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LaNiO3 nanopowders are synthesized by sol–gel and sol-gel combustion methods using citric acid, ascorbic acid and sucrose as chelating agents, and ethanol and water as solvents. The precursor thermal decomposition towards the final solid was analyzed by X-ray diffraction, differential thermal analysis and thermogravimetric techniques which were also used to provide the adequate temperature of calcination (800°C) for achievement of the final perovskite. After calcination, the nanocomposites were characterized by powder size distribution, Fourier transform infrared spectroscopy and X-ray diffrac..read more
Djani Faiçal, Arturo Martínez-Arias and Muazzez Gürgan
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 207
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In the present study, the reaction process of H2S removal by calcined phosphate ore slurry was investigated by XRD and kinetics analysis. It was found that the absorption amount of H2S was 69.47 mg in 200 min, and 70.09% of the absorption caused by calcium oxide, indicating that the reaction was mainly the action of calcium oxide. Furthermore, it is showed that Fe2O3 played an important role in the removal process. Fe(III) can be dissolved form the phosphate ore, and became an efficiently catalytic oxidant. H2S can be catalytically oxidized by Fe(III)/Fe(II) system. It was indicated that about..read more
Dongdong Zhang, Chenghao Sha, Tianyan Feng, Bo Tan, Ping Ning
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 217
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In this work, we have successfully fabricated bronze phase monoclinic TiO2 (B) nanosheets from TiCl3 under hydrothermal conditions. The fabricated samples were calcined at different annealing temperature (100, 200, 300, 400 and 500 oC) to select optimum temperature under UV light irradiation for the efficient photocatalytic water splitting. Different techniques were used for the characterization of fabricated photocatalysts. Interestingly, the sample calcined at 400 oC delivered optimum H2 evolution from water which is attributed to the relatively high surface area and effective charge separat..read more
Min Xu, Muhammad Shakeel Khan, Perveen Fazil, Muhammad Ateeq
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 223
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Coal mining is still one of the most tough, nasty, and dangerous jobs in the world, with more fatalities than any other. The present study assessed zinc (Zn) and cadmium (Cd) in scalp hair and blood samples of 270 coal mining field employees, working in Hyderabad, Pakistan, aged 18-55 years. The scalp hair and blood samples of age-matched healthy volunteers (n= 70) were examined for chosen elements for a comparison analysis. For understudied metals, environmental samples (soil, water, and coal) from coal mining fields and nonindustrial areas were investigated. The Zn levels in the scalp hair a..read more
Hassan Imran Afridi, Qutubuddin Solangi, Tasneem Gul Kazi, Farah Naz Talpur, Jameel Ahmed Baig, Ghulam Qadir Chanihoon, Almas Rahoojo
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 232
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Based on the solvothermal method, two new MOFs with 3-(1-Oxo-1H-2,3-dihydroisoindol-2-yl)benzoic acid as the organic ligand, Zn-HBPA and Zn-bpy-HBPA were synthesized. The structure of MOFs was characterized by 1H-NMR, XRD, FT-IR and SEM. A series of modified cellulose paper-based functional materials with different spraying times were prepared by flame spraying method, and the fluorescence property of MOFs modified cellulose paper to EtOH small molecules was investigated by fluorescence spectrometer. The results of FT-IR and SEM showed that the flame spraying method could effectively improve t..read more
Qiang Yang, Meiyun Zhang, Wei Gong, Xiaowei Cui, Chunsheng Zhou
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 246
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The aim of this study was to develop and validate a simple high performance liquid chromatography (HPLC) method for the determination of cefovecin sodium in small volume of lion’s plasma. Analytical separation was obtained in less than 5 minutes (4.29-4.42 min) using a C-18 column with UV detection at λmax 254nm. The extraction of cefovecin sodium was carried out in methanol and acetonitrile. The mobile phase was composed of water: acetonitrile: methanol in a ratio of 60:20:20 at pH 3.1. The method was validated according to FDA Bioanalytical assay guidance. The limit of detection of cefovecin..read more
Sultan M. Alshahrani and John Mark Christensen
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 256
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Syzygium aromaticum (Myrtaceae) flower buds (clove) are traditionally known to possess antimicrobial, antiprotozoal, antiviral and other activities, including the antinociceptive action. Scientific evidence also suggests the antileishmanial, antiherpetic and anti-HIV activities of the buds. This paper reports the antinociceptive activity of S. aromaticum flower buds, reinforcing its use in decreasing the pain. The present study was designed to confirm the analgesic activity of S. aromaticum extract and seven of its fractions to reveal the common belief in its painkilling effects. We chose two..read more
Sara, Sabira Begum, Saima Mahmood Malhi, Shabana U. Simjee, Bina. S. Siddiqui
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 263
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2,5-Diphenyl-3,4-di(phenylethenyl)cyclopentadienone (2), -pyrrole (3), and -thiophene (4) have been synthesized by bi-steps strategy. Step one involves the synthesis of cinnamil (1) by the condensation of 2,3-butanedione with benzaldehyde in the presence of Pyrrolidine as a catalyst. Step two involves the synthesis of 2,5-diphenyl-3,4-di(phenylethenyl)cyclopentadienone (2), -pyrrole (3), and -thiophene (4) by the condensation of cinnamil (1) with dibenzyl ketone, dibenzylamine, and dibenzyl sulfide, respectively in the presence of sodium hydride (base) and methylene chloride (solvent) while s..read more
Syeda Shaista Gillani, Munawar Ali Munawar, Hafiz Adnan Ahmad, Rabia Babar, Khalid Mohammed Khan, Jamil Anwar Chaudhary
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 270
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High yielding syntheses of new esters (1a-1l) have been developed by way of facile one-pot reaction of vanillic acid (1) with a variety of 2-bromoacetophenone derivatives. Their structures were elucidated through spectroscopic data. Vanillic acid and its newly synthesized esters have been screened for antioxidant activity along with inhibition studies against the enzymes lipoxygenase and urease, respectively. The compound 1c exhibited potent antioxidant activity with an IC50 value of 44.5±0.72 μ M, while 1e showed significant inhibitory potential against lipoxygenase with an IC50 value of 11.4..read more
Muhammad Shaiq. Ali, Jawad Ullah, Mehreen Lateef, Seerat Iqbal and Sadia Zikr-Ur-Rehman
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 277
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This study describes the simple and facile fabrication of silica-tagged magnetic nanostructures (Si@MNs) applied as a nanocatalyst to degrade Rhodamine-B (Rh-B) Dye from the real water samples. Fabricated material has been characterized by using different modern analytical techniques such FT-IR, SEM, XRD, ZS, ZP. According to a morphological study, the fabricated material contains a hexagonal, monoclinic shape and 68 nm in size after successful fabrication and characterization. The catalytic material has been used to degrade the Rh-B Dye. Various parameters have been optimized, such as the eff..read more
Abdul Rauf Shaikh, Ghulam Qadir Shar and Aamna Balouch
- 24 May 2022
- Volume Detail: VOLUME 44, NO3, JUNE-2022
- Pages: 284
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