4.7 Article

Removal of lead (II) from acieouos waste using (CD-PCL-TiO2) bio-nanocomposites

期刊

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2017.12.046

关键词

Nanocomposite; Adsorption; Aqueous waste; Isotherm; Kinetics

向作者/读者索取更多资源

Lead (Pb) pollution is our water system is a major concern, as this metal is toxic even at low concentration. This study aim to fabricate a bio-nanocomposite (cyclodextrin-polycaprolactone titanium dioxide) that will be used as an adsorbent for the removal of lead in aqueous waste. In this study, titanium dioxide was synthesized via sol-gel technique then incorporated in a polymer blend (CD-PCL) via solution blending method. The resulting bio-nanocomposites were characterized using Scanning Electron Microscopy (SEM), transmission electron microscope (TEM) and Brunauer Emmett and Teller (BET). The effect of how factors such as pH, concentration and adsorbent dose affect the removal efficiency of the bio-nanocomposites were studies. Maximum adsorption of lead obtained was 98% at pH 9.7, 10 ppm with 0.005 g dosage. Kinetic studies and adsorption isotherms were also investigated. The adsorption data fit Langmuir isotherm. Pb (II) obeyed pseudo-second order kinetics. (C) 2017 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Polymer Science

Determination of cure mechanism inside die for a part manufacturing during large-scale pultrusion

Arindam Mukherji, Nozer Tarapore, James Njuguna

Summary: This study calculated the cure kinetics of resin using various models, investigated the thermal conductivity and heat capacity of resin during the manufacturing process, and predicted the thermal behavior of resin during pultrusion operation. The influence of operating conditions on heat transfer and resin conversion was evaluated and validated with experimental results in a scale-up steady state process.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

Review Materials Science, Multidisciplinary

Thermal Spray Coatings for Electromagnetic Wave Absorption and Interference Shielding: A Review and Future Challenges

Nadimul Haque Faisal, Rehan Ahmed, Nazmi Sellami, Anil Prathuru, James Njuguna, Federico Venturi, Tanvir Hussain, Hamed Yazdani Nezhad, Nirmal Kumar Katiyar, Saurav Goel, Hari Upadhyaya, Shrikant Joshi, Firdaus Muhammad-Sukki, Radhakrishna Prabhu, Tapas Mallick, Will Whittow, Spyros Kamnis

Summary: This review consolidates scattered literature on thermally sprayed coatings with nonionizing electromagnetic wave absorption and shielding capabilities, exploring their potential value in diverse applications and identifying key research areas related to material selection and coating fabrication.

ADVANCED ENGINEERING MATERIALS (2022)

Article Polymer Science

(3-Aminopropyl) Triethoxysilane (APTES) Functionalized Magnetic Nanosilica Graphene Oxide (MGO) Nanocomposite for the Comparative Adsorption of the Heavy Metal [Pb(II), Cd(II) and Ni(II)] Ions from Aqueous Solution

Cabangani Donga, Shivani B. Mishraz, Alaa S. Abd-El-Azie, Llyod N. Ndlovu, Ajay K. Mishra, Alex T. Kuvarega

Summary: In this study, magnetic graphene oxide was synthesized and used for the adsorption of three heavy metals. The magnetic graphene oxide was prepared by coupling magnetic nanosilica with graphene oxide using (3-aminopropyl) triethoxysilane as a functionalizing agent. The experimental results showed that the Fe3O4@SiO2-NH2/GO nanoadsorbents exhibited excellent adsorption performance and stability.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2022)

Article Polymer Science

Oil-Based Mud Waste as a Filler Material in LDPE Composites: Evaluation of Mechanical Properties

Shohel Siddique, Adam Novak, Emin Guliyev, Kyari Yates, Pak Sing Leung, James Njuguna

Summary: This study investigates the use of drilling waste as filler in polymer composites. The results suggest that incorporating oil-based mud (OBM) clay in slurry form in the low-density polyethylene (LDPE) matrix can significantly decrease the thermal stability and mechanical properties of the composite material. It is hypothesized that the poor Van der Waals force between the polymer molecules/clay platelets and the applied force is the main reason behind the deterioration in mechanical properties.

POLYMERS (2022)

Article Multidisciplinary Sciences

TiO2-modified g-C3N4 nanocomposite for photocatalytic degradation of organic dyes in aqueous solution

Ntakadzeni Madima, Kebede K. Kefeni, Shivani B. Mishra, Ajay K. Mishra

Summary: In this study, a direct S-scheme heterojunction structure of titanium dioxide/graphitic carbon nitride nanocomposite was fabricated using a green synthetic method. The nanocomposite exhibited remarkable photocatalytic activity, high degradation efficiency, and cycle stability, making it a promising candidate for water pollutant purification.

HELIYON (2022)

Review Materials Science, Composites

Manufacturing Defects in Thermoplastic Composite Pipes and Their Effect on the in-situ Performance of Thermoplastic Composite Pipes in Oil and Gas Applications

Obinna Okolie, Jim Latto, Nadimul Faisal, Harvey Jamieson, Arindam Mukherji, James Njuguna

Summary: This article provides an overview of the influence of manufacturing on the end performance of thermoplastic composite pipes (TCP) and discusses the formation of defects during the production process and their impact on material performance. The study indicates the need to reduce defects during manufacturing through process optimization and defect characterization techniques, and to improve production efficiency.

APPLIED COMPOSITE MATERIALS (2023)

Article Materials Science, Multidisciplinary

Visible-light-driven Z-scheme ternary Fe3O4/TiO2/g-C3N4 nanocomposite as reusable photocatalyst for efficient removal of dyes and chromium in water

Ntakadzeni Madima, Kebede K. Kefeni, Alex T. Kuvarega, Shivani B. Mishra, Ajay K. Mishra

Summary: A highly efficient magnetic recyclable Z-scheme ternary Fe3O4/TiO2/g-C3N4 heterojunction photocatalyst was designed through the hydrothermal method. The prepared photocatalysts were characterized and showed superior photocatalytic degradation efficiency for organic dyes and Cr(VI) under simulated solar light irradiation. The increase in photocatalytic activity of the ternary photocatalyst was attributed to the enhancement in electron-hole pair separation and the construction of the Z-scheme heterojunction structure. The results suggest that ternary photocatalysts have potential applications in real-world wastewater treatment.

MATERIALS CHEMISTRY AND PHYSICS (2023)

Article Chemistry, Physical

Photocatalytic Activity and Reusability of F, Sm3+ Co-Doped TiO2/MWCNTs Hybrid Heterostructure for Efficient Photocatalytic Degradation of Brilliant Black Bis-Azo Dye

Sabastian Simbarashe Mukonza, Nhamo Chaukura, Ajay Kumar Mishra

Summary: A global freshwater pollution catastrophe is emerging due to pollutants of emerging concern. Conventional water treatment methods are unable to effectively remove pharmaceuticals and dye house effluent from aquatic systems. This study presents an innovative wastewater treatment method based on solar-light-responsive semiconductor-based photocatalysts as a potential solution to this issue.

CATALYSTS (2023)

Review Polymer Science

Advances in surface modification and functionalization for tailoring the characteristics of thin films and membranes via chemical vapor deposition techniques

Amir Hossein Mostafavi, Ajay Kumar Mishra, Fausto Gallucci, Jong Hak Kim, Mathias Ulbricht, Anna Maria Coclite, Seyed Saeid Hosseini

Summary: This review introduces various promising chemical and physical surface modification techniques for tailoring the characteristics of thin films and membranes. It focuses on the application of chemical vapor deposition (CVD) techniques and discusses the impact of process parameters on the quality and properties of deposition. The review highlights the significance of CVD-based membranes and thin films for industrial applications.

JOURNAL OF APPLIED POLYMER SCIENCE (2023)

Article Engineering, Marine

Structural response of a compliant pipe-in-pipe under frictionless and frictional conditions of the seabed

Auwalu I. Mohammed, Konstantinos Bartzas, Callum Johnson, Stuart Spence, Paul Skyes, George Kidd, Jennifer McConnachie, James Njuguna

Summary: Pipe-in-Pipe (PIP) technology has shown superior performance in deep-water and high-pressure high temperature fields compared to conventional single pipe. It effectively mitigates flow assurance problems and can be applied in marine environments. However, the mechanisms and stresses of load transfer within the PIP system and seabed are not fully understood. This study examined the effect of pressure, temperature, and combined loading on PIP systems for flat seabed subsea pipelines.

OCEAN ENGINEERING (2023)

Article Chemistry, Analytical

Unlocking the Potential of N-Doped SnO2 for Sustainable Photocatalytic Degradation of Carcinogenic Dyes

Ritika Sharma, Sanjeev Kumar, Ravinder Kumar, Prasanta Kumar Sahu, Vandana Kumari, Ajay Kumar Mishra, Vinod Kumar

Summary: Environmental adulteration is a growing concern due to wastewater effluents, with carcinogenic dyes being major contaminants. Nanotechnology has shown potential for efficient degradation of these dyes. This study explores the photocatalytic degradation of dyes using N-doped SnO2 nanoparticles and found promising results.

SEPARATIONS (2023)

Article Materials Science, Composites

Investigation on Mechanical and Thermal Properties of 3D-Printed Polyamide 6, Graphene Oxide and Glass-Fibre-Reinforced Composites under Dry, Wet and High Temperature Conditions

Mariah Ichakpa, Matthew Goodyear, Jake Duthie, Matthew Duthie, Ryan Wisely, Allan MacPherson, John Keyte, Ketan Pancholi, James Njuguna

Summary: This study focuses on 3D printing of polyamide 6 (PA6), PA6/graphene oxide (PA6/GO) and PA6/glass-fibre-reinforced (PA6/GF) composites to improve interfacial bond and interlaminar strength. The effects of environmental conditions and process parameters on the quality of 3D-printed polymer composites are examined. The results show that PA6/GF samples have the highest strength in ambient and high-temperature conditions, but the least strength in wet conditions. The introduction of 0.1% GO improves the tensile strength in different conditions, with the wet PA6/GO samples demonstrating the highest strength in wet conditions, making it suitable for water-exposed engineering applications.

JOURNAL OF COMPOSITES SCIENCE (2023)

Review Materials Science, Composites

Bio-Based Sustainable Polymers and Materials: From Processing to Biodegradation

Obinna Okolie, Anuj Kumar, Christine Edwards, Linda A. Lawton, Adekunle Oke, Seonaidh McDonald, Vijay Kumar Thakur, James Njuguna

Summary: In the life cycle of a material, environmental factors can cause chemical or physical changes, leading to polymer degradation. Bio-based polymers have been identified as a solution for sustainable polymers. This study focuses on PLA, PCL, PHA, and PA as biopolymers of interest and compares their sustainability impacts and biodegradation pathways.

JOURNAL OF COMPOSITES SCIENCE (2023)

Review Multidisciplinary Sciences

Advances in structural analysis and process monitoring of thermoplastic composite pipes

Obinna Okolie, Jim Latto, Nadimul Faisal, Harvey Jamieson, Arindam Mukherji, James Njuguna

Summary: Thermoplastic composite pipes (TCP) have advantages such as flexibility, lightweight and corrosion resistance, but manufacturing defects can occur in the consolidation process, affecting long-term performance. The industry faces challenges in on-the-spot detection during continuous manufacturing. Optimizing the process and understanding the parameters causing defects are essential solutions.

HELIYON (2023)

Review Chemistry, Multidisciplinary

A review on I-III-VI ternary quantum dots for fluorescence detection of heavy metals ions in water: optical properties, synthesis and application

Bambesiwe M. May, Mokae F. Bambo, Seyed Saeid Hosseini, Unathi Sidwaba, Edward N. Nxumalo, Ajay K. Mishra

Summary: Heavy metal contamination is a significant environmental threat, with water environments being particularly vulnerable. This review highlights the use of non-cadmium photo-luminescent I-III-VI ternary quantum dots (QDs) as fluorescent detectors for heavy metal ions in water. The optical properties and synthesis methods of these QDs are summarized, along with the various detection mechanisms involved. The potential applications in environmental remediation and the associated challenges are also discussed.

RSC ADVANCES (2022)

Article Biochemistry & Molecular Biology

Effects of aging and diabetes on the deformation mechanisms and molecular structural characteristics of collagen fibrils under daily activity

Wei-Han Hui, Yen-Lin Chen, Shu-Wei Chang

Summary: Crosslinking affects the mechanical behavior and tissue metabolism of collagen-based tissues. Aging and diabetes alter the crosslinking type and density, thus changing tissue properties. High-connectivity enzymatic crosslinking and advanced-glycation end-products result in uniform deformation under daily activity, while low-connectivity enzymatic crosslinking does not. High-connectivity model displays more sliding, while AGEs induce instability in structures near the binding sites.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Tea polyphenols protect against Flavobacterium columnare-induced gill injury via suppression of oxidative stress, inflammation, and apoptosis in grass carp

Yao-Bin Ma, Xiao-Qiu Zhou, Wei-Dan Jiang, Pei Wu, Yang Liu, Shu-Wei Li, Ling Tang, Lu Zhang, Hai-Feng Mi, Lin Feng

Summary: Tea polyphenols (TPs) are an inexpensive feed additive that can protect the gill function of fish against Flavobacterium columnare (F. columnare) through various mechanisms, including suppression of oxidative stress, apoptosis, and inflammation.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Neddylation-dependent LSD1 destabilization inhibits the stemness and chemoresistance of gastric cancer

Yan-Jia Guo, Jing-Ru Pang, Yu Zhang, Zhong-Rui Li, Xiao-Lin Zi, Hong-Min Liu, Ning Wang, Li-Juan Zhao, Ya Gao, Bo Wang, Piet Herdewijn, Cheng-Yun Jin, Ying Liu, Yi-Chao Zheng

Summary: This study identifies the conjugation of NEDD8 to LSD1 and its impact on GC cells, revealing the significance of LSD1 neddylation in GC.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Review Biochemistry & Molecular Biology

Cellular and physiological roles of sigma factors in Vibrio spp.: A comprehensive review

Geum-Jae Jeong, Fazlurrahman Khan, Nazia Tabassum, Young-Mog Kim

Summary: Vibrio species are motile gram-negative bacteria commonly found in aquatic environments. They can adapt to environmental fluctuations and develop protective mechanisms against host immune systems. Different types of sigma and anti-sigma factors play important roles in regulating gene expression and virulence in Vibrio species.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

An eco-friendly composite hydrogel based on covalently crosslinked cellulose/poly (glycerol citrate) for thallium (І) removal from aqueous solutions

Zahra Mohammadbagheri, Behrooz Movahedi, Shaghayegh Saeedi, Abbas Rahmati

Summary: In this study, a reusable biobased composite hydrogel was successfully synthesized and used for the removal of Tl(I) from aqueous solutions. The hydrogel exhibited high adsorption capacity and thermal stability, and the adsorption process was found to be thermodynamically spontaneous. The results demonstrated that the hydrogel can be reused multiple times without significant loss of its adsorption capacity.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Enzyme-triggered approach to reduce water bodies' contamination using peroxidase-immobilized ZnO/SnO2/alginate nanocomposite

Iqra Batool, Muhammad Imran, Ayesha Anwar, Farhan Ahmed Khan, Afrah E. Mohammed, Ashwag Shami, Hafiz Iqbal

Summary: Enzyme immobilization on ZnO/SnO2 and ZnO/SnO2/SA nanocomposites was studied, and the catalytic and biochemical characteristics of the immobilized enzyme were investigated. The results showed that ZnO/SnO2 and ZnO/SnO2/SA nanostructures are suitable carriers for enzyme immobilization.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Bacterial cellulose microfiber reinforced hollow chitosan beads decorated with cross-linked melamine plates for the removal of the Congo red

Elias Mosaffa, Dhruvi Patel, Nasim Amiri Ramsheh, Rishikumar Indravadan Patel, Atanu Banerjee, Hossein Ghafuri

Summary: In this study, a unique 3D bead structure of adsorbent, composed of bacterial cellulose microfilaments reinforced chitosan adorned with melamine 2D plates, was synthesized for anionic dye removal. The adsorbent showed high specific surface area and abundant functional groups, resulting in exceptional adsorption capacity. The characteristics and optimal conditions of the adsorbent were assessed and analyzed.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Necrotic activity of ExhC from Mammaliicoccus sciuri is mediated by specific amino acid residues

Carolina Gismene, Jorge Enrique Hernandez Gonzalez, Marilia de Freitas Calmon, Andrey Fabricio Ziem Nascimento, Angela Rocio Nino Santisteban, Felipe Antunes Calil, Alana Della Torre da Silva, Paula Rahal, Rejane Maira Goes, Raghuvir Krishnaswamy Arni, Ricardo Barros Mariutti

Summary: Mammaliicoccus sciuri, a bacterium of clinical and veterinary relevance, expresses the virulence factor Exfoliative Toxin C (ExhC), which binds specifically to desmoglein-1 (Dsg1) and plays a role in tissue integrity. This study investigates the necrotic activity of ExhC and identifies a variant lacking necrotic potential but retaining enzymatic activity through mutagenesis experiments and crystal structure determination.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Silk-hydrogel functionalized with human decellularized Wharton's jelly extracellular matrix as a minimally invasive injectable hydrogel system for potential nucleus pulposus tissue replacement therapy

Bibhas K. Bhunia, Ashutosh Bandyopadhyay, Souradeep Dey, Biman B. Mandal

Summary: Intervertebral disc degeneration is a major cause of chronic low back pain and disability. Researchers have developed a bioactive silk-based hybrid hydrogel system functionalized with decellularized human Wharton's jelly extracellular matrix as bioactive cues. The hydrogels mimic the rheological and mechanical properties of the native nucleus pulposus tissue and support cell viability, proliferation, and tissue maturation.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

A uniform-unsaturated crosslinking strategy to construct injectable alginate hydrogel

Qun Zhang, Yonggan Yan, Zhao Li, Jing Du, Kai Zhang, Liguo Zhang, Ting Wang, Alberto Bianco, Shaohua Ge, Baojin Ma

Summary: A new crosslinking strategy has been devised to construct injectable sodium alginate hydrogels, which can be regulated for injectability and have great potential in biomedical applications.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

α-Tocopherol-loaded multi-layer nanoemulsion using chitosan, and dextran sulfate: Cellular uptake, antioxidant activity, and in vitro bioaccessibility

Seong Eun Hong, Ji-Soo Lee, Hyeon Gyu Lee

Summary: The potential of multi-layer nanoemulsions for improving the cellular uptake, antioxidant activity, and in vitro bioaccessibility of alpha-tocopherol was examined. The results showed that the multi-layer nanoemulsions significantly enhanced the cellular uptake and antioxidant activity of alpha-tocopherol compared to free coumarin 6. Furthermore, the use of chitosan and dextran sulfate as wall materials in the multi-layer nanoemulsions led to even higher cellular uptake, in vitro bioaccessibility, and antioxidant activity of alpha-tocopherol.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Stabilization of oil-in-water high internal phase emulsions with octenyl succinic acid starch and beeswax oleogel

Jingjing Yu, Yanhui Zhang, Ruoning Zhang, Yanxiang Gao, Like Mao

Summary: High internal phase emulsions (HIPEs) based on beeswax (BW) oleogels and octenyl succinic acid starch (OSA starch) were prepared by a simple one-step method. The results showed that oleogelation improved the stability and encapsulation capability of the HIPEs, which is significant for the development of novel healthy food.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Review Biochemistry & Molecular Biology

A review for the correlation between optic atrophy 1-dependent mitochondrial fusion and cardiovascular disorders

Bi-Feng Yao, Xiu-Ju Luo, Jun Peng

Summary: The balanced and continuous fission and fusion of mitochondria, regulated by OPA1, are important for maintaining mitochondrial dynamics in cardiovascular disorders. Understanding the role of OPA1 in mitochondrial fusion can provide insights into the pathogenesis of cardiovascular diseases.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Review Biochemistry & Molecular Biology

Nanomaterials for detection of biomolecules and delivering therapeutic agents in theragnosis: A review

Gokul Paramasivam, Anandhavelu Sanmugam, Vishnu Vardhan Palem, Murugan Sevanan, Ananda Babu Sairam, Nachiappan Nachiappan, Buhyun Youn, Jung Sub Lee, Muthuchamy Nallal, Kang Hyun Park

Summary: Nanomaterials are being used to deliver therapeutic agents in living systems. Different nanotechnological applications such as immunosensors, immune assays, and drug delivery are being implemented using nanotechnology. Genomics plays a crucial role in selecting appropriate drugs for personalized cancer therapy. It helps in analyzing gene and protein expression, disease classification, and designing disease models. Delivering drugs to specific areas using nanoparticles is a challenging issue.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)

Article Biochemistry & Molecular Biology

Preparation and characterization of hemicellulose films reinforced with amino polyhedral oligomeric silsesquioxane for biodegradable packaging

Jing Li, Wei Wang, Han Wu, Feng Peng, Hui Gao, Ying Guan

Summary: In this study, CMH-based CPF films were prepared and their thermal and barrier properties were successfully regulated. The tensile strength and water vapor barrier property of CPF films were significantly improved, making them promising for food packaging applications.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2024)