In-situ improved phenol adsorption at ions-enrichment interface of porous adsorbent for simultaneous removal of copper ions and phenol

Han, Jiaxi; Du, Zhongjie; Zou, Wei; Li, Hangquan; Zhang, Chen

doi:10.1016/j.cej.2014.10.018

Cited by 44 publications

(9 citation statements)

References 50 publications

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“…Activation of suitable precursors such as lignocellulosic biomass results in formation of highly porous activated carbons whose large surface areas facilitate their performance as adsorbents [17][18][19][20][21][22][23][24][25][26]. High porosity is highly desirable for enhanced performance of adsorbents since it facilitates high mass transfer fluxes and catalyst/adsorbate loading.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal conversion of biomass waste to activated carbon with high porosity: A review

Jain

Balasubramanian

Madapusi

2016

Chemical Engineering Journal

929

414

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Section: Introductionmentioning

confidence: 99%

Hydrothermal conversion of biomass waste to activated carbon with high porosity: A review

Jain

Balasubramanian

Madapusi

2016

Chemical Engineering Journal

929

414

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“…Adopting the functional monomers to synthesizing polymers with porous structures has been a vital issue when it is considered to eliminate the target contaminant [12,13]. But low adsorption capacity of these polymeric adsorbents for some water-soluble aromatic pollutants was inhibited to widely application [14,15]. To quest the appropriate adsorbent for phenol-contained wastewater removal, a great many inorganic nanoparticles such as kaolinite [16], rectorite [17] and mesoporous carbon [18] are also investigated to adsorb phenol.…”

Section: Introductionmentioning

confidence: 99%

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

et al. 2016

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The organic-inorganic self-doped poly (vinyltrimethoxy silane-ethylene glycol dimethacrylate) (VE resin) was synthesized by solution polymerization, hydrolysis and dehydration condensation. In this method, ethylene glycol dimethacrylate (EGDMA) was used as cross-linked reagent to form a three-dimensional network structure. Then, the system was prepared by radical polymerization in the presence of the hydrolysis of -OCH 3 and the dehydration condensation of Si-OH. The maximum adsorption capacity 75.68 mg g -1 was achieved when pH was 6, the contact time 60 min, the adsorbent dose 0.1 g, the initial concentration 3000 mg L -1 and the temperature 293 K. The adsorption kinetics followed the pseudo-second-order kinetic model, and the intra-particle diffusion was but not the only rate-limiting step. Adsorption isotherms of phenol were linearly correlated and found to be well represented by the Freundlich model. Thermodynamic parameters such as changes in the enthalpy (DH), free energy (DG) and entropy (DS) indicated that the adsorption process of phenol on VE resin were physical and exothermic. After four regeneration recycles, the adsorption capacity of VE resin remained at 95.04 % of the initial value, which illustrated that it possessed good regeneration capacity.

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“…In recent decades, heavy metals and toxic organic pollutants produced from manufacturing processes and petroleum refineries are one of the major environmental consequences of rapid industrialization. , Mercury ion (Hg 2+ ) and phenol are the most widespread toxic pollutants in these wastewaters. What makes it worse is that the cooccurrence of Hg 2+ and phenol in wastewaters leads to greatly augmented damage to protein synthesis as well as central nervous and immune systems in human bodies due to the additional or even synergistic effects. − These health hazards of Hg 2+ and phenol contamination have prompted environmentalists to set acute goals to identify and quantify such pollutants as a part of sustainable development agendas.…”

Section: Introductionmentioning

confidence: 99%

HRP@ZIF-8/DNA Hybrids: Functionality Integration of ZIF-8 via Biomineralization and Surface Absorption

Wang

Zhi

Lian

et al. 2019

ACS Sustainable Chem. Eng.

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Zeolitic imidazolate framework-8 (ZIF-8) has been successfully employed as a protective coating to encapsulate enzyme via various immobilization strategies by recent works. However, in all of the research, ZIF-8 only acts as the enzyme-immobilization matrix. In this work, by exploiting the fluorescence quenching properties of the ZIF-8 surface, we for the first time properly amalgamated the basic functionalities of ZIF-8 for horseradish peroxidise (HRP) encapsulation and fluorescence quencher by constructing HRP@ZIF-8/DNA hybrids and gave the successive detection of Hg2+ and phenol. Specifically, we introduced a biomimetic mineralization approach for facile encapsulation of HRP by ZIF-8 with high HRP-encapsulation efficiency (98.4%). Indeed, the HRP@ZIF-8 biocomposite functioned as an active biocatalyst under biologically challenging conditions, such as alkaline condition, high temperature, organic solvent, long-term storage, and continuous operation. After addition of FAM-labeled single-stranded DNA (ssDNA), the HRP@ZIF-8/DNA hybrid system could achieve rapid, specific, and sensitive detection of Hg2+ with a detection limit as low as 0.22 nM. Subsequently, benefiting from excellent catalytic activity of as-obtained HRP@ZIF-8 biocomposite, which could be successively utilized as a colorimetric sensor for sensitive measurement of phenol in micromolar level. It is believed that our strategy provides a convenient and efficient method for functionality integration of ZIF-8 without any complex modification. To the field of biosensing, our discovery broadens up the potential of bio-ZIF-8 composite for successive detection of two pollutants.

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In-situ improved phenol adsorption at ions-enrichment interface of porous adsorbent for simultaneous removal of copper ions and phenol

Cited by 44 publications

References 50 publications

Hydrothermal conversion of biomass waste to activated carbon with high porosity: A review

Hydrothermal conversion of biomass waste to activated carbon with high porosity: A review

A novel polymeric adsorbent by a self-doped manner: synthesis, characterization, and adsorption performance to phenol from aqueous solution

HRP@ZIF-8/DNA Hybrids: Functionality Integration of ZIF-8 via Biomineralization and Surface Absorption

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