Review
Engineering, Environmental
Akbar Samadi, Ming Xie, Jingliang Li, Hokyong Shon, Chunmiao Zheng, Shuaifei Zhao
Summary: This paper provides a comprehensive review of typical PANI-based adsorbents and their properties, discussing the removal of various aqueous contaminants by PANI-based adsorbents and assessing the altered morphology, pore size, surface charge, and functional groups of the adsorbents through unique doping/dedoping processes. The adsorption mechanisms of aqueous pollutants by PANI-based adsorbents include a variety of interactions, leading to enhanced adsorption performance. Future outlooks focus on the application prospects of PANI-based adsorbents in the removal of water pollutants.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Engineering, Chemical
Asma Shafique
Summary: This review paper discusses the increasing water pollution caused by wastewater discharge from various industries, highlighting the health and environmental problems associated with different pollutants. It also provides information on adsorption techniques for removing pollutants from aqueous solutions, including adsorbent materials, applications, capacities, and characteristics.
DESALINATION AND WATER TREATMENT
(2021)
Review
Environmental Sciences
M. Pajak
Summary: This article reviews the ability of Al-based sludge to adsorb inorganic pollutants and textile dyes from aqueous solutions. It emphasizes the high adsorption capacity and suggests further research in unexplored directions.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Anirban Karmakar, Anup Paul, Ines R. M. Santos, Pedro M. R. Santos, Elia Pantanetti Sabatini, Atash V. Gurbanov, M. Fatima C. Guedes da Silva, Armando J. L. Pombeiro
Summary: In this study, four new zinc(II) coordination polymers (CPs) were synthesized and characterized. CP 1, with an anthracene group, showed the highest efficiency in removing various cationic and anionic dyes. CPs 3 and 4, tagged with pyrene, selectively removed cationic dyes.
CRYSTAL GROWTH & DESIGN
(2022)
Review
Environmental Sciences
Yujie Zhang, Beihai Zhou, Huilun Chen, Rongfang Yuan
Summary: This review focuses on the removal of organophosphorus pollutants (OPs) from aqueous solutions using heterogeneous photocatalysis. It provides detailed descriptions of the photocatalytic mechanism and the influence of catalyst types on the degradation effect, and summarizes the photocatalytic degradation pathways of several OPs. The study shows that the photocatalytic process can effectively reduce the toxicity of OPs. Additionally, the effects of common water matrices on the heterogeneous photocatalytic degradation of OPs are discussed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Biotechnology & Applied Microbiology
Omar Fawzi Suleiman Khasawneh, Puganeshwary Palaniandy
Summary: The global concern over the accumulation, toxicity, and potential risk of organic pollutants in the aquatic environment is increasing, while conventional wastewater treatment methods are inefficient. Therefore, developing effective techniques for the removal of organic pollutants is crucial. Photocatalysis technology is considered a promising, effective, and sustainable approach, with Fe2O3-TiO2 showing good performance for pollutant removal.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Review
Engineering, Environmental
Lixin Li, Jiazhen Han, Xiaohui Huang, Shan Qiu, Xihan Liu, Lilai Liu, Mengjie Zhao, Jiwei Qu, Jinlong Zou, Jun Zhang
Summary: This article reviews the progress of metal-organic frameworks (MOFs) in the removal of organic contaminants from water, including knowledge mapping, classification, synthesis, and design. The adsorption mechanism of organic pollutants in MOFs, application trends, and the bottleneck issues and prospects are also discussed.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Abdulrahman Abu-Nada, Ahmed Abdala, Gordon McKay
Summary: There is a growing awareness of water scarcity issues by 2050, with a focus on the need for recycling wastewater to ensure national water security. Adsorption technology, particularly using graphene-based adsorbents, is highly effective in removing pollutants from water. Research challenges include limited regeneration studies, behavior of mixed pollutants, designing adsorbents for specific pollutants, and economic analyses of treatment systems.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Green & Sustainable Science & Technology
Hairui Hou, Lin Fang, Lijie Liu, Bing Zhao, Dedong Wu, Zixuan Ma, Baowei Hu, Xiangxue Wang, Shujun Yu
Summary: Iron single-atom materials have great potential in efficiently removing various toxic and hazardous pollutants from aqueous solutions. However, their thermodynamic instability requires them to be loaded onto support materials. This review summarizes the preparation and physicochemical properties of iron single-atom materials supported by different carrier materials and analyzes their applications in pollutant degradation and heavy metal ion removal.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Engineering, Chemical
Saheed A. Ganiyu, Mohammed Awwal Suleiman, Waheeba Ahmed Al-Amrani, Abdullahi Kilaco Usman, Sagheer A. Onaizi
Summary: This article comprehensively reviews the recent studies on the adsorptive removal of organic pollutants from wastewater using zeolitic imidazolate frameworks (ZIFs) and their composites. The synthesis approaches, adsorption performance, isotherms and kinetics, process parameters, and adsorption mechanisms of ZIF-based materials are thoroughly analyzed. The article also addresses the remaining knowledge gaps, limitations, and proposes future research directions. Overall, this article provides a state-of-the-art review of the application of ZIF-based materials for the adsorptive removal of organic pollutants from wastewater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Environmental Sciences
Baskaran Sivaprakash, Natarajan Rajamohan, Angelin Reshmi, Abitha Annadurai, Sunita Varjani
Summary: Membrane based filtration technology is a promising approach for the rehabilitation of wastewater for reuse and recycle. This review focuses on the treatment methods using submerged and staged systems of membranes for water purification. Different types of membranes, such as ceramic, polymeric and mixed matrix membranes, are discussed in detail, along with their modification methods to improve rejection efficiency, permeability, durability, stability and antifouling properties. Graphene oxide is highlighted as the most considered membrane material for adsorption purposes. Additionally, the use of embedded nanomaterial matrices in both submerged and staged operations has shown maximum efficiency. Overall, submerged membranes are more commonly used due to their simpler configuration and lower operational and maintenance issues.
Article
Engineering, Environmental
Jie Ren, Ruirui Li, Xuemiao Wang, Meng Li, Wu Yang
Summary: This study developed a hydrogel adsorbent for the removal of dye pollutants in dyeing wastewater. The hydrogel exhibited good adsorption performance towards various organic dyes and could spontaneously adsorb at ambient temperature. Additionally, it could be completely degraded by microorganisms in the soil.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Review
Engineering, Environmental
Yangxian Liu, Shuo Shi, Yan Wang
Summary: Removal of pollutants from gas streams using Fenton-like oxidation systems has gained attention for its promising multi-pollutant removal capability. However, challenges like metal ion recovery, low radical utilization, and system stability remain to be addressed. Strategies like catalyst synthesis, mass transfer enhancement, and reactor optimization are proposed to overcome the existing defects and improve the efficiency of these technologies.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Environmental Sciences
Audrey Tchinsa, Md Faysal Hossain, Tong Wang, Yanbo Zhou
Summary: MOFs have unique properties that make them suitable for adsorptive removal of harmful organic pollutants from aqueous solution. While the introduction of functional groups and other external materials can enhance the performance of MOFs, it also increases manufacturing costs, posing a challenge for large-scale applications.
Article
Biochemistry & Molecular Biology
Lucas Del Coli B. Araujo, Henrique K. de Matos, Debora P. Facchi, Debora A. de Almeida, Bruna M. G. Goncalves, Johny P. Monteiro, Alessandro F. Martins, Elton G. Bonafe
Summary: In this study, a natural carbohydrate-based CS/Pec hydrogel adsorbent was developed for efficient removal of Pb(II) from aqueous solutions, showing high adsorption capacities. However, the hydrogel adsorbent exhibited limited potential for reuse, indicating the need for further research to improve its reusability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)