Journal of the Taiwan Institute of Chemical Engineers
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2021
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IF 5.876
Jingke Song,Zhe Zhang,Songsong Zhi,Bingxuan Niu,Han Dong,Dapeng Wu,Kai Jiang
Background Development of human society has led to various environmental problems and energy crisis. Methods In this paper, Bismuth oxychloride (BiOCl) with a 3D network structure was prepared via a simple one-step sodium dodecylbenzenesulfonate (SDBS) assisted hydrothermal method and used for CO 2 reduction and antibiotic degradation. Consideration was given to the influence of addition of SDBS in the preparation process on the microscopic morphology and energy band structure of the photocatalyst. Significant findings The results of the present study indicate that the formation of the 3D network structure helps to expose the {001} facets of BiOCl and promotes the generation of more oxygen vacancies. As-prepared BiOCl-0.6, i.e., 0.78 g of Bi(NO 3 ) 3 ·5H 2 O with 0.6 g SDBS, demonstrating the highest photocatalytic reduction performance of CO 2 . The production of CO by BiOCl-0.6 can reach 59.5 and 20.1 µmol g −1 after 4 h of UV-vis/vis illumination, which is ten times higher than the control BiOCl. In addition, BiOCl prepared with a 3D network structure also showed efficient antibiotic (oxytetracycline hydrochloride, OTC) degradation ability. When the initial concentration of OTC was 20 mg/L, OTC was completely removed after 45 min of UV-vis irradiation, and 77.2% of OTC was removed after 90 min of photocatalytic reaction under visible light. In the photodegradation process, photogenerated holes (h + ) and superoxide radical ( · O 2 − ) play an important role.
研究领域:
环境科学
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材料科学
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化学工程
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光催化
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Xiaoming Luo,Haiyang Gong,Ziling He,Peng Zhang,Limin He
The acoustic parameters and operating conditions that determine efficiency of oil recovery from oily sludge are studied. Based on this, the mechanism of ultrasonic disintegration of oily sludge is analyzed. The results show that lower frequency ultrasound results in larger and more energetic cavitation bubbles that are more effective in the desorption of oil from solid particles. Moreover, acoustic intensity and treatment time that correspond to maximal oil recovery are found. Increasing the ratio of water to sludge and pH can reduce the slurry viscosity and facilitate the formation of HSiO 3 − , respectively, which improves the oil recovery efficiency. Moreover, Triton X-100 has better oil solubilizing effects than SDBS. After ultrasonic treatment, small amounts of asphaltenes are more stable on solid particles than other components. The heteroatoms such as S, N, and O in asphaltenes form hydrogen bonds with hydroxyl groups on the surface of the particles, impeding the desorption of oil. Mechanical effects such as shock waves and micro jets due to acoustic cavitation can break the hydrogen bonds between asphaltenes and solid particles, thereby facilitating oil recovery from oily sludge.
研究领域:
环境工程
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化学工程
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超声学
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废物管理
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产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2017
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IF 4.9
Rui Zhang,Yang Liu,Xinran Huang,Mengchen Xu,Rutao Liu,Wansong Zong
The extensive use of surfactants in food, laundry products and agriculture has caused concern about their biosafety. However, few studies have been done on their potential effect on the lipase which has always been used with surfactants in food and laundry industry. Herein, we investigated the interaction of three surfactants (sodium dodecyl sulfate (SDS), sodium dodecyl benzene sulfonate (SDBS), sodium lauryl sulfonate (SLS)) with Candida rugosa lipase (CRL), which is a popular biocatalyst used regularly with surfactants. The effect of the three surfactants on the conformation and activity of CRL was evaluated by using multiple spectral methods, enzyme activity assay and molecular docking modeling. The results demonstrated that CRL interacted with SDS, SDBS and SLS primarily through hydrophobic forces, H-bonding and electrostatic forces, respectively. The binding constants (K A ) of SDBS with CRL varied with temperature: 1.99 × 10 3 mol/L at 298 K and 4.13 × 10 3 mol/L at 318 K. SDS and SDBS affected the secondary structure and skeleton of CRL, which changed the polarity of CRL and enhanced its activity. SLS also changed the secondary structure and activity of CRL moderately, but had little effect on its polarity and chromophore microenvironment. Accordingly, all three surfactants exhibited effect to CRL on the molecular level calling for more attention to pay on their biosafety. The work demonstrates that SDS, SDBS and SLS could cause negative effects to CRL from different angles and therefore are not bio-friendly detergents.
研究领域:
生物化学
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分子生物学
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酶学
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环境科学
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Qianqiang Tang,Fuhong Wang,Mingchao Zhang,Wenfu Chen,Pengyu Chen,Jiqian Tan,Shiyang Shi,Xiaosa Li,Wenhui Shang,Ben Wang,Yaokang Zhang,Metin Sitti,Hongzhang Wang,Xuechang Zhou
The autonomous systems with embodied energy and intelligence show great potential to build future robots that are inspired by living organisms. This work proposes a liquid metal droplet-based machine that can be self-propelled in a controllable way through surrounding [CuCl 4 ] 2- ions interaction. Different autonomous behaviors of liquid metal droplets can be tuned by altering the distribution [CuCl 4 ] 2- of ions and the immersing ratio of CuCl 2 solution on liquid metal droplets. The underlying mechanisms behind the deformation and locomotion of the liquid metal droplet are attributed to the unbalanced surface tension and surface Marangoni flow induced by synergistic effect of galvanic replacement reaction and in situ displacement reaction. The autonomous liquid metal droplets based on microfluidics and sodium dodecyl benzene sulfonate (SDBS)-modified CuCl 2 solution are demonstrated, which induces the realization of shuttling a narrow channel, offset correction, climbing low-rise stairs, medium transportation, circuit repair, chemotactic transfer and escape from a maze independently. This work elucidates the autonomous liquid metal droplet (ALMD) driven by surrounding [CuCl 4 ] 2- ions, highlighting motion mode switching, interpretation of motion mechanisms, multifunctional manipulation and application, which offers a new path for further development of liquid robots with autonomous capability and embodied energy, and progressing toward physically intelligent robots.
研究领域:
柔性机器人
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液态金属机器人
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自主系统
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微流控技术
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化学驱动
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材料科学
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表面化学
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仿生机器人
✓ 已验证
产品关联
DOI
高影响因子
ACS ES&T Engineering
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2022
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IF 0
Ruobin Dai,Jiansuxuan Chen,Hongyi Han,Huimin Zhou,Zhiwei Wang
Polymeric membranes, which are typically synthesized from fossil-based polymers, will reach their end of life (EOL) and then be replaced, due to the inevitable accumulation of membrane fouling even though the periodic cleaning is applied. The conventional disposal methods of the EOL membranes are landfilling and incineration, which will lead to additional carbon emission and fossil resource depletion. Herein, we proposed a surfactant-regulated interfacial polymerization strategy, by adding sodium dodecylbenzene sulfonate (SDBS) in the piperazine (PIP) aqueous solution, for the one-step upcycling of the EOL polymeric microfiltration membrane to obtain a thin-film composite polyamide (PA) nanofiltration (NF) membrane. Revealed by the quartz crystal microbalance with dissipation analysis and molecular dynamics simulation, the presence of SDBS reduced interfacial tension (IFT) and regulated interfacial wettability, thereby facilitating adequate and uniform uptake of PIP monomers. The resulting upcycled NF membrane with 4 critical micelle concentration (CMC) of SDBS addition exhibited a favorable pure water permeance (20.1 ± 0.6 L m–2 h–1 bar–1) and a satisfactory Na2SO4 rejection of 98.6 ± 0.4% owing to the formation of a continuous PA layer with high cross-linking degree (89.3 ± 0.5%). The Na2SO4 permeability of the 4 CMC upcycled NF membrane was more than 1 magnitude lower than that of the upcycled NF membrane without SDBS addition. This study provides a facile, rapid, and cost-effective method for the one-step upcycling of EOL polymeric membranes, which thus improves the sustainability of membrane technology.
研究领域:
材料科学
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环境工程
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膜技术
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产品关联
DOI
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Yanan Zhang,Fei Lu,Yang Yu,Long Su,Yanan Gao,Liqiang Zheng,Xinpei Gao
Ionic liquid (IL)/H 2 O mixtures with tunable lower critical solution temperature (LCST) behavior exhibit tantalizing prospect in the field of liquid-liquid phase separation and purification. Herein, different types of amphiphiles were evaluated for the facile regulation of IL ([P 4444 ][DMBS]) based aqueous biphasic systems (ABSs). Interestingly, the addition of zwitterionic 3-(1-dodecyl-3-imidazolio) propanesulfonate (DIPS) remarkably increases the phase separation temperature of IL aqueous solution, while the addition of anionic sodium dodecyl benzene sulfonate (SDBS) and dodecyl-benzenesulphonic acid (DBSA) results in decreasing of the phase separation temperature. The tunable phase separation temperature ranges from 10 to 90 °C, which almost cover the full usable temperature range of ABSs. The regulation mechanism of amphiphile additives on the LCST behavior of IL/H 2 O mixtures was investigated through isothermal titration calorimetry , 1 H NMR spectroscopy and molecular dynamics simulations . Briefly, the addition of zwitterionic DIPS increased LCST through electrostatic shielding effect, while the addition of anionic SDBS and DBSA decreased LCST through ion exchange effect. As a proof of concept, the amphiphile regulated ABSs were demonstrated to selectively separate aliphatic and aromatic amino acids .
研究领域:
化学
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材料科学
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分离技术
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物理化学
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产品关联
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2020
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IF 1.701
Chen Li,Lijie Wang,Hong Xu,Jinxiang Dong
Sodium oxalate is a detergent builder candidate due to its good performance in detergent formulations. However, sodium oxalate softens water by forming precipitates, thus preventing calcium oxalates from depositing on fabrics is a key goal for sodium oxalate-based detergents. Surfactants and builders are two main ingredients in detergents. Here, six anionic surfactants were chosen to study their deposition effects on cotton fabric during washing. Ash deposition analysis was used to evaluate the amount of calcium oxalate deposition on cotton fabric. X-ray diffractometer and scan electron microscope were performed to the study crystal phase and morphological changes of calcium oxalates in the presence of the different anionic surfactants, and the total interaction energy between calcium oxalates and cotton fabric was calculated by Derjaguin–Landau–Verwey–Overbeek (DLVO) theory in each case. The results showed that different anionic surfactants have a different effect on the ash deposition, primarily that the concentration of surfactants had less influence on the deposition with the exceptions of sodium dodecyl benzene sulfonates (SDBS) and sodium methyl ester sulfonates (MES). Anionic surfactants can influence both phase and morphology of calcium oxalates, which might influence the zeta potential of the calcium oxalates. When the calcium oxalates are of the same phase, the deposition amount decreased with increasing maximum total interaction energy (VTmax). The greatest decrease in calcium oxalates deposition occurred in the presence of sodium alkyl ether sulfates (AES) and disodium lauryl sulfosuccinates (AEMES), of which VTmax is the largest.
研究领域:
材料科学
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纺织化学
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表面化学
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胶体与界面科学
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化学工程
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分析化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）