Article
Engineering, Chemical
Luana C. S. Nascimento, Mauricio L. Torem, Ellen C. Giese, Antonio G. Merma, Luiz C. Bertolino, Nathalia O. A. Anjos
Summary: Run-of-mine (ROM) palygorskite from Guadalupes in Piaui, Brazil, was found to have a maximum sorption capacity of 18 mg/g for Nd3+ ions. More than 99% of Nd was removed from the solution at pH 5. The Temkin model provided the best fit for the sorption data, indicating an electrostatic interaction between PAL and Nd3+ ions.
MINERALS ENGINEERING
(2023)
Article
Environmental Sciences
James Friday Amaku, Segun A. Ogundare, Kovo G. Akpomie, Jeanet Conradie
Summary: ALU and KECA were used as adsorbents for the removal of toxic hexavalent chromium (Cr(VI)) from the aqueous phase. KECA showed a higher adsorption capacity and better reusability compared to ALU.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Mohammad Eftekhari, Mohammad Gheibi, Hossein Azizi-Toupkanloo, Zahra Hossein-Abadi, Majeda Khraisheh, Amir Mohammad Fathollahi-Fard, Guangdong Tian
Summary: This study utilized Aerated Autoclave Concrete (AAC) modified with chitosan to synthesize AAC-CH composite for efficient and low cost removal of Cu2+, Pb2+, and malachite green from water. Optimal conditions were determined through Central Composite Design in Response Surface Methodology (CCD-RSM), and various isotherms indicated Freundlich as the governing adsorption mechanism. Kinetic modeling showed pseudo second order adsorption kinetics and physiosorption as the main interaction with AAC-CH composite. The high efficiency, low cost, reusability, and environmentally friendly aspects make AAC-CH composite a promising adsorbent for water decontamination.
JOURNAL OF INDUSTRIAL INFORMATION INTEGRATION
(2021)
Article
Biochemistry & Molecular Biology
Reda M. Abdelhameed, Mahmoud El-Shahat, Hassan Abdel-Gawad, Bahira Hegazi
Summary: The current paper describes the application of newly formulated beads from copper-benzenetricarboxylate (Cu-BTC), polyacrylonitrile (PAN), and chitosan (C), Cu-BTC@C-PAN, C-PAN, and PAN, for the removal of phenolic chemicals from water. The adsorption optimization of 4-chlorophenol (4-CP) and 4-nitrophenol (4-NP) using beads was studied, including the effects of various experimental factors. The Langmuir model and pseudo-second-order kinetic equation were found to be suitable for explaining the adsorption isotherms and kinetics of the system. Cu-BTC@C-PAN beads showed higher adsorption capacities compared to PAN for both 4-CP and 4-NP.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Agricultural Engineering
Dan Bahadur Pal, Roli Saini, Neha Srivastava, Irfan Ahmad, Mohammad Y. Alshahrani, Vijai Kumar Gupta
Summary: This study investigated the removal of lead from simulated wastewater using cost-effective bio-adsorbents made from mango seed shell with kernel (M) and jamun seed shell with kernel (JP). The optimal adsorption conditions were determined to be a speed of 500 rpm, a dosage of 60 mg, a pH of 6.5, and a contact time of 120 min. The bio-adsorbents exhibited adsorption capacities of around 39.15 mg/g for M and 20.28 mg/g for JP, with maximum lead removal efficiencies of 94.85% and 92.78%, respectively. The Freundlich model and pseudo-first order reaction kinetic model were found to best fit the regression coefficient for both bio-adsorbents.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Abdulaziz G. Alghamdi, Zafer Alasmary
Summary: The transport of heavy metals to groundwater depends on soil characteristics such as carbonate and clay minerals, organic matter content, soil pH, etc. Most heavy metals in calcareous soils are precipitated as metal carbonate minerals, so their transport to groundwater is not expected. This study focuses on the adsorption and transport of lead (Pb) and copper (Cu) in calcareous soil in the presence of calcium carbonate.
Article
Biochemistry & Molecular Biology
Perumal Karthikeyan, Sankaran Meenakshi
Summary: A novel and environmentally-friendly chitosan encapsulated magnetic kaolin beads were fabricated and applied for the adsorption of phosphate and nitrate ions from water in this study. The synthesized beads showed promising potential as selective and effective adsorbents for the removal of phosphate and nitrate ions from aqueous solutions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Laishram Saya, W. Rameshwor Singh, Sunita Hooda
Summary: Organic-inorganic nanoblends, such as polysaccharide-blended-inorganic ones, have versatile applications and have gained significant research attention. In this study, a magnetic guar gum/graphene oxide nanocomposite blended with CuO was successfully prepared and investigated for its adsorption capacity for ciprofloxacin removal. The results showed that the nanocomposite exhibited excellent adsorption capacity and the adsorption process was spontaneous.
JOURNAL OF WATER PROCESS ENGINEERING
(2024)
Article
Polymer Science
Jorge Lozano-Montante, Raquel Garza-Hernandez, Mario Sanchez, Edgar Moran-Palacio, Guillermo Nino-Medina, Mario Almada, Luis Hernandez-Garcia
Summary: This study successfully achieved the adsorption of Pb(II) ions in water by cellulose derivatives, and identified that cellulose composite materials cross-linked with chitosan modified with 2-methylpyridine and succinic anhydride have higher adsorption capacities. Kinetic data showed a pseudo-second-order behavior in the adsorption process.
Article
Environmental Sciences
Lina Ramirez Arenas, Philippe Le Coustumer, Stephan Ramseier Gentile, Stephane Zimmermann, Serge Stoll
Summary: The presence of nanoparticles in drinking water raises concerns about their potential risks to human health and the efficacy of water treatment plants in removing them. This study examines the efficiency of granular activated carbon (GAC) in removing CeO2 nanoparticles. The results show that GAC has a good affinity for nanoparticles, with higher adsorption capacity and removal efficiency in lake water compared to ultrapure water. The adsorption mechanism is mainly controlled by electrostatic attractions, and mass transfer processes play a role in the removal of nanoparticles in lake water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Abdulrahman Abu-Nada, Ahmed Abdala, Gordon McKay
Summary: Graphene oxide (GO) was successfully synthesized and characterized in this study, showing excellent adsorption capability for removing Sr (II) from aqueous solutions. The adsorption equilibrium and kinetic results were in agreement with the Langmuir isotherm model and the pseudo-second-order kinetic model. The maximum strontium adsorption capacity reached 131.4 mg/g, suggesting potential applications in wastewater treatment.
Article
Environmental Sciences
Di Zhao, Shang-kai Qiu, Meng-meng Li, Yuan Luo, Li-sheng Zhang, Meng-han Feng, Ming-yao Yuan, Ke-qiang Zhang, Feng Wang
Summary: This study investigated the adsorption of soil organic phosphorus by lanthanum modified biochar, traditional gypsum, and zeolite using phytic acid. The results showed that modified biochar had the strongest affinity for phytate phosphorus and the ability to store phosphorus, fitting well with Langmuir isotherm and pseudo-second-order kinetic equation. Overall, the combination of modified biochar and soil phytate phosphorus can provide a good theoretical basis for reducing the loss of soil organic phosphorus.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
M. H. Omidi, M. H. Ahmadi Azqhandi, B. Ghalami-Choobar
Summary: In this study, a nanocomposite material consisting of reduced graphene oxide, nickel-aluminum layered double hydroxide, and poly acrylic acid was used to remove tetracycline from water. The nanocomposite showed high removal efficiency and adsorption capacity, surpassing previously reported adsorbents.
Article
Environmental Sciences
Ula Rozman, Barbara Klun, Gregor Marolt, Jernej Imperl, Gabriela Kalcikova
Summary: In this study, the adsorption and subsequent desorption of titanium dioxide (nTiO2) and zinc oxide (nZnO) nanoparticles, as well as polyethylene microplastics (MPs), in aquatic media were investigated. The results showed that nZnO had a faster adsorption rate than nTiO2, but nTiO2 had a higher adsorption extent on MPs. The low adsorption of nZnO could be attributed to the partial dissolution of zinc from nZnO, which resulted in soluble zinc complexes not being adsorbed on MPs. The adsorption process was found to be controlled by physisorption for both nTiO2 and nZnO. Meanwhile, the desorption of nTiO2 was low and independent of pH, while the desorption of nZnO was pH-dependent, with a higher desorption rate at a slightly acidic pH. These findings provide insights into the complex interactions and fate of MPs and metal engineered nanoparticles in the aquatic environment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Energy & Fuels
Hedi Jedli, M. M. Almoneef, Mohamed Mbarek, Abdessalem Jbara, Khalifa Slimi
Summary: The aim of this research is to evaluate the adsorption isotherms and kinetics of CO2 on zeolite ZSM-5. The Langmuir model provided the best fit for CO2 adsorption, indicating that it is a spontaneous and exothermic process. The kinetics of CO2 adsorption on the adsorbent were found to be influenced by temperature and pressure. The results can be utilized in CO2 separation and adsorption system performance evaluation.
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)