Article
Environmental Sciences
Ruohan Zhao, Bing Wang, Pan Wu, Qianwei Feng, Miao Chen, Xueyang Zhang, Shengsen Wang
Summary: Heavy metals pollution in water caused by industrial processes and human activities has become a global concern, highlighting the need for an environmentally friendly and efficient remediation method. In this study, a calcium alginate-nZVI-biochar composite (CANRC) was prepared using calcium alginate entrapment and liquid-phase reduction method to remove Pb2+, Zn2+, and Cd2+ from water. The effects of various factors on the adsorption process were investigated, and the physicochemical properties of CANRC before and after adsorption were characterized using SEM-EDS, XRD, and XPS. Different adsorption models and site energy analysis were used to understand the mechanisms involved. The results showed that CANRC prepared at 300°C and a 5 wt% Fe loading ratio exhibited the highest adsorption capacities for Pb2+, Zn2+, and Cd2+, with surface complexation and precipitation identified as the main adsorption mechanisms. This study provides an alternative approach for the removal of heavy metals from water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Peng Zhang, Kui Zou, Li Yuan, Jing Liu, Bingzhi Liu, Tai-Ping Qing, Bo Feng
Summary: Alginate-based hydrogel adsorbents were developed for efficient removal of heavy metals from wastewater. The hydrogel beads prepared by blending bacterial alginate, polyvinyl alcohol, and chitosan exhibited excellent adsorption performance for Pb(II), Cd(II), and Cu(II). The addition of chitosan greatly improved the specific adsorption capacity for Cr(VI), and the hydrogels maintained a high adsorption capacity for heavy metals even after multiple cycles.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Tianzhu Shi, Zhengfeng Xie, Xinliang Mo, Yulong Feng, Tao Peng, Dandan Song
Summary: In this study, functionalized sodium alginate hydrogel (FSAH) was prepared for efficient adsorption of heavy metals and dyes. The results showed that FSAH mainly adsorbed heavy metals through physical adsorption, and cationic dyes through hydrogen bonds, electrostatic interactions, and pi-pi interactions. Additionally, FSAH exhibited good adsorption cycle stability.
Article
Engineering, Environmental
Shella Permatasari Santoso, Alfin Kurniawan, Artik Elisa Angkawijaya, Hardy Shuwanto, I. D. A. A. Warmadewanthi, Chang -Wei Hsieh, Hsien-Yi Hsu, Felycia Edi Soetaredjo, Suryadi Ismadji, Kuan-Chen Cheng
Summary: This study presents a facile and low-cost approach to fabricate porous calcium alginate composite sponges containing exfoliated bentonite clay for efficient removal of Cu2+ and Cr6+ ions from water. The CRAB sponges exhibited meso- and macropores and showed an endothermic adsorption process. The results demonstrated the potential of CRAB sponges for remediation of water polluted with copper and hexavalent chromium ions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Juan Taumaturgo Medina-Collana, Wilfredo David Sejje Suarez, Noemi Anyosa Caceres, Luis Americo Carrasco Venegas, Pablo Belizario Diaz Bravo, Jorge Amador Lopez Herrera, Juan Herber Grados Gamarra, Jacob Astocondor Villar
Summary: In this study, a calcium alginate bead adsorbent was prepared from brown algae (Macrosystis pyrifera) and used for removing Pb+2, Cu+2, and Sb+3 ions from aqueous solutions. The factors affecting the adsorption process were examined, and the adsorption kinetics and isotherms were studied. The results showed that the calcium alginate beads had good adsorption capacity for Pb2+, Cu2+, and Sb3+, with Langmuir and Freundlich isotherms fitting well. The bioadsorption equipment achieved concentration values of lead and copper ions below the current environmental regulations.
Article
Materials Science, Multidisciplinary
Nehapadma Mohanty, Braja N. Patra
Summary: In this study, the polypyrrole-sodium alginate (Ppy-SA) nanocomposite was successfully fabricated and characterized for adsorption of organic dyes and heavy metals from wastewater. The results showed that the Ppy-SA nanocomposite exhibited high adsorption capacities for methylene blue, methyl orange, chromium (VI), and mercury (II), surpassing other reported polymer-based adsorbents.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Shuangli Li, Shiqi Li, Nuan Wen, Dong Wei, Yongfang Zhang
Summary: The bifunctionalized magnetic mesoporous silica material, NZVI-SH-HMS, successfully synthesized with thiol and nanometer zero-valent iron was effective in removing lead and cadmium ions from aqueous solution. The material demonstrated good porous properties, high adsorption capacity, and excellent adsorption performance in different simulated wastewater, indicating promising capabilities for heavy metal ion removal in actual water environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Ashraf Ali, Sarah Alharthi, Bashir Ahmad, Alia Naz, Idrees Khan, Fazal Mabood
Summary: Chemically modified silica monolith particles were prepared for the adsorptive removal of lead (II) ions from aqueous medium. The adsorbent showed an adsorption capacity of 792 mg/g for Pb(II) ions, with a 98% adsorption rate under optimal conditions of pH 5, 0.4 g/L adsorbent dose, 500 mg/L Pb(II) ion concentration, and 1 hour adsorption time. The adsorption data fitted well with Freundlich and Langmuir isotherm models, and the adsorption process followed a pseudo second-order kinetic model, suggesting spontaneous and exothermic adsorption.
Article
Biochemistry & Molecular Biology
Rafik Saddik, Imad Hammoudan, Said Tighadouini, Othmane Roby, Smaail Radi, Maha Al-Zaben, Abir Ben Bacha, Vijay H. Masand, Zainab M. Almarhoon
Summary: In this study, a highly efficient and selective silica-based adsorbent was developed for the removal of Cu(II) ions from aqueous solutions. The adsorbent showed excellent selectivity and high adsorption capacity, outperforming other similar adsorbents currently published. The adsorption mechanism, thermodynamics, reusability, and the effects of various experimental conditions were investigated. Theoretical studies were also conducted to understand the adsorption mechanism and the nature of the bonds formed.
Article
Multidisciplinary Sciences
Azam Marjani, Reza Khan Mohammadi
Summary: In this study, tetrasulfide-functionalized fibrous silica material was synthesized for the first time to adsorb toxic heavy metal Hg(II) from aqueous solution. The experiment results showed promising adsorption performance of the material towards Hg(II) in batch system, providing a potential nano-porous material option for remediation of heavy metal pollution.
SCIENTIFIC REPORTS
(2021)
Review
Environmental Sciences
Manikka Kubendran Aravind, Nagamalai Sakthi Vignesh, Santhalingam Gayathri, Nair Anjitha, Kottilinkal Manniath Athira, Sathaiah Gunaseelan, Malaisamy Arunkumar, Ashokkumar Sanjaykumar, Sankar Karthikumar, Innasi Muthu Ganesh Moorthy, Balasubramaniem Ashokkumar, Arivalagan Pugazhendhi, Perumal Varalakshmi
Summary: Phycoremediation of heavy metals has gained significant attention as an emerging practice for metal removal in diverse environmental matrices. However, the complex and haphazard physicochemical state of metal polluted sites due to irregular waste discharge poses challenges for the application of microalgae in metal bioremediation. This review focuses on evaluating existing microalgal strategies for metal removal through various processes and provides insights for choosing efficient metal remediation tactics based on the polluted environment. Additionally, the adsorption mechanism of microalgae for metal removal is investigated using principal component analysis with different metals and factors. The review comprehensively discusses suitable strategies for different heavy metal removal and addresses complications and solutions in microalgal metal removal mechanisms.
Article
Environmental Sciences
Esmaeil Allahkarami, Ebrahim Allahkarami, Amirreza Azadmehr
Summary: The main aim of this research is to synthesize a schist/alginate composite adsorbent for the removal of heavy metals from waste streams. The developed adsorbent shows good adsorption capacity, kinetic fit, and thermodynamic properties. The reusability of the adsorbent is also satisfactory, making it a commercially attractive and green method.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Anna Marszalek
Summary: Contamination of water bodies with toxic heavy metals is a significant problem worldwide, and this study presents a novel approach using alginate capsules for the removal of copper and lead, demonstrating high removal efficiency.
DESALINATION AND WATER TREATMENT
(2022)
Article
Polymer Science
Eva Oktavia Ningrum, Takehiko Gotoh, Wirawan Ciptonugroho, Achmad Dwitama Karisma, Elly Agustiani, Zela Marni Safitri, Muhammad Asyam Dzaky
Summary: Zwitterionic betaine polymers show potential as adsorbents for heavy metal ion removal, but intra- and/or inter-chain interactions can reduce their efficiency. Copolymerization of NIPAAM and DMAAPS was found to increase ion adsorption and weaken interactions between charged groups.
Article
Environmental Sciences
Yuchen Wang, Ang Li, Binqiao Ren, Zijian Han, Junhao Lin, Qiwei Zhang, Tingting Cao, Chongwei Cui
Summary: Alginates were used to enhance electrokinetic technology to remediate soil contaminated with divalent heavy metals in this study. The results showed that alginate could increase soil conductivity and promote the removal efficiency of metal ions, particularly Cu and Zn. However, excessive alginate dosage may reduce metal removal efficiency. The migration of heavy metal ions in the electric field was influenced by the dosage of alginate.
ENVIRONMENTAL POLLUTION
(2022)
Article
Materials Science, Multidisciplinary
Ahmet Senocak, Ecem Korkmaz, Alireza Khataee, Erhan Demirbas
Summary: This study investigated the sensor characteristics of Ce and Cr containing iron oxide reduced graphene oxide nanocomposites for rutin antioxidant detection. Fe2.5Cr0.2Ce0.3O4-rGO nanocomposite showed better sensor features with a detection limit of 52 nM, demonstrating improved sensor performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Biochemistry & Molecular Biology
Roghayeh Jalili, Salimeh Chenaghlou, Alireza Khataee, Balal Khalilzadeh, Mohammad-Reza Rashidi
Summary: This study reports an electrochemiluminescence (ECL) immunosensor for Tau protein in serum samples. Gold nanostars (AuNSs) decorated on carbon nitride nanosheets (AuNS@g-CN nanostructure) showed highly strong and stable ECL activity compared to pristine CN nanosheets. By functionalizing the immobilized AuNSs, the immunosensor successfully detected the Tau biomarker in serum samples.
Review
Environmental Sciences
Yasser Vasseghian, Monireh Alimohamadi, Alireza Khataee, Elena-Niculina Dragoi
Summary: Organophosphate esters (OPEs) are commonly used as additives in various industries, and they can have long-lasting adverse effects on the environment due to their inability to chemically bond with materials. A meta-analysis of 58 articles containing 2676 samples from 10 countries revealed that China had the highest concentration of OPEs in water resources, with over 715 μg/L for certain OPEs. Monte-Carlo simulations showed that despite concentrations being within acceptable limits, 95% of the population may still be at risk.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Reza Darvishi Cheshmeh Soltani, Elham Abolhasani, Masoumeh Mashayekhi, Najla Jorfi, Grzegorz Boczkaj, Alireza Khataee
Summary: In this study, a binary heterojunction nanocomposite of g-C3N4 and ZnFe LDH was used as a catalyst for the decomposition of tetracycline antibiotic using Oxone and UV light irradiation. The combination of g-C3N4 and ZnFe LDH showed enhanced degradation of TC, especially when ultrasound was applied. The analysis of total organic carbon (TOC) and bioassays confirmed the progress in pollutant mineralization and the decreased toxicity after treatment, respectively.
Article
Environmental Sciences
Ali Reza Amani-Ghadim, Samira Arefi-Oskoui, Robab Mahmoudi, Abdolreza Tarighati Sareshkeh, Alireza Khataee, Fatemeh Khodam, Mir Saeed Seyed Dorraji
Summary: Inserting Gd ions into the crystalline lattice of ZnS quantum dots (QDs) enhanced their photo-catalytic activity. The influence of graphene oxide (GO) and graphitic carbon nitride (g-C3N4) on the photocatalytic activity of the ZnS QDs was also investigated. The results showed that the presence of Gd-doped ZnS QDs/g-C3N4 nanocomposite achieved the highest photocatalytic degradation efficiency and total organic carbon removal.
Article
Environmental Sciences
Samaneh Rashtbari, Gholamreza Dehghan, Mojtaba Amini, Sirous Khorram, Alireza Khataee
Summary: In this study, MoO3 nanoparticles were synthesized and modified using Argon cold plasma treatment for the first time. The enzyme-mimic activity of the modified nanoparticles increased by 1.5 fold, and a sensitive fluorometric method for the detection of polyphenols was developed.
Article
Energy & Fuels
Zahra Taherian, Vahid Shahed Gharahshiran, Alireza Khataee, Yasin Orooji
Summary: The study utilized freeze-dried promoted-Ni/MgAl catalysts to address catalyst deactivation by coking in methane dry reforming. By enhancing the basicity of the catalyst, the promotion led to higher activity and stability of the catalyst in conversion of methane, with the Sr-promoted Ni/MgAl catalyst demonstrating the best performance.
Article
Engineering, Chemical
Mina Mohammadzadeh, Siamak Pakdel, Jafar Azamat, Hamid Erfan-Niya, Alireza Khataee
Summary: In this study, the performance of a pure silica PWN-type zeolite membrane in the separation of N2 and CO2 gas molecules was investigated using molecular dynamics simulations. The results showed that the Si-PWN membrane exhibited high selectivity for N2 over CO2.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Zahra Taherian, Alireza Khataee, Ning Han, Yasin Orooji
Summary: The performance of catalysts for hydrogen production depends on the selection of active metals, supports, and promoters. Nickel catalysts are a strong and cost-effective option. Mesoporous supports can enhance catalyst stability and suppress carbon deposition.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Applied
Basak Keskin, Seyed Ali Naziri Mehrabani, Samira Arefi-Oskoui, Vahid Vatanpour, Oguz Orhun Teber, Alireza Khataee, Yasin Orooji, Ismail Koyuncu
Summary: This study investigates the performance improvement of cellulose acetate (CA) membranes using Ti2AlN MAX phase as an inorganic additive. The results demonstrate the high potential of MAX phase-based materials in enhancing the performance of polymeric membranes.
CARBOHYDRATE POLYMERS
(2022)
Article
Environmental Sciences
Tingting Luo, Runkai Wang, Fei Chai, Lei Jiang, Pinhua Rao, Lili Yan, Xinjian Hu, Wei Zhang, Lianghuan Wei, Alireza Khataee, Ning Han
Summary: A new adsorbent (CNC-Mn-PEI) was successfully fabricated by introducing manganese as a bridge joint for the removal of As (III) from waste water. The incompact CNC and PEI were successfully connected by Mn ions, forming O-Mn-O bonds, and maintaining high removal efficiency in a wide pH range.
Article
Environmental Sciences
Fatma Ece Sayin, Okan Karatas, Ismail Ozbay, Erhan Gengec, Alireza Khataee
Summary: This study examined the efficiencies of coagulation, Fenton, and photo-Fenton procedures, and their combinations in the treatment of printing and packaging process wastewater (PPPW). The results showed that the combined coagulation and Fenton process is an important treatment alternative for reducing COD and TOC levels, meeting the wastewater discharge standards. The addition of UV sources to the Fenton process showed only a slight improvement in removal efficiency.
Article
Engineering, Environmental
Mahdie Safarpour, Saeed Najjarizad-Peyvasti, Alireza Khataee, Atefeh Karimi
Summary: The hydrophilic CeO2/GO nanocomposite was successfully synthesized and characterized, and its modification effect on polyethersulfone (PES) membranes was investigated. The modified membranes showed improved hydrophilicity, porosity, pure water permeation, fouling resistance, and dye removal efficiency compared to unmodified membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Saba Amiri, Vahid Vatanpour, Yaghoub Mansourpanah, Alireza Khataee
Summary: This paper critically reviews the application of nanomaterials in membrane technologies, with a focus on nanoscale zero-valent metals and metal single atoms. The performance and fabrication techniques of these materials in membrane processes are discussed, with emphasis on the use of nanoscale zero-valent iron as a reactive medium for wastewater treatment. The key factors for contaminants removal under different operation conditions are compared. In addition, the dynamic simulations of metal single atoms in membrane processes and future research directions are reviewed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Paria Hemmati-Eslamlu, Aziz Habibi-Yangjeh, Xuefei Xu, Chundong Wang, Alireza Khataee
Summary: This study reports a novel plasmonic photocatalyst fabricated by adorning tubular g-C3N4 with Ag2WO4, Ag, and AgI nanoparticles. The photocatalyst exhibits excellent photocatalytic ability under visible light, significantly enhancing the degradation of various organic substances. The impressive activity is attributed to the efficient harvesting of light energy, segregation of charge carriers, and improved charge migrations.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
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)
