Article
Biochemistry & Molecular Biology
Yan Li, Ying Dai, Qinqin Tao, Zhi Gao, Lei Xu
Summary: In this study, amino acids-modified magnetic chitosan adsorbents were successfully used for the removal of uranium from wastewater, showing high adsorption capacity and efficient solid-liquid separation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Analytical
Lin Cheng, Wenzheng Cui, Zhongpin Cheng, Youqun Wang, Lin Xu, Zhibin Zhang, Lei Chen, Qie Luo, Xiaohong Cao, Yunhai Liu
Summary: In this study, a magnetic amorphous titanium phosphate material was successfully synthesized and evaluated for U(VI) removal through adsorption. The experimental results showed that the material had a high adsorption capacity for U(VI) under optimal x and T conditions, and the adsorption process followed a pseudo-second order kinetic model.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Engineering, Environmental
Yanbing Sun, Haoyan Zhang, Nan Yuan, Yulin Ge, Ying Dai, Zhen Yang, Liang Lu
Summary: The use of activated orange peel as a precursor for HLPC-PO4 material synthesis resulted in a highly efficient adsorbent for the removal of U(VI) in radioactive wastewater. The material showed strong adsorption capacity and selectivity for U(VI), with a high retention of adsorption capacity even after multiple cycles. The adsorption mechanism was explained as the formation of complexes between U(VI) and P-O and P-O on the surface of the adsorbent.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Applied
Mojtaba Safaviyan, Mehdi Faramarzi, Seyed Aboutaleb Mousavi Parsa, Hajir Karimi
Summary: In this study, a novel Cr(VI) adsorbent, TEPA-enriched MGO, was developed and characterized. The optimal parameters for Cr(VI) sorption, including Cr(VI)/MGOT ratio, temperature, and pH, were determined through Box-Behnken Design. The maximum adsorption capacity was found to be 287.15 mg/g. The Lagergren kinetic and Langmuir isotherm models accurately represented the adsorption process on MGOT. Based on the obtained results, MGOT was identified as an excellent reusable adsorbent for selective Cr(VI) sorption and magnetic separation from wastewater.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Chemical
Zhongran Dai, Shang Zhao, Junjie Lian, Le Li, Dexin Ding
Summary: In this study, carbon dots modified porous graphitic carbon nitride (CNCD-2) was fabricated and used for efficient photoreduction of U(VI) in radioactive wastewater under visible LED light irradiation. The results showed that CNCD-2 exhibited high removal rate and selectivity for U(VI), making it a promising material for the remediation of uranium-containing wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yanbing Sun, Yuanyuan Wei, Jiaying Pei, Huarui Nan, Youqun Wang, Xiaohong Cao, Yunhai Liu
Summary: By phosphorylation modification, ZrO2@PCs-PO4 with high monolayer adsorption capacity for U(VI) ions was successfully prepared, showing potential for efficient removal of U(VI) from contaminated water. The surface morphology and structure of the material were characterized, and adsorption mechanism was explored through adsorption isotherms and kinetics studies.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Engineering, Chemical
Jianfeng Zhang, De Wang, Ruya Cao, Jiaxing Li
Summary: A novel nanosphere composed of a magnetic h-Fe3O4 core and a phos-LDH shell was synthesized for the removal of uranium (VI). The nanocomposite exhibited rich phosphate groups and a large specific surface area, demonstrating excellent adsorption capacity under certain conditions. Furthermore, the use of an electromagnetic separation system assisted in the successful removal of U(VI) from soil.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Carolina Constantin, Ioana-Carmen Popescu, Ovidiu Oprea, Ligia Stoica
Summary: The discharge of uranium-contaminated water is a concern for both the environment and health. This study investigated the use of Sorption/Flotation technique to remove U(VI) from diluted aqueous systems. The optimal parameters and high removal efficiency were determined through experiments.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Xing Zhong, Nan Lv, Shunhai Yang, Qiaozhulin Yuan, Yongchuan Wu, Kai Guo, Caixia Hu, Ying Dai
Summary: A new polyethyleneimine-functionalized beta-cyclodextrin porous polymer (PEI-PCDP) was successfully synthesized for the efficient elimination of uranium (U(VI)) from nuclear wastewater. The PEI-PCDP showed a high adsorption quantity and rapid adsorption rate, along with good regeneration ability. Thus, PEI-PCDP has potential application prospects in radioactive wastewater treatment.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Environmental Sciences
Qie Luo, Wenzheng Cui, Huan Wang, Bo Xiao, Lei Chen, Youqun Wang, Zhibin Zhang, Yunhai Liu, Xiaohong Cao
Summary: This study prepared magnetic Zr(IV)-ethylenediamine tetramethylene phosphonic acid (EDTMPA) hybrids for the capture of U(VI) from aqueous solutions. The influences of pH, adsorption period, initial concentration, and temperature were investigated, and the desorption and reusability of the materials were explored. The experiment demonstrated that MZrOP-0.2-100 is a potentially effective material for removing U(VI) from radioactive solutions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Xin Cao, Kaifu Yu, Yang Zhang, Nan Li, Peng Wang, Li Zhou, Xiang Gong, Hongbin Wang, Fan Yang, Wenkun Zhu, Rong He
Summary: This study successfully developed a UiO-66-based photocatalyst, MnOx/NH2-UiO-66, which achieves efficient U(VI) removal without sacrificial agents. The amino groups serve as U(VI) confinement sites, while MnOx nanoparticles separate the photogenerated electron-hole pairs and provide water oxidation sites, jointly promoting the U(VI) photoreduction performance of MnOx/NH2-UiO-66.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Bin Zhao, Liyong Yuan, Yue Wang, Tao Duan, Weiqun Shi
Summary: This study reports UiO-66 and its functional derivatives UiO-66-COOH and UiO-66-2COOH as efficient adsorbents for U(VI) and Eu(III) removal, with the introduction of carboxyl groups greatly improving the adsorption performance at low pH.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Kegang Wei, Qingliang Wang, Chin-Pao Huang
Summary: Amino-functionalized porous silica was studied as an adsorbent for U(VI) and its adsorption mechanism was investigated. Different porous silica materials with varied surface areas and average pore sizes were synthesized and modified with AEPTES. The adsorbents were thoroughly characterized and the adsorption energy was estimated. It was found that both coulombic energy and chemical energy contributed significantly to the adsorption energy, and AE@MPS had the lowest surface activate site density at a pore size of 4.1 nm.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Crystallography
Xing Zhong, Nan Lv, Meicheng Zhang, Yubin Tan, Qiaozhulin Yuan, Caixia Hu, Mingyang Ma, Yongchuan Wu, Jinbo Ouyang
Summary: In this manuscript, a new magnetic porous beta-cyclodextrin polymer nanoparticle (CA-PCDP@MNPs) was developed for efficient removal of radioactive uranium (U(VI)) from water. The CA-PCDP@MNPs showed a well-developed porous structure, high specific surface area, and abundant oxygen-containing functional groups, providing sufficient active sites for chelating uranyl ions. The CA-PCDP@MNPs also exhibited fast response magnetic recovery ability and excellent regeneration and recycling ability. These findings suggest that the CA-PCDP@MNPs have great potential in practical applications for nuclear wastewater treatment.
Article
Engineering, Chemical
Changkun Ding, Man Xue, Yuxin Zhang, Jieliang Su, Hua Wang
Summary: Developing a novel chitosan porous microsphere with outstanding adsorption performance and magnetic separation function is significant for recycling and purification in wastewater treatment applications. Magnetic chitosan/GO@Fe3O4 porous microspheres (MCMS) were fabricated by incorporating magnetic graphene oxide nanocomposite (MGN), which significantly improved the adsorption performance of MCMS microspheres. MCMS showed excellent magnetic separation performance and enhanced thermal stability.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Multidisciplinary
Khursheed Muhammad, T. Hayat, Alsaedi
Summary: This study focuses on mathematical modeling and analysis of mixed convection nanofluids flow around a stretching cylinder, with carbon nanotubes dispersed in water-based liquid as nanomaterial. The results show that fluid velocity increases with the rise in certain parameters, while temperature of the fluid varies with different parameters.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Review
Environmental Sciences
De Wang, Jianfeng Zhang, Ruya Cao, Yingzi Zhang, Jiaxing Li
Summary: This review provides a comprehensive overview of analytical methods for studying the interaction between graphene oxide (GO) and natural colloids, highlighting the influence of relevant environmental factors.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Mathematics
Ahmed Alsaedi, Bashir Ahmad, Mokhtar Kirane, Abderrazak Nabti
Summary: In this paper, a nonexistence result is proved for the higher-order nonlinear Schrodinger equation. The upper bound of the lifespan of solutions and the necessary conditions for the existence of local or global solutions are obtained. Moreover, the results are extended to a 2 x 2 system.
BOLETIM SOCIEDADE PARANAENSE DE MATEMATICA
(2022)
Article
Mathematics
Amar Nath Chatterjee, Fahad Al Basir, Bashir Ahmad, Ahmed Alsaedi
Summary: This article presents a method for analyzing the transmission of COVID-19 using mathematical modeling, considering fear effects and vaccination. They identify this type of disease transmission using fractional order differential operator and conduct mathematical analysis and numerical simulation. The results show that fear effects and reducing the fractional order parameter can reduce the number of infections.
Article
Computer Science, Artificial Intelligence
Fuad E. Alsaadi, Zidong Wang, Njud S. Alharbi, Yurong Liu, Naif D. Alotaibi
Summary: This paper develops a general framework of user-based collaborative filtering with a new p-moment-based similarity measure, which analyzes individual rating data to improve the performance of the CF algorithm. The proposed similarity measure with optimized weights provides more accurate user-based rating prediction.
KNOWLEDGE-BASED SYSTEMS
(2022)
Article
Mathematics
Ahmed Alsaedi, Mokhtar Kirane, Ahmad Z. Fino, Bashir Ahmad
Summary: By using the nonlinear capacity method, some results are obtained regarding the nonexistence of nontrivial solutions to time and space fractional differential evolution equations with transformed space argument. These results are then applied to a 2 x 2 system of equations with transformed space arguments.
BULLETIN OF MATHEMATICAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Njud S. Alharbi, Nehad S. Alsubhi, Afnan Felimban
Summary: Nanotechnology has brought a significant revolution in various scientific fields, and this review article focuses on the green synthesis of silver nanoparticles (AgNPs) using medicinal plant extracts. Green synthesized AgNPs offer numerous advantages and have promising applications in the treatment of bacteria, fungi, and tumors.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2022)
Article
Multidisciplinary Sciences
Njud S. Alharbi, Nehad S. Alsubhi
Summary: In this study, silver nanoparticles (AgNPs) were biologically synthesized using the fruit extract of Azadirachta indica. The synthesized AgNPs showed high toxicity against A549 lung cancer cells and had a desirable morphology and high yield, making them suitable for various medicinal applications.
JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES
(2022)
Article
Materials Science, Biomaterials
Afnan Felimban, Njud S. Alharbi, Nehad S. Alsubhi
Summary: Green synthesis of silver nanoparticles using Olea europaea extracts and sunlight shows significant anticancer activity, demonstrating potential for disease treatment and pathogen control.
INTERNATIONAL JOURNAL OF BIOMATERIALS
(2022)
Article
Chemistry, Physical
Yuan He, Chengwei Sun, Njud S. Alharbi, Shubin Yang, Changlun Chen
Summary: Recently, two-step water electrolysis has been proposed as a solution to the H2/O2 mixture problems in conventional alkaline water electrolysis. However, the low buffering capacity of pure nickel hydroxide electrode limits its practical application. A high-capacity redox mediator (RM) called NiCo-LDH/ACC is synthesized to allow consecutive operation and high-efficiency hydrogen evolution in two-step water electrolysis. The NiCo-LDH/ACC electrode combines the advantages of high-capacity Ni(OH)2/ACC and high-conductivity Co(OH)2/ACC and shows promising results in terms of specific capacitance and buffering capacity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
De Wang, Jianfeng Zhang, Jiaxing Li
Summary: In this study, a phosphate-functionalized magnetic calcium alginate hydrogel was successfully synthesized, showing high adsorption capacity for uranium contaminants. The study also validates a promising green engineering soil remediation technology that effectively removes radioactive substances from soil.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Automation & Control Systems
Ahmed Alsaedi, Jinde Cao, Bashir Ahmad, Ahmed Alshehri, Xuegang Tan
Summary: This article proposes a distributed adaptive control scheme for second-order leader-following multiagent systems with only position information as output. An auxiliary network is used to estimate unmeasurable velocity information and make the output-based distributed adaptive control protocol effective. The distributed synchronization criteria are established, and the convergence analysis is provided based on the stability theory. Several simulation examples are presented to validate the proposed criteria.
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Sohail A. Khan, T. Hayat, A. Alsaedi
Summary: In this study, the magnetohydrodynamic bioconvective flow of a non-Newtonian nanomaterial over a stretched sheet is analyzed. The convective conditions and irreversibility analysis in the presence of gyrotactic micro-organisms are discussed. Energy expressions considering thermal radiation, heat generation, and ohmic heating are used. By employing Buongiorno's model, the characteristics of the nanoliquid through thermophoresis and random diffusions are studied. Nonlinear expressions of the model are transformed through adequate transformations and computed using the Newton built in-shooting technique. Graphical studies are conducted on influential variables for velocity, concentration, microorganism field, temperature, and entropy rate. Significant findings include velocity reduction with bioconvection Rayleigh number and magnetic variable, temperature augmentation with higher heat generation variable, and entropy and temperature enhancement with increased magnetic variable.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Aneeta Razaq, Tasawar Hayat, Sohail A. Khan, Ahmed Alsaedi
Summary: This study investigates the hydromagnetic entropy optimized flow of a hybrid nanoliquid (Pb + Fe2O3/C2H6O2) on a curved stretchable surface. The Darcy-Forchheimer model is used for the porous space, with lead (Pb) and ferric oxide (Fe2O3) as the nanoparticles and ethylene glycol (C2H6O2) as the base liquid. The effects of various variables on velocity, thermal field, and entropy are analyzed. The results show that an increase in thermal relaxation time enhances heat transport rate and temperature, while an increase in the magnetic variable intensifies entropy and thermal field.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Sohail A. Khan, T. Hayat, A. Alsaedi
Summary: In this study, the magnetohydrodynamic bioconvective flow of a non-Newtonian nanomaterial over a stretched sheet is examined. The convective conditions and the effects of gyrotactic micro-organisms are analyzed. The obtained results show that the velocity decreases with the bioconvection Rayleigh number and magnetic variable, while the temperature and entropy increase with higher heat generation and magnetic variable. The concentration in the microorganism field decreases with a higher Peclet number, and the temperature distribution increases with radiation and solutal Biot number. The entropy rate increases with radiation and diffusion variables.
NANOSCALE ADVANCES
(2023)
Article
Engineering, Chemical
Xu Yang, Jieshi Xiao, Jian Huang, Kaixiang Peng
Summary: This study introduces an online convolutional adversarial autoencoder (AAE) model to learn representative industrial process information. By extracting features that reflect diverse information and follow a Gaussian distribution, the model improves the accuracy of fault detection and removes redundant information through a feature selection strategy.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
Article
Engineering, Chemical
Shao-Yang Wu, Meng-Tsun Lai, Chung-Hui Hsu, Kevin C. W. Wu, Yesong Gu
Summary: This study investigated the effectiveness of using Fe-based MOF or MIL-100(Fe) in conjunction with a PEDOT-modified Pt electrode for detecting the synthetic azo dye tartrazine. By modifying the electrode with two different methods, favorable lower reductive potentials, competitive sensitivities, and good repeatability and stability were achieved in all MIL-100(Fe)/PEDOT/Pt electrodes.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2024)
