Article
Environmental Sciences
Hossein Mashhadimoslem, Ahad Ghaemi
Summary: This research focuses on predicting the adsorbed amount of N-2, O-2, and N2O on carbon molecular sieve and activated carbon using the artificial neural network (ANN) approach. Experimental isotherm data and different models were used to establish the neural network, achieving high prediction accuracy.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Ruthradharshini Murugavel, Ali A. Rownaghi, Fateme Rezaei
Summary: This study investigated the effect of light alkali metal functionalization on the H-2 storage performance of carbon adsorbents. The results showed that Li-doped carbon materials achieved a gravimetric uptake of 2.8 wt% at room temperature and 100 bar pressure.
Article
Nanoscience & Nanotechnology
Pamela Ramirez-Vidal, Rafael L. S. Canevesi, Giuseppe Sdanghi, Sebastien Schaefer, Gael Maranzana, Alain Celzard, Vanessa Fierro
Summary: This study investigated hydrogen adsorption on six commercial activated carbons under different temperature and pressure conditions. The authors found that the use of nonlocal density functional theory provided a more accurate prediction of hydrogen adsorption capacity. The relationship between hydrogen adsorption capacity and surface properties of activated carbons was established, and different parameters were identified for evaluating the best activated carbon for hydrogen storage or compression.
ACS APPLIED MATERIALS & INTERFACES
(2021)
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
Environmental Sciences
Jose Carlos Alexandre de Oliveira, Paulo Ricardo Moura Rodrigues, Sebastiao Mardonio Pereira de Lucena
Summary: This study utilized molecular simulation and the representative pores method to predict the adsorption of phenol and related compounds on activated carbon with different pore sizes. The results showed the most effective pore sizes for adsorption and provided a predictive model for carbon selection and synthesis.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Qiuyun Pu, Jirui Zou, Junya Wang, Shijian Lu, Ping Ning, Liang Huang, Qiang Wang
Summary: In this study, biomass wastes were used to prepare activated carbons with high micropore percentage for CO2 capture. The AC derived from walnut shells showed superior CO2 uptake, and the micropore percentage was found to have a significant influence on the CO2 capture performance of AC.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Jinjin Li, Xiuwei Ma, Hao Wu, Linjun Yang
Summary: The study shows that activated carbons treated by heat have better adsorption performance for low-concentration VOCs under high humidity, exhibiting greater selectivity. CAC-1 samples have more graphitic content and lower acidic groups, leading to higher toluene diffusion rates and stronger hydrophobic interactions.
Article
Engineering, Environmental
Luan de Souza Leite, Maria Teresa Hoffmann, Fabio Simoes de Vicente, Danilo Vitorino dos Santos, Luiz Antonio Daniel
Summary: The traditional bituminous activated carbon showed the best performance for AOM removal, followed by babassu coconut activated carbon. Additionally, significant reductions in trihalomethanes formation potential were achieved.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The current research focuses on characterizing and comparing the physiochemical properties of seven commercially available activated carbons (ACs) as adsorbents for CO2 capture. The study found that the selected ACs have high micro and ultra-micro porosity, making them suitable for post-combustion CO2 capture. The study also estimated important thermodynamic properties of adsorption and confirmed that the selected ACs are suitable for various gas sorption applications.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Construction & Building Technology
Ruiyan Zhang, Lingjie Zeng, Fei Wang, Xiaoying Li, Zhenhai Li
Summary: Activated carbon is commonly used to capture gaseous pollutants from indoor air. This study investigated the adsorption behavior of activated carbon in an indoor environment by measuring the benzene adsorption capacities of 11 commercial activated carbons. The results showed a strong correlation between the pore characteristics of activated carbons and their benzene adsorption capacities, suggesting the feasibility of predicting adsorption equilibrium using pore characteristics.
BUILDING AND ENVIRONMENT
(2022)
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The research focuses on characterizing and comparing seven commercially available activated carbons as adsorbents for CO2 capture, revealing their suitability for various gas sorption applications and providing valuable properties for actual system design.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Review
Environmental Sciences
Nada Abuelnoor, Ahmed AlHajaj, Maryam Khaleel, Lourdes F. Vega, Mohammad R. M. Abu-Zahra
Summary: In an effort to reduce excessive anthropogenic CO2 emissions, various CO2 capture technologies have been developed, with activated carbon being a promising option. Derived from agricultural waste and biomass, activated carbon can be enhanced for CO2 capture through different preparation methods and functionalization, making it suitable for industrial applications like wastewater treatment.
Article
Environmental Sciences
Sergio Acevedo, Liliana Giraldo, Juan C. Moreno-Pirajan
Summary: This study examines the adsorption kinetics of activated carbon (AC) adsorbent materials produced from a by-product of African palm processing. The textural characteristics of the adsorbent solids were determined through N-2 physisorption, revealing BET areas between 721 and 1334 m(2)g(-1) and micropore volumes between 0.33 and 0.55 cm(3)g(-1). FTIR was used for chemical characterization, and CO2 adsorption was measured, showing values between 175 and 274 mg·g(-1). The kinetic study suggests that the intraparticle diffusion model best describes the physisorption process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Hua Wang, Wencheng Wang, Song Zhou, Xuchun Gao
Summary: In order to guide the selection of woody-activated carbon for the treatment of Cr(VI)-containing wastewater, adsorption tests were conducted on two varieties of commercial woody-activated carbon powder. The physicochemical properties and structural characteristics of the activated carbon were studied, and the factors affecting the removal of hexavalent chromium were investigated. The results showed that both types of woody-activated carbon have microporous and mesoporous structures, with different adsorption capabilities depending on the concentration of Cr(VI).
Article
Chemistry, Multidisciplinary
Prabhu Azhagapillai, Ahmed Al Shoaibi, Srinivasakannan Chandrasekar
Summary: Different functionalization methodologies have varying effects on the surface modification of porous carbon and its efficacy for benzene adsorption, with surface-modified carbon showing better performance at higher benzene concentrations.
Article
Chemistry, Physical
Wenting Lin, Yaping Song, Li Wang, Nan Li, Yanghe Fu, De-Li Chen, Weidong Zhu, Fumin Zhang
Summary: In this study, Pd/Ce-MOF-801 catalyst was prepared using an incipient wetness impregnation strategy and its physicochemical properties were investigated. The results showed that Pd/Ce-MOF-801 exhibited high catalytic performance in the Suzuki-Miyaura cross-coupling reaction and had good recyclability and tolerance to various substrates.
Article
Environmental Sciences
Yuexian Du, Guang'an Jie, Huilin Jia, Jiahui Liu, Jieyu Wu, Yanghe Fu, Fumin Zhang, Weidong Zhu, Maohong Fan
Summary: The photocatalytic technology of reducing CO2 into high value-added chemicals and fuels can mitigate energy shortages and environmental problems caused by greenhouse effects. This study successfully improved the photocatalytic performance of Zr-MOF for CO2 reduction by covalent modification, demonstrating the potential of modifying MOFs to enhance the photocatalytic efficiency of CO2 reduction.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Yu Zhao, Saikat Das, Taishu Sekine, Haruna Mabuchi, Tsukasa Irie, Jin Sakai, Dan Wen, Weidong Zhu, Teng Ben, Yuichi Negishi
Summary: The unique structural characteristics of three-dimensional (3D) covalent organic frameworks (COFs) make them promising platforms for various functional applications. In this study, we successfully designed and synthesized a 3D non-interpenetrated stp net COF named TUS-64 with the largest pore size and record-low density. TUS-64 exhibits high stability and a highly interconnected mesoporous structure, enabling efficient drug loading and controlled release in a simulated body fluid environment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yaping Song, Ruifang Xue, Li Wang, Nan Li, Zhijun Fang, Yanghe Fu, De-Li Chen, Weidong Zhu, Fumin Zhang
Summary: A chemoselective reductive heterocyclization route is used for direct synthesis of 2,1-benzisoxazole and related compounds. The transformation of feedstocks using hydrogen as a hydrogen source at ambient temperature and atmospheric pressure remains a challenge.
Article
Chemistry, Physical
Nan Li, Changping Jian, Yaping Song, Li Wang, Ata Ur Rehman, Yanghe Fu, Fumin Zhang, De-Li Chen, Weidong Zhu
Summary: Here, a facile and scalable approach for synthesizing Fe-based MOF MIL-88A(Fe) via a liquid-phase route at atmosphere pressure is reported. The synthesized MIL-88A(Fe) nanocrystals exhibit high crystallinity, monodispersed particle size, and large specific surface area. These nanocrystals serve as a heterogeneous catalyst for the efficient aerobic oxidation of cyclohexene to 2-cyclohexene-1-ol with high conversion (81%) and selectivity (70%). The reaction mechanism involves both free radical and Fe-mediated pathways.
MOLECULAR CATALYSIS
(2023)
Article
Engineering, Environmental
Yaping Song, Rou Guo, Binbin Feng, Yanghe Fu, Fumin Zhang, Yifei Zhang, De-Li Chen, Jiangwei Zhang, Weidong Zhu
Summary: A facile strategy to modulate the coordination number of Zn single atoms and enhance the catalytic activity for transfer hydrogenation was reported. The Zn-N3 coordination in the catalyst exhibited the best performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Ke Guo, Ijaz Hussain, Guang'an Jie, Yanghe Fu, Fumin Zhang, Weidong Zhu
Summary: This review discusses the recent breakthroughs in photocatalytic CO2 reduction, focusing on the use of metal-organic frameworks (MOFs) as new catalysts. Various techniques for modifying MOFs and integrating them with other materials have been explored and summarized. The challenges and future prospects of MOFs as photocatalysts for CO2 reduction are also discussed.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Energy & Fuels
Ata Ur Rehman, Tianyu Zhao, Ihsan Muhammad, Shehla Rasheed, Rahim Shah, Adnan Raza Altaf, Fumin Zhang, Sining Yun
Summary: Researchers synthesized a new MgCl2/MXene (Ti3C2Tx) composite sorbent for low-temperature thermochemical heat storage through the impregnation method. Various techniques were used to characterize the mechanical and thermal properties of the MgCl2/MXene composites. The results showed that the MXene-based composites exhibited improved adsorption properties and cyclic stability compared to pure MgCl2. The water sorption kinetics and energy storage density of the composites were also evaluated, indicating their potential for long-term heat storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Huilin Jia, Baihui Zhu, Xiaoyan Zhi, Yuexian Du, Jiahui Liu, Guang'an Jie, Yanghe Fu, Rui Ma, Fumin Zhang, Weidong Zhu
Summary: As a new type of porous organic materials, two-dimensional covalent organic frameworks (2D COFs) show superior visible-light harvesting and effective separation and transport of the photogenerated charges, which ensures COFs to be promising platforms for photocatalysis. In this study, two 2D imine-linked COFs (PDA-TAB and PDA-TTA) were synthesized to investigate the effects of the introduced triazine units in the skeleton of COFs on photocatalytic CO2 reduction. The results showed that PDA-TTA exhibited a much higher photocatalytic activity compared to PDA-TAB, with a HCOOH yield of 65.7 mu mol g(cat)(-1)h(-1). Further studies indicated that the introduction of triazine units in the skeleton of PDA-TTA not only enhanced the visible-light absorption but also promoted the charge separation and migration, thereby improving the photocatalytic performance. This work contributes to the understanding of the roles of key structural units in 2D COFs in photocatalysis and provides insights for the development of efficient photocatalysts for CO2 conversion.
Article
Chemistry, Physical
Yuexia Wang, Qibin Yao, Bowen Xu, Kehang Lin, Mengshan Deng, Xinqing Lu, Rui Ma, Yanghe Fu, Weidong Zhu
Summary: The acid-modulated isomorphous substitution method is developed to synthesize Ti-MWW zeolite without extra-framework octahedral Ti species, leading to higher ethylene glycol (EG) yield and H2O2 utilization efficiency compared to the prevailing methods. The Ti-MWW zeolite prepared by this method has more open Ti(OSi)3OH sites, resulting in stronger Lewis acidity, which is beneficial for EG production. Moreover, the catalyst is recyclable after regeneration by high-temperature calcination, indicating its potential industrial application in the one-pot synthesis of EG from ethylene with H2O2.
JOURNAL OF CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Jie Chen, Mingyuan Jian, Lei Zhuang, Wenting Lin, Yanghe Fu, De-Li Chen, Weidong Zhu, Guihua Chen, Fumin Zhang
Summary: A series of N-doped porous carbon-supported CeO2 and ZrO2 nanoparticle catalysts were prepared, and CeZr-NC-1073 showed outstanding catalytic activity and stability.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Weilong Hou, Kehang Lin, Xiangyu Zhang, Bowen Xu, Yuexia Wang, Xinqing Lu, Yijing Gao, Rui Ma, Yanghe Fu, Weidong Zhu
Summary: This study developed efficient catalysts for nonoxidative propane dehydrogenation (PDH) and demonstrated that the stability and selectivity for propylene of the catalysts were significantly enhanced. The catalysts also showed no sintering at high temperatures, providing a strategy for practical applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
