In-situ preparation of Cu-BTC modified with organic amines for H2S removal under ambient conditions

Zhelin Su; Mingxian Duan; Yeshuang Wang; Huiling Fan; Zhen Tian; Zhaohui Chen; Chao Yang; Ju Shangguan

Resources Chemicals and Materials (Jun 2023)

In-situ preparation of Cu-BTC modified with organic amines for H2S removal under ambient conditions

Zhelin Su,
Mingxian Duan,
Yeshuang Wang,
Huiling Fan,
Zhen Tian,
Zhaohui Chen,
Chao Yang,
Ju Shangguan

Affiliations

Zhelin Su: State Key Laboratory of Clean and Efficient Coal Utilization, Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, West Yingze Street Number 79, Taiyuan, 030024, China
Mingxian Duan: State Key Laboratory of Clean and Efficient Coal Utilization, Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, West Yingze Street Number 79, Taiyuan, 030024, China
Yeshuang Wang: State Key Laboratory of Clean and Efficient Coal Utilization, Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, West Yingze Street Number 79, Taiyuan, 030024, China
Huiling Fan: State Key Laboratory of Clean and Efficient Coal Utilization, Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, West Yingze Street Number 79, Taiyuan, 030024, China; Corresponding authors.
Zhen Tian: School of Resources and Environmental Engineering, Shanghai Polytechnic University, Shanghai 201209, China
Zhaohui Chen: State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
Chao Yang: College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Corresponding authors.
Ju Shangguan: State Key Laboratory of Clean and Efficient Coal Utilization, Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, West Yingze Street Number 79, Taiyuan, 030024, China

Journal volume & issue: Vol. 2, no. 2
pp. 143 – 150

Abstract

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Amine modification is an effective strategy to improve the H2S removal performance of Cu-BTC. In order to avoid the problem of pore blockage after amine modification in post synthesis impregnation, herein a series of Cu-BTC modified with organic amine adsorbents were prepared via an in-situ one-pot method and the H2S removal performance under ambient conditions was tested. It is found that the introduced organic amines, depending on the types of amine selected, have a significant influence on the growth of Cu-BTC and its textural properties. The H2S removal performance on the as-prepared materials suggested that the amine modified samples remarkably improved the H2S removal capacities with an order of BA-Cu-BTC > TEA-Cu-BTC > TEOA-Cu-BTC > Cu-BTC. Besides the enlarged surface area and the increased mesopores volumes, BA has the advantages of smaller steric hindrance and –NH2 groups, among which the former increased the accessibility of Cu active sites while the latter acted as additional active sites for H2S capturing, thus affording BA-Cu-BTC highest breakthrough capacity of 77.3 mg S/g. Overall, this study elaborates the effect of organic amines in-situ modification on the Cu-BTC structure and desulfurization.

Published in Resources Chemicals and Materials

ISSN: 2772-4433 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology
Website: https://www.keaipublishing.com/en/journals/resources-chemicals-and-materials/

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