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Article: Metal oxyhalides: an emerging family of nonlinear optical materials.

Chen, Xinglong / Ok, Kang Min

2022 Volume 13, Issue 14, Page(s) 3942–3956

Abstract: Second-order nonlinear optical (NLO) materials have drawn enormous academic and technological attention attributable to their indispensable role in laser frequency conversion and other greatly facilitated applications. The exploration of new NLO ... ...

Abstract	Second-order nonlinear optical (NLO) materials have drawn enormous academic and technological attention attributable to their indispensable role in laser frequency conversion and other greatly facilitated applications. The exploration of new NLO materials with high performances thus has long been an intriguing research field for chemists and material scientists. However, an ideal NLO material should simultaneously satisfy quite a few fundamental yet rigorous criteria including a noncentrosymmetric structure, large NLO coefficients, desired transparent range, large birefringence, high laser damage threshold, and availability of a large-size single crystal. Therefore, the identification of promising compound systems, targeted design, and experience-based syntheses are crucial to discover novel NLO materials working in the spectral region of interest. As an important family of mixed-anion compounds, versatile metal oxyhalides containing metal-centered oxyhalide functional units ([MO
Language	English
Publishing date	2022-03-15
Publishing country	England
Document type	Journal Article ; Review
ZDB-ID	2559110-1
ISSN	2041-6539 ; 2041-6520
ISSN (online)	2041-6539
ISSN	2041-6520
DOI	10.1039/d1sc07121a
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Article ; Online: Fenton oxidation system for treating petroleum-contaminated solid waste: Advances and prospects

Mu, Shiqi / Chen, Xinglong / Jiang, Guobin / Chen, Weiming

Science of the Total Environment. 2023 Oct., v. 893 p.164793-

2023

Abstract: Both normal activities and accidental spills in the petroleum industry generate solid waste that contain petroleum-contaminated pollutants (referred to as “petroleum-contaminated solid waste”), which mainly include petroleum-contaminated soil, petroleum ... ...

Abstract	Both normal activities and accidental spills in the petroleum industry generate solid waste that contain petroleum-contaminated pollutants (referred to as “petroleum-contaminated solid waste”), which mainly include petroleum-contaminated soil, petroleum sludge, and petroleum-based drill cuttings. At present, most relevant studies focus solely on the treatment effects of the Fenton system alone in treating a specific type of petroleum-contaminated solid waste, and systematic studies on the influencing factors, degradation pathways, and applicability of the system are lacking. For this reason, this paper reviews the application and development of the Fenton system to treat petroleum-contaminated solid waste in the period from 2010 to 2021 and summarizes its basic properties. It also compares the influencing factors (e.g., Fenton reagent dosage, initial pH, and catalyst properties), degradation mechanisms, and reagent costs of conventional Fenton, heterogeneous Fenton, chelate-modified Fenton, and electro-Fenton systems for the treatment of petroleum-contaminated solid waste. In addition, the main degradation pathways and intermediate toxicities of typical petroleum hydrocarbons in Fenton systems are analyzed and evaluated, and development directions for the further application of Fenton systems in treating petroleum-contaminated solid waste are proposed.
Keywords	catalysts ; environment ; industry ; oxidation ; pH ; petroleum ; sludge ; soil ; solid wastes ; Fenton system ; Petroleum-contaminated soil ; Petroleum sludge ; Petroleum-based drill cuttings
Language	English
Dates of publication	2023-10
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.2023.164793
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Article ; Online: Degradation of petroleum pollutants in oil-based drilling cuttings using an Fe2+-based Fenton-like advanced oxidation processes

Chen, Xinglong / Mu, Shiqi / Luo, Yuanfeng

Environ Sci Pollut Res. 2023 Mar., v. 30, no. 13 p.37669-37678

2023

Abstract: Oil-based drilling cuttings (OBDC) contain a large amount of total petroleum hydrocarbon (TPH) pollutants, which are hazardous to the environment. In this study, Fe²⁺-activating hydrogen peroxide (Fe²⁺/H₂O₂), peroxymonosulfate (Fe²⁺/PMS), and ... ...

Abstract	Oil-based drilling cuttings (OBDC) contain a large amount of total petroleum hydrocarbon (TPH) pollutants, which are hazardous to the environment. In this study, Fe²⁺-activating hydrogen peroxide (Fe²⁺/H₂O₂), peroxymonosulfate (Fe²⁺/PMS), and peroxydisulfate (Fe²⁺/PDS) advanced oxidation processes (AOPs) were used to treat OBDC due to the difference in the degradation capacity of TPH caused by the type of free radical generated and effective activation conditions observed for the different oxidants studied. The results showed that the oxidant concentration, Fe²⁺ dosage, and reaction time in the three AOPs were greatly positively correlated with the TPH removal rate in a certain range. The initial pH value had a significant effect on the Fe²⁺/H₂O₂ process, and its TPH removal rate was negatively correlated in the pH range from 3 to 11. However, the Fe²⁺/PMS and Fe²⁺/PDS processes only displayed lower TPH removal rates under neutral conditions and tolerated a wider range of pH conditions. The optimal TPH removal rates observed for the Fe²⁺/H₂O₂, Fe²⁺/PMS, and Fe²⁺/PDS processes were 45.04%, 42.75%, and 44.95%, respectively. Fourier transform infrared spectrometer and gas chromatography-mass spectrometer analysis showed that the alkanes in OBDC could be effectively removed using the three processes studied, and their degradation ability toward straight-chain alkanes was in the order of Fe²⁺/PMS > Fe²⁺/PDS > Fe²⁺/H₂O₂, among which Fe²⁺/PMS exhibited the optimal removal effect for aromatic hydrocarbons. Scanning electron microscope, energy dispersive spectroscopy, and X-ray diffraction results showed no significant changes in the elemental and mineral composition of OBDC before and after treatment. Therefore, this study provided a theoretical reference for the effective degradation of TPH pollutants in OBDC.
Keywords	Fourier transform infrared spectroscopy ; X-ray diffraction ; energy-dispersive X-ray analysis ; free radicals ; gas chromatography ; hydrogen peroxide ; mineral content ; oxidants ; oxidation ; pH ; petroleum ; spectrometers
Language	English
Dates of publication	2023-03
Size	p. 37669-37678.
Publishing place	Springer Berlin Heidelberg
Document type	Article ; Online
ZDB-ID	1178791-0
ISSN	1614-7499 ; 0944-1344
ISSN (online)	1614-7499
ISSN	0944-1344
DOI	10.1007/s11356-022-24925-2
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Article ; Online: Fenton oxidation system for treating petroleum-contaminated solid waste: Advances and prospects.

Mu, Shiqi / Chen, Xinglong / Jiang, Guobin / Chen, Weiming

The Science of the total environment

2023 Volume 893, Page(s) 164793

Abstract: Both normal activities and accidental spills in the petroleum industry generate solid waste that contain petroleum-contaminated pollutants (referred to as "petroleum-contaminated solid waste"), which mainly include petroleum-contaminated soil, petroleum ... ...

Abstract	Both normal activities and accidental spills in the petroleum industry generate solid waste that contain petroleum-contaminated pollutants (referred to as "petroleum-contaminated solid waste"), which mainly include petroleum-contaminated soil, petroleum sludge, and petroleum-based drill cuttings. At present, most relevant studies focus solely on the treatment effects of the Fenton system alone in treating a specific type of petroleum-contaminated solid waste, and systematic studies on the influencing factors, degradation pathways, and applicability of the system are lacking. For this reason, this paper reviews the application and development of the Fenton system to treat petroleum-contaminated solid waste in the period from 2010 to 2021 and summarizes its basic properties. It also compares the influencing factors (e.g., Fenton reagent dosage, initial pH, and catalyst properties), degradation mechanisms, and reagent costs of conventional Fenton, heterogeneous Fenton, chelate-modified Fenton, and electro-Fenton systems for the treatment of petroleum-contaminated solid waste. In addition, the main degradation pathways and intermediate toxicities of typical petroleum hydrocarbons in Fenton systems are analyzed and evaluated, and development directions for the further application of Fenton systems in treating petroleum-contaminated solid waste are proposed.
Language	English
Publishing date	2023-06-12
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2023.164793
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Article ; Online: Molecular comparison of organic matter removal from shale gas flowback wastewater: Ozonation versus Fenton process.

Chen, Xinglong / Zhao, Guonan / Yang, Zhuowen / Li, Qibin

The Science of the total environment

2023 Volume 905, Page(s) 167147

Abstract: Shale gas extraction process generates a large amount of shale gas flowback wastewater (SGFW) containing refractory organic compounds, which can pose serious environmental threats if not properly treated. However, the extremely complex compositions of ... ...

Abstract	Shale gas extraction process generates a large amount of shale gas flowback wastewater (SGFW) containing refractory organic compounds, which can pose serious environmental threats if not properly treated. However, the extremely complex compositions of organics in SGFW are still unknown and their transformation pathways in O
Language	English
Publishing date	2023-09-18
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.2023.167147
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Article: The Role of Calcium and Iron Homeostasis in Parkinson's Disease.

Wang, Ji / Zhao, Jindong / Zhao, Kunying / Wu, Shangpeng / Chen, Xinglong / Hu, Weiyan

Brain sciences

2024 Volume 14, Issue 1

Abstract: Calcium and iron are essential elements that regulate many important processes of eukaryotic cells. Failure to maintain homeostasis of calcium and iron causes cell dysfunction or even death. PD (Parkinson's disease) is the second most common neurological ...

Abstract	Calcium and iron are essential elements that regulate many important processes of eukaryotic cells. Failure to maintain homeostasis of calcium and iron causes cell dysfunction or even death. PD (Parkinson's disease) is the second most common neurological disorder in humans, for which there are currently no viable treatment options or effective strategies to cure and delay progression. Pathological hallmarks of PD, such as dopaminergic neuronal death and intracellular α-synuclein deposition, are closely involved in perturbations of iron and calcium homeostasis and accumulation. Here, we summarize the mechanisms by which Ca
Language	English
Publishing date	2024-01-17
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2651993-8
ISSN	2076-3425
ISSN	2076-3425
DOI	10.3390/brainsci14010088
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Article ; Online: Diarylheptanoids with neuroprotective effects from Alpinia officinarum rhizomes.

Mu, Liping / Wang, Ji / Zhou, Tang / Qiao, Wenhao / Hu, Weiyan / Zhang, Rongping / Chen, Xinglong

Fitoterapia

2024 Volume 175, Page(s) 105980

Abstract: Forty-three diarylheptanoids were isolated from Alpinia officinarum rhizomes among them eight ones (1-6) were undescribed compounds whose structures were identified by UV, IR, HRESIMS, and NMR. The neuroprotective effects of these diarylheptanoids were ... ...

Abstract	Forty-three diarylheptanoids were isolated from Alpinia officinarum rhizomes among them eight ones (1-6) were undescribed compounds whose structures were identified by UV, IR, HRESIMS, and NMR. The neuroprotective effects of these diarylheptanoids were evaluated on H
Language	English
Publishing date	2024-04-27
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	412385-2
ISSN	1873-6971 ; 0367-326X
ISSN (online)	1873-6971
ISSN	0367-326X
DOI	10.1016/j.fitote.2024.105980
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Article ; Online: Abietane diterpenoids with anti-neuroinflammation activity from Rosmarinus officinalis.

Zhou, Tang / Wang, Ji / Lin, Zhiqi / Zhu, Hongbo / Hu, Weiyan / Zhang, Rongping / Chen, Xinglong

Fitoterapia

2024 Volume 174, Page(s) 105866

Abstract: A total of 12 abietane diterpenoids were isolated and identified from Rosmarinus officinalis in which 6 ones were undescribed compounds. Their structures were illuminated by the HRESIMS, NMR, and ECD methods and named as rosmarinusin Q-V (1-6). It worthy ...

Abstract	A total of 12 abietane diterpenoids were isolated and identified from Rosmarinus officinalis in which 6 ones were undescribed compounds. Their structures were illuminated by the HRESIMS, NMR, and ECD methods and named as rosmarinusin Q-V (1-6). It worthy mentioned that rosmarinusin Q was a novel abietane diterpenoid with 6/6/5 skeleton whose C ring was an α,β-unsaturated five-element ketone. All the compounds and four compounds (13-16) reported in our previous paper were evaluated their anti-neuroinflammatory activities on the LPS-induced BV2 cells. Compounds 5, 8, 9, 11, and 15 displayed significant anti-neuroinflammatory activity at the concentration of 10, 20, and 40 μM respectively. These results confirmed that R. officinalis contained abundant abietane diterpenoids and these compounds showed potential values of anti-neuroinflammation which could be developed as neuroprotective agents for the treatment of nerve damage caused by inflammation.
MeSH term(s)	Abietanes/pharmacology ; Abietanes/chemistry ; Rosmarinus/chemistry ; Molecular Structure ; Magnetic Resonance Spectroscopy ; Diterpenes/pharmacology ; Diterpenes/chemistry
Chemical Substances	Abietanes ; Diterpenes
Language	English
Publishing date	2024-02-18
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	412385-2
ISSN	1873-6971 ; 0367-326X
ISSN (online)	1873-6971
ISSN	0367-326X
DOI	10.1016/j.fitote.2024.105866
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Article ; Online: KF·B(OH)

Li, Yang / Chen, Xinglong / Ok, Kang Min

Chemical communications (Cambridge, England)

2022 Volume 58, Issue 63, Page(s) 8770–8773

Abstract: A designed material with large birefringence and remarkable deep-ultraviolet transparency, KF·B(OH) ...

Abstract	A designed material with large birefringence and remarkable deep-ultraviolet transparency, KF·B(OH)
Language	English
Publishing date	2022-08-04
Publishing country	England
Document type	Journal Article
ZDB-ID	1472881-3
ISSN	1364-548X ; 1359-7345 ; 0009-241X
ISSN (online)	1364-548X
ISSN	1359-7345 ; 0009-241X
DOI	10.1039/d2cc03495f
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Article ; Online: Removal of total petroleum hydrocarbons from oil-based drilling cuttings by a heat activation persulfate-based process.

Chen, Xinglong / Mu, Shiqi / Luo, Yuanfeng

Environmental technology

2022 Volume 45, Issue 5, Page(s) 835–844

Abstract: Oil-based drilling cuttings (OBDC) are typical hazardous wastes generated during shale gas extraction. In this study, two persulfate-based advanced oxidation processes (AOPs), heat/PMS and heat/PDS, have been used to treat OBDC. The results showed that ... ...

Abstract	Oil-based drilling cuttings (OBDC) are typical hazardous wastes generated during shale gas extraction. In this study, two persulfate-based advanced oxidation processes (AOPs), heat/PMS and heat/PDS, have been used to treat OBDC. The results showed that for the heat/PMS process, within a certain range, the oxidant dosage, temperature, and reaction time were significantly positively correlated with the degree of total petroleum hydrocarbon (TPH) removal. When these parameters were increased from their initial values to 3.57 mmol/g, 70°C, and 80 min, respectively, TPH removal rates increased significantly, by 20.95%, 18.68%, and 16.41%, respectively. However, further increases in these parameters had little effect on the TPH removal rate. Similar observations were made for the heat/PDS process. There are other differences between the two processes, including that the heat/PDS process required less oxidant to reach an effective activation state than the heat/PMS process, but required a higher temperature and a longer reaction time. Fourier-transform infrared spectrometry and gas chromatography-mass spectrometry have shown that both processes could effectively remove the light components of linear paraffins contained in OBDC. The heat/PMS process performed significantly better than the heat/PDS process in removing aromatic hydrocarbons and long-chain alkanes. Scanning electron microscopy, energy-dispersive spectrometry, and X-ray diffraction analysis implied that the elemental and mineral compositions of OBDC were not significantly modified by reaction in the heat/PMS and heat/PDS processes. This study may provide theoretical support for the technological development of heat activation and persulfate-based AOPs to remove TPH from OBDC.
MeSH term(s)	Hot Temperature ; Hydrocarbons ; Oxidants ; Petroleum
Chemical Substances	Hydrocarbons ; Oxidants ; Petroleum
Language	English
Publishing date	2022-10-09
Publishing country	England
Document type	Journal Article
ISSN	1479-487X
ISSN (online)	1479-487X
DOI	10.1080/09593330.2022.2128894
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