JOURNAL OF POWER SOURCES
·
2023
·
IF 9.2
Haijia Li,Xueyi Zeng,Xin He,Wenlian Wang,Weizhen Fan,Chaojun Fan,Zhen Ma,Junmin Nan
A sulfur-containing compound S-phenyl Benzenethiosulfonate (SPBS) is developed as an electrolyte additive to improve the electrochemical performance of LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811)/graphite lithium-ion batteries (LIBs) in a wide temperature range. Compared with the batteries without SPBS, the capacity retention of the batteries containing SPBS increases from 58.15% to 91.48% after 1100 cycles at 25 °C and from 70.09% to 80.68% after 550 cycles at 45 °C. And after stored at 60 °C for 7 days, 14 days, and 28 days, the capacity retention rate and capacity recovery rate of the batteries containing SPBS are obviously improved. In addition, it is also shown that SPBS can inhibit the internal polarization and capacity attenuation of the batteries during low-temperature cycling, the capacity retention of the batteries containing SPBS increases from 46.3% to 81.9% after 100 cycles at −10 °C. The experimental and theoretical results demonstrate that SPBS facilitates the construction of high-quality electrode-electrolyte interfaces, reduces the electrolyte decomposition and inhibits the impedance increase. The excellent temperature performance of NCM811/graphite LIBs means the promising application prospect of SPBS-containing electrolyte.
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FlatChem
·
2023
·
IF 6.2
Xia Xu,Changchun Chen,Lingxiu Shu,Cheng Cheng,Zhonghai Tang,Yifeng Wang,Lin Pan,Zishen Guan
Water pollution can be efficiently treated by semiconductor photocatalysts under sunlight irradiation. In this study, novel S-scheme SrTiO 3 /ZnIn 2 S 4 composites were successfully fabricated via a facile oil-bath method. And the synthesized samples were then characterized by various characterization techniques together with Density Functional Theory (DFT) calculation. The X-Ray Diffraction(XRD)patterns show that SrTiO 3 /ZnIn 2 S 4 composites are composed of cubic perovskite structure SrTiO 3 and hexagonal phase ZnIn 2 S 4 . The High Resolution Transmission Electron Microscope(HRTEM)and Field Emission Scanning Electron Microscope (FESEM) images showed the intimate contacts between SrTiO 3 and ZnIn 2 S 4 are established to form the heterojunction. The photocatalytic activity of the composite was excellent when degrading organic pollutants, which outperformed that of pristine SrTiO 3 and ZnIn 2 S 4 . The prepared SrTiO 3 /ZnIn 2 S 4 -33% composite sample was proved to have the best photocatalytic activity, with 98 % degradation of organic pollutants under 32 min. The ·O 2 – is the main active reaction species for the degradation of organic pollutants, which was demonstrated by free radical trapping experiment. In addition, the mineralization of organic pollutants during the degradation process was analyzed by Total Organic Carbon (TOC) test. According to a series of experimental and theoretical calculations, the S-scheme heterojunction formed in the SrTiO 3 /ZnIn 2 S 4 composite is put forward for comprehending the photocatalytic degradation of organic pollutants and the formation of free radicals.
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2023
·Vol. 24
·期 24
·17376
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IF 5.6
Mingyu Xue,Xiaohong Xia,Yadi Deng,Fei Teng,Shiyue Zhao,Hui Li,Dejun Hao,Wei-Yi Chen
Alpha-pinene is one of the main defensive components in conifers.Monochamus alternatus(Coleoptera: Cerambycidae), a wood borer feeding on Pinaceae plants, relies on its detoxifying enzymes to resist the defensive terpenoids. Here, we assayed the peroxide level and GST activity ofM. alternatuslarvae treated with different concentrations of α-pinene. Meanwhile, agstgene (MaGSTe3) was isolated and analyzed. We determined its expression level and verified its function. The results showed that α-pinene treatment led to membrane lipid peroxidation and thus increased the GST activity. Expression ofMaGSTe3was significantly upregulated in guts following exposure to α-pinene, which has a similar pattern with the malonaldehyde level. In vitro expression and disk diffusion assay showed that the MaGSTe3 protein had high antioxidant capacity. However, RNAi treatment of MaGSTe3 did not reduce the hydrogen peroxide and malonaldehyde levels, while GST activity was significantly reduced. These results suggested MaGSTe3 takes part in α-pinene adaptation, but it does not play a great role in the resistance ofM. alternatuslarvae to α-pinene.Keywords:glutathione S-transferase;detoxification enzymes;monoterpene
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PubMed
高影响因子
Sustainable Energy & Fuels
·
2023
·Vol. 8
·期 3
·604-609
·
IF 5.6
Jinhui Zhang,Chuanhe Ma,Haixuan Gao,Jinchun Jiang,Hailong Wang
An over-thick MoSe2 layer and numerous voids at the absorbing layer inside and backside lead to a relatively low Jsc and PCE of CZTSSe solar cells. In previous studies, MoO2 and MoO3 sacrificial layers have been commonly used to eliminate those voids and reduce the thickness of MoSe2 layers. However, there is still no clarity about which one is more effective. In this work, we prepared MoO2 and MoO3 sacrificial layers on the surface of Mo-coated SLG substrates by air annealing and ammonia (NH3·H2O) etching, respectively. J–V testing shows that both MoO2 and MoO3 can effectively improve the Jsc and PCE of CZTSSe solar cells, wherein MoO3 is more effective. Comparative analysis shows that the electrical mechanism of Jsc and PCE improvement lies in the significant reduction of device series resistance (Rs). SEM images and XRD pattern results indicate that the reason for Rs decreasing is void elimination and MoSe2 layer thickness reduction from 600 nm to 270 nm after applying MoO3. With the aid of the MoO3 sacrificial layer, the PCE of the CZTSSe device increases from 7.51% to 9.58% (total area 0.21 cm2) without the MgF2 anti-reflection layer.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2023
·
IF 10.9
Wenhan Chen,Meng Dai,Li Xiang,Shan Zhao,Shuguang Wang,Zuoli He
The S-scheme heterojunction has garnered increasing attention due to its remarkable oxidation capacity and efficient separation of photogenerated carriers. In this study, a one-pot glycerol-assisted hydrothermal process was utilized to successfully synthesize S-scheme heterojunction photocatalysts comprising basic bismuth nitrate (BBN) and bismuth tungstate (BWO). Interestingly, the BBN/BWO heterogeneous photocatalysts exhibited the highest photocatalytic properties. The optimized product achieved the degradation of sulfamethazine (SMZ) within 1 h, with a kinetic constant ( k ) value of 0.05818 min −1 . The degradation process was influenced significantly by ·O 2 − and h + species. To determine the degradation pathway of SMZ in the presence of BBN/BWO-0.6, liquid chromatography–mass spectrometry (LC–MS) analysis was performed, which revealed a decrease in the toxicity of intermediates and products. The enhanced photocatalytic activity can be attributed to the internal electric field (IEF) of the S-scheme heterojunction between BBN and BWO, effectively promoting the separation of photogenerated carriers. This research presents a viable approach for developing S-scheme heterojunctions in SMZ photodegradation and other environmental applications.
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Advanced Science
·
2023
·
IF 15.1
Quanzhen Sun,Chen Shi,Weihao Xie,Yifan Li,Caixia Zhang,Jionghua Wu,Qiao Zheng,Hui Deng,Shuying Cheng
Ion doping is an effective strategy for achieving high-performance flexible Cu 2 ZnSn(S,Se) 4 (CZTSSe) solar cells by defect regulations. Here, a Li&Na co-doped strategy is applied to synergistically regulate defects in CZTSSe bulks. The quality absorbers with the uniformly distributed Li and Na elements are obtained using the solution method, where the acetates (LiAc and NaAc) are as additives. The concentration of the harmful Cu Zn anti-site defects is decreased by 8.13% after Li incorporation, and that of the benign Na Zn defects is increased by 36.91% after Na incorporation. Synergistic Li&Na co-doping enhances the carrier concentration and reduces the interfacial defects concentration by one order of magnitude. As a result, the flexible CZTSSe solar cell achieves a power conversion efficiency ( PCE ) of 10.53% with certified 10.12%. Because of the high PCE and the homogeneous property, the Li&Na co-doped device is fabricated to a large area (2.38 cm 2 ) and obtains 9.41% PCE . The co-doping investigation to synergistically regulate defects provides a new perspective for efficient flexible CZTSSe solar cells.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2023
·
IF 8.4
Yu Xie,Jie-Hao Lin,Li-Yang Chen,Lei Feng,Zhi-Min Chen,Jia-Xing Zheng,Sai-Nan Qin,Guang-Wei Li,Kalle Salminen,Jian-Jun Sun
Effective drugged driving screening by the roadside requires simple-to-use sensing platforms that allow accurate measurement of drugs from biofluids. Achieving this goal is of vital importance to prevent and control the incidence of drug abuse, traffic accidents and crime. Given this, we designed a rapid, sensitive and reagentless electrochemical aptamer-based (EAB) sensor to detect ketamine. This platform produced nanomolar detection accuracy and reliable results were obtained within 30 s. To design a sensitive platform, circular dichroism (CD) was used to screen the aptamer which underwent the largest binding-induced conformational change. In addition, kinetic differential measurement (KDM) was utilized to improve the signal gain of the EAB sensor. The constructed sensing platform achieved sensitive and specific detection of ketamine in 50 % saliva and undiluted urine with detection limits as low as 10 nM, which was much lower than the physiological detection threshold. Hence the present EAB sensor is expected to be applied in the preliminary drugged driving screening in the real world.
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MOLECULES
·
2023
·Vol. 28
·期 13
·5098
·
IF 4.6
Xiangyuan Kong,Longwen Cao,Yuxing Shi,Zhouze Chen,Weilong Shi,Xin Du
Utilization of semiconductor photocatalyst materials to degrade pollutants for addressing environmental pollution problems has become a research focus in recent years. In this work, a 2D/2D S-scheme crystalline carbon nitride (CCN)/BiOIO3(BOI) van der Waals heterojunction was successfully constructed for effectively enhancing the degradation efficiency of antibiotic contaminant. The as-synthesized optimal CCN/BOI-3 sample exhibited the highest efficiency of 80% for the photo-degradation of tetracycline (TC, 20 mg/L) after 120 min visible light irradiation, which was significantly higher than that of pure CCN and BOI. The significant improvement in photocatalytic performance is mainly attributed to two aspects: (i) the 2D/2D van der Waals heterojunction can accelerate interface carriers’ separation and transfer and afford sufficient active sites; (ii) the S-scheme heterojunction elevated the redox capacity of CCN/BOI, thus providing a driving force for the degradation reaction. The degradation pathways of TC for the CCN/BOI composite were investigated in detail by liquid chromatography-mass spectrometry (LC-MS) analysis. This work provides a design idea for the development of efficient photocatalysts based on the 2D/2D S-scheme van der Waals heterojunctions.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Lifang Yang,Jiangju Si,Liang Liang,Yunfei Wang,Li Zhu,Zizhong Zhang
Photocatalytic water splitting has been identified as a promising solution to tackle the current environmental and energy crisis in the world. However, the challenge of this green technology is the inefficient separation and utilization of photogenerated electron-hole pairs in photocatalysts. To overcome this challenge in one system, a ternary ZnO/Zn 3 In 2 S 6 /Pt material was prepared as a photocatalyst using a stepwise hydrothermal process and in-situ photoreduction deposition. The integrated S-scheme/Schottky heterojunction in the constructed ZnO/Zn 3 In 2 S 6 /Pt photocatalyst enabled it to exhibit efficient photoexcited charge separation/transfer. The evolved H 2 reached up to 3.5 mmol g -1 h - 1 . Meanwhile, the ternary composite possessed a high cyclic stability against photo-corrosion under irradiation. Practically, the ZnO/Zn 3 In 2 S 6 /Pt photocatalyst also showed great potential for H 2 evolution while simultaneously degrading organic contaminants like bisphenol A. It is hoped in this work that the incorporation of Schottky junctions and S-scheme heterostructures in the construction of photocatalysts would lead to accelerated electron transfer and high photoinduced electron-hole pair separation, respectively, to synergistically enhance the performance of photocatalysts.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Jingzhen Wang,Chun-Shuai Cao,Yinqing Zhang,Lingyan Zhu
Perfluorooctanoic acid (PFOA) is refractory owing to the strong C-F bonds and is extremely difficult to be degraded by traditional photocatalysts. In this study, an S-scheme heterojunction was successfully synthesized by incorporating BiOF with wide-bandgap Bi 7 O 5 F 11 . Theoretical calculations, in situ X-ray photoelectron spectroscopy and Kelvin probe force microscopy verified that a build-in electric field was created in the heterojunction, facilitating the separation of electron-hole pairs. Thus, the photoexcited electrons in the conduction-band (CB) of BiOF rapidly recombined with holes in the valence-band (VB) of Bi 7 O 5 F 11 , leading to enrichment of the highly reductive electrons in CB of Bi 7 O 5 F 11 and strongly oxidative holes in VB of BiOF. Additionally, the strong interaction between Bi 7 O 5 F 11 /BiOF and PFOA is conducive to electron transfer from catalyst surface to PFOA. Thus, BOF-2 displayed superbly-high photoactivity to decompose PFOA. PFOA (5 mg/L) was decomposed within 1 h, and 53% of total-organic-carbon was removed in 2 h of irradiation.
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FUEL
·
2023
·
IF 7.4
Leipeng Ji,Zhisong Liu,Zihao Li,Wenjun Huang,Haomiao Xu,Zan Qu,Naiqiang Yan
The gypsum from flue gas desulfurization or the neutralization (D/N gypsum) process of acid wastewater, is an industrial by-product in nonferrous metal smelters. The S and Ca sources of D/N gypsum have significant application prospects. However, the S(IV) reduction is difficult due to the electronic inactivity of CaSO 4 and the stability of the S-O band. Our experimental results indicated that the start-up temperature of CaSO 4 reduced by CH 4 is 900 ℃. However, adding H 2 S gas with a H 2 S/CaSO 4 (S/Ca) ratio of 0.2, the start-up temperature of CaSO 4 reacted with CH 4 decreases to 650 ℃. With the increase of the S/Ca ratio from 0.04 to 0.2, the yield of CaS increased to 94.97%, and the selectivity toward CO 2 formation increases to 71.67%. In-situ diffuse reflectance Fourier transformations spectroscopy (in-situ DRIFTs) results indicate that adding H 2 S generates the new sulfide groups on the surface of CaSO 4 , resulted from the S(-II) in H 2 S changing the distribution of valence electrons of O and activating O. Moreover, the density functional theory (DFT) calculation results exhibit that the activation energy for the first O dissociation decreases to 2.89 eV in the presence of H 2 S. Furthermore, H 2 S optimized the reaction path of CH 4 and improved the selectivity toward CO 2 formation. Comparing to 1000 ℃ without H 2 S, under 800 ℃ with H 2 S, the consumption of CH 4 reduces to 45%, and the CO 2 selectivity increases to 71.67%. Thus, we have developed a method of CaSO 4 low-temperature reduction and provide a theoretical basis for its application in engineering.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xuliang Lin,Lijing Xue,Bowen Liu,Xueqing Qiu,Jianglin Liu,Xiaofei Wang,Yi Qi,Yanlin Qin
The development of highly active and stable earth-rich electrocatalysts remains a major challenge to release the reliance on noble metal catalysts in sustainable (electro)chemical processes. In this work, metal sulfides encapsulated with S/N co-doped carbon were synthesized with a one-step pyrolysis strategy, where S was introduced during the self-assembly process of sodium lignosulfonate. Due to the precise coordination of Ni and Co ions with lignosulfonate, an intense-interacted Co 9 S 8 –Ni 3 S 2 heterojunction was formed inside the carbon shell, causing the redistribution of electrons. An overpotential as low as 200 mV was obtained over Co 9 S 8 –Ni 3 S 2 @SNC to reach a current density of 10 mA cm −2 . Only a slight increase of 14.4 mV was observed in a 50 h chronoamperometric stability test. Density functional theory (DFT) calculations showed that Co 9 S 8 –Ni 3 S 2 heterojunctions encapsulated with S/N co-doped carbon can optimize the electronic structure, lower the reaction energy barrier, and improve the OER reaction activity. This work provides a novel strategy for constructing highly efficient and sustainable metal sulfide heterojunction catalysts with the assistance of lignosulfonate biomass.
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