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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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    Photocatalytic abatement of phenol on amorphous TiO2-BiOBr-bentonite heterostructures under visible light irradiation

    Dlamini M.C.Dlamini M.L.Tlhaole B.Maubane-Nkadimeng M.S....
    18页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryA simplistic solvothermal process to fabricate novel amorphous TiO2-BiOBr-Bentonite (A-TiO2-BiOBr-Bt) multidimensional photocatalysts in this work is a practical and economically feasible technique for the fabrication of the reported photocatalysts as it is a one-pot process. The stickiness of the A-TiO2-BiOBr-Bt wet cake and the low drying temperature make A-TiO2-BiOBr-Bt a feasible platform composite for the fabrication of the photoreactive inner coating of water treatment containers for photocatalytic treatment of drinking water. The A-TiO2-BiOBr-Bt photocatalyst with an A-TiO2:BiOBr:Bt mass ratio of 1:1:2 (Ti1Bi1Bt2) displayed the highest BET surface area of 124.8 m2/g, a low bandgap of 2.86 eV, and sufficiently low electron-hole recombination rate. The high number of A-TiO2-BiOBr p-n heterojunctions, and the Ti-O-Si and Bi-O-Si bonds between A-TiO2-BiOBr and Bt in Ti1Bi1Bt2 lowered its electron-hole recombination rate with enhanced visible light-harvesting ability. Within 70 min of visible light irradiation, 150 mg of Ti1Bi1Bt2 gave 100% conversion of 100 mL of 20 ppm phenol with a pseudo-first-order rate constant of 0.0322 min?1 at pH 4.0. Scavenging experiments showed superoxide radicals (O2??) and electrons (e?) being the most dominant reactive oxidation species (ROS) responsible for the phenol photodegradation process while holes (h+) and hydroxyl radicals (?OH) also exerted appreciable participation.
      原文链接:
    • NSTL
    • Elsevier

    Improved dyes separation performance of reduced graphene by incorporation MoS2 nanosheets

    Wei X.Fan X.Deng Y.Li L....
    10页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryThe hydrothermal reduced graphene (rGO) and the layered MoS2 nanosheets prepared by the liquid-phase stripping method were blended, and then the MoS2-rGO composite membranes were prepared on the polyvinylidene fluoride (PVDF) supporting membranes by vacuum filtration method. A variety of characterization methods such as Fourier transform infrared spectrometer (FT-IR), X-ray photoelectron spectroscopy (XPS) and X-ray diffractometer (XRD) were used to verify the successful introduction of MoS2 into rGO layers and the changes of interlayer structure of the MoS2-rGO membranes. Finally, the effect of MoS2 loading on separation performance of the MoS2-rGO composite membrane was investigated. The results show that the separation performance of the membrane with 33.33% of MoS2 loading (M?rG?3) is the most excellent. The permeability of M?rG?3 membrane is 118.21 L m-2h?1 bar?1, which is about 4.4 times that of the pristine rGO membrane. Meanwhile, the rejection of the M?rG?3 membrane for Methyl blue, Crystal violet, Rhodamine B, and Congo red all exceed 80%.
      原文链接:
    • NSTL
    • Elsevier

    Ni, Co, and Mn L3-edge X-ray absorption micro-spectroscopic study on LixNi0.88Co0.08Mn0.04O2 primary particles upon annealing from room temperature to 800 °C

    Shin H.-J.Kim M.Kim N.Jung C....
    7页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryLixNi0.88Co0.08Mn0.04O2 primary particles for lithium ion battery (LIB) applications were annealed in situ from room temperature (RT) to 200, 400, 600, and 800 °C. At each of these temperatures, space-resolved Ni L3-, Co L3-, and Mn L3-edge X-ray absorption spectra of the particles were acquired with 30 nm focused X-rays by using synchrotron-based scanning transmission X-ray microscopy (STXM). This study aimed to investigate the changes induced by the annealing temperature in the local oxidation number, phase, and microscale shape within the particles. At RT, the average oxidation numbers of the Ni, Co, and Mn ions were +3, +3, and +4, respectively. At 200 °C, the average oxidation numbers of the Co and Mn ions were basically the same as those at RT, and those of the Ni ions were between +2 and +3. At 400 °C, the average oxidation numbers of the Ni and Co ions decreased to +2, whereas that of the Mn ions was +4. The average oxidation number of the Ni ions was noticeably lower for smaller particles and on the edges of the particles. At 600 °C, the Ni and Co ions were mostly in the metallic state, the Mn ions were reduced to an oxidation number of +2, and the distribution of Mn ions differed from that of the Ni and Co ions. At 800 °C, the Ni and Co ions were mostly in the metallic state, and the oxidation number of the Mn ions was predominantly +2. At this temperature, strong changes in density distributions of the Mn, Ni, and Co ions occurred.
      原文链接:
    • NSTL
    • Elsevier

    (Zn, Ni)-ferrite nanoparticles for promoted osteogenic differentiation of MC3T3-E1 cells

    Mohan H.Shin T.Karthi N.Muthukumar Sathya P....
    10页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryThe structural composition and functionality of bone tissues has been significantly impacted due to progressive ageing, thereby necessitating effective strategies that are not just about temporary cure but about permanent regeneration of tissues, one such being regenerative medicine. Of the several novelties in the field, the provocation of osteogenesis involving nanoparticles has gained significant attention for their heightened efficiency and cost effectiveness. Magnetic materials in particular have been increasingly paid attention to owing to their edge over stability, non-toxicity and feasibility to spatially track using MRI. The present study involves the synthesis of Zn and Ni doped ferrite ((Zn, Ni)-ferrite) nanoparticles involving chemical co-precipitation method. The materials were evaluated against MC3T3 cells towards ROS induced osteogenic differentiation properties, and the results implied very less toxicity even at concentration surpassing 50 μg/ml in addition to the void of necrosis after treatment with 2.5 and 5 μg/ml of (Zn, Ni)-ferrite. FACS results implied 1% cell staining with propidium iodide after 24 h exposure at 2.5 μg/ml concentrations of (Zn, Ni)-ferrite, thereby substantiating (Zn, Ni)-ferrite as a potential biomaterial in favor of regenerative medicine.
      原文链接:
    • NSTL
    • Elsevier

    Performance of corrosion inhibitor extracted from enzymatic hydrolysate of waste Platanus acerifolia leaves

    Song Z.Cai H.Jiang L.Chu H....
    16页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryIn this study, an ultrasound-assisted enzymatic extraction (UEE) method was proposed to augment the anti-corrosion performance of the green inhibitor extracted from waste Platanus acerifolia leaves. Chemical compositions and anticorrosive properties of UEE extract were characterized via multiple technologies. The adsorption film on the steel surface was characterized via X-ray photoelectron spectroscopy (XPS). The surface information of corroded steel was also analyzed. Results showed that, compared with the ultrasound-assisted alkali extraction (UAE), UEE increased the utilization rate of raw plant materials by 22%～39%. After optimized via response surface methodology, the maximum yield of UEE extract could reach 27.081 mg/g. Electrochemical results showed, compared with 3% UAE extract, the inhibition efficiency of 3% UEE extract after 72 h in 0.5 M NaCl was increased by 22% while the extraction time was saved by 90%. Microscopic observations also proved that UEE extract can effectively mitigate the corrosion degree where the roughness of steel surface decreased by 63.67%. XPS results revealed that a carbonaceous protecting layer was formed on steel surfaces. The inhibition mechanism analysis suggested that flavonoids and their derivatives were apt to adsorb on the steel surface via chelation and surface physical adsorption, which could block the pathway of chloride attack.
      原文链接:
    • NSTL
    • Elsevier

    Synergistic effect of –COOH and Zr(IV) with a short distance in Zr-MOFs for promoting utilization of H2O2 in oxidative desulfurization

    Qi Z.Wang Y.Ye C.Chen J....
    10页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryThe effectiveness of the catalytic oxidative desulfurization (CODS) process crucially depends on the catalytic activity of the catalyst and the utilization of oxidizing agent. Catalyst with multiple active sites is an effective method to improve the CODS effectiveness. The Zr(IV) and –COOH-containing metal–organic framework, UiO-66-(COOH)2, was synthesized and used as an active and recyclable catalyst for CODS. The UiO-66-(COOH)2 shows higher catalytic activity and H2O2 utilization in the CODS process than UiO-66/–COOH, UiO-66, and H2BDC. And the high catalytic performance is derived from the synergistic effect between the Zr(IV) open site and free –COOH functionality within the framework. Experimental analysis and DFT calculations results indicate that the synergistic effect, which changes the reaction path and protects the *O2– radical, is a very effective strategy to promote desulfurization efficiency and the utilization efficiency of H2O2. In addition, it is essential to highlight that the active-site distance also has a significant influence on the effectiveness of CODS. This research may provide a new avenue for improving the CODS performance.
      原文链接:
    • NSTL
    • Elsevier

    3D wet-spinning printing of wearable flexible electronic sensors of polypyrrole@polyvinyl formate

    Qian J.Su F.Guo M.Liu D....
    9页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryPolymer based 3D printings are generally generated from the melt fluids or gels instead of polymer solution. Inspired by continuous wet-spinning of polymer fiber, we explored a new polyvinyl formate (PVFm) printing ink which was directly coagulated by water and mold into designed 3D elastic architectures layer-by-layer. The degree of esterification (DE), chemical structure, morphology, and mechanical properties of PVFm were all investigated. Furthermore, 3D PVFm was coated by polypyrrole (PPy) via in-situ polymerization to fabricate wearable flexible electronic sensors. The relative resistance changes and sensitivity of PPy@PVFm on monitoring physical strain and pressure were characterized. Results show that PPy@PVFm could stably and sensitively recognize human body activities through relative changes in resistance in a wide range of linear relationship. Therefore, a new protocol is readily to realize a strategy of 3D wet-spinning printing and wearable flexible electronic sensors.
      原文链接:
    • NSTL
    • Elsevier

    Phyto-mediated synthesis of Pt and Au/Pt bimetallic nanoparticles using Syzygium aromaticum bud-extract: Study of their catalytic, antibacterial, and antioxidant activities

    Sharma C.Ansari S.Satsangee S.P.Ansari M.S....
    10页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryHerein, we report bio-mediated production of Pt nanoparticles and Au/Pt BMNPs using aqueous extract of Syzygium aromaticum (clove) buds. The presence of phenolic compounds, mainly eugenol was responsible for reduction of metal ions as confirmed through FTIR spectroscopic analysis. The appearance of single SPR band in UV–Visible spectra revealed the alloy nature of BMNPs. Further, microscopic analysis showed the dependence of concentration, pH and temperature on morphology and size of the particles. Other techniques such as XRD, XPS, Zeta potential and cyclic voltammetry were employed to scrutinize the structural and compositional features of the NPs. Au/Pt BMNPs showed good anti-oxidative potential by inhibiting DPPH (IC50-27.2 μg/mL) and ABTS (IC50-14 μg/mL). The antibacterial activity was also investigated, and the zone of inhibition was maximum for Au/Pt BMNPs against Gram negative (Pseudomonas aeruginosa; 18 mm) and Gram positive (Staphylococcus aureus; 16 mm) bacteria. Additionally, Au/Pt BMNPs (96% degradation in 6 min) exhibited better catalytic efficiency for the reduction of PNP compared to monometallic Pt NPs (92% degradation in 10 min). In conclusion, our results reveal better potential efficacy of Au/Pt biosynthesized BMNPs due to the synergistic interactions between monometallic components.
      原文链接:
    • NSTL
    • Elsevier

    Bi@H-TiO2/B-C3N4 heterostructure for enhanced photocatalytic hydrogen generation activity under visible light

    Yang J.Wu Y.Dong Y.Cui H....
    10页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryHerein, a ternary Bi@H-TiO2/B-C3N4 type II heterostructure is successfully designed and prepared via metal Bi as cocatalyst for photocatalytic H2 generation. As expected, under λ > 300 nm light, the highest photocatalytic hydrogen production rate (HPR) of Bi@H-TiO2/B-C3N4 is up to 223.08 μmol g?1 h?1. Excitingly, under visible light (λ > 400 nm), the highest HPR of Bi@H-TiO2/B-C3N4 is increased to 18.84 μmol g?1 h?1, which is about 67.3 times, 37.7 times and 6.8 times as high as that of H-TiO2, B-C3N4 and H-TiO2/B-C3N4 under the same conditions, respectively. Moreover, the electrochemical impedance spectroscopy and transient photocurrent tests manifest that the interface resistance of Bi@H-TiO2/B-C3N4 composite decreases and the photocurrent density increases after loading metal Bi. These results indicate that loading metal Bi as cocatalyst (providing more electron trapping sites) is beneficial to improve photocatalytic activity in the type II heterostructure composite. And the electron transfer directions (B-C3N4 → H-TiO2 → Bi or B-C3N4 → Bi) are proved by ultraviolet photoelectron spectroscopy test. Therefore, the Bi@H-TiO2/B-C3N4 photocatalyst with strong visible light absorption is expected to be a promising candidate in photocatalytic fields under visible light.
      原文链接:
    • NSTL
    • Elsevier

    Colorimetric detection of poly(methyl methacrylate) using polydiacetylene/zinc(II)/zinc oxide nanocomposites

    Pankaew A.Rueangsuwan J.Traiphol R.Traiphol N....
    11页
    查看更多>>摘要：? 2022 The Korean Society of Industrial and Engineering ChemistryThis study introduces a facile approach for fabricating colorimetric sensors that differentiate concentration and molecular weight of poly(methyl methacrylate) (PMMA). A cationic surfactant, cetyltrimethylammonium bromide (CTAB), is incorporated into the structure of polydiacetylene(PDA)/Zn2+/ZnO nanocomposites via a simple mixing process. The interaction between PMMA carbonyl group and CTAB headgroup is the key mechanism inducing color transition of the nanocomposites. The sensitivity can be tuned by adjusting experimental parameters including CTAB concentration, photopolymerization time, and PDA alkyl chain length. Solid-state sensors are fabricated by embedding into filter papers. Our finding extends the utilization of PDA-based materials in polymer sensing applications.
      原文链接:
    • NSTL
    • Elsevier