CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Sihan Ma,Xian Luo,Guang Ran,Yipeng Li,Ziqi Cao,Xinyi Liu,Guoqiang Chen,Jianghua Yan,Lin Wang
Optical antibacterial agents present great potential in eliminating infectious pathogens. It is of great significance to construct effective photonic antibacterial agents with outstanding light absorption properties. Herein, 2D engineering defect nanosheets BiOI/Bi with Bi decoration and defect engineering (BiOI-DE) are constructed to perform photonic sterilization. On the one hand, the rational designed BiOI-DE can effectively promote the broad-spectrum light absorption ability to enhance the light utilization rate. On the other hand, the substantive structure can simultaneously harvest the enhanced photonic carriers and thermal effect when irradiated with high penetration ability NIR, further exhibiting higher activity in killing Escherichia coli (E. coli) than that of single BiOI with poor light absorption. The sterilization efficiency is over 99%. Moreover, the causes of the photothermal effect are discussed, indicating that the change of BiOI bandgap and surface bismuth decoration displays a critical role in enhancing light absorption and creating heat energy. In the meantime, the structural advancement of BiOI-DE effectively improves the photocatalytic activity, the synergistic photothermal-catalytic process establishes a favorable condition for improving antibacterial performance. This system provides rational design and potential inspiration for high efficient antibacterial strategy by employing defect engineering approaches.
✓ 已验证
产品关联
DOI
高影响因子
ChemSusChem
·
2022
·Vol. 15
·期 7
·e202200226
·
IF 9.14
Huaxin Li,Xian Yue,Jing Che,Zhou Xiao,Xianbo Yu,Fenglei Sun,Chao Xue,Junhui Xiang
Graphical Networking at its best : The 3D self-supporting nanonetwork structure of Cu−Bi aerogels provides abundant reactive sites and electron transport channels for efficient electrocatalytic reduction of CO 2 to formate. The electrocatalytic reduction of CO 2 (CO 2 RR) to CO, formate, methane, and other high-value compounds is a promising technique. However, current electrocatalysts suffer from drawbacks such as few active catalytic sites, poor selectivity and low stability, etc, which restrict the practical application. Although monatomic metal catalysts have been widely reported in recent years, high performance non-noble metal aerogels were rarely investigated for electrocatalytic CO 2 RR. Herein, Cu−Bi aerogels with boosted CO 2 RR activity were well constructed by a simple one-step self-assembly method. The resultant Cu 1 Bi 2 exhibits excellent CO 2 RR activity with high faradaic efficiency (FE) of 96.57 % towards HCOOH at a potential of −0.9 V vs. RHE, and the FE HCOOH remains over 80.18 % in a wide potential window (−0.8 V to −1.2 V vs. RHE). It demonstrated that the enhanced CO 2 RR activity of Cu−Bi aerogels could be attributed to the 3D self-supporting structure of the catalysis, synergistic effect, and low interfacial charge transfer resistance.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
E-POLYMERS
·
2022
·Vol. 22
·期 1
·468-477
·
IF 3.074
Lin Chen,Ye Sun,Jiawen Wang,Chao Ma,Shuyi Peng,Xingyu Cao,Lang Yang,Chunxin Ma,Gaigai Duan,Zhenzhong Liu,Hui Wang,Yihui Yuan,Ning Wang
Although diverse uranium (U) adsorbents have been explored, it is still a great challenge for high-efficient uranium extraction form seawater. Herein a wood-mimetic oriented porous Ti 3 C 2 T
x
-MXene/gelatin hydrogel (MGH) has been explored through growing directional ice crystals cooled by liquid nitrogen and subsequently forming pores by freeze-dry (Ice-template) method, for ultrafast and high-efficient U-adsorption from seawater with great enhancement by both electric field and sunlight. Different from disperse Ti 3 C 2 T
x
-MXene powder, this MGH not only can be easily utilized but also can own ultrahigh specific surface area for high-efficient U-adsorption. The U-adsorbing capacity of this MGH (10 mg) can reach 4.17 mg·g −1 after only 1 week in 100 kg of seawater, which is outstanding in existing adsorbents. Furthermore, on the positive pole of 0.4 V direct current source or under 1-sun irradiation, the U-adsorbing capacity of the MGH can increase by 57.11% and 13.57%, respectively. Most importantly, the U-adsorption of this hydrogel can be greatly enhanced by simultaneously using the above two methods, which can increase the U-adsorbing capacity by 79.95% reaching 7.51 mg·g −1 . This work provides a new biomimetic porous MXene-based hydrogel for electric field/sunlight bi-enhanced high-efficient U-extraction from seawater, which will inspire new strategy to design novel U-adsorbents and systems.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Zinan Huang,Liuqing He,Wenbiao Zhang,Wenjie Huang,Qijie Mo,Lichun Yang,Qiang Fu,Qingsheng Gao
Bi-functional electrocatalysts are desired for both hydrogen and oxygen evolution reactions (HER and OER). Herein, facile O 2 -plasma activation is introduced to improve the bi-functionality via constructing nickel sulfide-oxide heterostructures . Ni 3 S 2 -NiO x supported by nickel foam delivers obviously elevated HER and OER activity in comparison with pristine Ni 3 S 2 and recently reported NiS x -based electrocatalysts , featured by the low overpotentials for HER (104 mV) and OER (241 mV) at ±10 mA cm −2 in 1.0 M KOH, as well as a voltage of 1.52 V for overall water splitting. As revealed by in-situ Raman spectroscopy , on the one hand, Ni(OH) 2 generated from Ni 3 S 2 during alkaline HER accelerates water dissociation toward the gradually improved performance; on the other hand, this heterostructure undergoes extensive oxidation during OER, leading to excessive NiOOH covering on Ni 3 S 2 and thereby declining activity. These changes are interpreted by the distinct thermodynamic relationship under specific electrochemical conditions via density functional theory calculations.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Xiaoxi Li,Weiwei Li,Mengling Xia,Chao Liu,Neng Li,Zuhao Shi,Yinsheng Xu,Xianghua Zhang
Lead-free double perovskites (DPs) have outstanding luminescent properties, which make them excellent candidates for wide use in optoelectronics. Herein, a solvent-free melting-crystallization technique, which can produce kilogram-scale DP microcrystals (DP-MCs) in one batch, is invented to synthesize the Cs2NaxAg1–xInCl6: Bi (x = 0, 0.2, 0.4, 0.6, 0.8, and 1) DP-MCs. The structure and composition analysis confirmed the products are pure Cs2NaxAg1–xInCl6 DP-MCs. Affected by Jahn–Teller distortion of AgCl6 octahedra, self-trapped excitons appear in the excited state, resulting in the broadband emission (400–850 nm) of Cs2Ag1–xNaxInCl6: Bi DP-MCs. The enhancement of the photoluminescence quantum yield can be realized by introducing Na+ to break the parity-forbidden transition in the Cs2AgInCl6 DP. Optimized Cs2Na0.4Ag0.6InCl6: Bi DP-MC phosphors combined with commercial blue and green phosphors were coated on ultraviolet chips (365 nm) to fabricate white light-emitting diodes (WLEDs) from warm white (2930 K) to cold white (6957 K). An ultrahigh color rendering index of 97.1 and a CCT of 5548 K as well as Commission Internationale de l’Eclairage color coordinates of (0.331, 0.339) have been demonstrated. This kilogram-scale synthesis technique could stimulate the industrial development of WLEDs for general lighting based on DP-MC phosphors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2022
·
IF 10.723
Weifeng Xu,Xiang Liu,Kewen Tang
A novel bi-functional β-cyclodextrin polymer (CD@TCT@PEI) was synthesized for the removal of hydroquinone and Pb(II) from wastewater. The structure and adsorption performance of CD@TCT@PEI towards hydroquinone and Pb(II) were studied comprehensively. Both of the adsorption processes fit the pseudo-second-order kinetic model well. The adsorption isotherms of hydroquinone and Pb(II) could be described well by Langmuir isotherm model, and the maximum adsorption capacities of hydroquinone and Pb(II) are 364.86 and 113.52 mg g −1 , respectively. The adsorption of hydroquinone and Pb(II) on CD@TCT@PEI is an exothermic and spontaneous process. The adsorbed CD@TCT@PEI could be regenerated easily, and can still maintain high adsorption performance after 5 cycles. The electrostatic interaction and coordination interaction account for the adsorption of Pb(II), and inclusion of cyclodextrin and hydrogen-bond interaction are responsible for hydroquinone adsorption. This study provides some insights to design an adsorbent that can simultaneously remove heavy metal ions and organic micropollutants from wastewater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANICA CHIMICA ACTA
·
2022
·
IF 3.118
Huimin Huang,Yuandong Wu,Shuangsheng Cheng,Shaoguo Wen,Yi Qu,Thomas Doert,Dajiang Mei
A new bismuth(III) complex [(1,10-phen)Bi(C 2 O 4 ) 1.5 ], 1,10-phen = 1,10-phenanthroline, was synthesized with oxalate and phen ligands without by-products. The title complex was characterized by single crystal X-ray diffraction, FT-infrared Spectrum, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). 2D bismuth - oxalate - bridged layers are formed by oxalate ligands. Phen ligands are embedded in it which further stabilize the structure. The luminescence properties show that [(1,10-phen)Bi(C 2 O 4 ) 1.5 ] can emit blue-green fluorescence, and π - π stacking and ligand-to-metal-charge transfer (LMCT) are predominant in it, which may have potential applications in the fields of crystal luminescent materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2022
·
IF 10.53
Jian Lu,Bingang Xu
In recent years, molecularly imprinted membrane (MIM) has exhibited superiority in industrial separation, drug purification, solid-phase extraction and even medical detection owing to its remarkable selectivity. For catechins, however, the reactivity with free radicals limits the traditional construction of MIM towards such molecules. Here in this work, we have developed a bio-inspired MIM towards Epigallocatechin gallate (EGCG, a representative catechin) by the anchoring/imprinting strategy. The covalent interactions based on boronate-affinity supplied an oriented anchoring effect, while the non-covalent interactions from l -cysteine promoted the formation of imprinted sites that are highly matched with template. Mild and efficient imprinting was carried out by self-polymerization of dopamine to avoid the destruction of templates. As a result, remarkable selectivity coefficients (2.70 and 4.58), permselectivity coefficients (more than 3.19 and 3.41) and separation factors (5.18 and 7.00) were achieved on the EGCG-imprinted membrane (EIM), accompanied by the impressive imprinting factor (10.14) and superior regeneration performance (only 4.4% of the decline in five cycles). For deep insight into selective recognition and separation, microscopic and visualized mechanisms of site formation and specific rebinding was proposed by molecular dynamics simulations. Approaches with such an anchoring/imprinting strategy will enrich the avant-garde molecular imprinting strategies, and also expand membrane-based applications.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Di Cheng,Huimin Wu,Chuanqi Feng,Yu Ding,He Mei
In this study, a bifunctional photoelectrochemical (PEC) sensor based on Bi/Bi 2 S 3 /BiVO 4 (Bi-BSV) is prepared by one-step hydrothermal method . Firstly, the results from experiments show that the PEC performances of Bi 2 S 3 /BiVO 4 -X (BSV-X, X = m(Bi 2 S 3 )/m(Bi 2 S 3 + BiVO 4 )) are higher than those of Bi 2 S 3 and BiVO 4 , and BSV-15% has the highest PEC performance. To further improve the PEC properties of BSV-15%, metal-Bi was introduced to the synthesis of Y-Bi-BSV-15% (Y represents the amount of glucose added). Moreover, UV–visible diffuse reflectance spectrum (UV–vis DRS) and photoluminescence (PL) demonstrate that 0.3-Bi-BSV-15% has the widest visible light absorption range and strongest photogenerated carriers separation capability among all composites. Based on the above results, the PEC sensor based on the 0.3-Bi-BSV-15% for detecting hexavalent chromium (Cr (VI)) and hydrogen peroxide (H 2 O 2 ) is built. The results exhibit that 0.3-Bi-BSV-15% has a wider detection range of 2–230 µM and a lower detection limit of 0.094 µM for Cr (VI) detection. While for H 2 O 2 detection, the detection range and detection limit are 1–130,000 µM and 0.089 µM, respectively. Therefore, 0.3-Bi-BSV-15% has potential application in Cr (VI) and H 2 O 2 detection.
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2021
·
IF 4.094
Hualun Lv,Xudong Zhang,Jialin Cai,Xin Xie,Yunxiao Fan,Leyan Liu,Jie Ding,Qiang Cai,Yushan Liu
Generally, bi-functionalal electrocatalysts used for overall water splitting (OWS) have good hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance. Herein, RuSe 2 /MoO x composite (RSMC) is constructed through a simple and convenient solid phase reaction (SPR) strategy, and is further studied as a potential electrocatalyst for OWS. At first, we prepared RuO 2 /MoSe 2 composite (RMC) precursor. When the RMC was heat-treated in a N 2 atmosphere, the SPR occurred between RuO 2 and MoSe 2 . Therefore, RMC was converted into RuSe 2 /MoO x composite (RSMC) in-situ , accompanied by the formation of oxygen vacancies (V O ) in the MoO x phase. In this work, the overpotential of RSMC-500 (prepared by annealing the RMC precursor at 500 °C in a N 2 atmosphere) at 10 mA cm −2 under alkaline conditions (1 M KOH) are 58 (HER) and 270 mV (OER), respectively. When using RSMC-500 as anode and cathode materials to make an electrolytic cell , a low cell voltage of 1.57 V is required under alkaline condition to achieve the current density of 10 mA cm −2 . The good performance shows the potential application of RSMC-500 in the field of renewable and clean energy area.
✓ 已验证
产品关联
DOI
高影响因子
POLYMER DEGRADATION AND STABILITY
·
2021
·
IF 5.03
Dongyue Liu,Pengfei Ji,Tianlong Zhang,Jipeng Lv,Yihua Cui
A bi-DOPO type of prepolymer for flame retardancy epoxy resins with intrinsically flame-retardant was successfully synthesized by reacting of 6,6′-((6,6′-dihydroxy-[1,1′-biphenyl]-3,3′-diyl) bis (propane-3,1-diyl)) bis(dibenzo[c,e][1,2] oxaphosphinine 6-oxide) (DOBP) with bisphenol A. The characterization of the cured epoxy resins, such as cone calorimeter, TGA/infrared, Raman and SEM indicated that DOBP with double 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) structure endowed the epoxy resins with excellent flame retardancy, including limiting oxygen index of 40.0%, V-0 rating in UL-94, remarkable smoke suppression and flame inhibition. The quenching effect of gaseous phase and charring effect of condensed phase of phosphaphenanthrene groups in prepolymer together contributed to the improvement on the flame retardant performance of the epoxy resins. In addition, due to the rigid structure of DOBP molecules, the cured d -FREP possessed high glass transition temperature of up to 192.9°C, and the tensile modulus of which was increased about 55% compared with the neat epoxy resins.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2021
·
IF 4.833
Peifan Qin,Deqi Yi,Jianwei Hao
To investigate thermal shock properties of melamine cyanurate (MCA) for molybdenum disulfide (MoS 2 ) exfoliation, the MoS 2 -MCA superlattice is prepared through self-assembly of pristine MoS 2 , cyanuric acid (CA) and melamine (MA) in water solution. The prepared MoS 2 -MCA is heated in tubular furnace with controlled temperature to obtain two-dimensional (2D)-MoS 2 precursor. Their morphologies are characterized by using Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The obtained 2D-MoS 2 precursor shows a high specific surface area at 336.90 m 2 /g due to bi-layer MoS 2 . TEM and atomic force microscope (AFM) images of 2D-MoS 2 N-methyl-2-pyrrolidone (NMP) solution further confirm the bi-layer MoS 2 exfoliation. The above results prove that MCA is a good thermal shock agent for MoS 2 exfoliation. And the prepared 2D-MoS 2 precursor could also be a good solid reservoir.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）