Preparation and Characterization of Porous Catalyst for Formaldehyde Removal using Domestic Low-grade Silica

Yosep Han; Ho-Seok Jeon; Seongmin Kim

doi:10.7844/kirr.2021.30.2.68

All Issue

2021 Vol.30, Issue 2 Preview Page

Research Paper

Preparation and Characterization of Porous Catalyst for Formaldehyde Removal using Domestic Low-grade Silica 국내산 저품위 실리카를 이용한 포름알데히드 제거용 다공성 촉매의 제조 및 특성

30 April 2021. pp. 68-74

PDF XML

Abstract

This study investigated formaldehyde (HCHO) removal by preparing porous supports using domestic low-grade silica coated with Co-ZSM5 and Cu-ZSM5 as the catalysts. First, the sample of the raw material for the support contained 90% silica with quartz crystal phase, which was confirmed as low-grade silica. According to Energy-dispersive X-ray spectroscopy (EDS) and Fourier-transform infrared spectroscopy (FT-IR) analyses, the catalysts, Co-ZSM5 and Cu-ZSM5, were successfully coated on the surface of the porous silica supports. During the removal test of HCHO using the prepared Co-ZSM5 and Cu-ZSM5 coated beads, depending on the reaction temperature, the Co-ZSM5 coated beads exhibited higher removal efficiencies (>97%) than the Cu-ZSM5 beads at 200 °C. The higher efficiency of the Co-ZSM5 coating may be attributed to its superior surface activity properties (BET surface area and pore volume) that lead to the favorable HCHO decomposition. Therefore, Co-ZSM5 was determined to be the suitable catalyst for removing HCHO as a coating on a porous support fabricated using domestic low-grade silica.

Keywords

Low-grade silica

porous support

catalyst

formaldehyde removal

본 연구에서는 촉매 Co-ZSM5 및 Cu-ZSM5 코팅이 적용된 저품위 실리카를 사용하여 다공성 지지체를 제조하여 포름 알데히드 (HCHO) 제거를 수행하였다. 먼저, 지지체 원료는 실리카가 90 % 함유되어 있어 저급 실리카로 확인되었다. EDS 및 FT-IR 분석에 따르면 Co-ZSM5 및 Cu-ZSM5 촉매는 다공성 실리카 지지체의 표면에 성공적으로 코팅되었다. 제조 된 Co-ZSM5 및 Cu-ZSM5 코팅 된 비드를 사용하여 HCHO의 제거 테스트 결과, 반응 온도에 따라 Co-ZSM5 코팅 된 비드는 Cu-ZSM5 비드보다 높은 제거 효율 (> 97 %)을 나타났다. 200 °C. 전자의 더 높은 효율은 우수한 표면 활성 특성 (BET 표면적 및 기공 부피)에서 기인 할 수 있으며, 아마도 유리한 HCHO 분해로 이어질 수 있다. 따라서 Co-ZSM5 비드는 국산 저급 실리카를 사용하여 제작 된 다공성 지지체를 사용하여 HCHO 제거 용 촉매에 적합한 것으로 판단된다.

키워드

저품위 실리카

다공성 지지체

촉매

포름알데히드 제거

References

Choi, S., 2009 : Utilization and materialization of domestic low grade silica minerals, Ministry of Knowledge Economy.

Han, Y., Kim, H., and Park, J., 2004 : Characterstics of NOx reduction using V₂O₅-TiO₂ catalyst coated on ceramic foam filters, Journal of Korean Society for Atmospheric Environment, 20, pp.773-781.

Kim, Y., Lee. H., Yoo, O., et al., 2020 : 2019/2020 mineral commodity supply and demand, Korea Institute of Geoscience and Mineral Resources (KIGAM).

Ishizaki, K., Komarneni, S., and Nanko, M., 1998 : Porous Materials : Process Technology and Applications, 1-11, London, Kluwer Academic Publishers. 10.1007/978-1-4615-5811-8_1

Han, Y., Kim, H., Shin, Y., et al., 2009 : Silver coating on the porous pellets from porphyry rock and application to an antibacterial media, Journal of the Korean Ceramic Society, 46(1), pp.16-23. 10.4191/KCERS.2009.46.1.016

Seo, J., Kim, S., Han, Y., et al., 2013 : Preparation of porous ceramic beads using mine tailings and its applications to catalytic converter, Journal of Korean Inst. of Resources Recycling, 22(4), pp.1-9. 10.7844/kirr.2013.22.4.38

Han, Y., Kim, H., and Tong, M., 2012 : Characterization of stone powder sludge foams and their application to wastewater treatment: Role of pore connectivity, Materials Chemistry and Physics, 134, pp.26-30. 10.1016/j.matchemphys.2012.01.012

Liang, W., Li, J., Li, J., et al., 2010 : Formaldehyde removal from gas streams by means of NaNO₂ dielectric barrier discharge plasma, Journal of Hazardous Materials, 175, pp.1090-1095. 10.1016/j.jhazmat.2009.10.03419896770

Chen, H., Lee, H., Chen, S., et al., 2009 : Removal of volatile organic compounds by single-stage and two-stage plasma catalysis systems: a review of the performance enhancement mechanisms, current status, and suitable applications, Environmental Science and Technology, 43(7), pp.2216-2227. 10.1021/es802679b19452866

Harling, A., Kim, H., Futamura, S., et al., 2007 : Temperature dependence of plasma-catalysis using a nonthermal, atmospheric pressure packed bed; the destruction of benzene and toluene, The Journal of Physical Chemistry C, 111(13), pp.5090-5095. 10.1021/jp067821w

Tanada, S., Kawasaki, N., Nakamura, T., et al., 1999 : Removal of formaldehyde by activated carbons containing amino groups, Journal of Colloid Interface Science, 214, pp.106-108. 10.1006/jcis.1999.617610328902

Zhang, C., He, H., and Tanaka, K., 2005 : Perfect catalytic oxidation of formaldehyde over a Pt/TiO₂ catalyst at room temperature, Catalysis Communications, 6, pp.211-214. 10.1016/j.catcom.2004.12.012

Han, Y., Yang, J., Jung, M., et al., 2020 : Controlling the pore size and connectivity of alumina-particle-stabilized foams using sodium dodecyl sulfate: Role of surfactant concentration, Langmuir, 36, pp.10331-10340. 10.1021/acs.langmuir.0c0110432787018

Han, Y., Kim, S., Kim, H., et al., 2011 : Preparation of sizable and uniform-sized spherical ceramic foams: Drop-in-oil and agar gelation, Journal of the American Ceramic Society, 94, pp.2742-2745. 10.1111/j.1551-2916.2011.04681.x

Han, Y., Choi, J., Kim, H., et al., 2013 : Control of pore and window size of ceramic foams with tri-modal pore structure: Influence of agar concentration, Materials Letters, 110, pp.253-259. 10.1016/j.matlet.2013.05.100

Han, Y., Kim, H., Park, J., et al., 2012 : Influence of Ti doping level on hydrogen adsorption of mesoporous Ti-SBA-15 materials prepared by direct synthesis, International Journal of Hydrogen Energy, 37, pp.14240-14247. 10.1016/j.ijhydene.2012.07.030

Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 30
No :2
Pages :68-74
Received Date : 2021-03-29
Revised Date : 2021-04-13
Accepted Date : 2021-04-14
DOI :https://doi.org/10.7844/kirr.2021.30.2.68

Resources RecyclingISSN:2765-3439(Print) 2765-3447(Online)한국자원리싸이클링학회

All Issue