Article
Engineering, Chemical
E. Shin, D. B. Dreisinger, A. D. Burns
Summary: In this study, zirconium pre-loaded chelating resin with AMPA functional group was found to effectively remove fluoride from sodium sulfate electrodialysis brine solution. The resin demonstrated stability and achieved desirable fluoride adsorption results under a range of operating conditions.
Article
Engineering, Environmental
Celal Duran, Aslihan Yilmaz Camoglu, Duygu Ozdes, Olcay Bekircan
Summary: This research successfully achieved the simultaneous analysis of Cu(II), Cd(II), and Ni(II) ions in water samples by using a novel organic co-precipitant CCMBATT in combination with carrier element-free co-precipitation technique. The highest efficiency in terms of heavy metal recovery was achieved by optimizing factors such as solution pH, co-precipitant concentration, and sample volume.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Yiting Zheng, Qingxuan Li, Chenfei Wang, Ming Su
Summary: This paper introduces a new method for enhancing the sensitivity of fluorescence detection of lead ions in water by utilizing the volume reduction of hydrogels upon dehydration. The method is low-cost, easy to operate, and highly sensitive, making it suitable for detecting lead ions in drinking water.
Article
Biochemistry & Molecular Biology
Kowit Suwannahong, Chadrudee Sirilamduan, Anat Deepatana, Torpong Kreetachat, Surachai Wongcharee
Summary: In this study, a novel polymeric chelating resin, Dowex-M4195, was used as an alternative for investigating the behavior of copper (II) in acidic solution through an ion exchange method. The optimized conditions yielded a copper (II) removal capacity of approximately 31.33 mg/g at a low pH. The findings suggest that H+ Dowex-M4195 can be applied as a precursor for the reuse and regeneration of copper (II) in electronic waste industries and other wastewater applications.
Article
Energy & Fuels
Thibaud Hatt, Tobias Morawietz, Jonas Bartsch, Leonard Tutsch, Markus Glatthaar
Summary: This study investigates the factors influencing the masking quality for selective electroplating and analyzes some defects through atomic force microscopy and focused ion beam/scanning electron microscopy. It is found that adsorbing a self-assembled monolayer can improve the quality of the AlOx insulation layer, and the mask quality and complete metallization sequence are demonstrated on industrial solar cell precursors.
Article
Chemistry, Multidisciplinary
Ashu Gupta, Vinod Kumar, Sachin Mittal, Rakesh Kumar Sharma
Summary: A green analytical method was developed to separate trace amounts of lead from aqueous samples using gallic acid-immobilized Amberlite XAD-2. The stability constant of the Pb-GA complex was determined and a chemical speciation diagram was plotted, which indicated strong complexation of Pb(II) with GA. The sorption capacity and concentration factor of modified Amberlite XAD-2 for Pb(II) were found to be 4554 μg/g and 100, respectively.
Article
Chemistry, Analytical
Umit Divrikli, Funda Altun, Abdullah Akdogan, Mustafa Soylak, Latif Elci
Summary: A new microextraction method was developed and validated for the determination of cobalt and copper in environmental samples. The method showed good quantification limits and recovery rates, and has been successfully applied to real samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Mustafa Soylak, Hassan Elzain Hassan Ahmed, Ozgur Ozalp
Summary: A new coprecipitation procedure using 8-hydroxyquinoline and copper (II) for preconcentration-separation and detection of trace propineb was improved. Critical parameters and matrix components were studied to successfully determine propineb in vegetable and fruit samples. The method showed satisfactory results with flame atomic absorption spectrometry.
ANALYTICAL LETTERS
(2023)
Article
Biochemical Research Methods
Edgar Toth, Adam Tolgyesi, Maria Balint, Xingmao Ma, Virender K. Sharma
Summary: A new HPLC method for simultaneous determination of fosetyl and its main metabolite phosphonic acid in food samples was presented in this study. The method achieved baseline separation by optimizing the mobile phase composition and introducing ethylenediaminetetraacetate. The method showed stable retention time and peak resolution without the need for long column priming, conditioning or regeneration, and also demonstrated successful separation of other polar pesticides.
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
(2022)
Article
Chemistry, Analytical
Yuki Yokota, Makoto Gemmei-Ide, Yoshinori Inoue, Shigehiro Kagaya
Summary: An automated system using a chelating resin called CM-PEI600 was developed for rapid separation and preconcentration of trace elements in water samples. The system employed an internal standardization technique for accurate and precise determination of trace elements. Recovery tests on various samples showed good results, and the method was validated by comparing determined values with certified values. The system allowed for simultaneous extraction and elution, making it possible to process multiple samples in a short time.
ANALYTICAL SCIENCES
(2023)
Article
Chemistry, Analytical
Furkan Uzcan, Syed Nasrullah Shah, Mustafa Soylak
Summary: A magnetic dispersive solid phase extraction method using Fe3O4@XAD-8 adsorbent was developed to separate and preconcentrate Pb (II) ions from environmental samples. By optimizing various analytical parameters, this method can accurately determine the lead content in samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Kubra Turan, Rukiye Saygili Canlidinc, Orhan Murat Kalfa
Summary: In this study, preconcentration of trace amounts of copper ions was achieved using a Cu(II)-IAC sorbent and SPE method. The optimized conditions and characterization of the sorbents were studied, with good recoveries obtained for spiked analysis in tap water and certified reference materials. The accuracy and validity of the proposed method were confirmed through comparison with literature data.
TURKISH JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Songul Ulusoy, Ahmet Demirbas, Adil Elik, Nail Altunay, Gokhan Sarp, Erkan Yilmaz, Halil Ibrahim Ulusoy
Summary: A new potential solid phase material, dithizone@PAA, was synthesized and utilized as a versatile polymeric sorbent for the extraction of Mn(II) and Cu(II) ions from vegetables and barbecue samples. The method involved the use of shake-assisted dispersive solid-phase micro-extraction followed by flame atomic absorption spectrometry. The optimized values for the variables resulted in a dynamic linear range of 0.70-150.00 ng mL(-1) for Mn(II) ions and 0.20-125.00 ng mL(-1) for Cu(II) ions, with low limits of detection. The method showed good precision and accuracy when applied to food samples.
Article
Chemistry, Applied
Sefa Yilmaz, Naeem Ullah, Demirhan Citak, Baki Hazer, Mustafa Tuzen
Summary: The goal of this study was to develop an efficient method to extract and pre-concentrate copper and cadmium from food, soft drink, and water samples using Vortex Assisted Dispersive Solid Phase Microextraction (VAdSP-μE) with a magnetic polystyrene-b-poly dimethyl siloxane block copolymer (MPCP). The optimized conditions resulted in a linear range of 2.5-140 μg L-1 and 5.1-100 μg L-1, LOD of 0.8 and 1.7 μg L-1, RSD of 1.1% and 0.7%, and enhancement factors of 50 for Cu and Cd, respectively.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Dilek Kamas, Aslihan Karatepe, Mustafa Soylak
Summary: This study developed a new solid phase extraction method using magnetic multiwalled carbon nanotubes impregnated with PAN for the determination of Pb(II) and Cu(II) ions. The method was optimized and validated, showing good performance in analyzing various plant samples.
TURKISH JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Changkun Liu, Chaojie Cai, Fuqing Ma, Xinzhen Zhao, Hilal Ahmad
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Article
Engineering, Environmental
Hilal Ahmad, Zenan Huang, Palsamy Kanagaraj, Changkun Liu
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Physical
Sakshi Kapoor, Hilal Ahmad, Christian M. Julien, S. S. Islam
APPLIED SURFACE SCIENCE
(2020)
Review
Chemistry, Multidisciplinary
Asim Ali Yaqoob, Hilal Ahmad, Tabassum Parveen, Akil Ahmad, Mohammad Oves, Iqbal M. I. Ismail, Huda A. Qari, Khalid Umar, Mohamad Nasir Mohamad Ibrahim
FRONTIERS IN CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Sakshi Kapoor, Aaruni Jha, Hilal Ahmad, S. S. Islam
Article
Engineering, Chemical
Fuqing Ma, Chaojie Cai, Xinzhen Zhao, Hilal Ahmad, Changkun Liu
Article
Chemistry, Applied
Saman Rais, Aminul Islam, Izhar Ahmad, Suneel Kumar, Anjali Chauhan, Hina Javed
Summary: A new magnetic Cu(II) IIP was synthesized by polymerization of specific functionalized substances, which can efficiently remove Cu(II) and achieve quantitative determination. The optimal parameter design, good model fitting, and excellent analytical properties make this material a promising candidate for applications in food and wastewater.
Article
Thermodynamics
Aminul Islam, Hina Javed, Anjali Chauhan, Izhar Ahmad, Saman Rais
Summary: A hydrophilic sandwich-like graphene oxide ion-imprinted polymer was successfully synthesized for preconcentration of Ni(II), demonstrating good selectivity, high adsorption capacity, and fast chemical kinetics. Compared to the nonimprinted polymer control, the imprinted polymer showed higher recognition ability and regeneration stability.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2021)
Article
Green & Sustainable Science & Technology
Aminul Islam, Anjali Chauhan, Hina Javed, Saman Rais, Izhar Ahmad
Summary: Through the synthesis of magnetic carbon nanotubes-silica composite mCNT@APS, this study achieved excellent adsorption performance for lead, particularly suitable for the removal of Pb(II) from industrial effluents and tap water. The optimized conditions were pH 5.4, feed concentration 757 μg mL(-1) and contact time 4 min, exhibiting high saturation capacity and chemical adsorption characteristics.
CLEAN-SOIL AIR WATER
(2021)
Article
Engineering, Environmental
Hilal Ahmad, Changkun Liu
Summary: The hydrophilicity of the graphene oxide membrane was enhanced through oxygen plasma treatment, which was then used for the preconcentration of heavy metal ions with a good detection limit of 1.2 ng L-1. The method showed good accuracy and precision when assessing standard reference materials.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Aminul Islam, Anjali Chauhan
Summary: A new Cd(II)-imprinting polymer was synthesized and used for the development of a dispersive magnetic solid-phase extraction method for the determination of Cd(II) in environmental samples. The material exhibited promising adsorption capacity and fast kinetics, making it a potential candidate for Cd(II) determination in various samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Polymer Science
Aminul Islam, Hina Javed
Summary: A new tailor-fitted graphene oxide-vinyl pyridine ion-imprinted polymer (mGOVP/IIP) was synthesized and applied for the preconcentration and determination of Cu(II). The material showed high sorption capacity, fast kinetics, and good selectivity and regeneration efficiency.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Aminul Islam, Sana Fatima
Summary: A multifunctional aerogel, Zr-IMDT/rGOA, was synthesized by functionalizing graphene oxide with ZrCl4 and 2-imidazolidinethione. It exhibited excellent removal performance for fluoride ions and anionic dyes. The aerogel showed high selectivity for fluoride ions and could be regenerated for multiple cycles, making it suitable for groundwater and wastewater treatment.
CLEAN-SOIL AIR WATER
(2023)
Article
Chemistry, Multidisciplinary
Aminul Islam, Sana Fatima
Summary: This study focuses on the removal of Cu(II) from aqueous environments due to its potential risks to human health. A magnetic hybrid aerogel (mGO-TETA-MWCNT) was synthesized through self-assembly of magnetic graphene oxide (mGO) and multiwalled carbon-nanotubes (MWCNT) functionalized with triethylenetetramine (TETA) via hydrothermal reduction. The prepared adsorbent showed high adsorption capacity for Cu(II) removal and exhibited good selectivity in the presence of other interfering metal ions. The aerogel can be regenerated for multiple cycles and successfully applied for Cu(II) removal from different water sources.