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Zhang Y, Xiao YF, Xu GS, Xu MD, Wang DC, Jin Z, Liu JQ, Yang LL. Preparation of basic magnesium carbonate nanosheets modified pumice and its adsorption of heavy metals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:111137-111151. [PMID: 37801248 DOI: 10.1007/s11356-023-30023-8] [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: 04/29/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023]
Abstract
Heavy metal pollution in wastewater poses a grave danger to the environment and the human body. Pumice is a mineral with abundant reserves and low prices, and its prospect of heavy metal adsorbent is very broad. In this work, we modified pumice with basic magnesium carbonate nanosheets by a convenient hydrothermal synthesis. The adsorption capacity of heavy metals is greatly improved. The effects of different pH and adsorption dosages are investigated. All the optimum pH values for Cu2+, Pb2+, and Cd2+ are 5. The adsorption of three kinds of ions conforms to the quasi-second-order adsorption kinetics model. The theoretical adsorption capacities of Cu2+, Pb2+, and Cd2+, which are calculated by the Langmuir model, are 235.29 mg/L, 595.24 mg/L, and 370.34 mg/L, respectively. The adsorption of Cu2+ and Cd2+ fit the Langmuir model better. The Freundlich model is fitted well with the adsorption of Pb2+. In the experiment simulating real wastewater, the adsorption capacity of heavy metals is not affected. It also shows good reusability in three regeneration cycles. And Mg5(CO3)4(OH)2·4H2O@pumice adsorption column showed the good removal efficiency of three heavy metals at different concentrations and different spatial velocities in the column experiment. Thus, it is believed that the Mg5(CO3)4(OH)2·4H2O@pumice is a promising adsorbent for the efficient removal of heavy metals.
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Affiliation(s)
- Yong Zhang
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - Yi-Fan Xiao
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - Guang-Song Xu
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - Min-Da Xu
- School of Materials and Chemical Engineering, Anhui JianZhu University, Hefei Anhui, 230601, People's Republic of China
- Anhui Advanced Building Materials Engineering Laboratory, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - De-Cai Wang
- School of Materials and Chemical Engineering, Anhui JianZhu University, Hefei Anhui, 230601, People's Republic of China
- Anhui Advanced Building Materials Engineering Laboratory, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - Zhen Jin
- School of Materials and Chemical Engineering, Anhui JianZhu University, Hefei Anhui, 230601, People's Republic of China.
- Anhui Advanced Building Materials Engineering Laboratory, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China.
| | - Jia-Qi Liu
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
| | - Li-Li Yang
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei Anhui, 230601, People's Republic of China
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Mg(OH)2 nanostructures using impure brine: optimization of synthesis parameters by Taguchi robust design and study of optical properties. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-020-04383-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Li S. Combustion synthesis of porous MgO and its adsorption properties. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2019. [DOI: 10.1007/s40090-019-0174-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Controlled synthesis and enhanced bacteriostatic activity of Mg(OH)2/Ag nanocomposite. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-017-3150-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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