Article
Engineering, Environmental
Alusani Manyatshe, Zamani E. D. Cele, Mohammed O. Balogun, Thabo T. Nkambule, Titus A. M. Msagati
Summary: Improving the surface chemistry of biocomposites is crucial for enhancing their application potential. Chemical methods have been frequently used in the preparation of biocomposites, which are mainly composed of lignocellulosic derivatives and chitosan. This review evaluates different preparation methods and investigates the application of biocomposites as biosorbent materials for removing organic and inorganic contaminants in aqueous solutions.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Jaimy Scaria, Ashitha Gopinath, N. Ranjith, Vyshakh Ravindran, Safar Ummar, P. Nidheesh, M. Suresh Kumar
Summary: This review discusses the applicability of carbonaceous materials for the removal of emerging contaminants (ECs) from aquatic environments. The versatility of carbonaceous materials as adsorbents and catalysts for ECs removal is highlighted. The mechanistic aspects and catalytic properties of carbonaceous materials for ECs removal are also discussed.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Green & Sustainable Science & Technology
Nur Faradila Anuar, Darween Rozehan Shah Iskandar Shah, Fitri Fareez Ramli, Mohd Saufi Md Zaini, Nasrin Agha Mohammadi, Ahmad Rafizan Mohamad Daud, Syed Shatir A. Syed-Hassan
Summary: Antibiotics are released into aquatic systems through wastewater treatment plants, posing health and environmental risks. Adsorption using biomass-based carbon adsorbents shows promise in removing antibiotics. This systematic review examines the efficiency of biomass-based carbon adsorbents in removing antibiotics, discussing surface chemistry, adsorption capacities, and influential variables. The findings suggest that coconut shell and sawdust based-carbon adsorbents have a reusable efficiency of 89% after the fourth cycle of reuse. Overall, this review highlights the potential of biomass-based carbon adsorbents for antibiotic removal.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Applied
Ashagrie Liyew Ayele, Belachew Zegale Tizazu, Abrham Bayeh Wassie
Summary: This study investigated the use of chemically activated Teff straw biosorbent for the removal of Cr(VI), and optimized the modification and process parameters. The results showed that H3PO4- and KOH-modified Teff straw biosorbent had high removal efficiency for Cr(VI) under appropriate conditions. In addition, the study also examined the adsorption parameters and thermodynamic properties of Cr(VI) adsorption.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Polymer Science
Georgiana Mladin, Mihaela Ciopec, Adina Negrea, Narcis Duteanu, Petru Negrea, Paula Svera (m. Ianasi), Catalin Ianasi
Summary: In recent years, the discharge of harmful metallic ions, including selenium, from industrial wastes into water bodies has raised concerns. Selenium is an essential microelement for human life and plays a vital role in human metabolism. The present study focuses on using the sol-gel synthesis method to prepare a nanocomposite adsorbent material for selenite adsorption.
Article
Chemistry, Multidisciplinary
Leila Azaryouh, Hajar Abara, Zineb Kassab, El-houssaine Ablouh, Adil Aboulkas, Mounir El Achaby, Khalid Draoui
Summary: The current study synthesized carbonaceous composites from CMF extracted from Alfa fibers and Moroccan clay ghassoul for heavy metal removal from wastewater. The synthesized carbonaceous ghassoul material was characterized and used as an adsorbent for cadmium removal. The adsorption equilibrium was reached within 60 minutes, and the maximum adsorption capacity for ca-Gh was found to be 261.9 mg g(-1). Thermodynamic tests showed that the adsorption of Cd2+ onto the investigated material is spontaneous and endothermic.
Article
Chemistry, Applied
Kang Li, Liang Yu, Juanjuan Cai, Lixiong Zhang
Summary: In this study, novel porous C@C composite adsorbents were prepared and applied for the adsorption of methylene blue (MB) and rhodamine B (RB). The optimized adsorption conditions led to high adsorption capacity, and the adsorption isotherms were well described by Langmuir model and pseudo-second-order adsorption kinetics model.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Energy & Fuels
Ruixue Pang, Tingyan Lu, Jiawei Shao, Linlin Wang, Xiaying Wu, Xinyue Qian, Xin Hu
Summary: In this study, N-doped porous carbonaceous CO2 sorbents were synthesized using hazelnut shell as raw materials. The materials exhibited high CO2 adsorption capacities, stable recyclability, selectivity, and dynamic capture performance, suggesting a high potential for future applications.
Article
Environmental Sciences
Mingyue Zhang, Yaru Zhou, Xinling Yang, Xiaochong Lu, Xu Zhao, Zeshao Chen, Weidong Duan, Junfeng Li, Mingqin Zhao, Quanyu Yin
Summary: In this paper, esterified tobacco straw based hydrogels (ETS-PAA) were synthesized from waste tobacco straw biomass for the adsorption of heavy metal ions. The results showed that ETS-PAA possessed more pores, leading to a better adsorption capacity. The maximum adsorption amounts of Pb2+, Cu2+ and Cd2+ were 2.41 mmol center dot g(-1), 1.93 mmol center dot g(-1) and 1.77 mmol center dot g(-1), respectively. This work provides a promising material for the removal of heavy metal pollutants from aqueous solution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Deborah T. Bankole, Abimbola P. Oluyori, Adejumoke A. Inyinbor
Summary: Pharmaceuticals are a unique class of emerging contaminants that can have physiological effects on humans and animals even at low concentrations. They are released into the environment mainly through human and animal waste, and their persistence and mode of action make them a major concern. The adsorption technique, particularly using low-cost agricultural wastes, has been found to be effective in removing pharmaceutical contaminants in wastewater treatment. This study provides an overview of the different categories of pharmaceuticals, their risks in the environment, and the suitability and potency of activated carbon/agro waste for their adsorption. It also highlights the benefits of using agricultural wastes in pharmaceutical removal and identifies research prospects and challenges in this field.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Raj Mohan Balakrishnan, Indumathi Ilango, Ganga Gamana, Xuan-Thanh Bui, Arivalagan Pugazhendhi
Summary: Emerging contaminants, specifically drugs and pharmaceuticals in urban regions, pose a major challenge in wastewater treatment. Ampicillin, a beta-lactam antibiotic compound, has been successfully degraded using mixed metal oxides nanoparticles in the Advanced Oxidation Process, serving as a fundamental catalyst.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Engineering, Environmental
Zhuo Li, Kun Chen, Zhou Chen, Weining Li, Bernard Wiafe Biney, Aijun Guo, Dong Liu
Summary: Upcycling PUPW into AC for MG removal in wastewater is cost-effective and environmentally friendly. Different preparation procedures lead to varied properties of PUPW-AC, with intentional modulation possible. PUPW-AC-C-A shows excellent adsorption performance for MG due to electrostatic attraction, oxygen-containing groups, and pi-pi interaction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Dongdong Liu, Zhengkai Hao, Dengqian Chen, Lipeng Jiang, Tianqi Li, Bing Tian, Cuiping Yan, Yuan Luo, Guang Chen, Hongfu Ai
Summary: In this study, Ca-modified biochar adsorbents (CEA) were prepared using eggshell and Eupatorium adenophorum. The CEA-2 sample prepared with a 1:2 mass ratio showed a maximum Pb adsorption capacity and exhibited monolayer adsorption characteristics, mainly through chemical precipitation mechanism.
Article
Chemistry, Applied
Kazuki Kino, Tomoyoshi Sakamoto, Jinghan Yuan, Yoshimasa Amano, Motoi Machida
Summary: Quaternary nitrogen functionalized porous carbon derived from thermally stabilized polyacrylonitrile fiber showed excellent performance in removing nitrate anion from water, with an adsorption capacity of 0.6 mmol/g or more in the pH range of 3-8. The presence of equivalent N-Q sites on the carbon surface contributed to the adsorption performance, which was comparable to ion-exchange resin.
Article
Engineering, Chemical
Angel Villabona-Ortiz, Candelaria Tejada-Tovar, Angel D. Gonzalez-Delgado
Summary: This study aims to evaluate the adsorption capacity of different biomasses for nickel ions removal, with lemon peels showing the highest removal efficiency up to 96%. Optimum conditions for adsorption were observed at pH = 6 and particle size = 1 mm, while cassava peels, oil palm bagasse, and yam peels displayed a chemical adsorption nature according to the Elovich model.
DESALINATION AND WATER TREATMENT
(2021)
