نتایج جستجو برای: spent molecular sieve

تعداد نتایج: 673428  

Journal: :Industrial & Engineering Chemistry Research 1996

Journal: :Journal of Materials Research 2017

2017
Yan Shi Ken Sun Lixin Huo Xiuxiu Li Xuebin Qi Zhaohui Li

Chitosan was used to modify a 13X molecular sieve to improve its cadmium removal capability. After being modified with 2% chitosan-acetate for 2 h at 30 °C, significant uptake of Cd2+ could be achieved. The uptake of Cd2+ on the modified 13X molecular sieve followed the Langmuir isotherms with a capacity of 1 mg/g. The kinetics of Cd2+ removal by modified 13X molecular sieve followed a pseudo s...

Journal: :Plant physiology 2008
Peiying Hao Caixiang Liu Yuanyuan Wang Rongzhi Chen Ming Tang Bo Du Lili Zhu Guangcun He

The brown planthopper (Nilaparvata lugens Stål; BPH) is a specialist herbivore on rice (Oryza sativa) that ingests phloem sap from the plant through its stylet mouthparts. Electronic penetration graphs revealed that BPH insects spent more time wandering over plants carrying the resistance genes Bph14 and Bph15, but less time ingesting phloem than they did on susceptible plants. They also showed...

Journal: :Journal of Biological Chemistry 1971

Journal: :The Journal of Physical Chemistry B 2002

F. Narimani, M. Kharamesh

Zeolites due to their structures can be used as molecular sieves for purification of materials and solutions. Zeolites with PHI and SOD structure are so common and applicable for this purpose. Hydroxy sodalite and phillipsite are the more abundant members of zeolites which display good selectivity for very small molecules and some ions such as Sr, Pb, Zn, Cu and Rb. There is not any pure natura...

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