CHEMICAL ENGINEERING JOURNAL
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2022
·
IF 16.744
Rui Ji,Zhuzhu Zhang,Lechen Tian,Liujun Jin,Qingfeng Xu,Jianmei Lu
A novel BiOI-incorporated NH 2 -UiO-66 composite photocatalyst, NH 2 -UiO-66@BiOI, was prepared using an in-situ successive ion-insertion method. The in situ grown BiOI nanosheets exhibited an ultrathin structure and were uniformly dispersed on NH 2 -UiO-66. The formation of tight heterojunctions, characteristics of enhanced visible light absorption and availability of abundant exposed active sites facilitated the efficient activation of peroxymonosulfate and the rapid degradation of Bisphenol A in water (12 min). Surprisingly, the photocatalyst maintained a fast degradation rate of Bisphenol A under the interference of different conditions. The research explored the charge transfer pathways and radical species between the heterojunction components, indicating that the heterojunction type of the NH 2 -UiO-66@BiOI was Z-scheme. In addition, the degraded intermediate components and high mineralization rate indicated that Bisphenol A was deeply degraded. In conclusion, this study synthesized metal–organic framework-based photocatalysts through a simple preparation method, which has potential application value in the rapid degradation of bisphenol A.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2022
·
IF 24.319
Cheng Chen,Yongyi Wang,Yajing Huang,Jian Hua,Wei Qu,Dehua Xia,Chun He,Virender K. Sharma,Dong Shu
Applications of Fenton-like reactions (Fe(III)/H 2 O 2 ) without catalyst have low efficiency in remediating pollutants. Herein, pollutants containing phenolic moiety (P, e.g., paracetamol (PCM)) were demonstrated to make Fe(III)/H 2 O 2 system highly effective in degrading a wide range of contaminants. Kinetics analysis shows the self-catalytic degradation of PCM with optimum performance at pH 4.0, and Fe(III)/Fe(II) conversion was accelerated without the assistance of cocatalyst. Based on state-of-art spectroscopy measurements and theoretical calculations, the overlooked self-catalytic mechanism was revealed. In the presence of phenolic moiety, a yellow-colored high-spin P-Fe(III)-OOH complex can be formed in Fe(III)/H 2 O 2 system, which subsequently converts to Fe(II). Afterwards, the oxidation of P gives hydroquinone that also facilitates the cycling of Fe(III)/Fe(II). The accumulated Fe(II) reacts with H 2 O 2 to generate hydroxyl radicals, the major species responsible to oxidize pollutants, thereby achieving efficient decontaminant performance. Results provide new insights into the self-catalytic Fenton-like process for remediating a mixture of pollutants.
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JOURNAL OF APPLIED ELECTROCHEMISTRY
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2022
·Vol. 52
·期 11
·1617-1628
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IF 2.925
Chen Jinyang,Huang Xiaozhou,Ye Ruihong,Huang Dihui,Wang Yanjun,Chen Sheng
A series of conductive metal–organic frameworks (M-CATs) were synthesized using 2,3,6,7,10,11-hexahydroxytriphenylas a ligand following a solvothermal method, and the Cu-CAT system exhibiting the best performance was identified. Conductive Cu-CAT-anchored reduction graphene oxide composites (Cu-CAT@rGO) were prepared following a hydrothermal method. The microstructures of the systems were further characterized using X-ray diffraction, scanning electron microscopy, energy dispersion spectroscopy, and transmission electron microscopy techniques. The drip-casting membrane method was used for the fabrication of a novel electrochemical sensor based on the conductive Cu-CAT-anchored rGO (Cu-CAT@rGO/GCE). The electrochemical performance of Cu-CAT@rGO/GCE was studied using electrochemical impedance spectroscopy and cyclic voltammetry techniques. The differential pulse voltamme try technique was used for electrochemical sensing to detect the content of bisphenol A (BPA) in beverage bottles. An excellent linear detection range (0.05–100 µmol L −1 ) and a low detection limit (4.9 nmol L − 1 ; based on S/N = 3) were recorded. Therefore, this method can potentially be used to develop a new route for the detection of BPA. Graphical abstract
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FOOD CHEMISTRY
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2022
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IF 9.231
Jin Liu,Zhuoqun Su,Qinfeng Xu,Yiheng Shi,Di Wu,Lin Li,Yongning Wu,Guoliang Li
A facile approach was proposed for the preparation of boric acid-functionalized core–shell structured magnetic covalent organic framework (COF) nanocomposites through employing the Fe 3 O 4 nanoparticles as magnetic core, boric acid-functionalized COFs as the shell via sequential post-synthetic modification (denoted as Fe 3 O 4 @COF@BA). The synthesized nanocomposites showed large specific surface area, high magnetic responsiveness, and desirable chemical and thermal stability. Combined with HPLC-MS/MS, the as-prepared Fe 3 O 4 @COF@BA composite was applied as a sorbent for magnetic solid-phase extraction (MSPE) of endocrine disrupting compounds (EDCs) from meat samples. Under optimal conditions, the method displays low limits of detection (LODs, 0.08–0.72 μg kg −1 ) and good precision with relative standard deviations (RSD) lower than 5.4 %. The approach was successfully employed for the extraction and detection of EDCs in blank and spiked beef, chicken and pork samples with recovery ranging from 88.8 to 104.2 %.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Xiaotong Zhu,Yuanyuan Zhang,Shengxiao Zhang,Shuangshuang Yang,Qiang Xu
In this study, biomass carbon supported with iron and cobalt bimetal (FeCo/BC) was synthesized by a one-pot calcination method to activate peroxymonosulfate (PMS) and peroxydisulfate (PDS) for bisphenol A (BPA) degradation. Characterization with X-ray diffraction, X-ray photoelectron spectroscopy and high resolution transmission electron microscopy showed that Fe 0 , Fe 3 O 4 , Co 0 and CoO nanocrystals were included in FeCo/BC materials. The degradation results showed Fe 0.6 Co 0.4 /BC had excellent catalytic activation performance for PMS or PDS. The Fe 0.6 Co 0.4 /BC (0.0050 g) combined with 0.25 g·L −1 of PMS could completely degrade 20 mg·L −1 BPA within 8 min, and the same amount of BPA could be removed with 0.020 g Fe 0.6 Co 0.4 /BC in the presence of 0.25 g·L −1 PDS within 20 min. The corresponding total organic carbon removal rates reached 83.49% and 77.5% respectively after 2 h. The Fe 0.6 Co 0.4 /BC also had good adaptability to solution pH and practical water body. After five cycles, the degradation rates of BPA in the two systems were all over 90%, and excellent magnetism was beneficial to the reuse of catalysts. Electron paramagnetic resonance and free radical quenching tests indicated that SO 4 •- , •OH, and 1 O 2 were the main active species involved in the BPA degradation. This work not only provided a promising catalyst for the degradation of organic pollutants, but also elucidated the synergistic effect between Fe-Co bimetal alloys during PMS and PDS activation, which would facilitate the design, synthesis, and application of catalytic materials with high efficiency.
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CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2022
·
IF 3.898
Sihan Huang,Yaohan Chen,Xue Wang,Jing Guo,Yonggang Li,Lei Dai,Shenghai Li,Suobo Zhang
The past few decades have witnessed rapid gains in our demands of antifouling membranes such as water purification membranes and hemodialysis membranes. A variety of methodologies have been proposed for improving the antifouling performance and the hemocompatibility of the membranes. In this study, a series of copolymers (PSF-PESSB) containing polysulfone (PSF) and poly(arylene ether sulfone) bearing pendant zwitterionic sulfobetaine groups (PESSB) were prepared via one-pot polycondensation . Subsequently, the ultrafiltration (UF) membranes were prepared from different zwitterion-containing copolymers. The prepared membranes showed high thermal stability and mechanical properties. Besides, it also displayed attractive antifouling performance and blood compatibility. Compared with the original PSF membrane, the amount of protein absorption on the modified membrane was reduced; the flux recovery ratio and the resistance to blood cells were significantly improved. The results of this work suggest that PSF-PESSB membranes are expected to be applied in blood purification. The introduction of zwitterion-containing polymers to membranes paves ways for developing advanced hemodialysis technologies for crucial process.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Yue Zhao,Chenghong Feng,Chenhao Tian,Zhenling Li,Yu Yang
Bisphenol analogues (BPs) are widely used as plasticizers and can be released during the aging and degradation of microplastics. Their persistence in water can cause serious harm to the ecosystem and human health. To improve the capture ability of COFs toward these estrogen-like toxins from water, amino group-functionalized COFs (COFs-TpBD(NH 2 ) 2 ) were constructed from nitro group COFs (COFs-TpBD(NO 2 ) 2 ) via the reduction of nitro to amino groups, and the adsorption behaviors for the five BPs (BPA, BPF, BPC, BPS and 4-CP) were compared. The focus was laid on the role of functional-group-tuning in the changes of adsorption capacity, selectivity and mechanisms of the COFs absorbents. The results showed that TpBD(NH 2 ) 2 has a higher adsorption capacity and better adsorption selectivity for most BPs than TpBD(NO 2 ) 2 . COFs with nitro and amino groups show the best adsorption selectivity for BPC (K F = 6.71 min −1 ) and BPF (K F = 9.49 min −1 ), respectively. Chemisorption dominates the adsorption of the two COFs, and internal particle diffusion is the rate-determining step. The adsorption behavior difference between the two COFs was ascribed to the successful conversion of functional groups of the COFs from nitro to amino groups, which was proven by FT-IR, SEM, PXRD, and BET characterization results. Adsorption of BPA, BPC and BPF by TpBD(NO 2 ) 2 is positively related to hydrophobic interactions (represented by log K ow ), but the adsorption mechanism of TpBD(NH 2 ) 2 was mainly attributed to the electrostatic interaction, as evidenced by the zeta potential and pKa. Hydrogen bonds were proven to be a critical factor that affects the adsorption of BPS and 4-CP by COFs. This study on the appropriate selection of COFs functional groups can provide insight into the future design of adsorbents and the prevention of BPs pollution release from microplastics.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2022
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IF 8.025
Peng Xie,Wang Zhang,Wugao Wu,Zhuanglin Shen,Mingliang Wang,Yuxiao Lai,Yantao Chen,Zhongfan Jia
A mediation strategy can effectively overcome the low reaction activity of enzymes with nonspecific substrates. In this study, we demonstrated how phenol compounds can mitigate the substrate limitation of HRP in catalytic degradation of various organic pollutants. In a classical HRP/H 2 O 2 system, phenol and natural phenolic compounds (4-HBA & pHBA), exhibited up to over 100-fold enhancement in eliminating organic dyes and persistent antibiotics while the loading is only 2–5 wt%. A combination of molecular modelling, docking and frontier orbital energy analysis was employed to elucidate the catalytic performance and mechanism. We revealed that (1) generating phenoxyl radicals required the proximity of mediators to the HRP active centre, and (2) the subsequent efficient radical transfer to pollutants was determined by the large energy gap between the SOMO energy of phenoxyl radicals and the HOMO energy of phenols. When considering phenols as pollutants, we showed a synergistic effect on catalytic degradation of phenols, dyes, and tetracycline with a removal efficiency of 71–92 %. Overall, this work not only demonstrates that phenoxyl mediators can overcome the lower efficiency and substrate-specificity limitations of the HRP/H 2 O 2 system but also revealed their structure-mediation relationship, implying great potential in the biodegradation of diverse pollutants and their mixtures.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
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IF 16.744
Yabin Li,Jingyao Qi,Jimin Shen,Pengwei Yan,Jing Kang,Binyuan Wang,Shuyu Wang,Jinxiang Zuo,Zhonglin Chen
Peroxymonosulfate (PMS)-based advanced oxidation processes are perceived as a novel strategy for water purification. However, designing an efficient catalyst with a low metal leaching rate remains challenging. Here, under palygorskite (PAL) mediation, 16%-CoCu 0.4 Fe 1.6 O 4 @PAL (16%-CCFO@PAL) was constructed, exhibiting ample oxygen vacancies (V O ) and low metal leakage. The V O was confirmed by systematic characterizations and theoretical calculations. The catalyst showed the efficient catalytic capacity for PMS by dual-path (i.e., metal sites and V O ) activation. Large amounts of SO 4 •- , •OH, and 1 O 2 were produced, greatly destroying bisphenol S (BPS). BPS removal was greater than 99% within 25 min in the 16%-CCFO@PAL/PMS system. At the metal sites, PMS was activated under the synergistic effects of Co(II)/Co(III), Fe(II)/Fe(III), and Cu(I)/Cu(II) pairs and electron transfer. In addition to metal sites, the V O was also an activation center for PMS, which mainly captured the O I atom in [H-O I -O II -SO 3 ] - , donating an electron to O I and promoting SO 4 •- generation. The interfacial reaction mechanism was explored by in situ tests, and a dual-path activation mechanism was proposed. This work provides a new perspective for V O -assisted PMS activation for water treatment.
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CARBON
·
2022
·
IF 11.307
Bin Li,Biao Ma,Mengying Wei,Yang Li,Xiaobin Fan,Fengbao Zhang,Guoliang Zhang,Qing Xia,Wenchao Peng
Recycle of the spent lithium-ion batteries (LIBs) can reuse the toxic heavy metals for the synthesis of useful materials. In this study, the cobalt metal is obtained by recycling the cathodes of spent LIBs, which is then used as cobalt source for the synthesis of highly porous Co-NC composites. Attributing to the addition of EDTA-2Na and NaNO 3 as chelate agent and activation agent respectively, very large surface areas (>3700 m 2 /g) and highly porous structure can be achieved. These composites can activate peroxymonosulfate (PMS) effectively for the degradation of bisphenol A (BPA) in aqueous solution. The optimized Co-NC/PMS system also shows good performance in a wide pH range and great tolerance to different inorganic ions and NOMs. Radical scavenging experiments and EPR results prove that 1 O 2 is the only functional reactive oxidation species (ROS) for BPA degradation. A generation route of PMS – *OH – *O – 1 O 2 for 1 O 2 is also simulated and proved by DFT calculation. This work provides a novel way to synthesize effective catalysts for PMS activation from the environmental wastes.
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JOURNAL OF BIOCHEMICAL AND MOLECULAR TOXICOLOGY
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2022
·Vol. 36
·期 9
·e23120
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IF 3.568
Jun-Heng Jiao,Lei Gao,Wen-Long Yong,Zhong-Yun Kou,Zhi-Qiang Ren,Rui Cai,Gui-Yan Chu,Wei-Jun Pang
Bisphenol A (BPA), as a widely used plasticizer, is easily absorbed by animals and humans. It has certain toxic effects on various tissues, including liver, heart, kidney, testis, and ovary. The toxic effects of BPA on animal reproduction have aroused widespread concern, but its regulatory mechanism and antidote in female animals estrus cycle remain unclear. In this study, the results displayed that BPA destroyed the normal estrus cycle of mice through decreasing the levels of progesterone and estradiol. Furthermore, BPA significantly increased the levels of oxidative stress, autophagy, and apoptosis in ovaries and granulosa cells. Interestingly, we found that the natural antioxidant resveratrol rescued estrus disorder and impaired estradiol secretion, reduced the abnormal reactive oxygen species accumulation, autophagy, and apoptosis in BPA exposed ovarian tissues. Moreover, transmission electron microscopy showed that resveratrol reduced BPA-induced autophagic vesicles formation and flow cytometry showed that resveratrol inhibited the increase of apoptotic cells induced by BPA on granulosa cells. Therefore, the supplement of resveratrol could restore BPA-induced estrus disorder by protecting ovarian granulosa cells. Overall, resveratrol is a potential drug to alleviate BPA-induced estrous cycle disorders and ovarian damage.
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INDUSTRIAL CROPS AND PRODUCTS
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2022
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IF 6.449
Xin Zhao,Zeyu Zhang,Jinyin Pang,Ling Su
Formaldehyde attacks the ortho phenolic hydroxyl groups on the p-hydroxyphenyl and guaiac-based structures in the lignin, shedding the hydrogen atom on the ortho-position carbon and grafting hydroxymethyl group to obtain the hydroxymethylated modified lignin (HMKL). The infrared spectroscopy , hydrogen NMR spectroscopy, thermogravimetric (TG), and derivative thermogravimetric (DTG) analysis show that the hydroxymethylation modification of alkali lignin is successful. Then, lignin nanoparticles (LNPs) are prepared by the acid precipitation self-assembly method in ethylene glycol solution of hydroxymethylated modified lignin. The particle size and shape of lignin nanoparticles are determined by scanning electron microscopy and dynamic light scattering (DLS) analysis. In the liquefaction agent prepared from polyethylene glycol 400 and glycerol, the graft polyol is liquefied under methanesulfonic acid . The Fourier transform infrared spectroscopy , hydrogen NMR, and thermogravimetric analysis indicate the successful formation of nano-lignin polyols. In addition, epoxy resin is synthesized by two-step epoxidation of nano-lignin polyols including ring-opening and closed-loop epoxidation in an alkaline environment. The prepared epoxy resin from nano-lignin polyol exhibits excellent performance and wide application prospects. The optimum process conditions are the mass fraction of LNP-P is 19.98 %, the amount of catalyst (NaOH) is 20.10 %, the reaction time is 6.99 h, the solid content of the epoxy resin is 57.05 %, the viscosity is 615.58 mPa.s, the tensile strength is 44.80 MPa, the elastic modulus is 2.77 GPa.
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