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Zhang Y, He Q, Yang Y, Bai Q. Preparation of a biochar-lignosulfonate composite material and its adsorption performance for Cu 2. RSC Adv 2024; 14:22335-22343. [PMID: 39010917 PMCID: PMC11247616 DOI: 10.1039/d4ra00588k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 05/06/2024] [Indexed: 07/17/2024] Open
Abstract
Biochar was prepared using peanut shells as raw materials, and then composite amino-functionalized lignosulfonate was used to prepare a biochar/lignosulfonate adsorbent (BC-CLS). The morphology and structure of BC-CLS were characterized using FT-IR, SEM, zeta potential, and XPS. The adsorption performance of BC-CLS was evaluated by batch adsorption experiments and dynamic adsorption experiments (adsorption column flow adsorption). The results showed that BC-CLS adsorbent exhibited significant adsorption performance for Cu2+, including a short equilibrium time (50 min), fast adsorption rate (11 mg g-1 min-1), and high static saturation adsorption capacity (354 mg g-1). Dynamic adsorption experiments indicated that the maximum adsorption capacity of BC-CLS adsorbent was approximately 280 mg g-1, with a removal rate of over 99% after five cycles, meeting the wastewater discharge standard (less than 1 mg L-1). The results demonstrated that the adsorption capacity of BC-CLS adsorbent for Cu2+ was controlled by multiple adsorption mechanisms, including electrostatic attraction, precipitation, and metal ion complexation. Additionally, under pH = 5 conditions, using a 40 mg per L Cu2+ solution, the adsorption performance of BC-CLS adsorbent remained above 60% after five adsorption-desorption experiments, indicating good cycling stability of BC-CLS adsorbent.
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Affiliation(s)
- Ying Zhang
- Department of Chemical Power Engineering, Shenmu Vocational & Technical College Yulin 719300 Shaanxi China
- Production and Operation Department, Shenmu Electrochemical Development Co., Ltd Yulin 719300 Shaanxi China
| | - Qi He
- Department of Chemical Power Engineering, Shenmu Vocational & Technical College Yulin 719300 Shaanxi China
- Production and Operation Department, Shenmu Electrochemical Development Co., Ltd Yulin 719300 Shaanxi China
| | - Yonglin Yang
- School of Chemistry & Chemical Engineering, Yulin University Yulin 719000 Shaanxi China
| | - Qian Bai
- School of Mechanical Engineering, Yulin Vocational & Technical College Yulin 719000 Shaanxi China
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Wang D, Guo L, Qiao Z, Liu H, Zhang Y, Wang Y. Portable hydroxyl-functionalized coal gangue-based cordierite porous ceramics sheets for effective adsorption of fluorine-containing wastewater. RSC Adv 2024; 14:15155-15166. [PMID: 38725563 PMCID: PMC11079754 DOI: 10.1039/d4ra01928h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024] Open
Abstract
Monolithic adsorbent removal of fluoride from water is considered an effective and non-secondary pollution method. Here, a portable hydroxyl-functionalized coal gangue-based cordierite porous ceramic sheet (ACGC-Fe) is prepared by using coal gangue solid waste with a specific silicon-aluminum-rich composition ratio and a small amount of magnesium oxide as a raw material through powder compression molding and mild chemical modification. The prepared ACGC-Fe can be used to treat fluorine-containing wastewater and the maximum adsorption of fluorine can reach 18.69 mg g-1. The Langmuir (Freundlich) adsorption isotherm model and pseudo-second-order kinetic model here provided a satisfactory description of the fluoride removal operating mechanism, and it is confirmed that the adsorption mechanism of ACGC-Fe is mainly attributed to the chemisorption of hydrogen bonds (with hydroxyl group) and ionic bonds (with metal), and physical adsorption based on cordierite porous ceramic pores. This research will provide a new idea for designing high-performance materials by mining and analyzing the composition and structure characteristics of coal gangue solid waste itself and broaden the application range of high-value-added coal gangue solid waste.
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Affiliation(s)
- Deyin Wang
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
| | - Liming Guo
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
| | - Zhennan Qiao
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
| | - Hongwei Liu
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
| | - Yanlan Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
| | - Yongzhen Wang
- College of Materials Science and Engineering, Taiyuan University of Technology Taiyuan 030024 China
- Shanxi Joint Laboratory of Coal based Solid Waste Resource Utilization and Green Ecological Development Taiyuan 030024 China
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Li M, Chen L, Du J, Gong C, Li T, Wang J, Li F, She Y, Jia J. Thiol-Ene Click Reaction Modified Triazinyl-Based Covalent Organic Framework for Pb(II) Ion Effective Removal. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8688-8696. [PMID: 38323925 DOI: 10.1021/acsami.3c16227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
As a common water pollutant, Pb2+ has harmful effects on the nervous, hematopoietic, digestive, renal, cardiovascular, and endocrine systems. Due to the drawbacks of traditional adsorbents such as structural disorder, poor stability, and difficulty in introducing adsorption active sites, the adsorption capacity is low, and it is difficult to accurately study the adsorption mechanism. Herein, vinyl-functionalized covalent organic frameworks (COFs) were synthesized at room temperature, and sulfur-containing active groups were introduced by the click reaction. By precisely tuning the chemical structure of the sulfur-containing reactive groups through the click reaction, we found that the adsorption activity of the sulfhydryl group was higher than that of the sulfur atom in the thioether. Moreover, the incorporation of flexible linking groups was observed to enhance the adsorption activity at the active site. The maximum adsorption capacity of the postmodified COF TAVA-S-Et-SH for Pb(II) reached 303.0 mg/g, which is 2.9 times higher than that of the unmodified COF. This work not only demonstrates the remarkable potential of the "thiol-ene" click reaction for the customization of active adsorption sites but also demonstrates the remarkable potential of the "thiol-alkene" click reaction to explore the structure-effect relationship between the active adsorption sites and the metal ion adsorption capacity.
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Affiliation(s)
- Mingyan Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Liangjun Chen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jiawei Du
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Innovation Research Center for Advanced Environmental Technology, Eco-industrial Innovation Institute ZJUT, 2 Rong-chang East Road, Quzhou 324400, China
| | - Chengtao Gong
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tingting Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jian Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Feili Li
- College of Environmental, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuanbin She
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianhong Jia
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Innovation Research Center for Advanced Environmental Technology, Eco-industrial Innovation Institute ZJUT, 2 Rong-chang East Road, Quzhou 324400, China
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Nguyen NA, Nguyen DK, Dinh VP, Duong BN, Ton-That L, Hung NT, Ho TH. Effective adsorption of Pb(II) ion from aqueous solution onto ZSM-5 zeolite synthesized from Vietnamese bentonite clay. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1530. [PMID: 38006447 DOI: 10.1007/s10661-023-12153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
ZSM-5 zeolite was successfully synthesized from bentonite clay sourced from Lam Dong Province, Vietnam, using the hydrothermal method at 170 °C for 18 h. The synthesized ZSM-5 (SiO2/Al2O3 ratio ~ 34) exhibited a single phase with high crystallinity (91.8%), and a clear and uniform shape. In a detailed examination of the synthesized material's Pb(II) adsorptive capacity, various factors were taken into account, including pH, interaction time, ionic strength, and the amount of adsorbent. Isotherms and kinetics were examined to elucidate the uptake behavior. Study results suggested that Pb(II) ion uptake by ZSM-5 was most appropriately described by the Sips isotherm and intraparticle diffusion kinetic models. The calculated maximum monolayer adsorption capacity according to the Langmuir isotherm model was 48.36 mg/g. Furthermore, the adsorption mechanisms of Pb(II) on ZSM-5 involving electrostatic interactions, ion exchange, and diffusion into pores were demonstrated using the analytical techniques before and after Pb(II) adsorption. These findings demonstrate that ZSM-5 synthesized from bentonite clay exhibits an excellent adsorption capacity for Pb(II), resulting in promising applications for treating drinking water or aqueous industrial waste containing Pb(II) ions.
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Affiliation(s)
- Ngoc-An Nguyen
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
| | - Duy-Khoi Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam.
- Nuclear Training Center, Vietnam Atomic Energy Institute, 140 Nguyen Tuan, Thanh Xuan, Ha Noi, 100000, Vietnam.
- Faculty of Natural Sciences, Duy Tan University, Da Nang City, 550000, Vietnam.
| | - Van-Phuc Dinh
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam.
| | - Bich-Ngoc Duong
- Institute of Interdisciplinary Social Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
- Nuclear Training Center, Vietnam Atomic Energy Institute, 140 Nguyen Tuan, Thanh Xuan, Ha Noi, 100000, Vietnam
| | - Loc Ton-That
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, 700000, Vietnam
- Faculty of Natural Sciences, Duy Tan University, Da Nang City, 550000, Vietnam
| | - Nguyen Trong Hung
- Graduate Institute for Technology of Radioactive and Rare Elements, 48-Lang Ha, Dong Da, Ha Noi, 100000, Vietnam
| | - Thien-Hoang Ho
- Dong Nai University, 9 Le Quy Don Street, Dong Nai, 810000, Vietnam
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