Article
Materials Science, Multidisciplinary
Meihong Zhan, Weimin Gao, William Nguyen, Hongmei Yu, Eric Amador, Wei Chen
Summary: Triadic silica-supported polyhexamethylene guanidine@nano-hydroxyapatite (HAP) composites were prepared and used for solid phase extraction of Cr (VI) in a micro-column system, with its determination by flame atomic absorption spectrometry (FAAS). The results showed that the triadic silica-supported nano-HAP composites efficiently adsorbed Cr (VI) at pH 4.0-6.0, while almost no adsorption of Cr (III) occurred. The method exhibited good linearity, detection limit, and precision for Cr (VI) determination, and it was successfully applied to the analysis of chromium contents in cereal and water samples.
MATERIALS TODAY ADVANCES
(2022)
Article
Metallurgy & Metallurgical Engineering
Aamir Iqbal, M. Rasul Jan, Jasmin Shah
Summary: In this study, activated carbon was synthesized from sawdust and modified to extract cadmium, lead and nickel from waste electrical and electronic equipment (WEEE). The modified adsorbent showed high retention factor for the metal ions and can be regenerated for multiple use. The method proved efficient even with high sample volumes, with significant enrichment factors achieved for the target metal ions.
Article
Chemistry, Physical
Mansoor Khan, Ozgur Ozalp, Muslim Khan, Mustafa Soylak
Summary: Fe3O4-Ti3AlC2 Max phase impregnated with 2-(5-Bromo-2-pyridylazo-5-(diethylamino) phenol) was prepared and used for the extraction of cadmium, lead and cobalt from water and food samples. The impregnated material was characterized and optimized factors impacting the recovery of analytes. The proposed strategy showed good performance in certified reference materials and real samples.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Ozgur Ozalp, Mustafa Soylak
Summary: Fe3O4@XAD-16 was utilized as an adsorbent for magnetic dispersive solid phase extraction of Cu(II), achieving efficient enrichment of the target analyte. The optimized enrichment method demonstrated high accuracy in determining copper contents in food and water samples.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Lei Jin, Zhao-Yun Wang, Zhuan-Yun Cai, Jia-Qiang Yang, An-Ni Zheng, Fang-Zu Yang, De-Yin Wu, Dongping Zhan
Summary: In this work, a novel PAN-based acidic sulfate copper electroplating process is developed for compact, homogeneous, and conformal copper thickening of through holes (TH). The adsorption characteristics, electrochemical properties, and interaction mechanisms of three additives (PEG, SPS, and PAN) are studied. SEM and OM analysis show that PAN leads to fine-grained copper coating and high throwing power in TH. Theoretical calculations demonstrate that PAN has the highest binding energy with the copper surface among the three additives. Cyclic voltammetry experiments confirm the accelerated and weakly suppressed copper electrodeposition by PAN at the center and mouth of TH, respectively. The addition of PAN to the solution containing PEG and SPS significantly decreases the relative electric charge, achieving closer copper electronic electroplating rate at the center and mouth of TH. The complex synergistic effects of PEG, SPS, and PAN contribute to the compact, homogeneous, and conformal copper thickening of TH.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Gizem Kahve Yildirim, Yavuz Surme
Summary: A micelle mediated phase separation and preconcentration process was developed for the determination of trace level Pb (II) ions in water samples using flame atomic absorption spectrometry (FAAS) after chelation with thionine. The selectivity of the method was validated in the presence of five different possible chelatable metal ions with thionine ligand. The parameters of the method, including pH, surfactant concentration, ligand concentration, reaction temperature, incubation time and matrix ions, were optimized. The method showed good reliability with a relative standard deviation (RSD %) of less than 5% and had a detection limit (LOD) and quantitation limit (LOQ) of 1.5 and 5 μg/L, respectively.
Article
Environmental Sciences
Jasmina Sulejmanovic, Mustafa Memic, Elma Sehovic, Rasim Omanovic, Sabina Begic, Mirha Pazalja, Atifa Ajanovic, Ofaira Azhar, Farooq Sher
Summary: In this study, a simple and reliable preconcentration column method was developed for the determination of eight metallic ions in model solutions and real water samples. The column was filled with silica gel modified with vanadium(V) oxide as an efficient and economical adsorbent to remove metallic ions from liquid solutions.
Article
Engineering, Electrical & Electronic
Ayalew Manahilie Dinkirie, Abi M. Tadesse, Tesfahun Kebede
Summary: Fe-Al-Mn nanocomposite was synthesized and used for preconcentration and determination of Pb(II), Cd(II), and U(VI) ions in aqueous solution. The as-synthesized nanocomposite had a rhombohedral structure with a crystal size of 30.81 nm. A sensitive solid-phase preconcentration procedure using FAAS and Uv-Vis was developed, with a maximum adsorption capacity of 12.5 (Pb), 12.8 (Cd), and 14.9 (U) mg g(-1), and a preconcentration factor of 15. The method showed low detection limits and good precision. The nanocomposite exhibited high recovery rates for Pb(II), Cd(II), and U(VI) ions. The Fe-Al-Mn nanocomposite is considered to be a promising solid phase extraction material with potential applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Applied
Bedrihan Kartoglu, Aleyna Bahcivan, Sezin Erarpat, Ahsen Bayraktar, Sezgin Bakirdere
Summary: Cobalt nanoleaves (Co-NL) were synthesized by microwave-assisted synthesis and used as an adsorbent in a preconcentration method (CNL-PM) to concentrate trace levels of lead in blue butterfly tea extract and tap water. The adsorbent was characterized using XRD, SEM, and FTIR. Measurements were performed using SQT-FAAS. Under optimum conditions, the LOD and LOQ for the CNL-PM-SQT-FAAS system were 2.4 and 7.9 μg/kg, respectively. Recovery experiments were conducted for tap water samples and the developed method was applied to butterfly tea extract samples, resulting in lead concentrations of 0.26 ± 0.01 and 0.36 ± 0.01 μg/g for A and B tea samples, respectively.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Analytical
Alexa Rihana-Abdallah, Zhe Li, Katherine C. Lanigan
Summary: The determination of heavy metals in drinking water is crucial for quality assessment and pipeline corrosion detection. This study developed a simple, cost-effective method based on cloud point extraction for preconcentration and determination of iron, lead, and cadmium, with a 20-fold reduction in detection limit. Results demonstrate high accuracy and reproducibility of this method for the analysis of iron, lead, and cadmium in water samples by FAAS.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Applied
Hassan Elzain Hassan Ahmed, Ali Mohammednour Ali Mohammed, Mustafa Soylak
Summary: A novel magnetic Luffa@TiO2 sorbent was synthesized and characterized for the solid phase extraction of Pb(II). Optimized analytical parameters and validated with certified reference materials, the method showed good preconcentration efficiency and low detection and quantification limits for both liquid and solid samples.
Article
Chemistry, Physical
Eugenio Gibertini, Federico Carosio, Kubra Aykanat, Alessandra Accogli, Gabriele Panzeri, Luca Magagnin
Summary: The study proposes a new method of encapsulating red phosphorus particles with a silica shell for flame retardancy in textiles. Through sol-gel process, a uniform silica shell was successfully achieved, improving the thermal stability of red phosphorus.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Applied
Natalia Manousi, Abuzar Kabir, Kenneth G. Furton, Magdalini Stathogiannopoulou, Eleni Drosaki, Aristidis Anthemidis
Summary: A novel sol-gel pyridylethylthiopropyl functionalized silica-based sorbent was synthesized and used in an online column preconcentration system coupled with flame atomic absorption spectrometry for metal determination. The method was successfully applied for the analysis of commercially available beers, demonstrating its operational simplicity and good performance characteristics.
Article
Biochemistry & Molecular Biology
Piyanat Issarangkura Na Ayutthaya, Chonnipa Yeerum, Kullapon Kesonkan, Kanokwan Kiwfo, Kate Grudpan, Norio Teshima, Hiroya Murakami, Monnapat Vongboot
Summary: A monolithic rod of PUF-PAR was developed as a simple chemical sensor for lead assays, with smartphone detection and image processing capabilities. The method offers a fast and straightforward approach for lead detection without the need for sample preparation, showing good agreement with ICP-OES results.
Article
Chemistry, Analytical
Mustafa Soylak, Mohamed Alasaad, Ozgur Ozalp
Summary: Magnesium cobaltite (MgCo2O4) nanosorbent was prepared and applied for enrichment and separation of Pb(II) in solid phase extraction. Optimized parameters were determined to achieve the best recovery of Pb(II) ions. The developed SPE method showed satisfactory results in the determination of lead(II) in water and food samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
S. L. Zhao, F. S. Chen, J. Zhang, S. B. Ren, H. D. Liang, S. S. Li
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2015)
Article
Materials Science, Multidisciplinary
Yong Wang, Jaka Sunarso, Guihua Chen, Songlin Zhao, Zhenzhong Liu, Yeyun Wei
Article
Green & Sustainable Science & Technology
Songlin Zhao, Huading Liang, Hua Yan, Zhengzhong Yan, Suqing Chen, Xiandi Zhu, Miaoxian Cheng
CLEAN-SOIL AIR WATER
(2010)
Article
Engineering, Chemical
Fushan Chen, Songlin Zhao, Tao Yang, Taotao Jiang, Jun Ni, Houfeng Xiong, Qunfeng Zhang, Xiaonian Li
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Songlin Zhao, Changhua Ge, Zhenzhong Yan, Jie Zhang, Shibin Ren, Huading Liang, Fushan Chen, Xiaonian Li
MATERIALS CHEMISTRY AND PHYSICS
(2019)
Article
Chemistry, Multidisciplinary
Fushan Chen, Tao Yang, Songlin Zhao, Taotao Jiang, Lu Yu, Houfeng Xiong, Chuankun Guo, Yufang Rao, Yan Liu, Liu Liu, Jian Zhou, Pengxiang Tu, Jun Ni, Qunfeng Zhang, Xiaonian Li
CHINESE CHEMICAL LETTERS
(2019)
Article
Engineering, Environmental
Songlin Zhao, Fushan Chen, Xiandi Zhu, Weijun Liu, Chenlin Wu, Jie Zhang, Shibin Ren, Zhengzhong Yan, Wenli Cao, Qunfeng Zhang, Xiaonian Li
Summary: A novel hierarchically porous N-doped carbon material was successfully synthesized using a soft templating method, demonstrating a high surface area and adsorption capacity for the removal of hydrophilic dyes from aqueous effluents. Additionally, the sorbent showed excellent regeneration capability after multiple cycles.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Songlin Zhao, Fushan Chen, Qunfeng Zhang, Lingtao Meng
Summary: Nitrogen-doped porous carbon materials have high potential in metal-free electrocatalysts for renewable energy conversion systems. A convenient and environmentally friendly method was reported to fabricate nitrogen-doped mesoporous carbon with high surface area and nitrogen-oxygen doping levels. The NMC-700 exhibited the highest electrocatalytic activity for oxygen reduction reaction, comparable to that of a commercial Pt/C catalyst with long-term stability.
Article
Chemistry, Physical
Songlin Zhao, Huading Liang, Yafen Zhou
CATALYSIS COMMUNICATIONS
(2007)
