OICC PRESS Synthesis, characterization and investigation of photocatalytic activity of ZnMnO3/Fe3O4 nanocomposite for degradation of dye Congo red under visible light irradiation Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Synthesis, characterization and investigation of photocatalytic activity of ZnMnO3/Fe3O4 nanocomposite for degradation of dye Congo red under visible light irradiation https://doi.org/10.1007/s40090-020-00215-z EN Azam Zamani Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran Mirabdullah Seyed Sadjadi Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran 0000-0002-5731-7661 Alireza Mahjoub Department of Chemistry, Tarbiat Modares University, Tehran, Iran Mohammad Yousefi Department of Chemistry, Yadegar-E-Imam Khomeini(RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran Nazanin Farhadyar Department of Chemistry, Varamin Pishva Branch, Islamic Azad University, Varamin, Iran Journal Article 2023 10 06 ZnMnO3/Fe3O4 magnetic nanocomposites were fabricated via facile co-precipitation route and were calcined at 400 °C for 3 h. Synthesis of ZnMnO3/Fe3O4 magnetic nanocomposites were optimized by different weight percentages. Then, the as-synthesized sample was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), photoluminescence(PL), vibrating Sample Magnetometer (VSM), EDAX (Energy dispersive X-ray analysis), diffuse reflectance UV–Vis spectroscopy (DRS),ultraviolet–visible (UV–Vis) spectrometry, Bruner-Emmett-Teller (BET), transmission electron microscopy (TEM) and field emission scanning electron microscopy (FESEM). Based on the results, elemental analyses of the samples were similar to those expected from the initial concentrations of the solutions used during synthesis. The x-ray diffraction pattern revealed that ZnMnO3/Fe3O4 has a cubic structure and average particle size of the catalyst was found 27.43 nm. In addition, Fourier transform infrared spectra could confirm the presence of hydroxyl group and Fe–O bond vibration in the catalyst. Further, the superparamagnetic behavior of the synthesized nanocomposite at room temperature was confirmed by VSM studies. Furthermore, the photocatalytic performance of ZnMnO3/Fe3O4 samples were evaluated based on the removal of Congo red (CR) in aqueous solution in 60 min of under visible light irradiation. The experiment demonstrated that 0.10 g of ZnMnO3/Fe3O4 nanocomposites can degrade (98.17%) 50 mg l−1 of Congo red (CR) solution. The mechanistic study using scavengers propose that the superoxide (O2·−) is the most reactive species involved in the photodegradation of organic dyes. The photocatalytic degradation of Congo red conformed the pseudo-first-order kinetic model and the rate constant achieved for 0.10 g l−1 of ZnMnO3/Fe3O4 was (k = 0.0384 min−1). Finally, the effect of reaction time, pH, and loading of ZnMnO3/Fe3O4 on degrading Congo red was studied. The synthesized ZnMnO3/Fe3O4 nanocomposite can be potentially applied as a magnetically separable photocatalyst to deal with water pollution problems.

OICC PRESS Catalytic performance of Ni–Cu/TiO2 catalyst for conversion of H2S and SO2 to sulfur Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Catalytic performance of Ni–Cu/TiO2 catalyst for conversion of H2S and SO2 to sulfur https://doi.org/10.1007/s40090-020-00217-x EN Vida Nourozi Rad Department of Chemistry, Science and Research Branch, Islamic Azad University, Poonak-Hesarak, Tehran, Iran Mansoor Anbia Research Laboratory of Nanoporous Materials, Faculty of Chemistry, Iran University of Science and Technology, Narmak, 16846-13114, Tehran, Iran 0000-0002-2142-3219 Moayed Hossaini Sadr Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, Iran Karim Zare Department of Chemistry, Science and Research Branch, Islamic Azad University, Poonak-Hesarak, Tehran, Iran Journal Article 2023 10 06 The anatase TiO2-supported Ni–Cu bimetallic catalyst was prepared by Co-impregnation method and after shaping by three binders (bentonite, polyethylene glycol and poly vinyl alcohol) into extrudes, the effect of calcining temperature (200 °C, 400 °C, 600 °C and 800 °C) and calcining time (1, 3, 5 and 7 h) on the extrudes were investigated. According to the obtained results, the catalyst prepared at calcining temperature of 600 °C and calcining time of 5 h was selected as the optimal catalyst due to its anatase pure phase, high crystallinity and relatively high surface area. The as-prepared shape catalyst was evaluated as a Claus catalyst for conversion of H2S, CS2 and SO2 into elemental sulfur and provides high conversion of H2S 72.67%, CS2 69.77% and SO2 84.78%. The results indicated that the shaped catalyst with 75.50% of gas conversion efficiency is more active than the commercial Claus catalyst with 62.05% of conversion efficiency.

OICC PRESS Polyacetal/graphene/polypyrrole and cobalt nanoparticles electroconducting composites Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Polyacetal/graphene/polypyrrole and cobalt nanoparticles electroconducting composites https://doi.org/10.1007/s40090-020-00218-w EN Ahmed A. Haroun Chemical Industrial Research Division, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt Samir Kamel Cellulose and Paper Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt Amany M. Elnahrawy Physics Division, Department of Solid State, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt Ali A. Hammad Physics Division, Department of Solid State, National Research Centre, 33 El Bohouth St., Dokki, Giza, P.O. 12622, Egypt Imad Hamadneh Chemistry Departments, Faculty of Science, The University of Jordan, Amman, 11942, Jordan Ammar H. Al-Dujaili Hamdi Mango Centre for Scientific Research (HMCSR), The University of Jordan, Amman, Jordan 0000-0002-1759-8585 Journal Article 2023 10 06 This work deals with the preparation of polyacetal (PAC)/graphene nano-platelets (GNP) and/or polypyrrole (PPY) in the presence of cobalt acetate-based composites. These materials were simply prepared via in situ emulsion in combination with sonication strategy technique. The resulting composites were characterized via Fourier transform infrared spectroscopy, thermogravimetric analysis, transmitting electron microscope, and particle size distribution analysis using dynamic light scattering technique. PAC was prepared through the reaction of cellulose with benzaldehyde. The results indicated that GNP could be successfully suspended in PAC in the presence of epichlorohydrin as a crosslinker and/or PPY as a conducting polymer. PAC/GNP-based composites had a particle size around 298 nm. However, the size was increased to 984–1338 nm after the addition of polypyrrole. The prepared composites were analyzed via the dielectric constants (ε′), dielectric losses (ε″), and AC conductivities. The composite samples containing GNP, polyacetal/GNP, and polyacetal/GNP/polypyrrole showed superior conductivities about, 0.6 and 0.022 S/cm, respectively, relative to the other ones they can be used for electrical energy storage devices.

OICC PRESS Enhanced performance of terpolymer resin derived from resorcinol/formaldehyde/salicylic acid for antibacterial application Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Enhanced performance of terpolymer resin derived from resorcinol/formaldehyde/salicylic acid for antibacterial application https://doi.org/10.1007/s40090-020-00219-9 EN Abdulrahman Mohammad Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India Abdul Kareem Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India Azar Ullah Mirza Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India Shahnawaz Ahmad Bhat Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India Shahab A. A. Nami Department of Kulliyat, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh, 202002, India Sumbul Rehman Department of Ilmul Advia, Faculty of Unani Medicine, Aligarh Muslim University, Aligarh, 202002, India Nahid Nishat Materials Research Lab, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India Journal Article 2023 10 06 A terpolymer resin derived from Resorcinol, Formaldehyde and Salicylic acid was synthesized through condensation reaction. Transition metal ions namely Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) were incorporated into the resin forming polymer-metal complexes. Both the resin and the complexes were characterized by FTIR, UV–Vis., XRD, 1H NMR, TGA and SEM/EDX. Elemental analysis was carried out to determine the percentage of different elements present in the resin and its complexes. Conductivity measurement data showed higher conductivity of the metal complexes as compared to its precursor resin. The terpolymer resin and its metal complexes were tested against five strains of gram positive bacteria namely; S. aureus, S. mutans, S. pyrogenes, C. xerosis, C. diphtheria, and three strains of gram negative bacteria namely; E. coli, K. pneuomoniae and P. aeruginosa. All the metal complexes exhibited enhanced antibacterial properties as compared to its terpolymer resin. The Mn(II) and Co(II) demonstrated strong antibacterial activity.

OICC PRESS Structural, optical and photocatalytic studies of hexadecylamine-capped lead sulfide nanoparticles Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Structural, optical and photocatalytic studies of hexadecylamine-capped lead sulfide nanoparticles https://doi.org/10.1007/s40090-020-00220-2 EN Abimbola E. Oluwalana School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Private Bag X01, Pietermaritzburg, 3209, South Africa Peter A. Ajibade School of Chemistry and Physics, University of KwaZulu-Natal, Scottsville, Private Bag X01, Pietermaritzburg, 3209, South Africa 0000-0002-8581-2387 Journal Article 2023 10 06 Hexadecylamine-capped PbS nanoparticles were prepared from lead(II) complexes of dibenzyl dithiocarbamate (Dibzydtc) [PbS 1], imidazolyl dithiocarbamate (Imdtc) [PbS 2], 2-oxo-pyrrolidine dithiocarbamate (Pydtc) [PbS 3], diallyl dithiocarbamate (Diallyldtc) [PbS 4], and dihexyl dithiocarbamate (Dihexdtc) [PbS 5], at 120 °C. Powder X-ray diffraction patterns of the PbS nanoparticles are indexed to the face-centered cubic phase. The average particle sizes obtained from the TEM images are 19.04 ± 5.85 nm for PbS 1, 6.94 ± 1.71 nm PbS 2, 18.77 ± 3.37 nm PbS 3, 2.93 ± 2.20 nm PbS 4 and 22.02 ± 6.68 nm for PbS 5. The PbS nanoparticles are spherical in shape except for PbS 1 and PbS 3 with cubic shapes. The bandgap energies range from 3.0 to 3.8 eV and PbS 1 has the lowest bandgap of 3.0 eV while PbS 3 has the highest bandgap of 3.8 eV. The bandgaps are blue-shifted in comparison to the absorption band edges due to quantum size effect. The photocatalytic degradation of bromothymol blue by the as-prepared PbS nanoparticles showed highest degradation efficiency of 66% for PbS 3.

OICC PRESS Preparation of novel blue phosphate pigments in imitation of copper lazulite Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Preparation of novel blue phosphate pigments in imitation of copper lazulite https://doi.org/10.1007/s40090-020-00221-1 EN Hiroaki Onoda Department of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto, 606-8522, Japan 0000-0001-6267-2783 Ryota Sasaki Department of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto, 606-8522, Japan Journal Article 2023 10 06 Novel blue pigments were prepared from copper, magnesium, aluminum nitrate solutions and phosphoric acid with pH adjustments (pH 5, 7, 9). The obtained precipitates were heated at 300, 500, and 700 °C for 1 h. The precipitates and their thermal products were estimated with X-ray diffraction (XRD), infrared (IR) spectra, ultraviolet–visible (UV–Vis) reflectance spectra, and L*a*b* color space. Sample without heating is light blue powder. By heating at 300 °C, the blueness of samples decreased. The hue of samples became darker by heating. The best condition for the unheated sample was pH 7, and for the heated sample was pH 5 at 300 °C. Samples prepared at Cu/Mg = 1/1 showed a* and b* values closer to zero than samples prepared with Cu/Mg = 1/0. These materials have potential as new inorganic blue pigments for inks and paints.

OICC PRESS Performance of Pfaffia paniculata extract towards corrosion mitigation of low-carbon steel in an acidic environment Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 Performance of Pfaffia paniculata extract towards corrosion mitigation of low-carbon steel in an acidic environment https://doi.org/10.1007/s40090-020-00222-0 EN Rajesh Haldhar Department of Chemistry, Lovely Professional University, Punjab, 144411, India Dwarika Prasad Department of Chemistry, Shri Guru Ram Rai University, Dehradun, 248001, India Harshita Saharan Department of Chemistry, Lovely Professional University, Punjab, 144411, India Journal Article 2023 10 06 Low-carbon steel (LCS) in 0.5 M sulphuric acid is used to check the corrosion resistance performance of Pfaffia paniculata (P. paniculata) root extract. Notably, P. paniculata showed 91% corrosion resistance efficiency at 600 mg/L concentration. The adsorption of this inhibitor follows the Langmuir adsorption isotherm suggesting its monolayer formation on the LCS surface. The potentiodynamic polarization experiments indicated its nature as mixed adsorption behaviour. P. paniculata shows 88.34%, 90.16%, and 91.59% inhibition efficiency by weight loss, polarization, and EIS technique respectively. The scanning electron microscopy and atomic force microscopy techniques were used for the verification of protective layer on the LCS surface. The protective film formation study was checked using the UV–Vis. spectroscopy. Computational investigations were consolidated as a valuable report. All acquired outcomes confirmed that P. paniculata root extract can develop an efficient protective layer and resist the corrosion procedure.

OICC PRESS MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity Volume 11 (2020), IJIC Issue 4, December 2020 2023 10 06 MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity https://doi.org/10.1007/s40090-020-00223-z EN Ibrahim F. Waheed Department of Industrial Chemistry, College of Science, Tikrit University, Tikrit, Iraq 0000-0002-8984-1783 Omer Yasin Thayee Al-Janabi College of Petroleum Processes Engineering, Petroleum and Gas Refining Engineering, Tikrit University, Tikrit, Iraq 0000-0001-5435-112X Abdalghany K. Ibrahim Department of Industrial Chemistry, College of Science, Tikrit University, Tikrit, Iraq Peter J. S. Foot School of Chemical and Pharmaceutical Sciences, Kingston University London, Kingston upon Thames, KT1 2EE, UK 0000-0002-2122-3129 Muayad A. S. Alkarawi College of Petroleum Processes Engineering, Petroleum and Gas Refining Engineering, Tikrit University, Tikrit, Iraq 0000-0002-0880-7883 Baidaa M. Ali Department of Industrial Chemistry, College of Science, Tikrit University, Tikrit, Iraq Faiz M. Al-Abady Department of Industrial Chemistry, College of Science, Tikrit University, Tikrit, Iraq Journal Article 2023 10 06 Magnesium ferrite is a visible light absorber, and when combined with multiwall carbon nanotubes (MWCNTs), it can lead to low electron–hole recombination rates, thus improving its photocatalytic activity. In this work, a novel MgFe2O4/CNTs nanocomposite catalyst has been synthesized via anchoring MgFe2O4 nanoparticles onto MWCNTs surface by a sol–gel and microwave-assisted route. The prepared catalyst was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning and transmission electron microscopy, energy-dispersive X-ray analysis and vibrating scanning magnetometry. MgFe2O4 nanoparticles showed a cubic inverse spinel ferrite structure, while MgFe2O4/CNTs nanohybrids showed combinations of both structures. Morphology studies including Brunauer–Emmett–Teller (BET) analysis confirmed a 40 m2 g−1 specific surface area with narrow mesoporous size distribution for the MgFe2O4/CNTs nanocomposite. The photocatalytic performance of the new catalyst was assessed by photodegradation of methylene blue (MB). The experimental results demonstrated that MgFe2O4/CNTs exhibited strong photocatalytic activity, catalysing the photooxidation of about 98% of MB in 25 min under sunlight.