Highly efficient and rapid Pb(<scp>ii</scp>) removal from acidic wastewater using superhydrophilic polystyrene phosphate resin

Sun, Junhua; Zhao, Xiuxian; Sun, Guoxin; Zhao, Heng; Yáng, Zhèn; Yan, Liangguo; Jiang, Xuchuan; Cui, Yu

doi:10.1039/d2nj03220a

Cited by 4 publications

(3 citation statements)

References 61 publications

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“…Second, HDU-1 can selectivly remove the cationic organic dyes with different sizes and shape based on size-dependent mode. As shown in Figure 7, MB + and BG + were completely adsorbed while RhB + were hardly removed because the molecular sizes of linear MB + of 1.57 × 0.78 × 0.40 nm 3 and subtriangular BG + of 1.81 × 1.33 × 0.63 nm 3 are smaller than that of RhB + of 1.85 × 1.34 × 0.87 nm 3 . The color of the mixed MB + /RhB + and BG + /RhB + solution changed from purple to dark pink (Figure 8), demonstrating the selective adsorption of size-dependent.…”

Section: R Peer Review 6 Of 12mentioning

confidence: 99%

“…Therefore, the adsorption and removal of dyes before discharge is particularly important for the purpose of the protection of human health and ecological environments. Many organic dye treatment technologies, such as adsorption, membrane separation, photocatalytic degradation, biocatalytic degradation, microwave irradiation, etc., have been widely used in wastewater treatment [ 3 , 4 ]. Among these technologies, adsorption is taken into account to be one of the most feasible and economical methods to deal with organic dye water pollution.…”

Section: Introductionmentioning

confidence: 99%

“…As a new class of porous organic-inorganic hybrid material, metal-organic frameworks (MOFs) are constructed from metal ions/clusters and organic linkers through coordination bond [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. There are currently about 100,000 MOFs in the Cambridge database, far more than the types of silica and zeolite (1000).…”

Section: Introductionmentioning

confidence: 99%

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An Anionic Porous Indium-Organic Framework with Nitrogen-Rich Linker for Efficient and Selective Removal of Trace Cationic Dyes

et al. 2023

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Metal-organic frameworks (MOFs) with porosity and functional adjustability have great potential for the removal of organic dyes in the wastewater. Herein, an anionic porous metal-organic framework (MOFs) [Me2NH2]2In2[(TATAB)4(DMF)4]·(DMF)4(H2O)4 (HDU-1) was synthesized, which is constructed from a [In(OOC)4]− cluster and a nitrogen-rich linker H3TATAB (4,4′,4″-s-triazine-1,3,5-triyltri-p-aminobenzoic acid). The negatively charged [In(OOC)4]− cluster and uncoordinated –COOH on the linker result in one unit cell of HDU-1 having 8 negative sites. The zeta potential of -20.8 mV dispersed in pure water also shows that HDU-1 possesses negatively charged surface potential. The high electronegativity, water stability, and porosity of HDU-1 can facilitate the ion-exchange and Coulombic interaction. As expected, the HDU-1 exhibits high selectivity and removal rates towards trace cationic dyes with suitable size, such as methylene blue (MB) (96%), Brilliant green (BG) (99.3%), and Victoria blue B (VB) (93.6%).

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Section: R Peer Review 6 Of 12mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%