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Article ; Online: Development of a CH

He, Xin / E, Huanyu / Ding, Guoyu

Analytical methods : advancing methods and applications

2023 Volume 15, Issue 10, Page(s) 1286–1296

Abstract: In most of the near-infrared studies, near-infrared spectra (NIRS) were often mathematically treated. However, these algorithms selected a large number of variables and latent variables, and they caused the over-fitting phenomenon, which became very ... ...

Abstract	In most of the near-infrared studies, near-infrared spectra (NIRS) were often mathematically treated. However, these algorithms selected a large number of variables and latent variables, and they caused the over-fitting phenomenon, which became very common. The large number of variables made it impossible to extract the "chemical information" directly from the NIRS. To build robust and interpretable mathematical models, the non-dominated sorting genetic-II-competitive adaptive reweighted sampling (NSGAII-CARS) algorithm was proposed to determine influential functional groups for quantitative analysis. In this research, data on a primary mixture of two amino acids (AAs), namely NH
Language	English
Publishing date	2023-03-09
Publishing country	England
Document type	Journal Article
ZDB-ID	2515210-5
ISSN	1759-9679 ; 1759-9660
ISSN (online)	1759-9679
ISSN	1759-9660
DOI	10.1039/d2ay02072f
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Article ; Online: Simultaneous measurement of multiple labile heavy metals in soils by diffusive gradients in thin film technique

Chen, Rui / Liu, Jiaxing / Ding, Guoyu / Ren, Fumin / Shi, Rongguang / Lv, Jungang / Cheng, Jing

J Soils Sediments. 2023 Feb., v. 23, no. 2 p.958-972

2023

Abstract: PURPOSE: Development of new binding gels for rapid and simultaneous quantification of bioavailability concentrations of various heavy metals in soils by diffusive gradients in thin film technique. METHODS: Four binding gels including zinc-aluminum ... ...

Abstract	PURPOSE: Development of new binding gels for rapid and simultaneous quantification of bioavailability concentrations of various heavy metals in soils by diffusive gradients in thin film technique. METHODS: Four binding gels including zinc-aluminum hydrogel (ZnAl-LDH), ethylenediaminetetraacetic acid intercalated zinc-aluminum hydrogel (ZnAl-EDTA-LDHs), polyglutamic acid (PGA), and polyglutamic acid–sodium alginate resin (SA-PGA) were prepared and used for the simultaneous measurement of Cr, Ni, Cu, Cd, and Pb. RESULTS: The adsorption process reached equilibrium in 2 h, which could be considered a pseudo-second-order reaction. Three mol L⁻¹ nitric acid was the best eluent with elution efficiency over 91% for the five heavy metals. Then, SA-PGA gel was assembled into DGT device (SA-PGA-DGT). Its performance was virtually unaffected by pH (5–9), ionic strength (1–50 mM), and soil properties with adsorption capacities 5.02 μg cm⁻², 11.38 μg cm⁻², 8.16 μg cm⁻², 17.11 μg cm⁻², and 89.43 μg cm⁻² for Cr, Ni, Cu, Cd, and Pb, respectively. A good linear correlation was observed between the concentrations of Cr, Ni, Cu, Cd, and Pb determined by SA-PGA-DGT in soil samples from Tanggu District in China and the exchangeable contents of the five metals determined by the Tessier method, with R values of 0.64, 0.63, 0.59, 0.72, and 0.64 (p < 0.01). CONCLUSION: SA-PGA gel exhibited the best adsorption properties among the four gels. SA-PGA-DGT can be used as a reliable tool for rapid and simultaneous quantification of bioavailability concentrations of multiple heavy metals.
Keywords	EDTA (chelating agent) ; adsorption ; alginates ; bioavailability ; films (materials) ; hydrogels ; ionic strength ; nitric acid ; pH ; polyglutamic acid ; soil ; China
Language	English
Dates of publication	2023-02
Size	p. 958-972.
Publishing place	Springer Berlin Heidelberg
Document type	Article ; Online
ZDB-ID	2050898-0
ISSN	1614-7480 ; 1439-0108
ISSN (online)	1614-7480
ISSN	1439-0108
DOI	10.1007/s11368-022-03346-1
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Article ; Online: Remediation of Cr(VI)-contaminated soil mixed with chromite ore processing residue by ferrous sulfate and enzyme residue

Shi, Kaiyu / Zhang, Yuxiu / Ding, Guoyu / Wang, Xingrun / Yan, Xianghua / Pan, Hong / Zhao, Yuan

Science of the Total Environment. 2023 Sept., v. 892 p.164743-

2023

Abstract: In this study, Cr(VI)-contaminated soil mixed with COPR by using ferrous sulfate (FeSO₄), enzyme residue (ER), and their combination under aerobic or anaerobic condition were investigated. The concentration of Cr(VI) decreased from 1498.05 to 104.63 mg ... ...

Abstract	In this study, Cr(VI)-contaminated soil mixed with COPR by using ferrous sulfate (FeSO₄), enzyme residue (ER), and their combination under aerobic or anaerobic condition were investigated. The concentration of Cr(VI) decreased from 1498.05 to 104.63 mg kg⁻¹ after the simultaneous addition of FeSO₄ (30 %, w/w as FeSO₄·7H₂O) and ER (30 %, w/w) at 45 d under the anaerobic condition with a reduction efficiency of 93.02 %, which is higher than that by single FeSO₄ (72.39 %) or ER (75.47 %) under the anaerobic condition. XRD, XPS, FTIR, and fluorescence spectroscopy were conducted to characterize soil and ER composition. Metagenomic analysis was performed to reveal the reduction mechanisms of FeSO₄ and ER. The anaerobic condition with lower Eh was beneficial for Cr(VI) reduction than aerobic condition, and Eh was the main driver for the evolution of Cr(VI) reduction-related microorganisms. Moreover, the addition of ER enriched the organic matter and microbials in the soil. During the decomposition of organic matter under the anaerobic condition, organic acids were generated, leading to a decrease in pH and promoting the release of Cr(VI) from minerals. They also served as electron donors in Cr(VI) reduction. Additionally, the addition of excess FeSO₄ stimulated the growth of iron-reducing bacteria and sulfate-reducing bacteria, facilitating to Cr(VI) reduction. Metagenomic analysis showed that Acinetobacter, related to the nemA and nfsA genes, was the dominant Cr(VI) reduction genus. Thus, the combination of FeSO₄ and ER is a promising method for the remediation of Cr(VI)-contaminated soils mixed with COPR.
Keywords	Acinetobacter ; environment ; enzymes ; evolution ; ferrous sulfate ; fluorescence emission spectroscopy ; metagenomics ; organic matter ; pH ; remediation ; soil ; Cr(VI) ; Chromite ore processing residue ; Reduction microbial community and genes
Language	English
Dates of publication	2023-09
Publishing place	Elsevier B.V.
Document type	Article ; Online
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2023.164743
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Article ; Online: Ball-milled sulfide iron-copper bimetals based composite permeable materials for Cr (VI) removal: Effects of preparation parameters and kinetics study

Yang, Zhenghan / Ding, Guoyu / Yan, Lili / Wang, Runkai / Zhang, Wenqi / Wang, Xingrun / Rao, Pinhua

Chemosphere. 2023 Oct., v. 338 p.139388-

2023

Abstract: Zero-valent iron (ZVI) and modified ZVI have been investigated extensively for groundwater remediation. However, ZVI based powder was difficult to be applied directly as permeable reactive barrier (PRB) materials due to their low water permeability and ... ...

Abstract	Zero-valent iron (ZVI) and modified ZVI have been investigated extensively for groundwater remediation. However, ZVI based powder was difficult to be applied directly as permeable reactive barrier (PRB) materials due to their low water permeability and usage rate. In this study, sulfide iron-copper bimetal was prepared by ball milling, which is environment-friendly without second contamination. The optimal preparation parameters of sulfide iron-copper bimetal for Cr(VI) removal were determined (Cu/Fe ratio (w/w), 0.018; FeS/Fe ratio (w/w), 0.1213; ball milling speed, 450 rpm; ball milling time, 5 h). A composite permeable material was prepared by sintering a mixture of sulfide iron-copper bimetal, sludge, and kaolin. The parameters for composite permeable material preparation including sludge content and particle size, and sintering time were optimized, which were 60%, 60–75 mesh, and 4 h, respectively. The optimal composite permeable material was characterized by SEM-EDS, XRD, and FTIR. The results demonstrated preparation parameters can affect the hydraulic conductivity and hardness of composite permeable material. High sludge content, small particles size, and moderate sintering time resulted in high permeability of composite permeable material and were beneficial for Cr(VI) removal. The dominant Cr(VI) removal mechanism was reduction, and the reaction followed pseudo-first order kinetics. Conversely, low sludge content and large particle size, and long sintering time lead to low permeability of composite permeable material. Chromate removal was mainly by chemisorption following pseudo-second order kinetics. The hydraulic conductivity and hardness of the optimal composite permeable material achieved 1.732 cm/s and 50, respectively. The results of column experiments indicated that its Cr(VI) removal capacity was 0.54 mg/g, 0.39 mg/g and 0.29 mg/g at pH 5, 7 and 9, respectively. The ratio of Cr(VI) to Cr(III) on composite permeable material surface was similar under acidic and alkaline conditions. This study will provide an effective reactive material of PRB for field application.
Keywords	chromates ; groundwater ; hardness ; hydraulic conductivity ; iron ; kaolin ; pH ; particle size ; permeability ; remediation ; sludge ; sulfides ; Ball milling ; Hexavalent chromium ; Sulfide iron-copper bimetals ; Composite permeable materials ; Kinetics study
Language	English
Dates of publication	2023-10
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version
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.2023.139388
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Article: Vitexnegheteroin M, a new phenolic glycoside from Vitex negundo var. heterophylla

Huang, Ye / Ding, Guo-Yu / Hu, Ping

Natural product research. 2021 May 3, v. 35, no. 9

2021

Abstract: The investigation of chemical constituents from the leaves and seeds of Vitex negundo var. heterophylla resulted in the isolation of one new phenolic glycoside, vitexnegheteroin M (1), together with eleven known compounds (2-12). Their structures were ... ...

Abstract	The investigation of chemical constituents from the leaves and seeds of Vitex negundo var. heterophylla resulted in the isolation of one new phenolic glycoside, vitexnegheteroin M (1), together with eleven known compounds (2-12). Their structures were elucidated through extensive spectroscopic analyses including 1D, 2D NMR, HR-ESI-MS, and by comparison with the literature. Among them, compound 3 was obtained from the Vitex genus for the first time, and compounds 4-8, and 10-12 were isolated from this plant for the first time. Their anti-inflammatory activities were investigated by measuring nitric oxide (NO) production in lipopolysaccharide (LPS)-induced murine microglial BV-2 cells. As the obtained results, compound 9 showed the strongest inhibitory activity against LPS-stimulated NO production in BV-2 cells with IC₅₀ value ranging from 8.65 ± 0.67 μM.
Keywords	Vitex negundo ; glycosides ; lipopolysaccharides ; mice ; nitric oxide ; research
Language	English
Dates of publication	2021-0503
Size	p. 1518-1524.
Publishing place	Taylor & Francis
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2185747-7
ISSN	1478-6427 ; 1478-6419
ISSN (online)	1478-6427
ISSN	1478-6419
DOI	10.1080/14786419.2019.1656628
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Article ; Online: Remediation of Cr(VI)-contaminated soil mixed with chromite ore processing residue by ferrous sulfate and enzyme residue.

Shi, Kaiyu / Zhang, Yuxiu / Ding, Guoyu / Wang, Xingrun / Yan, Xianghua / Pan, Hong / Zhao, Yuan

The Science of the total environment

2023 Volume 892, Page(s) 164743

Abstract: In this study, Cr(VI)-contaminated soil mixed with COPR by using ferrous sulfate ( ... ...

Abstract	In this study, Cr(VI)-contaminated soil mixed with COPR by using ferrous sulfate (FeSO
MeSH term(s)	Ferrous Compounds/chemistry ; Chromium/analysis ; Industrial Waste/analysis ; Soil ; Soil Pollutants/analysis
Chemical Substances	ferrous sulfate (39R4TAN1VT) ; chromium hexavalent ion (18540-29-9) ; Ferrous Compounds ; Chromium (0R0008Q3JB) ; Industrial Waste ; Soil ; Soil Pollutants
Language	English
Publishing date	2023-06-10
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2023.164743
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Article ; Online: Preparation and biological evaluation of antibody targeted metal-organic framework drug delivery system (TDDS) in Her2 receptor-positive cells.

Chen, Qing / Zhang, Xiao-Nan / Ding, Guo-Yu / Ma, Yu-Fei / Zhou, Ming-Sheng / Zhang, Yang

Talanta

2023 Volume 269, Page(s) 125380

Abstract: In this study, we designed and prepared a trastuzumab-coupled drug delivery system with pH response characteristics using mesoporous zeolitic imidazolate framework-8 (ZIF-8) as the carrier, Trastuzumab@ZIF-8@DOX. As results, the targeted drug delivery ... ...

Abstract	In this study, we designed and prepared a trastuzumab-coupled drug delivery system with pH response characteristics using mesoporous zeolitic imidazolate framework-8 (ZIF-8) as the carrier, Trastuzumab@ZIF-8@DOX. As results, the targeted drug delivery system (TDDS) ultimately showed high drug loading and good biocompatibility. The cumulative curve of drug release indicated that the early leakage levels were low under neutral pH conditions. However, under acidic pH conditions, there was an effective enhancement in drug release, indicating the presence of an explicit pH-triggered drug release mechanism. The results indicate that the prepared nanoparticles have the potential to serve as drug delivery systems, as they can release the loaded drug in a controlled manner. The results of cellular uptake tests showed that the uptake of the nanoparticles was greatly enhanced by the internalization mediated by the HER2 antibody. This finding indicates that the prepared nanoparticles can selectively target cancer cells that overexpress HER2. When the doxorubicin dose was 5 μg/ml, the survival rate of SK-BR-3 cells (cancer cells) was 47.75 %, and the survival rate of HaCaT cells (healthy cells) was 75.25 % when co-cultured with both cells. The therapeutic efficacy of Trastuzumab@ZIF-8@DOX was assessed on BALB/c nude mice to validate its potential as an effective drug delivery system for tumor inhibition in vivo. In conclusion, these findings demonstrate the specificity-targeted and pH-responsive nature of this smart drug delivery system, highlighting its promising prospects for efficient and controllable cancer treatment applications.
MeSH term(s)	Animals ; Mice ; Metal-Organic Frameworks ; Mice, Nude ; Drug Delivery Systems ; Doxorubicin/pharmacology ; Doxorubicin/therapeutic use ; Trastuzumab/pharmacology ; Nanoparticles ; Drug Carriers ; Hydrogen-Ion Concentration
Chemical Substances	Metal-Organic Frameworks ; Doxorubicin (80168379AG) ; Trastuzumab (P188ANX8CK) ; Drug Carriers
Language	English
Publishing date	2023-11-13
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	1500969-5
ISSN	1873-3573 ; 0039-9140
ISSN (online)	1873-3573
ISSN	0039-9140
DOI	10.1016/j.talanta.2023.125380
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Article ; Online: Ball-milled sulfide iron-copper bimetals based composite permeable materials for Cr (VI) removal: Effects of preparation parameters and kinetics study.

Yang, Zhenghan / Ding, Guoyu / Yan, Lili / Wang, Runkai / Zhang, Wenqi / Wang, Xingrun / Rao, Pinhua

Chemosphere

2023 Volume 338, Page(s) 139388

Abstract	Zero-valent iron (ZVI) and modified ZVI have been investigated extensively for groundwater remediation. However, ZVI based powder was difficult to be applied directly as permeable reactive barrier (PRB) materials due to their low water permeability and usage rate. In this study, sulfide iron-copper bimetal was prepared by ball milling, which is environment-friendly without second contamination. The optimal preparation parameters of sulfide iron-copper bimetal for Cr(VI) removal were determined (Cu/Fe ratio (w/w), 0.018; FeS/Fe ratio (w/w), 0.1213; ball milling speed, 450 rpm; ball milling time, 5 h). A composite permeable material was prepared by sintering a mixture of sulfide iron-copper bimetal, sludge, and kaolin. The parameters for composite permeable material preparation including sludge content and particle size, and sintering time were optimized, which were 60%, 60-75 mesh, and 4 h, respectively. The optimal composite permeable material was characterized by SEM-EDS, XRD, and FTIR. The results demonstrated preparation parameters can affect the hydraulic conductivity and hardness of composite permeable material. High sludge content, small particles size, and moderate sintering time resulted in high permeability of composite permeable material and were beneficial for Cr(VI) removal. The dominant Cr(VI) removal mechanism was reduction, and the reaction followed pseudo-first order kinetics. Conversely, low sludge content and large particle size, and long sintering time lead to low permeability of composite permeable material. Chromate removal was mainly by chemisorption following pseudo-second order kinetics. The hydraulic conductivity and hardness of the optimal composite permeable material achieved 1.732 cm/s and 50, respectively. The results of column experiments indicated that its Cr(VI) removal capacity was 0.54 mg/g, 0.39 mg/g and 0.29 mg/g at pH 5, 7 and 9, respectively. The ratio of Cr(VI) to Cr(III) on composite permeable material surface was similar under acidic and alkaline conditions. This study will provide an effective reactive material of PRB for field application.
MeSH term(s)	Iron/chemistry ; Copper ; Kinetics ; Sewage ; Water Pollutants, Chemical/analysis ; Chromium/chemistry ; Sulfides
Chemical Substances	Iron (E1UOL152H7) ; chromium hexavalent ion (18540-29-9) ; Copper (789U1901C5) ; Sewage ; Water Pollutants, Chemical ; Chromium (0R0008Q3JB) ; Sulfides
Language	English
Publishing date	2023-07-07
Publishing country	England
Document type	Journal Article
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.2023.139388
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Article: Sustainable development of perovskite solar cells: keeping a balance between toxicity and efficiency

Ding, Guoyu / Zheng, Yifan / Xiao, Xun / Cheng, Huiyuan / Zhang, Guodong / Shi, Yifeng / Shao, Yuchuan

Journal of materials chemistry A. 2022 Apr. 12, v. 10, no. 15

2022

Abstract: The term “sustainable solar cell” deals with human health and realizing the sustainable development of society. As a potential candidate, perovskite solar cells (PSCs) have been a hot topic for decades, recently achieving a power conversion efficiency ( ... ...

Abstract	The term “sustainable solar cell” deals with human health and realizing the sustainable development of society. As a potential candidate, perovskite solar cells (PSCs) have been a hot topic for decades, recently achieving a power conversion efficiency (PCE) of over 25%. However, most of the raw materials used in the production of PSCs are on the list of hazardous substances by various environmental agencies. Although the chemical and physical strategies have initially attempted the pursuit of low-toxicity PSCs, the PCEs of these “green” PSCs are still much lower than that of their counterparts. Hence, identifying the trade-off between toxicity and efficiency has become prominent for the commercialization of PSCs. In this perspective, we first discuss the latest strategies for handling lead. Next, various solvents involved in the manufacturing of PSCs are reviewed and classified according to their sustainable potential. Finally, a comprehensive analysis of the perovskite cations and halogens is provided. Overall, we emphasize that the pursuit of a high PCE and low toxicity is driven by the development of commercial PSCs, where maintaining the balance between the two is vital in achieving genuinely green and sustainable PSCs.
Keywords	chemistry ; commercialization ; human health ; lead ; solar cells ; sustainable development ; toxicity
Language	English
Dates of publication	2022-0412
Size	p. 8159-8171.
Publishing place	The Royal Society of Chemistry
Document type	Article
ZDB-ID	2702232-8
ISSN	2050-7496 ; 2050-7488
ISSN (online)	2050-7496
ISSN	2050-7488
DOI	10.1039/d2ta00248e
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Article: Operational effectiveness of funding for waste electrical and electronic equipment disposal in China: An analysis based on game theory

Zhang, Deyuan / Cao, Yushu / Wang, Yingjie / Ding, Guoyu

Resources, conservation, and recycling. 2020 Jan., v. 152

2020

Abstract: This paper analyzes the characteristics of waste electrical and electronic equipment (WEEE) market in China and the findings are as follows: WEEE are still seen as valuable goods, and a recovery and recycling system is thus in place naturally in China ... ...

Abstract	This paper analyzes the characteristics of waste electrical and electronic equipment (WEEE) market in China and the findings are as follows: WEEE are still seen as valuable goods, and a recovery and recycling system is thus in place naturally in China like in many other developing countries. A game theory model is therefore built here to find out how effective funding is for this recovery and recycling system. Analysis of this model reveals: (1) Some dismantling enterprises (formal dismantling enterprises) are in this funding system, while others (informal ones) are not, thus forming a dual WEEE dismantling system, after the funding system was launched; (2) To ensure effectiveness of the funding system, the funding provided for formal enterprises for each piece of WEEE they handle, after deducting the incremental cost incurred for environmental compliance, must exceed the difference between the unit selling prices of the dismantled devices at formal and informal dismantling enterprises. This difference is RMB 70.2, RMB 67.9, RMB 22.2, RMB 79.4 and RMB 68.3 respectively for televisions, refrigerators, washing machines, air conditioners and computers; (3) When the funding system was launched, WEEE recovery enterprises would raise WEEE prices to seek profit and this would channel part of the funding into the recovery segment of the market.
Keywords	business enterprises ; developing countries ; electronic wastes ; funding ; game theory ; market prices ; markets ; models ; recycling ; China
Language	English
Dates of publication	2020-01
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1498716-8
ISSN	0921-3449
ISSN	0921-3449
DOI	10.1016/j.resconrec.2019.104514
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