نتایج جستجو برای: adsorption capacities

تعداد نتایج: 81005  

Journal: :Faraday discussions 2017
S Hindocha S Poulston

The metal-organic frameworks (MOFs) MIL-100(Fe), Cu-BTC and CPO-27(Ni) were synthesised in 1 kg batches. The materials were then formed in two different industrially relevant ways. Firstly, dry granulation was used to produce pellets which were sieved to give material with a 300-1000 μm size, and the fines were subsequently recycled to mimic a large scale industrial process. Secondly, wet granu...

2015
Aixia Song Jinghong Ma Ruifeng Li

A systematic and detailed analysis of adsorption and diffusion properties of xylene isomers over Beta zeolites with different mesoporosity was conducted. Adsorption isotherms of xylene isomers over microporous and mesoporous Beta zeolites through gravimetric methods were applied to investigate the impact of mesopores inside Beta zeolites on the adsorption properties of xylene isomers in the pre...

2017
Maria Eugenia Roca Jalil Miria Baschini Karim Sapag

Emerging contaminants in the environment have caused enormous concern in the last few decades, and among them, antibiotics have received special attention. On the other hand, adsorption has shown to be a useful, low-cost, and eco-friendly method for the removal of this type of contaminants from water. This work is focused on the study of ciprofloxacin (CPX) removal from water by adsorption on p...

Journal: :Water research 2007
Natasja Schouten Louis G J van der Ham Gert-Jan W Euverink André B de Haan

Low-cost adsorbents were tested to remove anionic surfactants from laundry rinsing water to allow re-use of water. Adsorbents were selected corresponding to the different surfactant adsorption mechanisms. Equilibrium adsorption studies of linear alkyl benzene sulfonate (LAS) show that ionic interaction results in a high maximum adsorption capacity on positively charged adsorbents of 0.6-1.7 gLA...

Journal: :Molecules 2012
Feng-Jian Yang Chun-Hui Ma Lei Yang Chun-Jian Zhao Ying Zhang Yuan-Gang Zu

In present study, the performance and separation characteristics of 21 macroporous resins for the enrichment and purification of deoxyschizandrin and γ-schizandrin, the two major lignans from Schisandra chinensis extracts, were evaluated. According to our results, HPD5000, which adsorbs by the molecular tiers model, was the best macroporous resin, offering higher adsorption and desorption capac...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2016
Jong-Hwan Park Seong-Heon Kim Se-Won Kang Byung-Hwa Kang Ju-Sik Cho Jong-Soo Heo Ronald D Delaune Yong Sik Ok Dong-Cheol Seo

Adsorption characteristics of potentially toxic metals in single- and multi-metal forms onto ferronickel slag were evaluated. Competitive sorption of metals by ferronickel slag has never been reported previously. The maximum adsorption capacities of toxic metals on ferronickel were in the order of Cd (10.2 mg g(-1)) > Cu (8.4 mg g(-1)) > Zn (4.4 mg g(-1)) in the single-metal adsorption isotherm...

2012
Weigang Zhao Vanessa Fierro E. Aylon M. T. Izquierdo Alain Celzard Philippe Séguin Miguel Luesma Castán

Activated carbons (ACs) with controlled microporosity have been prepared and their H2 storage performances have been tested in a gravimetric device. Such adsorbents are natural Chinese anthracites chemically activated with alkaline hydroxides, NaOH or KOH. Outstanding total storage capacities of hydrogen, as high as 6.6wt.% equivalent to excess capacity of 6.2 wt.%, have been obtained at 4MPa f...

Journal: :Journal of Mechanical Engineering Science and Technology 2020

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
K S Wong K H Wong S Ng W K Chung P K Wong

The adsorption of Cu2+ from aqueous solution by magnetite-immobilised chitin (MC) was studied in batch mode. Two conventional adsorbents, cation exchange resin (CER) and activated carbon (AC) were used for the comparison. The physicochemical parameters including pH, concentration of adsorbent, temperature and initial Cu2+ concentration were optimised. Under the optimised conditions, the removal...

2013
Fenglin Huang Yunfei Xu Shiqin Liao Dawei Yang You-Lo Hsieh Qufu Wei

Polyacrylonitrile (PAN) nanofibers were prepared by electrospinning and they were modified with hydroxylamine to synthesize amidoxime polyacrylonitrile (AOPAN) chelating nanofibers, which were applied to adsorb copper and iron ions. The conversion of the nitrile group in PAN was calculated by the gravimetric method. The structure and surface morphology of the AOPAN nanofiber were characterized ...

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