Phenol adsorption properties and microstructural changes of organically modified bentonite - Details

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Abstract：

Phenolic　compounds　are　prevalent　organic　contaminants　in　aquatic　and　soil　environments.　In　order　to　address　the　issue　of　phenolic　wastewater　treatment,　bentonite　can　be　utilized　as　an　effective　adsorbent　through　organic　modification.　The　present　study　focuses　on　using　sodium　bentonite,　which　was　modified　with　cetyltrimethylammonium　bromide　(CTMAB),　to　remove　phenol　from　an　aqueous　solution.　The　influence　of　various　factors　such　as　adsorption　time,　initial　phenol　concentration,　and　CTMAB-bentonite　dosage　on　phenol　adsorption　was　thoroughly　investigated.　In　addition,　the　microstructural　changes　during　the　adsorption　process,　adsorption　kinetics,　and　adsorption　isotherms　of　the　organically　modified　bentonite　(OMB)　were　analyzed.　The　results　indicated　that　the　adsorption　equilibrium　time　of　OMB　was　longer　compared　to　sodium　bentonite.　The　amount　of　phenol　adsorbed　by　OMB　was　found　to　be　positively　correlated　with　the　initial　phenol　concentration　and　CTMAB-bentonite　dosage.　The　maximum　phenol　adsorption　capacity　and　removal　rate　achieved　were　3.00　mg/g　and　43.74%,　respectively.　The　study　also　revealed　that　a　quasi-second-order　kinetic　model　was　appropriate　for　describing　the　phenol　adsorption　process　of　OMB,　and　the　adsorption　isotherm　was　found　to　conform　to　the　Freundlich　isotherm　model.　These　findings　demonstrate　the　potential　of　OMB　as　an　efficient　and　effective　adsorbent　for　phenolic　wastewater　treatment.　©　2023　ICE　Publishing:　All　rights　reserved.

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[ 1 ] [He, H.]College of Civil and Architectural Engineering, Taizhou University, Taizhou, China
[ 2 ] [He, H.]MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, China
[ 3 ] [Chai, K.]College of Civil and Architectural Engineering, Taizhou University, Taizhou, China
[ 4 ] [Chai, K.]School of Civil Engineering, Shenyang Jianzhu University, Shenyang, China
[ 5 ] [Wu, T.]MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, China
[ 6 ] [Wu, T.]College of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang, China
[ 7 ] [Qiu, Z.]College of Civil and Architectural Engineering, Taizhou University, Taizhou, China
[ 8 ] [Feng, S.]MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, China
[ 9 ] [Feng, S.]College of Civil Engineering, Fuzhou University, Fuzhou, China
[ 10 ] [Wang, S.]College of Civil and Architectural Engineering, Taizhou University, Taizhou, China
[ 11 ] [Xie, H.]College of Civil and Architectural Engineering, Zhejiang University, Hangzhou, China
[ 12 ] [Yao, J.]College of Civil and Architectural Engineering, Taizhou University, Taizhou, China
[ 13 ] [Zhao, J.]School of Civil Engineering, Shenyang Jianzhu University, Shenyang, China

Reprint 's Address：

[Wu, T.]College of Civil Engineering and Architecture, China

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chinawt@just.edu.cn

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Environmental Geotechnics

ISSN： 2051-803X

Year： 2023

2 . 2

JCR@2023

2 . 2 0 0

JCR@2023

ESI HC Threshold：35

JCR Journal Grade：3

CAS Journal Grade：4

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 5

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 8

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