Article
Green & Sustainable Science & Technology
Lubna Jaber, Ihsanullah Ihsanullah, Ismail W. Almanassra, Sumina Namboorimadathil Backer, Alaa Abushawish, Abdelrahman K. A. Khalil, Hussain Alawadhi, Abdallah Shanableh, Muataz Ali Atieh
Summary: In this study, a low-cost Fe2O3 nanoparticle doped granular activated carbon (Fe-GAC) was prepared and used for the removal of lead and chromium ions from water. Fe-GAC 5 showed a maximum adsorption capacity of 11.9 mg g(-1) for Pb(II) and 22.1 mg g(-1) for Cr(T). Fe-GAC 5 can be regenerated and reused using 1.0 M HCl. It effectively reduced heavy metal loading in actual brackish water.
Article
Chemistry, Multidisciplinary
Rabia Baby, Mohd Zobir Hussein, Zulkarnain Zainal, Abdul Halim Abdullah
Summary: Functionalized activated carbon (FAC) was prepared by introducing nitro groups onto activated carbon for the treatment of heavy metal-contaminated water. FAC showed maximum adsorption capacity for heavy metal ions like Cr6+, Pb2+, Zn2+, and Cd2+ under optimized adsorption parameters, following a pseudo-second-order kinetic model. Adsorption isotherm models like Freundlich and Langmuir were used to determine the best fitting models for each metal ion.
Review
Environmental Sciences
Md Saif Hasan, Aneek Krishna Karmakar
Summary: Spent automobile batteries are a significant source of harmful heavy metals for the environment, and activated carbons have been proven effective in treating these metals. This review provides a comprehensive overview of the application of activated carbons in adsorbing heavy metals from spent car batteries in aquatic systems, discussing their preparation, adsorption mechanisms, and future research recommendations.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Ana Rita Oliveira, Antonio Alberto Correia, Maria Graca Rasteiro
Summary: Carbon nanotubes (CNTs) are extensively studied nanoparticles due to their unique properties, but the challenge of CNT aggregation affects their applications. Modifying the surface energy of CNTs through chemical and mechanical stabilization can effectively stabilize CNTs and enhance their performance in heavy metal removal.
Review
Environmental Sciences
Jessica H. Taylor, Salman Masoudi Soltani
Summary: This article introduces the application of carbonaceous adsorbents in the treatment of aquaculture effluent to improve environmental friendliness and sustainable development. The article discusses in detail the lifecycle of the adsorbents and their application in aqueous media, and highlights some research gaps.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Polymer Science
Wenyan Song, Tianfeng Huang, Huajiang Zuo, Dongmei Deng, Chunyi Tang
Summary: Environmentally friendly natural materials, chitosan and tannic acid, were used to prepare a composite membrane for removing manganese from water. The immobilization of Stenotrophomonas maltophilia on the composite membrane improved the removal performance. Optimization of experimental conditions resulted in the best immobilization rate for S. maltophilia. The removal rate of manganese ions reached over 70% under specific conditions.
Article
Chemistry, Analytical
Bingbing Qiu, Xuedong Tao, Hao Wang, Wenke Li, Xiang Ding, Huaqiang Chu
Summary: This review summarizes the research progress on biochar as an adsorbent for heavy metal pollution water treatment, including the effects of its physicochemical properties on heavy metal adsorption, the effectiveness of modified biochar, and various factors influencing heavy metal adsorption. Additionally, different mechanisms of heavy metals adsorption based on different physicochemical properties are discussed.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Applied
Meysam Shahrashoub, Somayeh Bakhtiari
Summary: The study synthesized magnetic nanoparticle composite adsorbents using a green method, which showed great efficiency in removing copper from aqueous solutions. Specifically, the powdered activated carbon-magnetite nanoparticles composite exhibited higher adsorption capacity compared to granular activated carbon magnetite nanoparticles composite.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Affonso C. Goncalves Jr, Daniel Schwantes, Alessandro L. Braccini, Francisco Albornoz, Elio Conradi Jr, Juliano Zimmermann
Summary: This study evaluated the capacity of canola meal-based adsorbents for Cd2+ removal from water. The materials were characterized by their chemical composition and thermal stability, and the most likely mechanism for Cd adsorption was found to be physical. The use of canola meal as a feedstock for activated biochar production shows potential for producing competitive adsorbents.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Lina Ramirez Arenas, Stephan Ramseier Gentile, Stephane Zimmermann, Serge Stoll
Summary: The study shows that Granular Activated Carbon is effective in adsorbing and removing PS nanoplastics, with higher adsorption capacity in Lake Geneva water containing DOM and cations. The adsorption is mainly driven by electrostatic interactions and pseudo-second-order kinetics, with Langmuir and Freundlich isotherms not adequately describing the adsorption process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Chemical
Shao-zhong Hu, Ting Huang, Nan Zhang, Yan-zhou Lei, Yong Wang
Summary: The discharge of wastewater rich in heavy metals and organic substances leads to ecosystem deterioration, environmental pollution, and food pollution. Metal organic frameworks (MOFs) are highly promising materials for wastewater treatment due to their large specific surface area and pore volume, as well as their structure designability. In this study, a novel adsorbent (PEI@UiO-66-NH2) was synthesized and it exhibited improved chemical stability and increased adsorption sites compared to common UiO-66-NH2. The adsorption behaviors of PEI@UiO-66-NH2 were systematically studied, and it was found that it can reach adsorption equilibrium within 5 minutes for Pb(II) and methyl orange (MO). The theoretical adsorption capacities for Pb(II) and MO were found to be 692.80 mg/g and 497.51 mg/g, respectively. The study also established dynamic theoretical adsorption models, providing guidance for scale-up experiments in wastewater treatment. PEI@UiO-66-NH2 showed excellent performance in recycling Pb(II) and MO, indicating its promising application in removing wastewater contaminants.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Qi Zuo, Hong Zheng, Pengyi Zhang, Yu Zhang
Summary: The low-cost purification material polydopamine/activated carbon fibers (PDA/H-ACF) was successfully prepared for efficient and selective trace heavy metals removal from drinking water. The optimized sample showed enhanced adsorption performance for trace lead, meeting the relevant standard requirement, and demonstrated superior adsorption capabilities in various conditions, indicating promising application prospects.
Article
Multidisciplinary Sciences
Mohammad Hadi Dehghani, Sahar Afsari Sardari, Mojtaba Afsharnia, Mehdi Qasemi, Mahmoud Shams
Summary: The use of pottery granules (PG) as an adsorbent for removing toxic metal Pb(II) from drinking water was studied. The physicochemical factors such as contact time, PG dose, pH, solution temperature, and coexisting ions were investigated. The results showed that PG had efficient adsorption capacity for Pb(II), with removal increasing with increasing PG dose and agitation time, and decreasing with increasing Pb(II) concentration. The adsorption process was described as favorable, with Pb(II) being adsorbed in multilayers onto the PG surface.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
A. Bumajdad, P. Hasila
Summary: In this study, high surface area activated carbon (AC) was successfully prepared and showed excellent CO2 uptake capacity. Nitrogen atoms doped into the carbon frameworks were found to enhance the adsorption of Pb(II) while having little effect on the removal of Cr(VI).
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Yekbun Avsar Teymur, Fuat Guzel
Summary: Accumulation of dyes, drugs, and heavy metals in water is an ongoing environmental issue that impacts various ecosystems. This study investigates the adsorption performance of a new activated carbon synthesized from black cumin waste for the removal of methylene blue, oxytetracycline, and lead (II) from water. The results show that the activated carbon has high adsorption capacity and stability, making it a potential candidate for efficient wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)