Article
Engineering, Chemical
Karolina Kielbasa, Joanna Srenscek-Nazzal, Beata Michalkiewicz
Summary: The focus of the study was on modifying commercial activated carbons to increase their porosity and CH4 capture potential. Experimental results showed that modified activated carbons had a higher CH4 adsorption capacity at 25 degrees C and 35 bar pressure, with a good fit using the Sips equation.
Article
Chemistry, Multidisciplinary
Beatriz Matos, Mary Batista, Joao Pires
Summary: In the face of global warming and the energy crisis, it is crucial to reduce the emissions of greenhouse gases like CO2 and CH4 and recycle biomethane from landfill biogas. This study demonstrates the potential of converting glycerol, a by-product of biodiesel production, into activated carbon using potassium acetate as an activating agent. The activated carbon exhibits high adsorption capacities for CO2 and CH4, with selectivity values that enable effective separation. Additionally, the study finds that the CO2 emissions produced during activated carbon synthesis can be easily neutralized through their use in small biogas production units.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Food Science & Technology
Yuanhao Zhou, Bingyu Zhao, Lingxuan Wang, Ting Li, Hong Ye, Shuangyang Li, Mingquan Huang, Xianren Zhang
Summary: Ethanol has significant effects on the adsorption of phthalate acid esters on activated carbon, especially in alcoholic solutions where increasing ethanol content can lead to decreased adsorption capacity and the formation of water-ethanol-DBP clusters. Shorter chain PAEs are more affected by ethanol presence, with distances between DBP and activated carbon increasing as ethanol content rises. The adsorption of PAEs on activated carbon has important implications for Baijiu flavors, as demonstrated in application results with actual samples.
Article
Engineering, Environmental
Monika Chaudhary, Suhas, Randhir Singh, Inderjeet Tyagi, Jahangeer Ahmed, Shubham Chaudhary, Sarita Kushwaha
Summary: The study investigated the influence of different functional groups on the adsorption process, revealing that the nature of the groups affects the adsorption efficiency. Additionally, the adsorption of dyes on activated carbon was found to increase with temperature, indicating a potential for utilizing porous carbons for treatment of wastewater containing dyes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Engineering, Environmental
Linlong Yu, Muhammad Faizan Khan, Gopal Achari
Summary: Sulfolane, an organic solvent used in petrochemical industries, has been reported to contaminate ground and surface waters around gas processing plants in North America. Traditional biological treatment methods require longer time and environmental factors, leading to the development of abiotic technologies such as advanced oxidation processes and activated carbon adsorption for faster and more effective removal of sulfolane from contaminated water.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Analytical
Runzhen Lai, Jun Hu, Yahui Sun, Ping Lu
Summary: Activated carbons (AC) were prepared from lignocellulosic biomass by H3PO4 activation. AC from carbohydrates, especially xylan, showed higher-developed porous structure and more active functional groups. AC-X displayed the highest adsorption capacity for methylene blue and other heavy metals.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Environmental Sciences
Min Hu, Wenhao Wu, Daohui Lin, Kun Yang
Summary: In this study, a mesopore-rich activated carbon (KAC) with high surface area was used as an adsorbent to investigate the adsorption of fulvic acid (FA). The results showed that KAC exhibited better adsorption capacity for FA compared to previous studies on biochars (BCs) and activated carbons (ACs), and the negative pH effect on adsorption performance was also weaker. Additionally, KAC was capable of adsorbing FA fractions with various molecular weights, higher aromaticity, and higher polarity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Multidisciplinary
Muhammad Sajid, Sineen Bari, Muhammad Saif Ur Rehman, Muhammad Ashfaq, Yin Guoliang, Ghulam Mustafa
Summary: This study successfully removed paracetamol from water using activated carbon derived from Cannabis Sativum Hemp. The results showed that the Cannabis Sativum Hemp is an efficient, cheap, and sustainable feedstock for the manufacturing of activated carbon for the efficient removal of paracetamol from an aqueous system.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Ze-Kai Gu, Chuan-Yong Zhu, Zhao-Qin Huang, Ming-Hai Xu, Liang Gong
Summary: The study found that functional groups on the surface of activated carbon increase the adsorption heat and capacity of aromatics at low pressures, while an increase in density decreases the saturation adsorption capacity and pressure. The molecular diameter and mesopore size of aromatics also significantly affect adsorption behavior.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Environmental Sciences
Yanan Chen, Yunkun Qian, Jiaxin Ma, Mengjun Mao, Linping Qian, Dong An
Summary: This study systematically evaluated the concurrent adsorption of humic acid (HA) and hexavalent chromium (Cr(VI)) by powdered activated carbon (PAC) in water. It was found that the presence of humic acid significantly enhanced the adsorption of both HA and Cr(VI). The promotion effect of humic acid on Cr(VI) removal was found to decrease with increasing pH. The cooperative adsorption mechanism was attributed to the formation of Cr(VI)-HA and Cr(III)-HA complexes that were readily adsorbed on the PAC surfaces.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
Jorge Fortea, Lucia Garcia, Joaquin Ruiz, Miriam Oliva, Jesus Arauzo
Summary: The study investigated the adsorption of glycerol conversion compounds onto activated carbon, with acetol showing the highest adsorption. The properties of both the adsorbate and adsorbent play an important role in determining the adsorption efficiency.
Article
Chemistry, Multidisciplinary
Karolina Kielbasa
Summary: An innovative and cost-effective method for enhancing CO2 capture by modifying the textural properties of activated biocarbons was explored. The synthesis process involved hydrothermal synthesis of carbonaceous materials from molasses followed by chemical activation. The results showed a significant correlation between CO2 adsorption and the textural properties of the activated biocarbons.
FRONTIERS IN CHEMISTRY
(2023)
Article
Engineering, Environmental
Xin Huang, Mengze Geng, Kaiyun Wang, Yitian He, Guiwei Li, Chenghong Feng, Baoyou Shi
Summary: Residual aluminum from coagulants has a significant impact on the performance of granular activated carbon (GAC) filters, leading to aluminum accumulation and reduced surface area of GAC, thereby affecting the removal of dissolved organic matter.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zhang Juan, Zhong Yongke, Zhou Yaping, Zhang Qingyun, Wang Siyu
Summary: The presence of acid groups on modified activated carbon positively influences the adsorption capacity of albumin-bound bilirubin while significantly reducing mesopores, but both acid groups and mesopores contribute to the increase in adsorption capacity of free bilirubin.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Energy & Fuels
Raphael Rodrigues, Mikaela S. Santos, Renan S. Nunes, Wagner A. Carvalho, Georgia Labuto
Summary: Chemically activated carbons derived from yeast biomass waste were modified with HNO3 to enhance surface acid features for application as catalysts in solvent-free solketal production, achieving high glycerol conversion rates and selectivity towards solketal with remarkable efficiency in consecutive runs. Characterization of the activated carbons was done through various techniques including N2 adsorption/desorption, thermal analysis, elemental analysis, surface functional group titration (Boehm titration), X-ray diffraction, and Raman spectroscopy.
Article
Chemistry, Physical
Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna
Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li
Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan
Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou
Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang
Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Review
Chemistry, Physical
Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang
Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao
Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon
Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee
Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey
Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang
Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere
Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock
Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang
Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)
Article
Chemistry, Physical
Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li
Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.
JOURNAL OF MATERIALS CHEMISTRY A
(2024)