نتایج جستجو برای: sorption experiment

تعداد نتایج: 461618  

Journal: :Water Air and Soil Pollution 2021

Abstract The article highlights sorptive properties of poultry litter. Preliminary studies on sorption Cd 2+ , Cu Ni Pb Zn ions at the concentration range 1–1000 mg L -1 were carried out. Langmuir and Freundlich models used to determine potential capacities Sorption parameter outcome from isotherms exhibited following order: > Ni. During batch adsorption experiment, a decrease absorbance sol...

Journal: :Journal of the American Chemical Society 2015
Pravas Deria Diego A Gómez-Gualdrón Wojciech Bury Herbert T Schaef Timothy C Wang Praveen K Thallapally Amy A Sarjeant Randall Q Snurr Joseph T Hupp Omar K Farha

"Breathing" metal-organic frameworks (MOFs) are an emerging class of soft porous crystals (SPCs) with potential for high working capacity for gas storage applications. However, most breathing MOFs have low stability and/or low surface area. Here we report a water-stable, high surface area, breathing MOF of ftw topology, NU-1105. While Zr6-oxo clusters as nodes introduce water stability in NU-11...

Journal: :Environmental toxicology and chemistry 2005
Aaryn D Jones Gregory L Bruland Sheela G Agrawal Dharni Vasudevan

Veterinary antibiotics such as oxytetracycline (OTC) increasingly are found in the environment and often come into direct contact with soils via the release of animal wastes. Oxytetracycline is known to sorb strongly to soils by interaction with soil organic matter, clay minerals, and metal oxides. However, current knowledge of the influence of soil properties on OTC sorption is limited, as is ...

Journal: :Inorganic chemistry 2009
Jeong Yong Lee John M Roberts Omar K Farha Amy A Sarjeant Karl A Scheidt Joseph T Hupp

A new strut containing an imidazolium tetracarboxylic acid core has been successfully incorporated into a microporous material using paddlewheel-coordinated copper(II) ions as nodes. Sorption studies conducted on this permanently microporous material imply that it can separate carbon dioxide from methane with high selectivity.

2018
N. Evans N. Bryan L. Knight

Within the framework of the FUNMIG programme, Loughborough University is performing work to increase understanding of the sorption behaviour of selected radionuclides with various minerals in the absence and presence of competing complexing ligands, such as humic acid (HA). The determination of the distribution ratios (Rd) of binary (metaland humicsolid), and ternary (metal-solid-humic) systems...

Journal: :international journal of environmental research 2011
j. lee h. zhang y. liu x. liu g. miao

approach of organic material anaerobic biodegradation and species of organic matter in sediment are discussed, and then a classifying method of the species is proposed on a new viewpoint. the pore water sediment oxygen demand (sod) numerical model in bottom sediment system is proposed originally, which differs from other advection-dispersion-sorption (ads) model in adding a sod-creating term. t...

2016
Quan-Guo Zhai Xianhui Bu Chengyu Mao Xiang Zhao Luke Daemen Yongqiang Cheng Anibal J Ramirez-Cuesta Pingyun Feng

Metal-organic frameworks are a class of crystalline porous materials with potential applications in catalysis, gas separation and storage, and so on. Of great importance is the development of innovative synthetic strategies to optimize porosity, composition and functionality to target specific applications. Here we show a platform for the development of metal-organic materials and control of th...

Journal: :Chemical communications 2011
Simon S Iremonger Junmei Liang Ramanathan Vaidhyanathan George K H Shimizu

A bis(phosphonatemonoester) is employed as a linker in a Zn(II) metal organic framework. The complex is a layered structure pillared only by vdW interactions between alkyl groups. Nonetheless, permanent pores are formed as confirmed by PXRD and gas sorption analysis.

2013
Mohammad Z. Afsar Sirajul Hoque Khan Towhid Osman

Establishment of phosphate (P) retention and release capacity of soils is essential for effective nutrient management and environmental protection. In this experiment, we studied the influence of soil properties on P desorption and the relationship between phosphate sorption and desorption. Among the soil series, the Ghior soil had the highest percent clay (59.32%) and free iron oxide (15,241 m...

Journal: :Nature communications 2014
Pintu K Kundu Gregory L Olsen Vladimir Kiss Rafal Klajn

Nanoporous frameworks are polymeric materials built from rigid molecules, which give rise to their nanoporous structures with applications in gas sorption and storage, catalysis and others. Conceptually new applications could emerge, should these beneficial properties be manipulated by external stimuli in a reversible manner. One approach to render nanoporous frameworks responsive to external s...

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