistance and separation performance for bovine serum albumin and oil-water emulsion. All in all, based on the synergy of the semi-IPN and the evenly dispersed TiO2 nanoparticles, the prepared composite membrane exhibited excellent comprehensive properties and demonstrated a great potential for various separation applications.
      原文链接:
    • NSTL
    • Elsevier

    Novel bi-functional RGO-HPSE-Zn@epoxy nanocomposite with superior corrosion protection potency

    Mostafatabar A.H.Bahlakeh G.Ramezanzadeh B.
    19页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryRecently, the employment of organic coatings (i.e. Epoxy resin (EP)), become common to provide immunity for metals in corrosive environments. The lack of self-healing/active protection in EP, as well as short-term barrier performance, inspired authors to provide superior barrier/self-healing protection potential for EP by designing a highly durable control-release system based on a novel composite metal–organic polymeric matrix. Therefore, in this work, first, the graphene oxide nanosheets were synthesized (GO), then reduced and also functionalized by the extracted bio-compatible organic-based molecules of Heracleum persicum seed (RGO-HPSE), and finally modified via zinc metal cations doping (RGO-HPSE-Zn). The successful synthesis of nano-pigments was characterized, applying a variety of analyses. Further, the electrochemical approaches were employed for solution-phase investigation and demonstrated 66% and 86% anti-corrosion capability for RGO-HPSE and RGO-HPSE-Zn, respectively. Afterward, 0.2 wt.% of nano-pigments were incorporated into the EP coating network to provide active self-healing performance and enhance the barrier behavior of the EP coating. Applying EIS technique, the coatings were evaluated in two forms of scratched and intact. The 83,973 ohm.cm2 and 122,412 ohm.cm2 of impedance values were achieved from the scratched RGO-HPSE/EP and RGO-HPSE-Zn/EP coatings, respectively, while the maximum impedance values of scratched neat EP was recorded at 35,673 ohm.cm2. The superior barrier performance of RGO-HPSE-Zn/EP intact coating was achieved through negligible descend of |Z|10mHz value during 10 weeks of immersion (1010.5 ohm.cm2 → 1010.2 ohm.cm2).
      原文链接:
    • NSTL
    • Elsevier

    Analysis of efficiency variations in ν-DABNA based thermally activated delayed fluorescence OLED devices

    Yang K.J.Lee H.Hwang S.J.Kim S.J....
    7页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryRecently, diboron based blue thermally activated delayed fluorescence (TADF) material, N7,N7,N13,N13,5,9,11,15-octaphenyl-5,9,11,15-tetrahydro-5,9,11,15-tetraaza-19b, 20b-diboradinaphtho[3,2,1-de:1′,2′,3′-jk] pentacene-7,13-diamine (ν-DABNA) has drawn attention from the researchers due to its good device performances as well as narrow full-width at half maximum (FWHM) in OLED devices. In this work, we report a detailed analysis to understand the exact reason behind the efficiency variations in ν-DABNA based TADF devices using different types of host materials. Interestingly, we found that triplet exciton density of ν-DABNA molecule is mainly located at the central region, so the triplet exciton energy transfer from the host material is hindered due to the presence of peripheral diphenylamine extensions. Hence, our analysis suggests that utilizing wide band gap host materials in ν-DABNA based TADF devices exhibit excellent device efficiencies with the support of trap assisted emission mechanism. This study brings an in-depth understanding of efficiency variations in the ν-DABNA based OLED devices.
      原文链接:
    • NSTL
    • Elsevier

    A study on the mechanism of pore formation through VIPS-NIPS technique for membrane fabrication

    Dehban A.Kargari A.Hosseini Saeedavi F.
    18页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryIn this research, the pore formation mechanism of the membranes through the vapor-induced phase separation (VIPS) technique is studied. Polyvinylidene Fluoride (PVDF) microfiltration membranes are successfully fabricated by a combination of the vapor-induce phase separation (VIPS) and non-solvent-induced phase separation (NIPS), known as VIPS-NIPS method, and the influence of exposure time is investigated on the characteristics of the fabricated membranes. The membranes are characterized by scanning electron microscope (SEM) images, porosity, maximum pore radius, pore size distribution (PSD), liquid entry pressure of water (LEPw), mechanical strength, and flux of ethanol through the membrane. The results demonstrated the pore radius of the membranes increased, then decreased, and then increased again by increasing the exposure time. The narrowest pore size distribution was obtained for the membranes when the polymeric film was exposed to the humid environment for five minutes. The pore size distribution results confirmed the four-step mechanism for pore formation in the VIPS process. The nucleation points are formed on the membrane surface in the VIPS step. At low exposure times, the number of nuclei is low and they grow in the coagulation bath and form large pores. By increasing the exposure time, the number of nuclei is increased and reaches a maximum value. At this point, the growth of nuclei in the coagulation bath is minimum and results in a membrane with a smaller pore radius. Afterward, by increasing the VIPS time, the nuclei become larger and join each other to make larger pores, therefore, a wider pore size distribution with a larger average pore radius of the membrane would be expected.
      原文链接:
    • NSTL
    • Elsevier

    Redox/pH-dual responsive functional hollow silica nanoparticles for hyaluronic acid-guided drug delivery

    Shin D.Lee S.Choi I.Jang H.S....
    9页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryStimuli-responsive nanocarriers have been studied for controlling release kinetics while minimizing the undesired leakage of loaded molecules. Hollow mesoporous silica nanoparticles (HMSNs) have been used as carriers because of their biocompatibility, porosity, high surface area, and ease of chemical modification. Moreover, introducing targeting moieties onto the HMSNs enables targeted delivery to designated sites. Here, we designed dual-responsive HMSNs capped with various molecular weights of hyaluronic acid (HA) to control the drug loading quantity and enhance the targeting efficiency. The dual-responsive HMSNs were synthesized via sequential surface grafting processes, which include thiol groups, amine groups, and capping agents (denoted as HMSN-SH, HMSN-SS-NH2, and HMSN-SS-HA, respectively). The modified HMSNs were further functionalized with HA to increase the cancer-targeting efficiency for CD44-rich cancer cells. This functionalized HMSN showed 1.2–2.3 times increased drug release efficiency under redox/pH-dual stimuli compared to each stimulus. As a result, the HMSNs were internalized by cancer cells rather than normal cells; consequently, more drugs were delivered to cancer cells. We suggest that the proposed HMSN-SS-HA would be a suitable carrier for enhancing drug delivery efficiency with targeting/stimuli-responsive functionalities.
      原文链接:
    • NSTL
    • Elsevier

    Advanced model for conductivity estimation of graphene-based samples considering interphase effect, tunneling mechanism, and filler wettability

    Zare Y.Rhee K.Y.
    7页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryIn this study, we propose a model for the estimation of conductivity of graphene-based samples considering the roles of the interphase depth, filler portion in the nets, network efficiency, tunneling processes (as a quantum effects of graphene), and superficial energies of polymer and nanoparticles. This model considers the effects of the amount, dimensions, conduction, and percolation onset of graphene nanosheets on conductivity. The proposed model is evaluated using experimental data and parametric examinations. The outputs of the proposed model display a desirable agreement with experimental results. It is demonstrated that the interphase deepness, network efficiency, polymer surface energy, and graphene aspect ratio directly control the conductivity, and a superior conductivity is acquired by the slimmer tunnels, lower percolation onset, and lower filler surface energy.
      原文链接:
    • NSTL
    • Elsevier

    Using artificial neural network for design and development of PVA/chitosan/starch/heparinized nZnO hydrogels for enhanced wound healing

    Amoupour M.Joorabloo A.Khorasani M.T.Adeli H....
    13页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryA study of many individual parameters is required to provide a robust investigation of a system in biomedical applications. A comprehensive understanding of these parameters is achievable by an appropriate experimental model as a valid description to predict the outputs (responses). A combination of response surface methodology and artificial neural network has been employed to design hydrogel dressings including polyvinyl alcohol, chitosan, and starch. The optimal ratio of components of hydrogels as input data based on the water vapor transmission rate, gel content, swelling ratio, and porosity properties as output parameters was determined using the quick propagation algorithm. Zinc-oxide nanoparticles were coupled with heparin and applied in the optimal formulation to investigate its effect on physical and mechanical properties, cytotoxicity, and antibacterial activities as well as in vivo wound healing. Mechanical strength improved in the presence of zinc-oxide nanoparticles. Heparin release reached with the saturation state in a longer period after conjugation onto zinc-oxide nanoparticles. Minimum inhibitory concentration decreased significantly by conjugation of heparin to the nanoparticles and current systems could protect wounds against infections. In vivo wound healing and immunohistochemistry assay indicated accelerated wound closure, re-epithelialization, and skin regeneration for hydrogel dressings containing heparin functionalized zinc-oxide nanoparticles.
      原文链接:
    • NSTL
    • Elsevier

    Investigation of antibiotic surface activity by tracking hydrodynamic of a rising bubble

    Hamdollahi E.Lotfi M.Hemmati A.Shafiee M....
    8页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryImproving the performance of many industries as well as traditional and modern processes necessitates knowledge of interfacial phenomena. Nowadays, due to the widespread use of antibiotics, it is crucial to improve their function, optimize their synthesis process and explore their removal method from aquatic environment. For the first time, the adsorption kinetic of Amoxicillin and Ampicillin is measured by pendant drop and their surface activity is investigated by rising bubble method. From adsorption kinetics, it is obvious that Ampicillin is surface active at air–water interface. While Ampicillin shows a drastic surface activity even at 500 ppm, i.e. surface pressure around 2.5 mN/m. From local velocity profiles of single rising air bubble, defiantly the Amoxicillin is not surface active. It is concluded from both results, that presence of Ampicillin and Amoxicillin in water will change the molecular structure in the bulk and at the interface. As expected, the sensitivity of the rising bubble method to the impurity compared to others like pendant drop method is undeniable.
      原文链接:
    • NSTL
    • Elsevier

    Hierarchical polyurethane/RGO/BiOI fiber composite as flexible, self-supporting and recyclable photocatalysts for RhB degradation under visible light

    Lan M.Wang M.Zheng N.Dong X....
    9页
    查看更多>>摘要：? 2021 The Korean Society of Industrial and Engineering ChemistryIncreasing organic pollutants have seriously affected the ecological environment and human health, photocatalytic technology is considered as one of the most effective and environmentally friendly treatment methods. In this work, a novel hierarchical polyurethane (PU)/reduced graphene oxide (RGO)/bismuth oxyiodide (BiOI) composite fiber photocatalyst is constructed via an energy-saving route consisted of ultrasonic-assisted and co-precipitation method by utilizing PU nanofibers as substrate. The RGO are first evenly wrapped in the PU nanofiber surface and BiOI nanosheets are then uniformly grown on the PU/RGO surface to form the hierarchical PU/RGO/BiOI composite fibers with a core–shell structure. The composition, morphology and electrochemical performance of the obtained PU/RGO/BiOI were characterized by XRD, XPS, SEM, BET, I-t and EIS. Benefited from the high specific surface area of the PU nanofiber and the excellent electron transfer ability of the RGO, a remarkable photocatalytic activity was achieved for the PU/RGO/BiOI composite fibers and the degradation rate of RhB is 93.2% within 180 min. Notably, compared to the traditional suspended nanoparticles, the PU/RGO/BiOI fibers exhibit excellent flexibility and self-supporting property, and can be easily separated and recovered from the contaminated water. Thus, the obtained PU/RGO/BiOI composite fibers with high photocatalytic activity and easily separable property are expected to possess great potential in water purification.
      原文链接:
    • NSTL
    • Elsevier