Article
Engineering, Environmental
Mingke Luo, Xia Jiang, Yongli Liu, Yaqing Liu, Hui Yu, Yuan Niu, Xiaofan Meng, Liang Wang, Yong Niu
Summary: This study comprehensively investigated the adsorption capacity and pollutant removal mechanisms of modified biochar. The experimental results showed that the adsorption capacity of biochar increased with the electron-withdrawing ability of the grafted functional groups. -NO2 group was successfully grafted onto cellulose, and the maximum adsorption capacity was found to be 158.73 mg/g. The study also demonstrated that the modified biochar exhibited good stability and regeneration properties in acidic, alkaline, and oxidizing environments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Lijian Leng, Renfeng Liu, Siyu Xu, Badr A. Mohamed, Zequn Yang, Yingchao Hu, Jiefeng Chen, Shilin Zhao, Zhibin Wu, Haoyi Peng, Hui Li, Hailong Li
Summary: Biochar is a solid material obtained from the pyrolytic carbonization of biomass in an oxygen-free/limited environment. Sulfur-containing biochar has a wide range of applications, such as adsorptive removal of pollutants (e.g., Hg, Cd, and Ni) and acting as a solid acid catalyst or as an electrode of Li-S battery. To date, many methods have been developed to strengthen the function of biochar by introducing sulfur-containing groups to promote the application and commercialization of biochar.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Engineering, Environmental
Lichun Dai, Qian Lu, Haiqin Zhou, Fei Shen, Zhengang Liu, Wenkun Zhu, Huagang Huang
Summary: Biochar has gained attention in water pollution control due to its tunable physico-chemical properties, especially the oxygenated functional groups (OFGs) which act as key active sites for pollutant removal through adsorption and redox reactions. Various strategies for tuning OFGs on biochar have been explored, such as in-situ and ex-situ oxidation, as well as grafting carboxyl groups via reactions like cycloaddition/acylation, leading to enhanced performance in pollutant removal.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Agricultural Engineering
Qin Liu, Dongmei Li, Hairong Cheng, Jianhua Cheng, Kesi Du, Yongyou Hu, Yuancai Chen
Summary: This study successfully prepared phosphorus-containing biochar (PBC) from discarded Camellia oleifera shells for efficient removal of tetracycline (TC), showing superior adsorption capacity and environmental adaptability. Mechanisms underlying TC adsorption by PBC were elucidated, and its ability to meet the discharge standard of China was demonstrated.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Shunli Wan, Yan Li, Shuo Cheng, Guowei Wu, Xuan Yang, Yu Wang, Liangmin Gao
Summary: Metallic oxide nanoparticles anchored in biochar can be effectively used for water treatment, with the size of the nanoparticles affecting the adsorption performance of the composites. By fabricating charged biochar with high-density negatively charged groups, the adsorption of Cd(II) onto the composites was greatly enhanced. This study provides valuable insights for the development of highly efficient biochar-based composites for water decontamination.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Energy & Fuels
Jinzhang Jia, Yumo Wu, Dan Zhao, Bin Li, Dongming Wang, Fengxiao Wang
Summary: To understand the mechanism of gas adsorption by different functional groups in coal, a slit-pore model and modified fragment model were developed using Materials Studio software. The study revealed the adsorption characteristics and performance of seven different functional groups on CH4/CO2/N2 gases. The results showed that the electrophilic and nucleophilic abilities of the functional groups varied, and the adsorption capacity was influenced by both gas properties and functional group structure.
Article
Environmental Sciences
Yunpeng Zhang, Bingjie Zhang, Jingyang Yu, Meng Yuan, Jiawen Ji, Huizhe Lu, Yongqiang Ma, Yunlong Guo
Summary: Pesticide residues have caused serious damage to the environment and social security. The efficient functional biochar prepared here is able to quickly and effectively remove sulfonylurea herbicides from water, with over 95% adsorption rate.
Review
Chemistry, Multidisciplinary
Xue-Fei Tan, Shi-Shu Zhu, Ru-Peng Wang, Yi-Di Chen, Pau-Loke Show, Feng-Fa Zhang, Shih-Hsin Ho
Summary: Biochar is widely used as an efficient adsorbent for aromatics-based contaminants due to its easy preparation and high sustainability. The surface properties of biochar vary greatly, with specific surface area and pore volume/size affecting the adsorption of aromatics. The influence of surface functional groups (SFGs) on aromatics adsorption remains unclear, but potential relationships between SFGs and adsorbates have been explored in this study.
CHINESE CHEMICAL LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Kui Dong, Zhiwei Zhai, Aijun Guo
Summary: The study systematically investigated the influence and mechanism of pore parameters and functional groups on the adsorption of CO2 and CH4 in different rank coals. The results showed that changing functional groups can affect pore structure differently, and various functional groups have different impacts on adsorption capacity, with small-diameter pores and -C2O showing strong adsorption capacity.
Review
Chemistry, Inorganic & Nuclear
Dopil Kim, Minjung Kang, Hyeonbin Ha, Chang Seop Hong, Min Kim
Summary: Metal-organic frameworks (MOFs) are emerging materials with fine tunability, making them a good platform for target-specific utilization. Various functional groups can be introduced onto the organic ligands, and positional isomerism can help elucidate the effects of each substituent on the linkers.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Analytical
Wenran Gao, Zixiang Lin, Haoran Chen, Shanshan Yan, Haonan Zhu, Hong Zhang, Hongqi Sun, Shu Zhang, Shoujun Zhang, Yinlong Wu
Summary: The degree of graphitization and surface functional groups play crucial roles in the adsorption of phenol by N-doped activated biochar. Increasing the doping ratio reduces the adsorption capacity of phenol due to the decrease in surface oxygen content and graphitization degree. Different surface functional groups have varying degrees of beneficial effects on the adsorption of phenol, with N-5-pyrrolic and N-Q groups being the most important.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Nanoscience & Nanotechnology
Yaguang Peng, Yuxi Zhang, Qiang Tan, Hongliang Huang
Summary: By introducing bioinspired moiety phytic acid (PA), we created an efficient uranium ion trap PCN-222-PA with high uptake capacity and excellent recyclability, providing a new perspective for uranium extraction from aqueous solutions.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Dan Zhao, Xiaoqing Liu
Summary: Through DFT simulations, the adsorption mechanism of H2O, CO2, and CH4 molecules on oxygen-containing functional groups in coal molecules was investigated. It was found that the -COOH functional group had the strongest bonding with H2O molecules and the highest adsorption capacity for all three molecules.
Article
Chemistry, Physical
Xuetao Liang, Niandong Guo, Yujie Zhao, Fenglan Xue, Xinru Ren, Zhilin Yang, Qi Yang
Summary: The purpose of this study is to clarify the mechanism of P-doped biochar adsorbing pesticide pollutants such as 2,4-D in aqueous solution. The characteristics of biochar, including surface functional groups, specific surface area and porosity, play a crucial role in the adsorption of 2,4-D. The incorporation of P species in biochar regulates its electronic structure and surface charge distribution.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Lingyu Cao, Xueyang Zhang, Yue Xu, Wei Xiang, Rui Wang, Fangjun Ding, Pizheng Hong, Bin Gao
Summary: This study found that wood biochar has better adsorption performance and higher CO2 adsorption capacity than straw biochar, due to its advanced pore structure. Linear correlation analysis showed that CO2 adsorption is controlled by both specific surface area and basicity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Rene A. Silva, Yahui Zhang, Kelly Hawboldt, Lesley Anne James
Summary: This study highlights the potential of ion exchange resins with methyl-glucamine and amidoxime groups for successful removal of Fe(III) from synthetic Ni(II) leach liquor, presenting them as promising alternatives to traditional Fe precipitation processes in the base metal industry.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2021)
Article
Nanoscience & Nanotechnology
Ghadeer F. Abu-Alsoud, Kelly A. Hawboldt, Christina S. Bottaro
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Energy & Fuels
A. Krutof, K. A. Hawboldt
Article
Chemistry, Applied
Tobias M. Brueckner, Peter G. Pickup, K. A. Hawboldt
FUEL PROCESSING TECHNOLOGY
(2020)
Article
Energy & Fuels
Salman Jalalifar, Rouzbeh Abbassi, Vikram Garaniya, Fatemeh Salehi, Sadegh Papari, Kelly Hawboldt, Vladimir Strezov
Article
Biochemical Research Methods
Ghadeer F. Abu-Alsoud, Kelly A. Hawboldt, Christina S. Bottaro
JOURNAL OF CHROMATOGRAPHY A
(2020)
Article
Polymer Science
Courtney M. Laprise, Kelly A. Hawboldt, Francesca M. Kerton, Christopher M. Kozak
Summary: Waste-derived fish oil can be epoxidized and reacted with CO(2) to produce a cyclic carbonate containing material, which can further lead to the formation of nonisocyanate polyurethane materials when reacted with a bioderived amine. The synthesized products are characterized using various spectroscopic and analytical techniques. This process provides a sustainable solution for waste management by utilizing underutilized resources to produce valuable materials.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Environmental Sciences
Weiyun Lin, Baiyu Zhang, Xudong Ye, Kelly Hawboldt
Summary: Colloid-enhanced ultrafiltration (CEUF), including micellar-enhanced ultrafiltration (MEUF) and polymer-enhanced ultrafiltration (PEUF), has shown promising potential in removing sulfate ions from aqueous solutions. PEUF has advantages over MEUF in terms of higher retention, cleaner effluent, and higher adsorption capacity, but faces challenges of severer flux decline and membrane fouling. Membranes with higher molecular weight cut-off can be used to overcome these disadvantages.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Food Science & Technology
Sara Ahmadkelayeh, Kelly Hawboldt
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2020)
Article
Engineering, Chemical
Abdulhaqq Ibrahim, Kelly Hawboldt, Christina Bottaro, Faisal Khan
Summary: The nature of the chemical environment in oil and gas fluids, such as produced water and soured oil, plays a crucial role in microbiologically influenced corrosion. The study investigates the effects of sulphide and nitrite chemistry on the corrosion potential and microbial relationships within the system. Equilibrium and kinetic models provide insights into the formation of corrosion products and the impact of nitrate on the system's chemistry and microbial activity.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Energy & Fuels
Mahsan Basafa, Kelly Hawboldt
Summary: Residues from biomass processing/harvesting can be converted to high-value chemicals and fuels through pyrolysis. Pyrolysis oils derived from lignocellulosic biomass, particularly hemp residues, have potential as sources of bio-phenols. The extraction and recovery of phenolic compounds from pyrolysis oils require further investigation for optimizing pre-treatment, extraction, and analytical techniques. Considerable progress has been made in producing cost-effective renewable phenolic resins, but challenges remain in achieving satisfactory quality and low cost.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Chemical
Bahareh Moshtagh, Kelly Hawboldt, Baiyu Zhang
Summary: This study demonstrates the cost-effective production of biosurfactants using waste substrates and optimized cultural conditions. By using waste cooking oil as the sole carbon source, a biosurfactant with high stability in thermal, pH, and salinity conditions was successfully produced. The combination of indigenous bacteria and no-cost carbon sources from waste shows great promise in reducing production costs and producing biosurfactants tailored for harsh environments like the North Atlantic.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Sara Ahmadkelayeh, Sukhinder Kaur Cheema, Kelly Hawboldt
Summary: This study provides a comprehensive analysis of lipid and astaxanthin distributions in shrimp by-products, revealing that the lipid extracts are rich in beneficial fatty acids and phospholipids. The pretreatment to remove water decreases lipid yield but increases astaxanthin yield and quality.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Bahareh Moshtagh, Kelly Hawboldt, Baiyu Zhang
Summary: Costs associated with production of biologically produced surfactants remain a significant obstacle to large scale application, but can be reduced by using industrial wastes and optimizing cultural conditions; Developing a bioprocess model for biosurfactant production can improve the design and monitoring of commercial processes.
CHEMICAL PRODUCT AND PROCESS MODELING
(2022)
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.
