OICC PRESS Efficacies of sodium nitrite and sodium citrate–zinc acetate mixture to inhibit steel rebar corrosion in simulated concrete interstitial solution contaminated with NaCl Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Efficacies of sodium nitrite and sodium citrate–zinc acetate mixture to inhibit steel rebar corrosion in simulated concrete interstitial solution contaminated with NaCl https://doi.org/10.1007/s40090-018-0142-7 EN Binsi Paulson Maliekkal Research Division, Department of Chemistry, St. Thomas’ College (Autonomous), Thrissur, Kerala, 680001, India Joby Thomas Kakkassery Research Division, Department of Chemistry, St. Thomas’ College (Autonomous), Thrissur, Kerala, 680001, India Vinod Raphael Palayoor Department of Chemistry, Government Engineering College, Thrissur, Kerala, 680009, India Journal Article 2023 10 18 Investigations were carried out to compare the effectiveness of compounds such as sodium nitrite, trisodium citrate (TSC) and TSC–zinc acetate to inhibit the corrosion of steel rebar in simulated concrete interstitial solution contaminated with chloride and to explain the mechanism of corrosion inhibition on reinforcing steel by these systems. Inhibition efficiency of these systems was studied by electrochemical techniques such as potentiodynamic polarization and half cell potential measurements. Electronic spectral studies of simulated pore solution and FT-IR spectral investigations of the film deposited on steel surface were carried out for understanding the mechanism of corrosion inhibition. Microscopic surface analysis was conducted to obtain the surface morphological behaviour of steel rebar. TSC alone was not exhibited good corrosion inhibition at very low and high concentrations according to electrochemical studies. However, in the presence of zinc acetate, corrosion protection efficiency of TSC increased appreciably. When comparing with sodium nitrite, TSC in the presence and absence of zinc acetate displayed good corrosion inhibition efficiency. Among a number of samples, TSC 100 ppm-zinc acetate 50 ppm combination showed maximum corrosion inhibition efficiency on steel rebar in simulated concrete interstitial solution.

OICC PRESS Study of anti-corrosion activity of Algerian L. stoechas oil on C38 carbon steel in 1 M HCl medium Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Study of anti-corrosion activity of Algerian L. stoechas oil on C38 carbon steel in 1 M HCl medium https://doi.org/10.1007/s40090-018-0143-6 EN Nadia Belarbi Center for Scientific and Technical Research in Physico-Chemical Analysis, C.R.A.P.C, Bp 384, Bousmail, Algeria Spectrochemistry and Structural Pharmacology Research Laboratory, Department of Chemistry, Faculty of Science, Tlemcen University, Tlemcen, Algeria Faycal Dergal Center for Scientific and Technical Research in Physico-Chemical Analysis, C.R.A.P.C, Bp 384, Bousmail, Algeria Ilyes Chikhi Laboratory of Natural and Bioactive Substances (LASNABIO), University of Tlemcen, Bp 119 Imama, Tlemcen, Algeria University Center of Ain Temouchent, Temouchent, Algeria Salah Merah Laboratory of Analytical Chemistry and Electrochemistry, Department of Chemistry, Faculty of Science, Tlemcen University, Tlemcen, Algeria Djahida Lerari Center for Scientific and Technical Research in Physico-Chemical Analysis, C.R.A.P.C, Bp 384, Bousmail, Algeria Khaldoun Bachari Center for Scientific and Technical Research in Physico-Chemical Analysis, C.R.A.P.C, Bp 384, Bousmail, Algeria Journal Article 2023 10 18 The current study was designed to give more knowledge and helping to exploit the leaves of the plants L. stoechas collected in Tlemcen region in the west of Algeria by determining the anti-corrosive activity of its essential oil. The inhibitory efficiency of the essential oil of the plant obtained by hydrodistillation and characterized by GC and GC/MS was studied using gravimetric and electrochemical methods (polarization curves and electrochemical impedance). The effect of temperature on the corrosion behavior of the steel and the inhibitory efficiency was studied in a temperature range of 303–323 K at 2 g/L. The surface morphology of the samples immersed in 1 M HCl for 24 h, before and after adding inhibitor at (2 g/L at 30 °C) was analyzed by scanning electron microscope (SEM) Quanta 250 with tungsten filament from the company FEI. Results show that the addition of the essential oil of the plant to the medium induces a diminish in the rate of corrosion and augmentation in the inhibitory efficiency of the oil. We established that the inhibition efficiency increase with concentration of the essential oil of lavender to attain 76.19% at 2 g/L. Polarization curves revealed that lavender oil react as a mixed-type inhibitor. EIS spectra exhibit one capacitive loop and confirm the inhibitive ability, and the changes in impedance parameters were indicative of adsorption of essential oil of lavender on the metal surface. The thermodynamic parameters indicate that the adsorption of the molecules of the oil takes place according to the Langmuir isotherm in the corrosive medium studied and that they are physisorbed on the metal surface. The analysis of the surface by electron microscopy demonstrates the absence of surface attack patterns in the presence of the oil. The results obtained from different tested techniques were in good agreement.

OICC PRESS Simple methods for immobilizing titania into pumice for photodegradation of phenol waste Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Simple methods for immobilizing titania into pumice for photodegradation of phenol waste https://doi.org/10.1007/s40090-018-0144-5 EN Slamet Slamet Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok, 16424, Indonesia Setiadi Setiadi Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok, 16424, Indonesia Dewi Tristantini Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok, 16424, Indonesia Eny Kusrini Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok, 16424, Indonesia Davin Philo Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Depok, 16424, Indonesia Journal Article 2023 10 18 Simple methods for immobilizing titania into pumice were applied, where the products had been used for the application of photodegrading phenol waste. There were two simple methods, which were used separately: solvent evaporation and dip coating. Based on titania sol stability test, it was observed that acid condition would be favourable for immobilizing titania unto pumice, and preferable dispersion medium for solvent evaporation method was ethanol, while dip coating method was better to use aquadest (water). Prepared samples were characterized by FE-SEM, EDX, XRD, and BET analysis. Mechanical strength and photodegradation tests were conducted to observe the quality and ability of immobilized photocatalyst. Experimental results show that both methods had produced mechanically strong immobilized titania, where dip coating method tended to produce homogen solid film of titania on the outer surface of pumice, while solvent evaporation method could deliver titania deeper unto the inner part of the pumice. Catalyst detachment level of immobilized titania nanotube by dip coating method was 4.6%, while the one of the products of solvent evaporation method was 5.0%. Furthermore, in terms of photocatalytic activity, product of dip coating method gave slightly better performance (with 28% of phenol elimination after 240 min) than the product of solvent evaporation method (24%), due to shading effect, mostly occurring to immobilized catalyst in the inner part of the pumice.

OICC PRESS Synthesis and evaluations of Fe3O4–TiO2–Ag nanocomposites for photocatalytic degradation of 4-chlorophenol (4-CP): effect of Ag and Fe compositions Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Synthesis and evaluations of Fe3O4–TiO2–Ag nanocomposites for photocatalytic degradation of 4-chlorophenol (4-CP): effect of Ag and Fe compositions https://doi.org/10.1007/s40090-018-0145-4 EN Amir Shojaie Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran Moslem Fattahi Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran Sahand Jorfi Department of Environmental Health Engineering, School of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Bahram Ghasemi Department of Chemical Engineering, Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran Journal Article 2023 10 18 This work reports the synthesis of nanocomposites of Fe3O4–TiO2–Ag with different weight concentrations of iron (Fe) and silver (Ag) doped on TiO2. The nanocomposites were prepared by a novel and facile ultrasonic-assisted hydrothermal method, and their effectiveness was evaluated for photocatalytic degradation. X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and N2 adsorption–desorption methods were performed to characterize the prepared catalysts. The photocatalytic activity of Fe3O4–TiO2–Ag was studied by illumination of 4-chlorophenol (4-CP) in an aqueous solution under UV irradiation, which showed significant enhancement in the degradation of 4-CP compared to un-doped nano TiO2. The maximum degradation of 97% in 165 min for Fe3+ and Ag+ with 0.3 and 2% wt. was observed. Furthermore, the stability and reusability of the synthesized catalysts were studied and demonstrated only 3% decrease in removal efficiency after five cycles.

OICC PRESS Methacrylate copolymers and their composites with nano-CdS: synthesis, characterization, thermal behavior, and antimicrobial properties Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Methacrylate copolymers and their composites with nano-CdS: synthesis, characterization, thermal behavior, and antimicrobial properties https://doi.org/10.1007/s40090-018-0146-3 EN Mehdihasan I. Shekh Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, Gujarat, India Dijit M. Patel Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, Gujarat, India Nirmal N. Patel Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, Gujarat, India Umesh S. Patel Department of Chemistry, Sardar Patel University, Vallabh Vidhyanagar, 388120, Gujarat, India Kaushal P. Patel Department of Advanced Organic Chemistry, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, 388421, Gujarat, India Journal Article 2023 10 18 Homo- and copolymers of 2-(N-phthalimido)ethyl methacrylate (NPEMA) and p-chlorophenyl methacrylate (PCPMA) were prepared in N,N-dimethyl formamide (DMF) solution at 70 °C using 2,2-azo-bisisobutyronitrile (AIBN) as initiator. The nano-CdS-doped polymer composite of NPEMA and PCPMA was prepared via in situ technique. The homo- and copolymers of NPEMA and PCPMA were characterized using FT-IR spectroscopy and gel permeation chromatography (GPC). The polymer nano composites were characterized using FT-IR spectroscopy, X-ray diffraction, and transmission electron microscopy. The reactivity ratios (r1 and r2) were obtained from the various linear graphical methods. The values of r1 (NPEMA) = 0.55 and r2 (PCPMA) = 1.30 were found from the same graphical methods. The copolymer microstructures were found from the mean sequence length, run number, and dyad fraction. Thermal behavior of polymers and polymer nano composites under nitrogen atmosphere was studied. The activation energies of neat polymers were varied in the range of 56–85 kJ/mol, while 28–56 kJ/mol energies were found for nano-CdS-doped polymer composites. The thermodynamic parameters of thermal degradation were also obtained. Kinetic and thermodynamic parameters were confirming the stability of the neat polymers than polymer nano composites. The polymers were assessed on different microorganisms for obtaining the antimicrobial properties. Overall, the polymers permit 10–52, 20–58, and 18–56% growth of bacteria, fungi, and yeast, respectively.

OICC PRESS Thermo-catalytic degradation of different plastics to drop in liquid fuel using calcium bentonite catalyst Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Thermo-catalytic degradation of different plastics to drop in liquid fuel using calcium bentonite catalyst https://doi.org/10.1007/s40090-018-0147-2 EN Achyut K. Panda Department of Chemistry, Veer Surendra Sai University of Technology Burla, Odisha, 768018, India Journal Article 2023 10 18 Thermal and catalytic pyrolysis of individual plastics such as polypropylene (PP), low-density polyethylene (LDPE), high-density polyethylene (HDPE), and mixture of all three plastics (PP + LDPE + HDPE) were carried out in the presence of calcium bentonite as catalyst in a batch reactor to obtain suitable liquid fuel. The dependencies of process temperature, effect of catalyst, feed composition on yield of the fuel fraction were determined. The major product of both thermal and catalytic pyrolysis was condensable fraction in the temperature range 400–550 °C. The reaction rate, quality and quantity of the major products changed with change of temperature and catalyst concentration. The highest yield of pyrolysis liquid product was 88.5 wt% from PP, 82 wt% from LDPE, 82.5% from HDPE and 81 wt% from mixed plastics at 500 °C with 1:3 catalyst to plastic ratio. The oil obtained in this process was analyzed using FTIR and GC–MS for its composition. Fuel properties of the oil are evaluated to understand its uses as a fuel or chemical feedstock.

OICC PRESS Experimental survey of temperature, time and cross-linking agent effects on polydimethylsiloxane composite membranes performances in sulfur removal Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Experimental survey of temperature, time and cross-linking agent effects on polydimethylsiloxane composite membranes performances in sulfur removal https://doi.org/10.1007/s40090-018-0148-1 EN Mohsen Farsi Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran Bizhan Honarvar Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran Amir Heydarinasab Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran Mehdi Arjmand Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran Journal Article 2023 10 18 Four types of the multi composite membranes were fabricated to decrease the sulfur content in diesel fuel, which the investigated polymers are polydimethylsiloxane (PDMS), polyethyleneglycol (PEG), polyethersulfonic (PES) and cross-linked polyacrylonitrile (PAN) with tetra-ethyl-ortho-silicate (TEOS). The effects of the operating parameters such as the cross-linking temperature (65–85 °C) and cross-linking time (0.5–2.5 h) were studied on the membranes performances. The results showed that the sulfur selectivity of PDMS/PEG/PES/PAN membranes were improved through increasing temperature and time. In addition, most of the total flux and the lowest amount of sulfur in the back flow is related to composite membranes of PEG + PDMS.

OICC PRESS Anticorrosive ability of electrochemically synthesized 2,2′-disulfanediyldianiline for mild steel corrosion: electrochemical and thermodynamic studies Volume 9 (2018), IJIC Issue 2, June 2018 2023 10 18 Anticorrosive ability of electrochemically synthesized 2,2′-disulfanediyldianiline for mild steel corrosion: electrochemical and thermodynamic studies https://doi.org/10.1007/s40090-018-0149-0 EN M. R. Vinutha Department of Chemistry, School of Chemical Sciences, Jnana Sahyadri Campus, Kuvempu University, Shankaraghatta, Karnataka, 577451, India T. V. Venkatesha Department of Chemistry, School of Chemical Sciences, Jnana Sahyadri Campus, Kuvempu University, Shankaraghatta, Karnataka, 577451, India C. Nagaraja Department of Chemistry, School of Chemical Sciences, Jnana Sahyadri Campus, Kuvempu University, Shankaraghatta, Karnataka, 577451, India Journal Article 2023 10 18 The corrosion inhibition property of electrochemically synthesized 2,2′-disulfanediyldianiline compound was investigated for mild steel in 1 M HCl using electrochemical and weight loss techniques. The morphology of steel surface was examined using SEM and optical microscopy. Thermodynamic parameters were determined and discussed. To study the effect of the molecular structure of inhibitor on its inhibitive performance, quantum chemical studies were performed using density functional theory by B3LYP/6-311G (d,p) basis set. The theoretical studies depicted –N and –S atoms as the adsorption centers in molecule.