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Adsorption of benzene and toluene from waste gas using activated carbon activated by ZnCl

Leila KARIMNEZHAD,Mohammad HAGHIGHI,Esmaeil FATEHIFAR

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 835-844 doi: 10.1007/s11783-014-0695-4

Abstract: A series of activated carbons with high surface area were prepared from walnut shell using chemical activation with ZnCl . In this research the carbonization stage was carried out at 500°C. The performance of the synthesized carbons evaluated in adsorption of benzene and toluene from waste gas. The influence of impregnation ratio on the characteristics of synthesized activated carbons as well as their adsorption capacity was investigated. The ratio of activation agent to walnut shell was selected in the range of 0.5–2.0 wt/wt. The synthesized activated carbons were characterized using XRD, SEM, BET and FTIR techniques. The highest activated carbon production yield was obtained at impregnation ratio of 1.5 wt/wt. The XRD analysis illustrated that peaks intensity decreased with increasing impregnation ratio showing that amorphous property of samples was increased. The SEM analysis revealed successful pore development in synthesized activated carbons obtained at high impregnation ratios. The surface area of the activated carbons increased with increasing impregnation ratio and its maximum value reached 2643 m ?g at impregnation ratio of 2/1. FTIR analysis indicated that the relative amount of different acidic surface groups on synthesized carbons was a function of impregnation ratio. Experimental results for benzene and toluene adsorption showed a high potential of employing synthesized impregnated activated carbon for treatment of waste gas. Generally, the amount of VOC adsorbed on the surface was affected by physicochemical properties of synthesized activated carbons.

Keywords： Chemical activation     activated carbon     textural characterization     adsorption     benzene     toluene    

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Effect of textural property of coconut shell-based activated carbon on desorption activation energy of

YU Moxin, LI Zhong, XI Hongxia, XIA Qibin, WANG Shuwen

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 269-275 doi: 10.1007/s11705-008-0056-6

Abstract: In this work, the effect of the textural property of activated carbons on desorption activation energyBET surface areas and the textural parameters of three kinds of the activated carbons, namely SY-6, SYThe influence of the textural property of the activated carbons on desorption activation energy and the

Keywords： diameter     adsorption isotherm     ASAP     SY-19 >     activated    

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Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 135-145 doi: 10.15302/J-FASE-2017143

Abstract: Knowledge of the spatial distribution of soil textural properties is important for determining soil moistureCombining maps using temporal stability analysis gives the clearest image of the textural difference.

Keywords： soil electrical conductivity     soil texture mapping     temporal stability analysis    

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Mechanism and characterization of microplastic aging process: A review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1700-6

Abstract:

● Methods for estimating the aging of environmental micro-plastics were highlighted.

Keywords： Microplastics     Aging     Degradation     Characterization     Mechanism    

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An experimental characterization of human torso motion

Daniele CAFOLLA,I-Ming CHEN,Marco CECCARELLI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 311-325 doi: 10.1007/s11465-015-0352-z

Abstract:

The torso plays an important role in the human-like operation of humanoids. In this paper, a method is proposed to analyze the behavior of the human torso by using inertial and magnetic sensing tools. Experiments are conducted to characterize the motion performance of the human torso during daily routine operations. Furthermore, the forces acting on the human body during these operations are evaluated to design and validate the performance of a humanoid robot.

Keywords： experimental biomechanics     human torso     analysis     inertial sensor     characterization    

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Synthesis and characterization of norfloxacin biomonomer

Shengxiong DONG, Qiaoping CHEN, Hongfang XIE, Jianhua HUANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 55-59 doi: 10.1007/s11705-010-0537-2

Abstract: A novel drug agent named norfloxacin biomonomer was developed in order to solve the problem of low drug content, uneven drug distribution, low molecular weight, and wide molecular weight distribution of polymer drug, based on polyurethane, which was used as an antibacterial agent to control the bacterial infection associated with biofilm formation on polymeric materials used in biologic environments. In this research, norfloxacin biomonomer was synthesized by esterifying the compound of norfloxacin. High-performance liquid chromatography system was used to analyze the purity of the final product and intermediate products, and Fourier transform infrared spectrometer and mass spectrum were used to verify the final product and intermediate products. The results showed that the objective product was developed successfully. The final product of norfloxacin biomonomer could be incorporated into the polyurethane as chain extender.

Keywords： norfloxacin     biomonomer     synthesis     characterization    

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Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 12-12 doi: 10.1007/s11783-021-1446-y

Abstract: Plastics continues to have a critical and essential role in human society such as food packing, product packages and building materials. In the meantime, it has been recognized as a global sustainability priority to study and mitigate pollution of plastics and the associated unknown impacts from ultrafine plastic particles. Microplastic (<5 mm) particles, for instance, have been detected in the aquatic environment globally and have raised scientific interests and environmental concerns. Microplastics (MPs) can enter rivers through a variety of pathways (e.g., wastewater effluent, breakdown of plastic debris) and can negatively impact aquatic organisms through both direct injection with food and indirect contamination from absorbed toxins. MPs can absorb heavy metals, pathogens, and organic contaminants, mainly persistent organic pollutants (POPs) that can be ingested by organisms and introduced into the food web. Meanwhile, MPs may also release potentially toxic substances (e.g., plasticizers, flame retardants and antimicrobial agents) during weathering and degradation. An increasing number of papers are being published during the last years related to the effects of MPs as well as with synergistic effects when associated with MPs and their byproducts such as nanometer sized plastics or nanoplastics. This special issue successfully garnered a collection of research articles that addressed various topics of microplastic or nanoplastic pollution, characteristic, and environmental fate in the water environment. Particularly, this issue reported the seasonable occurrence and distribution of microplastics in different regions (e.g., China and India) from high-latitude nature reserve to sediments and coastal marine environments. Moreover, new sampling and analytical methodologies (e.g., fluorescent labeling) to identify MPs in diver matrixes (e.g., wastewater, sediment, and biota) are critically reviewed. The information is critical for scientists, business leaders, legislators, and the public are to explore and develop solutions that lessen society’s plastic footprint. We thank all authors, reviewers, and editorial staff of FESE for their efforts and contributions to this special issue. Guest Editors: Wen Zhang Department of Civil and Environmental Engineering, New Jersey Institute of Technology (wen.zhang@njit.edu) Melissa Pasquinelli College of Natural Resources, North Carolina State University (melissa_pasquinelli@ncsu.edu) Yang Li School of the Environment Beijing Normal University (liyang_bnu@bnu.edu.cn)
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Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0756-0

Abstract: In this study, a general kinetostatic modeling and morphology characterization methodology that comprehensivelyconsidered to deduce a comprehensive kinetostatic model enabled with the capacity of accurate morphology characterization

Keywords： kinetostatic modeling     morphology characterization     variable friction     continuum robots     in-situ   

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Preparation and characterization of ZnO/ZnS hybrid photocatalysts via microwave-hydrothermal method

ZHAO Jinglian, WANG Xinping, ZHAO Liang

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 415-420 doi: 10.1007/s11783-008-0056-2

Abstract: Preparation and characterization of nanosized ZnO/ZnS hybrid photocatalysts were studied in this paper

Keywords： large-scale     hexagonal     misdistribution     characterization     nanocomposite    

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Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 411-434 doi: 10.1007/s11709-019-0602-y

Abstract: The primary objective of this paper is to present an extensive experimental campaign of mechanical characterization

Keywords： masonry infill walls     experimental characterization     compression strength     shear diagonal strength     flexural    

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Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 440-440 doi: 10.1007/s11705-016-1573-3

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Recent advances in gold-metal oxide core-shell nanoparticles: Synthesis, characterization, and their

Michelle Lukosi,Huiyuan Zhu,Sheng Dai

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 39-56 doi: 10.1007/s11705-015-1551-1

Abstract: This review covers the synthesis and characterization of gold-metal oxide core-shell structures, as well

Keywords： core-shell     characterization     core-shell structure     Different     stability    

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Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 334-364 doi: 10.1007/s11708-017-0490-6

Abstract: This paper addresses the characterization and modeling of both the conventional ionomer-impregnated catalyst

Keywords： polymer electrolyte fuel cell     ultra-thin catalyst layer     electrostatic interactions     characterization and    

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Challenges in characterization of nanoplastics in the environment

Wen Zhang1 , Qi Wang2 , Hao Chen2

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 11-11 doi: 10.1007/s11783-021-1445-z

Abstract: critically examined the current state of art techniques that are exclusively reported for nanoplastic characterization
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Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 819-837 doi: 10.1007/s11705-021-2122-2

Abstract: This review provides an overview on design, preparation and performance characterization of gelled fuels

Keywords： gelled fuels     high-energy-density fuels     rheological properties     atomization     combustion    

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Title Author Date Type Operation

Adsorption of benzene and toluene from waste gas using activated carbon activated by ZnCl

Leila KARIMNEZHAD,Mohammad HAGHIGHI,Esmaeil FATEHIFAR

Journal Article

Effect of textural property of coconut shell-based activated carbon on desorption activation energy of

YU Moxin, LI Zhong, XI Hongxia, XIA Qibin, WANG Shuwen

Journal Article

Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Journal Article

Mechanism and characterization of microplastic aging process: A review

Journal Article

An experimental characterization of human torso motion

Daniele CAFOLLA,I-Ming CHEN,Marco CECCARELLI

Journal Article

Synthesis and characterization of norfloxacin biomonomer

Shengxiong DONG, Qiaoping CHEN, Hongfang XIE, Jianhua HUANG

Journal Article

Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Journal Article

Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots

Journal Article

Preparation and characterization of ZnO/ZnS hybrid photocatalysts via microwave-hydrothermal method

ZHAO Jinglian, WANG Xinping, ZHAO Liang

Journal Article

Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Journal Article

Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Journal Article

Recent advances in gold-metal oxide core-shell nanoparticles: Synthesis, characterization, and their

Michelle Lukosi,Huiyuan Zhu,Sheng Dai

Journal Article

Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Journal Article

Challenges in characterization of nanoplastics in the environment

Wen Zhang1 , Qi Wang2 , Hao Chen2

Journal Article

Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Journal Article