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Article ; Online: Insights into the efficient water treatment over N-doped carbon nanosheets with layered minerals as template: The role of interfacial electron tunneling and transfer.

Cheng, Ziwen / Yin, Kexin / Xu, Xing / Yue, Qinyan / Gao, Baoyu / Gao, Yue

2024 Volume 469, Page(s) 133924

Abstract: Peroxymonosulfate (PMS) oxidation reactions have been extensively studied recently. Due to the high material cost and low catalytic capability, PMS oxidation technology cannot be effectively applied in an industrial water treatment process. In this work, ...

Abstract	Peroxymonosulfate (PMS) oxidation reactions have been extensively studied recently. Due to the high material cost and low catalytic capability, PMS oxidation technology cannot be effectively applied in an industrial water treatment process. In this work, we developed a modification strategy based on enhancing the neglected electron tunneling effect to optimize the intrinsic electron transport process of the catalyst. The 2D nitrogen-doped carbon-based nanosheets with small interlayer spacing were prepared by self-polymerization of dopamine hydrochloride inserted into the natural layered bentonite template. Systematic characterizations confirmed that the smaller layer spacing in the 2D nitride-doped carbon-based nanosheets reduces the depletion layer width. The weak electronic shielding effect derived by the small layer spacing on the material subsurface enhanced the bulk electron tunneling effect. More bulk electrons could be migrated to the catalyst surface to activate PMS molecules. The PMS activation system showed ultrafast oxidation capability to degrade organic pollutants and strong ability to resist interference from environmental matrixes due to the optimized electron transfer process. Furthermore, the developed membrane reactor exhibited strong catalytic stability during the continuous degradation of P-Chlorophenol (CP).
Language	English
Publishing date	2024-03-02
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1491302-1
ISSN	1873-3336 ; 0304-3894
ISSN (online)	1873-3336
ISSN	0304-3894
DOI	10.1016/j.jhazmat.2024.133924
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Article ; Online: Microcosmic mechanism analysis of the combined pollution of aged polystyrene with humic acid and its efficient removal by a composite coagulant.

Liu, Beibei / Gao, Yue / Yue, Qinyan / Guo, Kangying / Gao, Baoyu

Journal of hazardous materials

2023 Volume 459, Page(s) 132272

Abstract: The composite pollutants formed by aged polystyrene (APS) and natural organic matter are complex and harmful, which lead to the deterioration of water quality. In this work, the interaction mechanism between humic acid (HA) and APS was discussed by ... ...

Abstract	The composite pollutants formed by aged polystyrene (APS) and natural organic matter are complex and harmful, which lead to the deterioration of water quality. In this work, the interaction mechanism between humic acid (HA) and APS was discussed by investigating the changes in their functional groups. Besides, a novel polyaluminum-titanium chloride composite coagulant (PATC) was prepared, and its binding behaviors with HA@APS under different pH conditions were analyzed from a microscopic perspective. It was found that at pH 4, π-π conjugation was the dominant interaction between HA and APS. And the main removal mechanism of HA@APS by PATC was surface complexation. With the increase of pH, π-π conjugation, n-π electron donor-acceptor interaction (EDA), and hydrogen bonding gradually dominated the interaction between APS and HA. At pH 7, PATC hydrolyzed to form various polynuclear Al-Ti species, which could meet the demand for different binding sites of HA@APS. Under alkaline conditions, HB and n-π EDA in HA@APS were weakened, while π-π conjugation held a dominant position again. At this time, the main coagulation mechanism of PATC changed from charge neutralization to sweeping action, accompanied by hydrogen bonding. ENVIRONMENTAL IMPLICATION: Microplastics (MPs) have attracted the public's attention due to their potential toxicity to humans. The combined pollution of aged microplastics and humic acid (HA) will bring great harm to aquatic environment. The development of novel composite coagulants is hopeful to efficiently remove MPs and their combined pollutants. Elucidating the interactions between HA and aged MPs is helpful to understand the transformation and fate of MPs in actual environments, and to reveal the removal mechanism of composite pollutants by coagulation. The findings presented here will provide theoretical guidance for addressing the challenges of coagulation technology in treating new pollutants in practice.
Language	English
Publishing date	2023-08-10
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1491302-1
ISSN	1873-3336 ; 0304-3894
ISSN (online)	1873-3336
ISSN	0304-3894
DOI	10.1016/j.jhazmat.2023.132272
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Article ; Online: New insights into the fate and interaction mechanisms of hydrolyzed aluminum-titanium species in the removal of aged polystyrene.

Liu, Beibei / Guo, Kangying / Yue, Qinyan / Gao, Yue / Gao, Baoyu

Journal of hazardous materials

2023 Volume 464, Page(s) 133010

Abstract: Polyaluminum-titanium chloride composite coagulant (PATC) has been demonstrated to be a promising coagulant in microplastics (MPs) treatment. However, the interaction process between the dominant species of PATC and MPs remains unclear, which will hinder ...

Abstract	Polyaluminum-titanium chloride composite coagulant (PATC) has been demonstrated to be a promising coagulant in microplastics (MPs) treatment. However, the interaction process between the dominant species of PATC and MPs remains unclear, which will hinder our understanding of the coagulation mechanisms. Here, the species transformation of PATC during its interaction with aged polystyrene powder (APSp) was studied. The results showed that the rise of O-containing functional groups in APSp increased the possibility of forming C-O-M coordination bonds and hydrogen bonds between APSp and PATC, which improved the removal of PSp. Furthermore, Al
Language	English
Publishing date	2023-11-16
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1491302-1
ISSN	1873-3336 ; 0304-3894
ISSN (online)	1873-3336
ISSN	0304-3894
DOI	10.1016/j.jhazmat.2023.133010
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Article ; Online: The suitability and mechanism of polyaluminum-titanium chloride composite coagulant (PATC) for polystyrene microplastic removal: Structural characterization and theoretical calculation.

Liu, Beibei / Gao, Yue / Yue, Qinyan / Guo, Kangying / Gao, Baoyu

Water research

2023 Volume 232, Page(s) 119690

Abstract: Microplastics (MPs) particles bring potential threats to the aqueous environment, and the coexistence of natural organic matter (NOM) enhances their toxicity. Coagulation is an efficient method for particle removal and exploring the binding sites and ... ...

Abstract	Microplastics (MPs) particles bring potential threats to the aqueous environment, and the coexistence of natural organic matter (NOM) enhances their toxicity. Coagulation is an efficient method for particle removal and exploring the binding sites and modes of the coagulant hydrolysates with MPs in the presence of NOM is essential to understand the coagulation mechanism. In this study, a novel polymerized polyaluminum-titanium chloride composite coagulant (PATC) was prepared and used to remove polystyrene (PS). It was found that PATC could compress or even destroy the surface layer of the negatively charged PS. In comparison to PAC and PTC, PATC was more efficient in decreasing the energy barrier of the PS particles and increasing their aggregation rate over a wider pH range. The results of the Extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) calculation revealed that the interaction between the hydrolysates of PATC and PS was mainly polar interaction (V
MeSH term(s)	Microplastics ; Plastics ; Polystyrenes ; Chlorides/chemistry ; Titanium ; Water Purification/methods ; Water Pollutants, Chemical/chemistry
Chemical Substances	Microplastics ; Plastics ; Polystyrenes ; Chlorides ; Titanium (D1JT611TNE) ; 4-anisoyl-3-(1,2,2-trimethylcyclopentane carboxylic acid) (82801-37-4) ; aluminum oxychloride (1327-41-9) ; Water Pollutants, Chemical
Language	English
Publishing date	2023-02-02
Publishing country	England
Document type	Journal Article
ZDB-ID	202613-2
ISSN	1879-2448 ; 0043-1354
ISSN (online)	1879-2448
ISSN	0043-1354
DOI	10.1016/j.watres.2023.119690
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Article ; Online: Sono-enhanced heterogeneous Fenton catalysis: magnetic halloysite nanotube synthesis and accelerated free radical generation.

Dan, Hongbing / Han, Songlin / Gao, Yue / Gao, Baoyu / Yue, Qinyan

Environmental science and pollution research international

2023 Volume 30, Issue 39, Page(s) 90799–90813

Abstract: Although heterogeneous Fenton catalysis has captured increasing attention compared to its homogeneous counterpart, it still confronts some inherent drawbacks in use, such as the dilemma in solid-liquid separation and greater mass transfer resistance. ... ...

Abstract	Although heterogeneous Fenton catalysis has captured increasing attention compared to its homogeneous counterpart, it still confronts some inherent drawbacks in use, such as the dilemma in solid-liquid separation and greater mass transfer resistance. Driven by the acoustic cavitation effect, herein, a sono-enhanced heterogeneous Fenton catalysis process was built to overcome the above two shortcomings, by rapidly synthesizing magnetic Fenton-like catalysts and accelerating electron transfer during the catalytic reaction. The results show that, compared to the traditional chemical coprecipitation method, Fe
MeSH term(s)	Clay ; Nanotubes ; Free Radicals ; Catalysis ; Magnetic Phenomena ; Hydrogen Peroxide
Chemical Substances	Clay (T1FAD4SS2M) ; Free Radicals ; Hydrogen Peroxide (BBX060AN9V)
Language	English
Publishing date	2023-07-18
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-023-28623-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The suitability and mechanism of polyaluminum-titanium chloride composite coagulant (PATC) for polystyrene microplastic removal: Structural characterization and theoretical calculation

Liu, Beibei / Gao, Yue / Yue, Qinyan / Guo, Kangying / Gao, Baoyu

Water Research. 2023 Apr., v. 232 p.119690-

2023

Abstract	Microplastics (MPs) particles bring potential threats to the aqueous environment, and the coexistence of natural organic matter (NOM) enhances their toxicity. Coagulation is an efficient method for particle removal and exploring the binding sites and modes of the coagulant hydrolysates with MPs in the presence of NOM is essential to understand the coagulation mechanism. In this study, a novel polymerized polyaluminum-titanium chloride composite coagulant (PATC) was prepared and used to remove polystyrene (PS). It was found that PATC could compress or even destroy the surface layer of the negatively charged PS. In comparison to PAC and PTC, PATC was more efficient in decreasing the energy barrier of the PS particles and increasing their aggregation rate over a wider pH range. The results of the Extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) calculation revealed that the interaction between the hydrolysates of PATC and PS was mainly polar interaction (VAB), such as hydrogen bonding. The peak intensity and peak shift in Fourier-transformed infrared (FTIR) and X-ray photoelectron spectra (XPS) were analyzed to further explore the interaction between the hydrolysates of PATC and PS. It was found that hydrogen bonding existed between the -OH group of PATC and the aliphatic C-H and C=O groups of PS. And the main interaction between HA and PS was the π-π* conjugation and hydrogen bonding between the -COOH, -OH, and C=O groups of HA and the C=O and aliphatic C-H groups of PS. Therefore, in the HA@PS system, the active sites of HA (e.g. -COOH and -OH) and PS (e.g., C=O and aliphatic C-H) binding with the coagulants were occupied, which accordingly led to the dramatic decline in the removal efficiency of both HA and PS. In actual lake water treatment, although the removal efficiency of PS was significantly poor, PATC performed better for PS removal than PAC and PTC. Besides, the effluent pH was maintained at 6.81±0.08, which met the requirements of the subsequent water treatment process. This study provides systematic knowledge for understanding the interaction between PS, NOM, and coagulant hydrolysates, and further confirms the application potential of PATC for MPs removal.
Keywords	X-radiation ; chlorides ; coagulants ; coagulation ; energy ; hydrogen ; lakes ; microplastics ; organic matter ; pH ; polymerization ; polystyrenes ; research ; toxicity ; water ; water treatment ; Composite titanium-based coagulant ; Coagulation mechanisms ; XDLVO theory ; Lake water treatment
Language	English
Dates of publication	2023-04
Publishing place	Elsevier Ltd
Document type	Article ; Online
ZDB-ID	202613-2
ISSN	1879-2448 ; 0043-1354
ISSN (online)	1879-2448
ISSN	0043-1354
DOI	10.1016/j.watres.2023.119690
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Oxygen vacancies-mediated CuO@N-doped carbon nanocomposites for non-radical-dominated photothermal catalytic degradation of contaminants

Chen, Yi / Dai, Yuntong / Li, Yanwei / Hou, Zexi / Gao, Baoyu / Yue, Qinyan / Li, Qian

Journal of Cleaner Production. 2023 Feb., v. 389 p.136054-

2023

Abstract: Efficient molecular oxygen activation (MOA) is a critical step for most of the environmental catalysis applications for generating reactive oxygen species (ROS), which is often limited by the lack of energy to excite electrons. The emergence of ... ...

Abstract	Efficient molecular oxygen activation (MOA) is a critical step for most of the environmental catalysis applications for generating reactive oxygen species (ROS), which is often limited by the lack of energy to excite electrons. The emergence of photothermal catalyst provides an opportunity to make effective use of solar energy to energize electrons for boosting activation of molecular oxygen. Herein, CuO nanoparticles wrapped into nitrogen-doped carbon nanocomposites (CuO@NCs) with abundant oxygen vacancies (OVs) were prepared through a facile one-step synthesis using carboxymethyl chitosan hydrogel as a template. The as-obtained CuO@NCs exhibited excellent photothermal catalytic properties under visible-light irradiation to achieve efficient molecular oxygen activation, thus allowing the effective degradation of bisphenol F (BPF) in complex aqueous environments and actual water matrices. Density functional theory (DFT) calculations reveal that both the enhanced properties of OVs for molecular oxygen adsorption and the accelerated properties of graphitic N for electron transfer contribute significantly to the MOA and charge separation efficiency, resulting in a large amount of ROS. Molecular oxygen is converted to superoxide (·O₂⁻) and ultimately to singlet oxygen (¹O₂), which is the dominant ROS responsible for contaminants degradation. Additionally, a photothermal catalytic degradation pathway of BPF was proposed based on the product detection and theoretical calculations. This study provides an effective method for the in-situ fabrication of metal@N-doped carbon nanocomposite photothermal catalysts and elucidates the mechanism of the photothermal catalytic activation of molecular oxygen for contaminants degradation, providing a promising approach for making effective use of solar energy for environmental remediation.
Keywords	adsorption ; bisphenol F ; carbon ; catalysts ; catalytic activity ; chitosan ; density functional theory ; electron transfer ; energy ; hydrogels ; irradiation ; light ; nanocomposites ; nanoparticles ; oxygen ; remediation ; singlet oxygen ; solar energy ; Photothermal catalysis ; CuO ; Nitrogen-doped carbon ; Oxygen vacancies ; Molecular oxygen activation
Language	English
Dates of publication	2023-02
Publishing place	Elsevier Ltd
Document type	Article ; Online
ISSN	0959-6526
DOI	10.1016/j.jclepro.2023.136054
Database	NAL-Catalogue (AGRICOLA)

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Article: Flocculation performance of papermaking sludge-based flocculants in different dye wastewater treatment: Comparison with commercial lignin and coagulants

Feng, Qiyun / Gao, Baoyu / Yue, Qinyan / Guo, Kangying

Chemosphere. 2021 Jan., v. 262

2021

Abstract: In this study, papermaking sludge-based flocculant (PSBF) and commercial lignin-based flocculant (LBF) have been synthesized by the same graft copolymerization procedures. The structures of alkaline lignin (AL), commercial lignin and the two flocculants ... ...

Abstract	In this study, papermaking sludge-based flocculant (PSBF) and commercial lignin-based flocculant (LBF) have been synthesized by the same graft copolymerization procedures. The structures of alkaline lignin (AL), commercial lignin and the two flocculants were characterized by the modern analytical methods, also, the molecular weights and charge properties were analyzed. The effects of coagulant/flocculant dosages, pH conditions and coexistent dye auxiliaries on flocculation efficiencies were studied in the treatment of reactive turquoise blue (RTB) and disperse red (DR) dye wastewater. The flocculation experiments indicated that PSBF and LBF performed better in the removals of RTB and DR than commercial PAC and PAM. PSBF and LBF were insensitive to pH variation due to their strong charge neutralizing abilities and bridging effects even with the pH changing. In the existence of dye auxiliaries, PSBF and LBF could also exhibit superior decolorization efficiencies by slightly enlarging their dosages. Furthermore, PSBF and LBF had similar flocculation behaviors under all measured experimental conditions, suggesting that PSBF also had excellent flocculation performances even if it was prepared from papermaking sludge.
Keywords	coagulants ; copolymerization ; decolorization ; dyes ; flocculants ; flocculation ; lignin ; pH ; papermaking ; sludge ; wastewater ; wastewater treatment
Language	English
Dates of publication	2021-01
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-light
ZDB-ID	120089-6
ISSN	1879-1298 ; 0045-6535 ; 0366-7111
ISSN (online)	1879-1298
ISSN	0045-6535 ; 0366-7111
DOI	10.1016/j.chemosphere.2020.128416
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Article ; Online: Coagulation performance and mechanism of different hydrolyzed aluminum species for the removal of composite pollutants of polyethylene and humic acid.

Shao, Yanlei / Liu, Beibei / Guo, Kangying / Gao, Yue / Yue, Qinyan / Gao, Baoyu

Journal of hazardous materials

2023 Volume 465, Page(s) 133076

Abstract: Microplastics (MPs) and natural organic matter (NOM) composite pollutants have become emerging contaminants with potential threats. Coagulation has been widely used to remove MPs and NOM, but the underlying mechanisms for the removal of MPs-NOM composite ...

Abstract	Microplastics (MPs) and natural organic matter (NOM) composite pollutants have become emerging contaminants with potential threats. Coagulation has been widely used to remove MPs and NOM, but the underlying mechanisms for the removal of MPs-NOM composite pollutants by hydrolyzed Al species remain unclear. Therefore, the coagulation performance and mechanism of AlCl
Language	English
Publishing date	2023-11-25
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1491302-1
ISSN	1873-3336 ; 0304-3894
ISSN (online)	1873-3336
ISSN	0304-3894
DOI	10.1016/j.jhazmat.2023.133076
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Article ; Online: Versatile crosslinking synthesis of an EDTA-modified UiO-66-NH

Gao, Yue / Yao, Lifeng / Zhang, Shengzu / Yue, Qinyan / Yin, Weiyan

Environmental pollution (Barking, Essex : 1987)

2022 Volume 316, Issue Pt 2, Page(s) 120622

Abstract: The metal-organic frameworks/cotton fabric composites (MOFs/CFCs) have emerged as a new type of prospective materials for environmental cleanup, due to their convenient recyclability and high removal efficiency towards hazardous pollutants. However, ... ...

Abstract	The metal-organic frameworks/cotton fabric composites (MOFs/CFCs) have emerged as a new type of prospective materials for environmental cleanup, due to their convenient recyclability and high removal efficiency towards hazardous pollutants. However, their practical applications are limited by complicated synthetic conditions, insufficient interface bonding and poor adsorption capacity. Herein, for the first time, a robust ethylenediaminetetraacetic acid (EDTA)-functionalized MOFs/CFC is prepared based on UiO-66-NH
MeSH term(s)	Coloring Agents ; Edetic Acid ; Organophosphates ; Water Pollutants, Chemical/chemistry ; Metals, Heavy ; Adsorption
Chemical Substances	Coloring Agents ; Edetic Acid (9G34HU7RV0) ; UiO-66 ; Organophosphates ; Water Pollutants, Chemical ; Metals, Heavy
Language	English
Publishing date	2022-11-09
Publishing country	England
Document type	Journal Article
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2022.120622
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