Article
Spectroscopy
Joanna Dobrzynska, Marzena Dabrowska, Ryszard Dobrowolski, Kinga Morlo
Summary: Pt(IV) ion-imprinted thiocyanato-functionalized SBA-15 material (Pt(IV)S1) was used for preconcentration of Pt(IV) ions from digested geological samples before ETAAS determination. The ion-imprinted material showed high adsorption affinity and selectivity towards Pt(IV) ions. The proposed procedure achieved a high enrichment factor of 38 and a low limit of quantification of 0.079 mg kg-1.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Article
Environmental Sciences
Negar Jamasbi, Ghodsi Mohammadi Ziarani, Fatemeh Mohajer, Mahdieh Darroudi, Alireza Badiei, Rajender S. Varma, Fatemeh Karimi
Summary: This study developed a novel magnetic adsorbent that can efficiently remove toxic metal ions from water environments. The optimal operating conditions were determined through experiments, and it was found that the adsorption data followed the Langmuir isotherm model.
Article
Chemistry, Applied
Joanna Dobrzynska, Rafal Olchowski, Emil Zieba, Ryszard Dobrowolski
Summary: A hybrid Zr/amine-modified mesoporous silica sorbent was proposed for preconcentration of inorganic As from drinking water before FI HG AAS determination. Different sorbents were synthesized and characterized, with SBA/TMPED/Zr-0.5 chosen for its effective adsorption capacity. The method showed good linearity, low detection limits, and high recovery rates for arsenic from water samples.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
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, 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, Applied
Fernanda Garcia de Almeida, Milena do Prado Ferreira, Mariana Gava Segatelli, Alexandra Beal, Wilma Aparecida Spinosa, Fabio Antonio Suquila Cajamarca, Cesar Ricardo Teixeira Tarley
Summary: A solid phase preconcentration method for cobalt determination at trace levels was developed using a cross-linked polymer as an efficient adsorbent, achieving high sensitivity and recoveries ranging from 91-104% in different samples.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
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
Environmental Sciences
Efe Sinan Aydin, Buse Tugba Zaman, Gamze Dalgic Bozyigit, Sezgin Bakirdere
Summary: In this study, the detection sensitivity of a conventional flame atomic absorption spectrophotometer (FAAS) for manganese (Mn2+) determination was enhanced by using a preconcentration method on wastewater samples. The synthesis of flower-shaped Ni(OH)2 nanomaterials as sorbent material in the preconcentration procedure was conducted. By optimizing the extraction method, including pH, desorption solvent concentration and volume, mixing type and period, nanoflower amount, and sample volume, the detection limit of the optimized method was determined to be 2.2 μg L-1, achieving a 41-fold enhancement in detection power compared to direct FAAS measurement. Spike recovery experiments with domestic wastewater confirmed the feasibility of the proposed method, with percent recoveries ranging from 95-120%.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
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
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
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
Chemistry, Analytical
Minoo Barzkar, Alireza Ghiasvand, Mehdi Safdarian
Summary: A new Pb (II) magnetic ion-imprinted polymer (Pb-MIIP) was developed for selective extraction of Pb (II) from water. The MIIP nanostructures were synthesized using iron oxide nanoparticles coated with itaconic acid as a magnetic core, with additional components including a functional monomer, a cross-linker, and an initiator. The synthesis process was confirmed through instrumental and microscopic methods. The Pb (II)-MIIP method exhibited a detection limit of 0.21 μg/L, high recovery (>90%), and low relative standard deviation (<4.9%). The synthesized MIIP showed reusability and successful application in extracting Pb (II) from tap water samples.
Article
Chemistry, Multidisciplinary
Jinshun Cang, Weixi Gu, Yuheng Zhang, Xiashi Zhu
Summary: This study developed a magnetic solid extractant coated with amino acid ionic liquid and graphene oxide for the speciation analysis of Cr(iii) and Cr(vi) in water samples using ICP-OES. The method showed good linear ranges and detection limits under optimal conditions, and its effectiveness was validated through quantitative analysis of environmental water samples. This method reveals promising potential in the field of environmental remediation.
NEW JOURNAL OF 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, 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
Biochemical Research Methods
Ahmad Aqel, Ayman A. Ghfar, Kareem Yusuf, Khalid M. Alotaibi, Rayed M. Alafra'a, Mohamed A. Habila, Ahmed-Yacine Badjah-Hadj-Ahmed, Zeid A. ALOthman
Summary: This study focuses on the preparation of novel and promising stationary phases for capillary liquid and gas chromatography using inorganic-organic composites. By introducing montmorillonite into polymethacrylate monoliths, the columns exhibited excellent separation performance for alkane and alkylbenzene series in gas chromatography and capillary HPLC.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Inorganic & Nuclear
Xin Zhang, Rui-Biao Lin, Zeid A. Alothman, Osamah Alduhaish, Taner Yildirim, Wei Zhou, Jian-Rong Li, Banglin Chen
Summary: This work explores the methan storage and onboard delivery using metal-organic frameworks (MOFs). Utilizing highly porous MOF material, NPF-200, the authors discovered a new benchmark for volumetric and gravimetric working capacity under specific temperature and pressure conditions.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Environmental Sciences
Awais Ahmad, Faisal Ali, Zeid A. ALOthman, Rafael Luque
Summary: The utilization of folic acid as a stabilizing and capping agent allows for the synthesis of bimetallic nanomaterials. In this study, UV light assisted ZnO-Ag nanobars were prepared using folic acid as a stabilizing agent and were found to have a hexagonal structure with a crystallite size of 5.6 nm. These nanobars exhibited efficient catalytic activity, achieving up to 93% reduction of 4-nitrophenol and 90% reduction of Cr+6 in the presence of ascorbic acid.
Article
Materials Science, Multidisciplinary
Thabit Abbas Ahmed, Ahmed Saud Abdulhameed, Shariff Ibrahim, Zeid A. ALOthman, Lee D. Wilson, Ali H. Jawad
Summary: Pyrolysis assisted H3PO4 activation was used to produce activated carbon (AC) from Iraqi reed (IR) biomass waste. After activation, the BET surface area of IR increased significantly from 0.5542 m2/g to 1045.18 m2/g for IRAC. The study focused on the adsorption of anionic surfactant (SDBS) by IRAC.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Engineering, Chemical
Faisal Ali, Saira Mehmood, Adnan Ashraf, Aimon Saleem, Umer Younas, Awais Ahmad, Muhammad Pervaiz Bhatti, Gaber E. Eldesoky, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Awais Bokhari, Muhammad Mubashir, Lai Fatt Chuah, Jun Wei Roy Chong, Pau Loke Show
Summary: Remediation of industrial water pollution is an important issue due to its harmful effects. Azo dyes are the major pollutants, while anthraquinone dyes pose a greater threat. This study focuses on the reduction synthesis of Ag-Cu bimetallic nanoparticles for the degradation of dyes. The nanocatalyst showed high degradation efficiency for multiple dyes in industrial effluent.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Environmental Sciences
Abdallah Reghioua, Ali H. Jawad, Rangabhashiyam Selvasembian, Zeid A. ALOthman, Lee D. Wilson
Summary: This research work successfully converted pomegranate peel into microporous activated carbon using a microwave assisted K2CO3 activation process. The activated carbon showed excellent performance in removing methylene blue dye. This study has significance in terms of waste biomass utilization and water pollutant sequestration.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Food Science & Technology
Sharmila Battira Madappa, Jamballi Gangadarappa Gowda Manjunatha, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Mika Sillanpaa
Summary: An electropolymerized niacin modified carbon paste electrode was developed for the cyclic voltammetric analysis of indigo carmine. The electrode showed good sensitivity and selectivity towards indigo carmine, making it suitable for the detection of indigo carmine in food and water samples.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Engineering, Chemical
Mohamed A. A. Habila, Zeid A. A. ALOthman, Hussam Musaad Hakami, Abdullah German Alanazi
Summary: Wastewater treatment for heavy metal removal can reduce environmental contamination and enhance sustainable practices. This study investigates the development of carbon nanotube/SDS-alumina nanocomposite-based adsorbents for efficient wastewater treatment under low temperature conditions. The heating condition was found to be the controlling factor for the formation of the porous structure of the nanocomposite, which affects its effectiveness in wastewater treatment.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Biochemical Research Methods
Kareem Yusuf, Osama Shekhah, Seetah Alharbi, Asma A. Alothman, Ali S. Alghamdi, Reem M. Aljohani, Zeid A. Alothman, Mohamed Eddaoudi
Summary: In this study, a preconcentration technique using divinylbenzene monolithic polymer and zeolite-like metal-organic frameworks (ZMOFs) was developed for explosive markers. Incorporating ZMOFs into the polymer increased the percentage of micropores and improved the adsorption performance. This research provides an initial step towards the development of a portable explosive detector or a trace preconcentrator for explosive markers.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Retraction
Engineering, Chemical
Shweta Sharma, Gaurav Sharma, Amit Kumar, Pooja Dhiman, Tahani Saad AlGarni, Mu. Naushad, Zeid A. ALOthman, Florian J. Stadler
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Ahmed Mohamed El-Toni, Mohamed A. Habila, Mohamed Sheikh, Mohamed El-Mahrouky, Abdulrhman S. Al-Awadi, Joselito P. Labis, Zeid A. Alothman
Summary: Fe3O4 core-TiO2/mesoSiO(2) and Fe3O4 core-mesoSiO(2)/TiO2 double shell nanoparticles were prepared and used for the removal of methylene blue. The adsorption capacities and kinetics followed the pseudo-second order model, and the adsorption isotherms followed the Freundlich model. The thermodynamic investigation indicated a spontaneous tendency for the adsorption process. The results highlight the potential of these double shell nanoparticles as adsorbents for the removal of various contaminants from wastewater.
Article
Chemistry, Analytical
Ali S. Alghamdi, Kareem Yusuf, Mohamed A. Habila, Zeid A. Alothman
Summary: The Schiff bases reaction is utilized for the formation of various functioned carbon structures using renewable carbon sources from waste. The formed functioned carbons are characterized and evaluated for their morphology, structure, porosity, and surface functional groups. Chromatographic-based thermodynamic analysis is applied to assess the separation efficiency of hydrocarbon mixtures. Results showed the successful formation of functional carbon structures with different shapes and abundant surface functional groups, exhibiting efficient separation of hydrocarbon mixtures.
Article
Chemistry, Multidisciplinary
Musa Khan, Faiz Ali, Saba Ramzan, Zeid. A. A. AlOthman
Summary: This study utilized sophisticatedly altered Hummers and sol-gel procedures to synthesize graphene oxides and porous silica monolith particles. A Fischer esterification protocol was used to couple silica monoliths with graphene oxides. A N-phenyl acrylamide-incorporated porous polymer was then synthesized on the composite surface. The resulting polymer-bound composite effectively removed Cr(vi) and Cr(iii) from wastewater, with optimized parameters. The adsorption data followed the pseudo 2nd-order kinetic model and was best fit by the Langmuir adsorption isotherm (Cr(vi)) and the Freundlich model (Cr(iii)).
Article
Ecology
Sana Khalid, Muhammad Shahid, Zeid A. A. Alothman, Abdullah A. A. Al-Kahtani, Behzad Murtaza, Camille Dumat
Summary: Soil processes greatly influence the chemical speciation and biogeochemical activity of metals. This study predicted chemical speciation of eight metals in two soil layers. Divalent forms of metals were dominant in both layers (79.9%). Chromium showed a different chemical speciation pattern (95.8% as CrOH+) compared to other metals.
SOIL ECOLOGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Mohamed A. Habila, Mohamed Sheikh Moshab, Ahmed Mohamed El-Toni, Abdulrhman S. Al-Awadi, Zeid A. ALOthman
Summary: The development of a sustainable adsorbent for heavy metal ion remediation is studied in this research. The adsorbent is fabricated by modifying Fe3O4 magnetic nanoparticles with organosilica. The adsorption kinetic model shows fast uptake of heavy metals, and the Freundlich isotherm model is suitable for describing the uptake process. The adsorbent also exhibits high recyclability with a reusable efficiency of 91% up to the seventh cycle, making it promising for environmental sustainability.
