Development of lanthanum hydroxide loaded on molecular sieve adsorbent and mechanistic study for phosphate removal

Yuan, Lixia; Qiu, Zhaofu; Lu, Yunqing; Tariq, Muhammad; Yuan, Lin; Yang, Ji; Li, Zhen; Lyu, Shuguang

doi:10.1016/j.jallcom.2018.07.230

Cited by 30 publications

(1 citation statement)

References 52 publications

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“…Adsorption is commonly considered as one of the most widely applied and prospective techniques for its cost effective, scalable, reusable, and high e cient [9][10][11][12][13]. In spite of various kinds of adsorbents have been reported, the traditional adsorbent materials such as molecular sieve [14], mesoporous silica [15], activated carbon [16], and others [17][18][19]always display small adsorption amount, slow kinetics, low selectivity, and weak adsorption a nity for heavy metal ion, which attributed to the low surface areas, small pore sizes, and a low density of functional groups. Therefore, the development of a novel porous material that can simultaneously achieve the detection and adsorption of mercury ions is signi cant to effectively drive the e cient water remediation.…”

Section: Introductionmentioning

confidence: 99%

Dual-function Covalent Organic Polymers Rich in N, O, S Heteroatoms for Sensitive Detection and Efficient Capture of Mercury (II)

Zhu

Zhang

et al. 2023

Preprint

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As a serious threat to environmental safety and public health, mercury ((Hg2+) has been noted as a global hazard because of its high toxicity. Recently, significant effort has been invested in developing novel strategies for simultaneous detection and remove of Hg2+. Herein, we designed and synthesized three types of nitrogen-, oxygen- and sulfur-rich covalent organic polymers (COPs) for Hg2+ detection and adsorption from solutions. For comparison, the aldehydes building blocks containing one, two, or three thiophene rings condensed with the flexible hydrazide terephthalate to obtain the COPs named as HTDP-1, HTDP-2 and HTDP-3, respectively. With electron rich thiophene-bicyclic systems, the HTDP-2 exhibited a fast adsorption capacity for Hg2+ (91.2% within 10 min). In addition, the polymer also has excellent fluorescence properties, which can realize the fluorescence detection of Hg2+ in a with a detection limit of 0.70 ppm. This work provides a novel design concept for the rational construction of dual-function Hg2+ repair materials and broadens the application of COPs materials in the field of heavy metal ions detection and repair.

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Section: Introductionmentioning

confidence: 99%

Dual-function Covalent Organic Polymers Rich in N, O, S Heteroatoms for Sensitive Detection and Efficient Capture of Mercury (II)

Zhu

Zhang

et al. 2023

Preprint

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Effect of capping mode on control of phosphorus release from sediment by lanthanum hydroxide

Sun

Zhan

Lin

2023

Environ Sci Pollut Res

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Iron-loaded activated carbon cloth as CDI electrode material for selective recovery of phosphate

Sharker,

Gamaethiralalage,

et al. 2024

Environ Sci Pollut Res

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This study investigated the efficacy of oxidised iron-loaded activated carbon cloth (Fe-ACC) for selective recovery of phosphorous. The capacitive deionisation (CDI) technology was employed, for rapid removal of phosphate, with the aim of reducing the reliance on high alkalinity environment for the regeneration of Fe-ACC electrode. Multiple experimental parameters, including applied potential, pH, and co-existing ions, were studied. Additionally, the CDI system was tested on a real water matrix (Lake Ormstrup, Denmark) to elucidate the electrodes’ performance on selective recovery of phosphate. About 69 ± 10% of the adsorbed phosphate were released at pH 12 via pure chemical desorption, which was ~ 50% higher than that at pH 9. The CDI system successfully demonstrated the selective removal of phosphate from the lake water. It reduced the concentration of phosphate from 1.69 to 0.49 mg/L with a 71% removal efficiency, while the removal percentages of other anions, namely chloride, sulphate, bromide, nitrite, nitrate, and fluoride, were 10%, 7%, 1%, 1.5%, 4%, and 7%, respectively.

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Development of lanthanum hydroxide loaded on molecular sieve adsorbent and mechanistic study for phosphate removal

Cited by 30 publications

References 52 publications

Dual-function Covalent Organic Polymers Rich in N, O, S Heteroatoms for Sensitive Detection and Efficient Capture of Mercury (II)

Dual-function Covalent Organic Polymers Rich in N, O, S Heteroatoms for Sensitive Detection and Efficient Capture of Mercury (II)

Effect of capping mode on control of phosphorus release from sediment by lanthanum hydroxide

Iron-loaded activated carbon cloth as CDI electrode material for selective recovery of phosphate

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