Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption

In this paper, the mesopore-activated red mud (M-ARM) was prepared by treating red mud (RM) with acid under an ultrasonic batch and through heat treatment at 750 C. The surface area and adsorption average pore width of M-ARM were calculated and obtained values of 13.408 m2 g-1 and 25.160 nm, respect...

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Những tác giả chính:	Nguyễn, Đình Trung, Ning Ping, Ho Km Dan
Định dạng:	Journal article
Ngôn ngữ:	English
Được phát hành:	2023
Những chủ đề:	Mesopores activated red mud, phosphorus, thermodynamics, kinetics
Truy cập trực tuyến:	https://scholar.dlu.edu.vn/handle/123456789/2055 https://doi.org/10.1155/2022/8351796
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spelling	oai:scholar.dlu.edu.vn:123456789-20552023-12-13T04:24:13Z Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption Nguyễn, Đình Trung Ning Ping, Ho Km Dan Mesopores activated red mud, phosphorus, thermodynamics, kinetics In this paper, the mesopore-activated red mud (M-ARM) was prepared by treating red mud (RM) with acid under an ultrasonic batch and through heat treatment at 750 C. The surface area and adsorption average pore width of M-ARM were calculated and obtained values of 13.408 m2 g-1 and 25.160 nm, respectively. Therefore, the maximum adsorption capacity of M-ARM for phosphorus was 200: 85 ± 1: 66 mg g− 1 at 318 K and pH = 5. At a low initial concentration (75 mg L-1), the phosphorus removal capacity by M-ARM material was up to 97:09 ± 0:15 % at 313 K. With the temperature scales varying from 298 to 313 K, the values of Gibbs free energy change (Δ G ° ) were negative and also vary from -37.47 to -36.68. The phosphorus adsorption process in an aqueous solution is spontaneous, and this adsorption process was exothermic with enthalpy change ΔHo = −14:36. From the results of investigations and calculations of thermodynamic values, kinetics, and adsorption capacity of materials, we can confirm that the materials in this study had a low-cost and potential material for applications to treat phosphorus-contaminated water. In addition, the adsorption kinetics of this material for phosphorus were also studied and discussed. ID 8351796 1-12 Trung tâm Phân tích và Kiểm định 3 nguyễn đình trung dòng 22 trang 18 theo quy chế chi tiêu nội bộ 2023-04-26T04:01:35Z 2023-04-26T04:01:35Z 2022-12 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter https://scholar.dlu.edu.vn/handle/123456789/2055 https://doi.org/10.1155/2022/8351796 en Adsorption Science & Technology
institution	Thư viện Trường Đại học Đà Lạt
collection	Thư viện số
language	English
topic	Mesopores activated red mud, phosphorus, thermodynamics, kinetics
spellingShingle	Mesopores activated red mud, phosphorus, thermodynamics, kinetics Nguyễn, Đình Trung Ning Ping, Ho Km Dan Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
description	In this paper, the mesopore-activated red mud (M-ARM) was prepared by treating red mud (RM) with acid under an ultrasonic batch and through heat treatment at 750 C. The surface area and adsorption average pore width of M-ARM were calculated and obtained values of 13.408 m2 g-1 and 25.160 nm, respectively. Therefore, the maximum adsorption capacity of M-ARM for phosphorus was 200: 85 ± 1: 66 mg g− 1 at 318 K and pH = 5. At a low initial concentration (75 mg L-1), the phosphorus removal capacity by M-ARM material was up to 97:09 ± 0:15 % at 313 K. With the temperature scales varying from 298 to 313 K, the values of Gibbs free energy change (Δ G ° ) were negative and also vary from -37.47 to -36.68. The phosphorus adsorption process in an aqueous solution is spontaneous, and this adsorption process was exothermic with enthalpy change ΔHo = −14:36. From the results of investigations and calculations of thermodynamic values, kinetics, and adsorption capacity of materials, we can confirm that the materials in this study had a low-cost and potential material for applications to treat phosphorus-contaminated water. In addition, the adsorption kinetics of this material for phosphorus were also studied and discussed.
format	Journal article
author	Nguyễn, Đình Trung Ning Ping, Ho Km Dan
author_facet	Nguyễn, Đình Trung Ning Ping, Ho Km Dan
author_sort	Nguyễn, Đình Trung
title	Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
title_short	Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
title_full	Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
title_fullStr	Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
title_full_unstemmed	Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption
title_sort	application of mesopore-ac tivated red mud for phosphorus adsorption
publishDate	2023
url	https://scholar.dlu.edu.vn/handle/123456789/2055 https://doi.org/10.1155/2022/8351796
_version_	1785973031035731968

Application of Mesopore-Ac tivated Red Mud for Phosphorus Adsorption

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