Article
Physics, Multidisciplinary
Mahdie Kamalabadi, Sina Khalili, Tayyebeh Madrakian, Abbas Afkhami
Summary: In this study, a magnetic covalent organic framework (MCOF) was synthesized using a simple solution method. It was found to have excellent dye adsorption properties, and the variables affecting the removal efficiency were investigated and optimized. The material was characterized using various techniques, and the adsorption process was described using mathematical models.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Multidisciplinary
Jin Li, Xiaoyan Wang, Jianxin Yu, Hanqin Wang, Xiaobo Wang
Summary: In this study, carbon dots were synthesized by a one-step hydrothermal method and characterized for their morphology and composition. The obtained carbon dots exhibited good dispersibility and fluorescence properties, and selective responses to Fe3+ and ascorbic acid. The developed nanoprobe was successfully utilized for the detection of Fe3+ in lake water samples and ascorbic acid in human urine samples.
Article
Engineering, Chemical
Jinlin Yang, Xingnan Huo, Hanxin Xiao, Zongyu Li, Hengjun Li, Shaojian Ma
Summary: This study focuses on the comprehensive recycling and utilization of zinc ferrite, a by-product of wet zinc refining, for the treatment of azo dye wastewater. Various materials, including zinc ferrite derived from by-products of wet zinc refining, synthesized zinc ferrite, and titanium dioxide prepared using the sol-gel method, were studied as adsorbents for Amido Black 10B. Factors such as calcination temperature, mixing ratio, initial pH, adsorbent dosage, adsorption time, initial concentration, and reaction temperature were adjusted to investigate their effects on the adsorption process. The study found that titanium dioxide and purified zinc ferrite achieved over 90% removal efficiency for Amido Black 10B, and the best performance was observed at a ratio of 4:6 for purified zinc ferrite to titanium dioxide.
Article
Polymer Science
Faisal Kholiya, Ankit Singh, Amit Gosai, Ramavatar Meena
Summary: Agaraldehyde and chitosan functional beads were prepared as dye adsorbent for removing seven dyes from aqueous solutions, with a focus on amido black dye. The bio-beads showed encouraging adsorption efficiency and followed both Langmuir and Freundlich isotherms, while adhering to pseudo-second-order kinetics for dye removal. This study highlighted the potential of R-A(ald)-CHI as an effective adsorbent for dye removal from wastewater.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Environmental Sciences
Arunachalam Chinnathambi, Tahani Awad Alahmadi
Summary: The Fe(3)O(4)x%-PANI@GO hybrid composites show excellent adsorption efficiency and ease of recovery, making them suitable for the removal of Cr(VI) and phosphate ions from water treatment.
Article
Energy & Fuels
Dan Bahadur Pal, Rangabhashiyam Selvasembian, Pardeep Singh
Summary: Composite copper-ceria-based adsorbents prepared by different methods were studied for cadmium removal. The results showed that the sol-gel method had better cadmium removal efficiency due to a larger surface area.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Engineering, Environmental
Qian Zheng, Shuxin Tu, Jingtao Hou, Chunlan Ni, Mengqing Wang, Lu Ren, Mingxia Wang, Menghua Cao, Shuanglian Xiong, Wenfeng Tan
Summary: The study showed that Fe-Mn binary oxide maintains excellent stability for As(III) removal, attributed to the rapid return of aqueous Fe(II) and Mn(II) to the solid surface and subsequent formation of new mineral phases mediated by Fe and Mn oxides.
Article
Environmental Sciences
Dibya Ranjan Rout, Hara Mohan Jena
Summary: In this study, a functionalized composite material RGO-PEG-ZnO was successfully synthesized for the adsorptive removal of phenolic pollutants from water, achieving a good removal effect. The composite material showed rapid adsorption and high adsorption capacity, making it an efficient adsorbent for treating phenolic pollutants from wastewater.
ENVIRONMENTAL RESEARCH
(2022)
Article
Engineering, Environmental
A. Bekhoukh, I Moulefera, F. Z. Zeggai, A. Benyoucef, K. Bachari
Summary: The study found that the PANI@CA adsorbent had higher specific surface area and mesoporous volume, demonstrating superior removal capacity for MO compared to PANI alone. Kinetic and isothermal analysis indicated that the pseudo second order kinetics and Langmuir model provided better fit to the experimental results.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Materials Science, Ceramics
Sravan Bokka, Srungarpu Nagabhusan Achary, Anirban Chowdhury
Summary: This study demonstrates the potential of quintinite as an efficient adsorbent for toxic dyes. Through a facile synthesis method, layered double hydroxide with high adsorption capacity is prepared in an aqueous medium without additional modification.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Eun-Ji Cho, Jin-Kyu-Kang, Chang-Gu Lee, Seong-Jik Park
Summary: This study repurposes waste Fenton sludge (FS) into effective Fenton sludge biochar (FS-BC) for As(V) removal from wastewater, achieving a remarkable adsorption capacity of 148.7 mg/g. The method contributes to sustainable wastewater treatment, highlighting waste transformation for valuable resource creation in environmental remediation.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Asma Amjlef, Salaheddine Farsad, Abdellah Ait El Fakir, Abdallah El Asri, Souad El Issami, Said Et-Talev, Noureddine El Alem
Summary: This study presents a long-term strategy for utilizing quartz sand as an efficient and low-cost adsorbent by coating it with polyaniline. The resulting hybrid material (QS@PANI) showed excellent performance in removing Orange G dye from aqueous solutions due to the synergistic effect of the quartz sand and polyaniline. The adsorption process was explained through kinetics and equilibrium models, and the material exhibited high removal efficiency even after multiple cycles, making it a promising material for decolorization applications.
CERAMICS INTERNATIONAL
(2023)
Article
Polymer Science
Opeoluwa Adeiga, Tarisai Velempini, Kriveshini Pillay
Summary: A novel polyaniline-decorated lignocellulose composite adsorbent, MNS-PANI, was prepared and showed high efficiency in the uptake of Cr(VI). The adsorption behavior of MNS-PANI was well-described by pseudo-second-order kinetics and Langmuir isotherm models, with endothermic and spontaneous uptake of Cr(VI). Moreover, the spent adsorbent exhibited efficient photocatalytic degradation of ciprofloxacin.
Article
Environmental Sciences
Tasbeeh Ullah, Kashif Gul, Hamayun Khan, Behisht Ara, Tanveer Ul Haq Zia
Summary: In this study, a reduced magnetic graphene oxide/polyaniline (RmGO/PANI) composite was synthesized and investigated as an adsorbent for the removal of moxifloxacin (MOX) and ofloxacin (OFL) from water samples. The RmGO/PANI showed high removal efficiency and could be reused for multiple cycles.
Article
Chemistry, Multidisciplinary
Antonio Fotia, Angela Malara, Emilia Paone, Lucio Bonaccorsi, Patrizia Frontera, Giulia Serrano, Andrea Caneschi
Summary: Nanofibers of PANI doped with HCSA and blended with polymers like PMMA and PVAc were fabricated using electrospinning. SEM and TGA were used to characterize the morphology and thermal stability, and an extensive study was conducted to understand copolymer influence on film properties. PVAc copolymer showed significantly higher conductivity than the PMMA system. Hybrid fibers based on PANI/PVAc/graphene oxide and PANI/PVAc/iron oxide were also produced and characterized to improve electrochemical features. The obtained mats have potential applications in sensors, health, smart devices, and multifunctional textile materials.
Article
Environmental Sciences
Jyoti Mittal, Rais Ahmad, Mohammad Osama Ejaz, Asna Mariyam, Alok Mittal
Summary: A novel bio-nanocomposite (Alg-Cst/Kal) was synthesized for the effective removal of Crystal Violet dye from aqueous solutions. The material demonstrated excellent adsorption properties and was found to follow Freundlich adsorption isotherm model. Thermodynamic studies showed the endothermic nature and spontaneity of the adsorption process. The material's high adsorption capacity and potential for wastewater treatment were highlighted.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Materials Science, Multidisciplinary
Rais Ahmad, Khalid Ansari, Mohammad Osama Ejaz
Summary: In this study, a poly(acrylamide)-grafted cell@Fe3O4 (PAC@Fe3O4) nanocomposite was synthesized, and its adsorption performance for Pb(II), Ni(II), and Cu(II) in wastewater was investigated. The research found that the adsorption efficiency was pH-dependent, with the highest removal occurring at high pH levels and at pH 5 for all three metal ions. The maximum adsorption capacities were determined to be 313.02 mg g(-1) for Pb(II), 219.33 mg g(-1) for Ni(II), and 210.71 mg g(-1) for Cu(II). Kinetic analysis revealed that the adsorption of metal ions followed second-order kinetics, with chemical adsorption as the rate-limiting step. The adsorption process was endothermic and spontaneous.
EMERGENT MATERIALS
(2022)
Review
Green & Sustainable Science & Technology
Jamiu O. Eniola, Rajeev Kumar, M. A. Barakat, Jamshaid Rashid
Summary: The review highlights the need for innovative approaches to tackle pharmaceutical pollutants in drinking water and wastewater. Conventional treatment methods are limited in their efficiency for removing pharmaceutical pollutants, necessitating the development of new and advanced treatment technologies. Hybrid technology and membrane bioreactors show promise in enhancing the removal efficacy of pharmaceutical pollutants. Future research should focus on the integration of multiple technologies to achieve better removal of pharmaceuticals.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Mohamed A. Barakat, Rajeev Kumar, Riyadh F. Halawani, Bandar A. Al-Mur, Moaaz K. Seliem
Summary: This study developed a composite material using magnetite nanoparticles synthesized from altered basalt, H2O2-activated bentonite, and fibrous sawdust for the removal of methylene blue. The characterization and analysis of the composite revealed its effective adsorption capacity and stability. The study also provided insights into the adsorption mechanism at both the molecular scale and energetic level.
Article
Chemistry, Multidisciplinary
Rajeev Kumar, Mohammad Oves, Mohammad Omaish Ansari, Md Abu Taleb, Mohamed Abou El-Fetouh Baraka, Mansour A. Alghamdi, Naief Hamoud Al Makishah
Summary: In this study, a series of aerogel materials were synthesized for the removal of pharmaceutical drugs and microbes from beverage industry wastewater. The Ni3S4/Ag2S/TiO2/CA aerogel showed high efficiency and achieved optimal removal under acidic conditions.
Article
Chemistry, Multidisciplinary
Misfer Al Hawash, Rajeev Kumar, Mohamed A. Barakat
Summary: In this study, polyaniline and graphene oxide nanosheet immobilized granular tea waste (PANI/GO@GTW) were synthesized for the removal of anionic and cationic contaminants from groundwater. The results showed that PANI/GO@GTW exhibited high adsorption capacity and efficient removal of bromide ions.
Article
Energy & Fuels
Rais Ahmad, Mohammad Osama Ejaz
Summary: In this study, a potential bentonite/silver nanoparticles-alginate bio-nanocomposite was synthesized and found to be effective in adsorbing methylene blue dye. The surface morphology of the bio-nanocomposite was analyzed using various analytical methods, and the optimum adsorption conditions and Langmuir isotherm fitting results were determined. The adsorption was confirmed to be endothermic and spontaneous based on the thermodynamic parameters.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Review
Biochemistry & Molecular Biology
Muzammil Anjum, Mobeena Anees, Samia Qadeer, Azeem Khalid, Rajeev Kumar, Mohamed. A. Barakat
Summary: Landfill leachate (LFL) treatment is challenging due to its complex pollutants, but anaerobic digestion with pretreatment methods shows promise in producing renewable energy and valuable chemicals from leachate. Various pretreatment techniques, such as electrochemical, ultrasonic, alkaline, coagulation, nanofiltration, air stripping, adsorption, and photocatalysis, are summarized in this review. The incorporation of pretreatment and anaerobic digestion offers a high economic viability through bioenergy production and cost savings in sustainable leachate management.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Rajeev Kumar, Mohammad Omaish Ansari, Md Abu Taleb, Mohammad Oves, Mohamed A. Barakat, Mansour A. Alghamdi, Naief H. Al Makishah
Summary: In this study, an integrated adsorption-photocatalysis process was used to effectively remove oxytetracycline from aqueous solution by fabricating an adsorbent-photocatalyst integrated material. The results demonstrated that the combination of adsorption and photocatalysis can significantly improve the removal efficiency, and the material showed sustained efficacy even after multiple cycles of use.
Article
Chemistry, Physical
Rajeev Kumar, Md. Abu Taleb, Mohamed A. Barakat, Bandar Al-Mur
Summary: This article reports a facile fabrication of tungsten oxide (WO3)/bismuth oxychloride (BiOCl) immobilized on polyaniline (PAn) (BiOCl/WO3@PAn) heterojunction nanocomposite photocatalyst. The synthesized BiOCl/WO3@PAn nanocomposite showed higher visible light absorption behavior and bandgap energy reduction than the WO3 and BiOCl. The study is important as it presents an advanced photocatalyst that can utilize solar energy for water purification applications.
Article
Chemistry, Multidisciplinary
Ahmed N. N. Doyo, Rajeev Kumar, Mohamed A. A. Barakat
Summary: A facile one-step in situ oxidative polymerization synthesis method was used to fabricate polyaniline@waste cellulosic nanocomposite adsorbent to remove copper(II) and phenol from aqueous solution. The structural and surface properties of the synthesized material were examined and the adsorption behavior of Cu(II) and phenol onto the material was investigated. The PANI@WTP adsorbent showed high adsorption capacity for Cu(II) and phenol, and the efficiency remained excellent even after multiple cycles of regeneration.
Article
Engineering, Chemical
Rais Ahmad, Mohammad Osama Ejaz
Summary: A novel Alginate-Silver nanoparticle/Mica bio-nanocomposite was synthesized and utilized for the removal of methylene blue and brilliant green dyes from aqueous solution.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Applied
Rais Ahmad, Mohammad Osama Ejaz
Summary: Hybrid materials of hydrates/proteins/nanoparticles can effectively remove Crystal violet dye, with the optimal adsorption conditions of pH 8, 0.01 g adsorbent dosage, and a duration of 180 minutes, achieving a maximum adsorption capacity of 85.13 mg/g.
Article
Energy & Fuels
Jamshaid Rashid, Talha Tufail Bhatti, Muhammad Hassan, M. A. Barakat, Rajeev Kumar, Ming Xu
Summary: Production of biogas from crop wastes via the biological route is a promising technology for sustainable development. A study investigated the use of photocatalytic pretreatment to enhance the anaerobic process efficiency. Rice husk was pretreated using Indium Vanadate decorated Titania nanocomposite, leading to higher biodegradability and biogas production. The results showed that photocatalytic pretreatment significantly increased the cumulative biogas production compared to raw or untreated rice husk.
Article
Chemistry, Physical
Rajeev Kumar
Summary: The toxicity of nanomaterials to aquatic life is a major concern, and immobilizing them in a polymeric matrix could offer a practical solution for wastewater purification. In this study, AlOOH nanoparticles were immobilized in a polystyrene matrix to create an effective adsorbent for removing Pb(II) from aqueous solutions. The synthesized composite showed excellent adsorption efficiency and could be used on a large scale.
COLLOIDS AND INTERFACES
(2022)
