« Previous AbstractEffect of H(2)O(2) induced oxidative stress (OS) on volatile organic compounds (VOCs) and intracellular metabolism in MCF-7 breast cancer cells    Next AbstractFermentation by Multiple Bacterial Strains Improves the Production of Bioactive Compounds and Antioxidant Activity of Goji Juice »

Materials (Basel)

Title:		Fabrication of Diatomite/Silicalite-1 Composites and Their Property for VOCs Adsorption
Author(s):		Liu Y; Tian T;
Address:		"Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, China. liuyt841011@163.com. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, College of New Energy and Environment, Jilin University, Changchun 130012, China. tiantao@jlu.edu.cn"
Journal Title:		Materials (Basel)
Year:		2019
Volume:		20190213
Issue:		4
Page Number:		-
DOI:		10.3390/ma12040551
ISSN/ISBN:		1996-1944 (Print) 1996-1944 (Electronic) 1996-1944 (Linking)
Abstract:		"Adsorption technology is an effective method to remove volatile organic compounds (VOCs). In this work, we prepared hierarchical porous materials using modified diatomite (Dt) as a support and nano-sized silicalite-1 (S-1) seeds as inorganic fillers, which were applied to adsorb volatile organic compounds (VOCs). The characterization of the composites indicated that S-1 was successfully coated onto the surface of modified Dt, and the best surface area of the composites was 398.8 m(2)/g, nearly 40 times as large as Dt. The adsorption capacities of Dt/S-1 composites for three probe VOCs (ethyl acetate, acetone, and toluene) were rather superior to Dt, and the composites had preferential adsorption selectivity for ethyl acetate. Effects of seeded zeolite contents and hydrothermal conditions for the adsorption capacity of composites were discussed in this paper. The composite seeded with 5 wt% S-1 zeolite, which was subsequently synthesized by hydrothermal reaction at 100 degrees C for four days, showed the maximum adsorption capacity (1.31 mmol/g for ethyl acetate). The pseudo second-order model provided a perfect fit to adsorption kinetics, while the Langmuir model agreed the best with the adsorption isotherms. In addition, the composites had selective adsorption to ethyl acetate among these three probes VOCs. The regeneration experiments were also carried out, and the adsorption efficiency of the adsorbents was still up to 67% after five adsorption(-)desorption cycles. The hierarchical porous Dt/S-1 composites have an excellent VOC adsorption performance, satisfactory selectivity, and recycling ability"
Keywords:		Diatomite VOCs adsorption hierarchical porous structure silicalite-1;
Notes:		"PubMed-not-MEDLINELiu, Yutong Tian, Tao eng 21771080/National Natural Science Foundation of China/ JJKH20180166KJ/Education Department of Jilin Province/ Switzerland 2019/02/20 Materials (Basel). 2019 Feb 13; 12(4):551. doi: 10.3390/ma12040551"