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Hu Y, Liu S, Qiu M, Zheng X, Peng X, Dai H, Hu F, Xu L, Xu G, Zhu Y, Guo R. Lysine-functionalized layered double hydroxides for the antibiotics’ efficient removal: Controllable fabrication via BBD model and removing mechanism. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Sun X, Guo P, Sun Y, Cui Y. Adsorption of Hexavalent Chromium by Sodium Alginate Fiber Biochar Loaded with Lanthanum. MATERIALS 2021; 14:ma14092224. [PMID: 33925966 PMCID: PMC8123644 DOI: 10.3390/ma14092224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022]
Abstract
Lanthanun oxide (La2O3) is a lanthanum chemical compound incorporates a sensible anionic complexing ability; however, it lacks stability at a low pH scale. Biochar fibers will give the benefit of their massive space and plethoric uses on the surface to support a metal chemical compound. Herein, wet spinning technology was used to load La3+ onto sodium alginate fiber, and to convert La3+ into La2O3 through carbonization. The La2O3-modified biochar (La-BC) fiber was characterized by SEM, XRD and XPS, etc. An adsorption experiment proved that La-BC showed an excellent adsorption capacity for chromates, and its saturation adsorption capacity was about 104.9 mg/g. The information suggested that the adsorption was in step with both the Langmuir and Freundlich models, following pseudo-second-order surface assimilation mechanics, which showed that the Cr (VI) adsorption was characterized by single-phase and polyphase adsorption, mainly chemical adsorption. The thermodynamic parameters proved that the adsorption process was spontaneous and endothermic. The mechanistic investigation revealed that the mechanism of the adsorption of Cr (VI) by La-BC may include electrostatic interaction, ligand exchange, or complexation. Moreover, the co-existing anions and regeneration experiments proved that the La-BC is recyclable and has good prospects in the field of chrome-containing wastewater removal.
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Affiliation(s)
- Xinzhe Sun
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
| | - Peng Guo
- School of Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China;
| | - Yuanyuan Sun
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
- Correspondence: (Y.S.); (Y.C.); Tel.: +86-152-6423-0805 (Y.S.); +86-137-9323-5399 (Y.C.)
| | - Yuqian Cui
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China;
- Correspondence: (Y.S.); (Y.C.); Tel.: +86-152-6423-0805 (Y.S.); +86-137-9323-5399 (Y.C.)
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Tran HN, Nguyen DT, Le GT, Tomul F, Lima EC, Woo SH, Sarmah AK, Nguyen HQ, Nguyen PT, Nguyen DD, Nguyen TV, Vigneswaran S, Vo DVN, Chao HP. Adsorption mechanism of hexavalent chromium onto layered double hydroxides-based adsorbents: A systematic in-depth review. JOURNAL OF HAZARDOUS MATERIALS 2019; 373:258-270. [PMID: 30925385 DOI: 10.1016/j.jhazmat.2019.03.018] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/05/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
An attempt has been made in this review to provide some insights into the possible adsorption mechanisms of hexavalent chromium onto layered double hydroxides-based adsorbents by critically examining the past and present literature. Layered double hydroxides (LDH) nanomaterials are typical dual-electronic adsorbents because they exhibit positively charged external surfaces and abundant interlayer anions. A high positive zeta potential value indicates that LDH has a high affinity to Cr(VI) anions in solution through electrostatic attraction. The host interlayer anions (i.e., Cl-, NO3-, SO42-, and CO32-) provide a high anion exchange capacity (53-520 meq/100 g) which is expected to have an excellent exchangeable capacity to Cr(VI) oxyanions in water. Regarding the adsorption-coupled reduction mechanism, when Cr(VI) anions make contact with the electron-donor groups in the LDH, they are partly reduced to Cr(III) cations. The reduced Cr(III) cations are then adsorbed by LDH via numerous interactions, such as isomorphic substitution and complexation. Nonetheless, the adsorption-coupled reduction mechanism is greatly dependent on: (1) the nature of divalent and trivalent salts utilized in LDH preparation, and the types of interlayer anions (i.e., guest intercalated organic anions), and (3) the adsorption experiment conditions. The low Brunauer-Emmett-Teller specific surface area of LDH (1.80-179 m2/g) suggests that pore filling played an insignificant role in Cr(VI) adsorption. The Langmuir maximum adsorption capacity of LDH (Qomax) toward Cr(VI) was significantly affected by the natures of used inorganic salts and synthetic methods of LDH. The Qomax values range from 16.3 mg/g to 726 mg/g. Almost all adsorption processes of Cr(VI) by LDH-based adsorbent occur spontaneously (ΔG° <0) and endothermically (ΔH° >0) and increase the randomness (ΔS° >0) in the system. Thus, LDH has much potential as a promising material that can effectively remove anion pollutants, especially Cr(VI) anions in industrial wastewater.
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Affiliation(s)
- Hai Nguyen Tran
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam.
| | - Dong Thanh Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Giang Truong Le
- Institute of Chemistry, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Fatma Tomul
- Burdur Mehmet Akif Ersoy University, Faculty of Arts and Science, Chemistry Department, 15100 Burdur, Turkey
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Seung Han Woo
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseodaero, Yuseong-Gu, Daejeon 305-719, Republic of Korea
| | - Ajit K Sarmah
- Department of Civil & Environmental Engineering, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Hung Quang Nguyen
- Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Vietnam
| | - Phuong Tri Nguyen
- Department of Chemistry, University of Montreal, Montreal, QC, Canada
| | - Dinh Duc Nguyen
- Department of Environmental Energy Engineering, Kyonggi University, Republic of Korea
| | - Tien Vinh Nguyen
- Faculty of Engineering and IT, University of Technology Sydney (UTS), Sydney, Australia
| | | | - Dai-Viet N Vo
- Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang 26300, Pahang, Malaysia
| | - Huan-Ping Chao
- Department of Environmental Engineering and R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan, 32023, Taiwan.
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Chen Z, Wei B, Yang S, Li Q, Liu L, Yu S, Wen T, Hu B, Chen J, Wang X. Synthesis of PANI/AlOOH composite for Cr(VI) adsorption and reduction from aqueous solutions. ChemistrySelect 2019. [DOI: 10.1002/slct.201803898] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhongshan Chen
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Benben Wei
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Shanye Yang
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Qian Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Lu Liu
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Shujun Yu
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Tao Wen
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
| | - Baowei Hu
- School of Life Science; Shaoxing University; Huancheng West Road 508 Shaoxing 312000 China
| | - Jianrong Chen
- College of Geography and Environmental Science; Zhejiang Normal University, Jinhua; 321004 China
| | - Xiangke Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization; College of Environmental Science and Engineering; North China Electric Power University; Beijing 102206 China
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