Article
Green & Sustainable Science & Technology
Felycia Edi Soetaredjo, Livy Laysandra, Jindrayani Nyoo Putro, Shella Permatasari Santoso, Artik Elisa Angkawijaya, Maria Yuliana, Yi-Hsu Ju, Chun-Hui Zhou, Suryadi Ismadji
Summary: The study successfully improved the efficiency of bleaching earth production by using a thermal activation process, reducing the negative impact on equipment and products.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Jamil Naser, Onoriode P. Avbenake, Fadimatu N. Dabai, Baba Y. Jibril
Summary: This study investigates the regeneration and utilization of spent bleaching earth (SBE) generated by the vegetable oil refining industry. The results show that methanol-extracted regenerated bleaching earth exhibits superior bleaching property, while n-hexane extracted oil produces more fatty acid methyl esters (FAME) during biodiesel production. Therefore, the choice of solvent depends on the intended application.
Article
Green & Sustainable Science & Technology
Damian Marcinkowski, Kamil Czwartkowski, Marta Bochniak, Monika Werenska, Pawel Krzaczek
Summary: The main purpose of this research is to study the relationship between the amount of bleaching earth used in the bleaching process of rapeseed oil and the efficiency of this process. The research found that reducing the amount of bleaching earth can decrease the content of chlorophyll and carotenoids in the oil, thus changing its color. Additionally, it was found that the bleaching earth can still be used after reaching its maximum adsorption capacity, although its adsorption properties decrease.
Article
Chemistry, Physical
Yahui Shi, Xiaofan Cheng, Dongjin Wan, Xiangxiang Chen, Yongde Liu, Zhixiang Zhang, Yu Wang, Yafei Gao
Summary: In this study, a micro-electrolysis system using iron-cetyltrimethylammonium chloride modified spent bleaching earth carbon was proposed for the removal of bromate from water. The study found that the Fe/SBE@C mass ratio, CTAC concentration, pH, and reaction atmosphere all had an impact on the efficiency of bromate removal. The research also revealed that CTAC modification and electrochemical reduction were the main mechanisms involved in bromate removal.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Environmental Sciences
Adriana Moral-Rodriguez, Roberto Leyva-Ramos, Esmeralda Mendoza-Mendoza, Paola E. Diaz-Flores, Damarys H. Carrales-Alvarado, Maria F. Alexandre-Franco, Carmen Fernandez-Gonzalez
Summary: The textural and physicochemical characteristics of commercial activated carbons have a significant impact on their adsorption capacity for ronidazole and diclofenac. Coconut AC and Wood AC exhibit the highest adsorption capacity for RNZ and DCF at pH=7. The adsorption mechanism is mainly driven by π-π stacking interactions, and the presence of acidic sites enhances the adsorption capacity. The adsorption of RNZ on Coconut AC is irreversible, while the adsorption of DCF on Wood AC is reversible.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Alison N. Roth, Yunhua Chen, Marquix A. S. Adamson, Eunbyeol Gi, Molly Wagner, Aaron J. Rossini, Javier Vela
Summary: This study presents a colloidal synthesis method for alkaline-earth chalcogenide nanocrystals using the reaction of metal carboxylates with carbon disulfide or selenourea. The particle sizes of the nanocrystals can be tuned by exploring the synthetic phase space, and the phase purity of the selenide compositions are confirmed using solid-state NMR spectroscopy. Additionally, barium di- and triselenides, rare nanocrystalline alkaline-earth polychalcogenides, are successfully synthesized using this method, and electronic structure calculations reveal their semiconducting properties.
Article
Geosciences, Multidisciplinary
Jiangwen Li, Banglin Luo, Bin Liu, Xihao Wei, Shouqin Zhong, Chaofu Wei
Summary: The ejection of surface soil particles caused by raindrops is a critical stage of water erosion. Soil with complex structural units, influenced by the arrangement of soil particles, cannot be accurately characterized by soil aggregate samples. In this study, undisturbed soil samples with a textural gradient were used to simulate rainfall experiments. The results show that the first 6 minutes of rainfall is the key period for particle ejection, and the clay-sized and fine-silt-sized particles are preferentially ejected. Changes in the soil surface condition, determined by soil texture, significantly affect the ejection characteristics of surface soil particles during splash erosion.
Article
Environmental Sciences
Yue Chen, Yahui Shi, Dongjin Wan, Jihong Zhao, Qiaochong He, Yongde Liu
Summary: The study demonstrated that the nano Fe-0/SBE@C + PS system showed excellent TCH removal efficiency under specific conditions, with optimal reaction conditions being 5% nano Fe-0 load, 0.2 g/L nano Fe-0/SBE@C dosage, initial pH of 3, and PS/TCH molar ratio of 100:1.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Food Science & Technology
Meenatai G. Kamble, Anurag Singh, Navneet Kumar, Rohini Dhenge, Massimiliano Rinaldi, Ajay Chinchkar
Summary: In this study, the thin-layer convective drying of plantain banana at different temperatures and slice thicknesses was investigated. The diffusion approach showed better applicability in predicting the moisture ratio during the drying process. Furthermore, there was a significant correlation between drying temperature, sample hardness, and process energy consumption.
Article
Engineering, Environmental
Jie Zhang, Yue Chen, Xue Song, Yongde Liu, Jihong Zhao, Feiyue Wang
Summary: In this study, spent bleaching earth (SBE) was modified and loaded with zero-valent iron (nZVI) to remove diclofenac (DCF) from water bodies. The removal efficiency of DCF reached a maximum of 87.0% under optimal conditions. Four possible degradation paths were inferred based on detected reaction intermediate products. The toxicity assessment showed that CTAB-SBE@C-nZVI can gradually dechlorinate DCF and reduce its toxicity. This study demonstrates the potential and environmental friendliness of using CTAB-SBE@C-nZVI for waste treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Engineering, Chemical
Alemayehu Bedane, Tianxiang Guo, Babak Shirani, Huining Xiao
Summary: Agricultural residues are widely available biomass resources that can be used to produce cost-effective activated carbons. The physical characteristics, such as surface area, pore size, and certain surface functionalities, of activated carbon are crucial for its applications in energy storage devices, CO2 reduction reactions, gas adsorption and separation, and water treatment. This review paper discusses the physical properties of activated carbons produced from different biomass sources using various methods. It also explores the effects of activation methods, biomass sources, and other parameters on the surface properties of activated carbon, including specific surface area and pore volume. Additionally, the differences in the characteristics of activated carbon made from different agricultural residues are evaluated, and the potential application of abundant agricultural residues for fabricating electrode materials for supercapacitors is discussed.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Jia Qiao, Rui-Nan Ci, Qi-Chao Gan, Cheng Huang, Zan Liu, Hui-Lan Hu, Chen Ye, Bin Chen, Chen-Ho Tung, Li-Zhu Wu
Summary: The activation of the alpha-C-H bond of ketones typically requires an amine and a directing group to guide the reaction selectivity in amine-catalysis carbonyl chemistry. Here, we report the first alpha-alkylation of cyclic ketones in the absence of an amine catalyst and directing group. A direct and selective activation of the inert alpha-C-H bond of ketones chelating on the surface of colloidal quantum dots is achieved, leading to the formation of an alpha-carbon radical intermediate. This transformation opens a new way for alpha-C-H functionalization of ketones in carbonyl chemistry.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Food Science & Technology
Narges Nadian, Mohammad Hossain Azizi, Hossein Abbastabar Ahangar, Aazam Aarabi
Summary: A study on creating low-calorie biscuits using quinoa flour, isomalt, and maltodextrin showed that the optimized biscuits had higher total phenolic compounds and nutritional value. In sensory evaluation, replacing wheat flour with quinoa flour was well-received. The optimized biscuits contained more protein and dietary fiber.
FOOD SCIENCE & NUTRITION
(2021)
Article
Chemistry, Multidisciplinary
Nishat Paul, Lecheng Zhang, Shijun Lei, Dali Huang, Ling Wang, Zhengdong Cheng, Minxiang Zeng
Summary: This study demonstrates the synthesis of shape-changing nanoparticles using an asymmetrical surface functionalization method. Contrary to the prevalent view of inorganic clays as inflexible, it is found that the halloysite particles can reversibly switch their shape state upon altering ligand-driven chemistry. Furthermore, this research provides a flexible morphology-controlled mechanism for developing self-propelled shape-shifting nanocollectors.
Article
Engineering, Environmental
Bai-Lin Liu, Yan-Wen Li, Li-Si Xie, Jing-Jie Guo, Lei Xiang, Ce-Hui Mo
Summary: This study investigated the sorption behaviors of microcystin-RR in different soils and identified the main factors affecting sorption. The results showed that the sorption followed pseudo-second-order kinetics and Freundlich model, and the linear distribution coefficients varied depending on soil properties. The sorption process involved various mechanisms such as electrostatic forces, cation exchange, and ligand exchange. The study provides important insights into the mobility potential of microcystins in terrestrial systems.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
Luqman H. Hashim, Ahmed Halilu, Yahaya Balarabe Umar, Mohd Rafie Bin Johan, Mohamed Kheireddine Aroua, Paramita Koley, Suresh K. Bhargava
Summary: This study focuses on the design and synthesis of highly active bifunctional catalysts for the conversion of furfural to furfuryl acetate. The catalysts with lower lattice strain exhibited higher catalytic activity.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
A. Arifutzzaman, Intan Najihah Musa, Mohamed Kheireddine Aroua, R. Saidur
Summary: In recent decades, capturing carbon has become a priority in addressing climate change. This paper explores the use of MXenes and activated carbon as CO2 adsorbents, evaluating their performance through various tests and analysis. The AC/MXene sandwich adsorbent showed the highest CO2 adsorption capacity with a significant improvement over AC. The results highlight the potential of emerging nanomaterials in large-scale CO2 capture applications.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Chemistry, Physical
Nadeem Hussain Solangi, Farihahusnah Hussin, Amna Anjum, Nizamuddin Sabzoi, Shaukat Ali Mazari, Nabisab Mujawar Mubarak, Mohamed Kheireddine Aroua, M. T. H. Siddiqui, Sundus Saeed Qureshi
Summary: Ionic liquids (ILs) are well-known for their CO2 capture properties. The combination of ILs with various materials reduces the problem of high viscosity of ILs. Encapsulated ionic liquid (ENIL) systems can overcome the low CO2 absorption rate and difficulties in solvent regeneration. This review comprehensively evaluates recent literature on ENILs for CO2 capture, including preparation, characterization, reaction kinetics, solubility, selectivity, and regeneration studies.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Nur Syahirah Mohamed Hatta, Farihahusnah Hussin, Lai Ti Gew, Mohamed Kheireddine Aroua
Summary: This study investigates the use of egg white as a surface modifier to enhance the adsorption capacity of palm shell activated carbon for CO2 capture. The adsorbent exhibits significant increase in CO2 uptake with the addition of 10 wt.% egg white. The introduction of amide functional group of egg white on the surfaces of activated carbon contributes to the enhanced CO2 adsorption capacity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Mohd Azlan Kassim, Nor Afifah Sulaiman, Rozita Yusoff, Mohamed Kheireddine Aroua
Summary: Carbon dioxide (CO2) absorption in a non-aqueous solution was investigated using a deep eutectic solvent (DES) of choline hydroxide and polyamines, combined with non-aqueous solvents such as sulfolane and dimethylsulfoxide (DMSO). The study found that the 2M ChOH:TETA-DMSO solution had the highest CO2 loading capacity among the tested solutions. The absorption capacity increased with pressure and decreased with temperature, indicating the potential of using a DES polyamine mixed with a non-aqueous solvent for CO2 capture.
Article
Green & Sustainable Science & Technology
Farihahusnah Hussin, Nur Nadira Hazani, Mohamed Kheireddine Aroua
Summary: The aim of this study was to prepare a carbon pellet with excellent surface properties for CO2 capture using low-cost material and a green process. A chemical activation method was introduced by modifying the pellet with potassium acetate to enhance its surface properties. The modified carbon pellet showed remarkable changes in surface morphology and increased CO2 adsorption capacity due to the presence of oxygen-containing functional groups. The results suggest that the carbon pellet modified with potassium acetate is suitable for CO2 adsorption.
Review
Chemistry, Multidisciplinary
Farihahusnah Hussin, Siti Aqilah Nadhirah Md Rahim, Mohamed Kheireddine Aroua, Shaukat Ali Mazari
Summary: Climate change and global warming are crucial environmental issues that require global action. Carbon capture technology and machine learning play important roles in reducing CO2 emissions and addressing climate change. Research and development in this field are crucial for future advancements and combating the challenges of climate change.
JOURNAL OF CO2 UTILIZATION
(2023)
Review
Chemistry, Applied
Farihahusnah Hussin, Nur Nadira Hazani, Munawar Khalil, Mohamed Kheireddine Aroua
Summary: This article provides a systematic review of hydrothermal technology and the life cycle assessment of hydrothermal biomass conversion. The study found that there is limited research on the environmental and economic impacts of hydrothermal biomass conversion, highlighting the need for environmental impact studies to demonstrate the benefits of biomass hydrothermal processing.
FUEL PROCESSING TECHNOLOGY
(2023)
Review
Engineering, Chemical
Kay Yi Chook, Mohamed Kheireddine Aroua, Lai Ti Gew
Summary: In this study, the advancements and breakthroughs in emerging biocatalysis reactor technologies over the past decade were documented. The focus was on the production of glycerides using enzyme biocatalysis. Reaction parameters and optimization strategies, such as temperature and residence time, were reviewed and discussed. The selection of reactor type and agitator was found to be crucial for enzyme activity. The conversion of enzymes from waste streams into functional products could enhance the sustainability of biocatalysis. This work serves as a stepping stone for the biocatalysis industry, providing a reference for those interested in exploring this field.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Environmental
Chee Yung Pang, Gulnaziya Issabayeva, Yean Ling Pang, Mee Chu Wong, Mohamed Kheireddine Aroua
Summary: The demand for zinc oxide increased significantly during the Covid-19 pandemic, as gloves became essential in daily life. This study successfully demonstrated the removal and recovery of zinc ions from real industrial wastewater, using an adsorption-desorption-chemical precipitation approach, to produce usable secondary zinc oxide.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Engineering, Electrical & Electronic
Md Shafiullah, Saidur Rahman, Binash Imteyaz, Mohamed Kheireddine Aroua, Md Ismail Hossain, Syed Masiur Rahman
Summary: The Southeast Asian region is increasingly interested in smart city initiatives, with a focus on promoting energy efficiency, reducing greenhouse gas emissions, and implementing renewable energy targets. However, challenges related to leadership, governance, citizen support, and investment, among others, arise in implementing smart energy systems. This article discusses the concept of smart cities, highlights different types of initiatives in Southeast Asian countries, and explores the challenges and potential solutions for implementing smart energy systems.
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)
