Article
Chemistry, Multidisciplinary
Talia Tene, Stefano Bellucci, Marco Guevara, Edwin Viteri, Malvin Arias Polanco, Orlando Salguero, Eder Vera-Guzman, Sebastian Valladares, Andrea Scarcello, Francesca Alessandro, Lorenzo S. Caputi, Cristian Vacacela Gomez
Summary: In this study, pristine reduced graphene oxide (rGO) was used to remove cationic pollutants from water, such as methylene blue and mercury ions. The pristine rGO showed high adsorption capacity and short adsorption time, and exhibited a mixed physisorption-chemisorption process. These findings provide a new perspective for the removal of cationic pollutants using oxidized graphene materials.
Review
Chemistry, Multidisciplinary
Pei Lay Yap, Julker Nine, Kamrul Hassan, Tran Thanh Tung, Diana N. H. Tran, Dusan Losic
Summary: This review establishes the structure-function-performance relationship between graphene-based sorbents and multiple water pollutants, uncovers the correlation between adsorption properties of sorbents and pollutant removal efficiency, and elaborates on the rational design of advanced multipollutant sorbents based on graphene. Finally, it presents the reality, challenges, and opportunities of using advanced graphene materials as emerging sorbents for sustainable water purification technology.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Environmental Sciences
Avik Kumar Dhar, Humayra Akhter Himu, Maitry Bhattacharjee, Md Golam Mostufa, Fahmida Parvin
Summary: In recent decades, the release of pollutants into aquatic systems from increased industrial, agricultural, and domestic activities has created a need for reliable and environmentally friendly methods of removal. Bentonite clays have emerged as a cost-effective and sustainable solution in wastewater treatment, offering superior properties such as high adsorption capacity and chemical stability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Biochemistry & Molecular Biology
Yuanyuan Wang, Yuan Xu, Xintian Lu, Kefeng Liu, Fengfeng Li, Bing Wang, Qiang Wang, Xv Zhang, Guihua Yang, Jiachuan Chen
Summary: The preparation of adsorbents from biomass using hydrothermal carbonization (HTC) has gained significant attention in recent studies. This paper provides a summary of research on carbon adsorbents developed from various sources with HTC, including the reaction mechanism, different products, modification methods to obtain activated carbon, and their application in treating heavy metal pollution and organic dyes in wastewater. The maximum adsorption capacity of carbon from different biomass sources is also evaluated.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Environmental Sciences
Drisya G. Chandran, Loganathan Muruganandam, Rima Biswas
Summary: The contamination of water sources is accelerating due to the rapid growth in world population, industrialization, and urbanization. This poses a major concern as the non-biodegradable heavy metals in waterways disrupt the ecological balance. The removal of heavy metals from water has become increasingly important, with adsorption techniques using novel adsorbents like carbon nanomaterials attracting attention. This review paper focuses on the fundamental concepts, structures, and unique surface properties of these adsorbents, as well as the negative effects of heavy metals and the adsorption mechanism. It also discusses the current research status of sustainable wastewater treatment, the applications and adsorption capacity of carbon nanomaterials, functionalized carbon nanotubes, graphene, and graphene oxide, and the use of MD simulations and density functional theory (DFT) for heavy metal removal. Additionally, it addresses the influence of factors such as electric field and pressure on heavy metal adsorption.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Inorganic & Nuclear
Maqzia Bashir, Maria Batool, Nayab Arif, Muhammad Tayyab, Yu-Jia Zeng, Muhammad Nadeem Zafar
Summary: Unfortunately, water pollution caused by various contaminants, including inorganic and emerging organic contaminants, is increasing rapidly and posing a serious challenge. In addition to human-induced pollution, unpredictable weather conditions and rising temperatures are likely to impact water dissemination and accessibility. Therefore, the development of efficient wastewater treatment methods is crucial for ensuring water reusability. Metallic nanoparticles, particularly those based on strontium (Sr), have been extensively studied due to their promising properties. This review article highlights the advances in using Sr-based nanomaterials for the removal of different classes of contaminants and discusses their synthesis methods, medical applications, and future perspectives.
COORDINATION CHEMISTRY REVIEWS
(2023)
Review
Biotechnology & Applied Microbiology
Yasser Vasseghian, Elena-Niculina Dragoi, Fares Almomani, Van Thuan Le, Mohammed Berkani
Summary: Graphene-based membranes (GBMs) have unique physical and chemical properties that make them suitable for applications such as pollutant removal and water desalination, offering high potential. GBM techniques are capable of producing large, leak-free, and fouling-free membranes, showing promise for the removal of hazardous pollutants from water.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Biochemistry & Molecular Biology
Yongxue Li, Xinyi Dong, Longshan Zhao
Summary: A new type of magnetic chitosan nanocomposites modified with graphene oxide and polyethyleneimine (MCS/ GO-PEI) was synthesized and used as an effective adsorbent for removing toxic heavy metals and anionic azo dyes in environmental water. The adsorption experiments showed that the material had strong adsorption performance for the four analytes, with the adsorption process following pseudo-second-order kinetic and Langmuir isotherm model. pH was investigated and optimized as an important parameter in the adsorption process. The prepared MCS/ GO-PEI nanocomposite demonstrated promising reusability as an adsorbent for arsenic, mercury, congo red, and amaranth in environmental water samples.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Environmental Sciences
Huining Zhang, Xingmao Liu, Lihong Tian, Yuling Tang, Zhongyu Shi, Yankui Xiao, Zhiguo Wu, Ying Zhu, Qi Guo, Zhangpu Peng
Summary: In this study, polyvinyl alcohol/functionalized graphene oxide macroporous composite spheres (PVA/GO-SH) were successfully prepared to address the separation, mechanical strength, and secondary pollution issues associated with functionalized graphene oxide. The experiments showed that PVA/GO-SH exhibited high removal rates and equilibrium adsorption capacities for Cu2+ and Pb2+. The composite spheres also maintained excellent spherical shape and stability.
WATER AIR AND SOIL POLLUTION
(2022)
Review
Environmental Sciences
B. Senthil Rathi, P. Senthil Kumar, Dai-Viet N. Vo
Summary: This article discusses the impact of water pollution on the environment and health, introduces the presence and treatment methods of hazardous pollutants in wastewater effluents, and emphasizes the importance of risk assessment for hazardous pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Environmental Sciences
Saravanan Rajendran, A. K. Priya, P. Senthil Kumar, Tuan K. A. Hoang, Karthikeyan Sekar, Kar Yeen Chong, Kuan Shiong Khoo, Hui Suan Ng, Pau Loke Show
Summary: This review quantitatively describes the viability of nano-adsorbent processing in wastewater detoxification by extracting heavy metal ions. It comprehensively evaluates the impact of nano-adsorbent functionalities on essential attributes and analyzes their limited resistance to adsorb some heavy metal ions. The study investigates experimental variables and separate models to understand the mechanism behind adsorption. The review highlights the different nano-based techniques and their potential applications in environmental remediation.
Review
Environmental Sciences
Durgadevi Selvaraj, Navamani Kartic Dhayabaran, Arivazhagan Mahizhnan
Summary: Algae-based treatment of textile wastewater is an eco-friendly and cost-effective method that efficiently removes pollutants and produces bioenergy and high-value products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Chemistry, Physical
Ravindra Kumar Gautam, Ankit Kumar Singh, Ida Tiwari
Summary: This review examines the progress made in the development of nanoscale layered double hydroxide (LDH) based hybrid nanomaterials for the treatment of various environmental pollutants in wastewater. The synthesis of LDH nanomaterials and their modification by different materials are analyzed, as well as the characterization tools used. The applications of LDH based hybrid nanomaterials for the remediation of heavy metals, dyes, antibiotics, phosphates, pharmaceuticals, and other organic compounds in wastewater are discussed, along with the operating parameters and remediation mechanisms.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Environmental Sciences
Estefania Belen Ingrassia, Eliana Soledad Lemos, Leticia Belen Escudero
Summary: The textile industry produces waste that contains a variety of organic and inorganic pollutants, such as dyes and toxic metals. Adsorption has emerged as an efficient method for removing these pollutants from textile waste, offering advantages such as simplicity, economy, and the possibility of reusing adsorbents. This review provides an introduction to adsorption, including its fundamentals, mechanisms, and analytical techniques. It also presents the latest advances in using carbon-based nano-adsorbents for the removal of pollutants from textile waste.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Engineering, Environmental
Zafar Iqbal, Mohd Saquib Tanweer, Masood Alam
Summary: In addition to their common applications as catalysts, drug delivery systems, and sensors, metal oxides can also function as adsorbents in wastewater treatment. Chemical modification is often necessary to optimize their adsorption capabilities, leading to the production of carbonaceous metal oxides, polymeric metal oxides, and surfactant-supported metal oxides. Creating tailored morphologies, high surface areas, and specific affinity for adsorption are the main driving factors behind the development of such materials. Various analytical techniques have been used to investigate the mechanisms underlying these reactions. The development of chemically modified metal oxides with supported surfaces is of particular importance due to their increased practical applications.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)