Journal of Central South University
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2024
·Vol. 31
·期 4
·1163-1177
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IF 3.7
Liu Hong-yu,Lyu Hua-gang,Zhang Wen,Jiang Jun,Li Xiao-hong,Xue Sheng-guo
To improve the remediation and antioxygenic properties of ferrous sulfide (FeS) nanomaterials toward heavy metals is the focus of current research. This study employed a combination of sodium carboxymethylcellulose (CMC) and sodium dodecyl benzene sulfonate (SDBS) for the modification of FeS nanomaterials supported by porous silicon (SiO 2 /FeS) to serves as an efficient amendment for cadmium pollution. The optimized slurry with the mass ratio of CMC/SDBS to be 1:3 showed enhanced dispersion and antioxidant effects on SiO 2 /FeS (the mass ratio of surfactant to FeS was 1:1). This formulation exhibited the smallest particle size ( D 50 = 0.66 µm) and the highest absolute Zeta potential values exceeding 30 mV. Also, the obtained products demonstrated effective remediation of cadmium-contaminated solutions, with Cd(II) primarily forming stable CdS and CdSO 4 products through ion exchange and chemical precipitation. The adsorption capacity of SiO 2 /FeS-CMC/SDBS 1:3 for cadmium in air and nitrogen was remained during 30 d, reaching about 158 mg/g. Notably, under low concentration Cd contamination, the adsorption capacity of SiO 2 /FeS-CMC/SDBS 1:3 exceeded that of SiO 2 /FeS-CMC and SiO 2 /FeS-SDBS without acidification risk. In summary, this research highlights the improved remediation and antioxygenic properties achieved through CMC and SDBS co-modification of SiO 2 /FeS, providing a new amendment for Cd remediation.
研究领域:
环境科学
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材料科学
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高影响因子
JOURNAL OF POROUS MATERIALS
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2022
·Vol. 29
·期 5
·1387-1398
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IF 2.523
Ma Jingye,Liu Xiaolong,Yuan Hong
This work employed dodecyl trimethyl ammonium bromide, sodium dodecyl benzene sulfonate (SDBS) or dodecyl dimethyl betaine (BS–12) along with a PEO–PPO–PEO (P123) block copolymer to obtain a dual template system for catalyst synthesis. Using Pt(NH 3 ) 4 (NO 3 ) 2 as the platinum source, a series of mesoporous Pt/SAPO–11 catalysts with different Pt loadings were prepared via an in situ synthesis and characterized by X-ray diffraction, specific surface area analysis, temperature programmed desorption, X-ray photoelectron spectroscopy and transmission electron microscopy. These catalysts each had a complete AEL model structure with pore diameters in the range of 8.1–10.9 nm and specific surface areas between 103 and 168 m 2 /g. At a Pt loading of 1.0 wt%, the Pt/SAPO–11–S synthesized with SDBS–P123 as the dual template showed the least Pt loss, the largest specific surface area (159 m 2 /g) and the smallest Pt particle size (6.1 nm). This material also exhibited the highest ratio of Pt metal to oxide, indicating that it contained more active metal sites. This catalyst was applied to the decarboxylation of oleic acid under CO 2 to prepare C8–C17 alkanes, the main component of biological aviation kerosene. At a reaction temperature of 340 °C and catalyst-to-oil mass ratio of 1:10, the yield of C8–C17 alkanes reached 80.6% after 6 h. This same catalyst provided a 73.8% yield after six reuses, demonstrating good stability.
研究领域:
催化化学
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能源化学
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高影响因子
Gas Science and Engineering
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2026
·
IF 6.8
Yuanyuan Guo,Wanqing Wu,JinHui Liu,Chengzhuo Li,Ping Guo,RuiXue Guo,Haokun Shi,Ziyang Zhang,Haidong Cao,Qinggong Zheng
The first simulation of adding surfactants to mixed H 2 hydrates was conducted. • Hydrophilic groups of SDBS affect the local arrangement of water molecules. • H 2 /1,3-DIOX hydrate growth can be augmented with 0.3 wt% SDBS. One comparatively safe way to store hydrogen is via hydrogen clathrate hydrates. However, advancements in hydrogen hydrate technology have been hindered by difficulties in attaining pure hydrate phases and addressing the intrinsic gas-liquid mass transfer constraints. As an efficient hydrate promoter, the regulatory effect and intrinsic mechanism of sodium dodecylbenzenesulfonate (SDBS) on hydrogen hydrate formation have not been systematically elaborated. This study combines experimental testing and molecular simulation techniques to deeply analyze the promoting effect and regulatory mechanism of SDBS on the formation of hydrogen hydrates. Molecular-level simulations revealed that the hydrophilic group -SO3 — of SDBS can effectively locally stable water clusters and reduce resistance to water mass transfer, while hydrophobic chains facilitate the transfer of mass between gas-liquid and hydrogen diffusion in solution. Under 13.2 MPa and 271.65 K condition, the gravimetric hydrogen storage capacity of the mixed unit with 0.3 wt% SDBS added increased by 36.79%, reaching 0.383 ± 0.042 wt% and t 90 decreased by 29.02%. The findings of this work provide new ideas and experimental support for the optimization of hydrogen energy storage and transportation technologies. Download: Download high-res image (240KB) Download: Download full-size image
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Xiuzhou Lin,Long He,Lan Luo,Qiaoling Yang,Baojie Dou,Xinmiao Jiang,Yan Wang,Xinyue Liang
Hollow Co x Fe 3-x O 4 nanocontainers were loaded with SDBS and sealed by KH-560. • Nanocontainers participated in MAO growth and regulated discharge defects. • The specific wear rate of MAO-1 decreased by 95.8% compared with MAO-0. • MAO-1 showed the best corrosion resistance with superior electrochemical properties. • SVET confirmed corrosion-responsive inhibitor release and self-healing protection. The intrinsic porosity and microcracks inherent to micro-arc oxidation (MAO) coatings create preferential diffusion paths for corrosive species, thereby limiting the long-term corrosion protection of magnesium alloys. In this work, hollow mesoporous Co x Fe 3-x O 4 nanocontainers were synthesized via a cetyltrimethylammonium bromide (CTAB) assisted solvothermal method, loaded with sodium dodecylbenzenesulfonate (SDBS) as a corrosion inhibitor, sealed with KH-560 silane coupling agent, and subsequently incorporated into MAO coatings on AZ31B magnesium alloy. The nanocontainers participated in coating formation through pore filling and co-solidification with molten oxides. Moderate addition refined discharge pores and improved coating integrity, whereas excessive addition caused particle agglomeration and inhomogeneity. At the optimal concentration of 1 g·L -1 , MAO-1 exhibited the greatest coating thickness (37.96 μm). MAO-1 exhibited the highest coating resistance ( R c = 2.40×10 7 Ω·cm 2 ) and charge-transfer resistance ( R ct =1.77×10 6 Ω·cm 2 ), together with the lowest corrosion current density (2.85×10 -9 A·cm -2 ). Its specific wear rate was reduced to 2.56×10 −6 mm 3 ·N -1 ·m -1 , which is 95.8% lower than that of MAO-0. Scanning vibrating electrode technique (SVET) measurements further confirmed corrosion-responsive self-healing behavior in MAO-1: after 12 h of immersion, the maximum local potential-difference signal decreased from 0.0105 to 0.0042 mV, representing a 66.1% reduction compared to MAO-0. The progressive attenuation of local electrochemical activity indicates that the release, migration, and interfacial adsorption of SDBS effectively suppress localized anodic dissolution and partially restore protection at damaged regions. Overall, the Co x Fe 3-x O 4 @SDBS@KH-560 nanocontainers synergistically combine barrier reinforcement with inhibitor-mediated active protection, thereby enhancing the corrosion resistance, wear resistance, and self-healing capability of the MAO coating.
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高影响因子
RENEWABLE ENERGY
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2022
·
IF 8.634
Lu Liu,Xuelai Zhang,Xiangwei Lin
Benefitting from high storage density, phase change material (PCM) has been widely utilized in cold chain logistics. However, the phase change process of composites is normally non-isothermal, which will lead to phase change hysteresis (PCH). The exploration of the mechanism and influence factors of PCH remains a huge challenge. In this paper, a nanocomposite PCM (NCPCM) based on paraffin (PA) was prepared to address this issue via the two-step method. Here, the applications of multi-walled carbon nanotubes (MWCNTs) and sodium dodecylbenzene sulfonate (SDBS) were contributed to the enhancement of thermal conductivity and suspension stability. Subsequently, after various characterization techniques, the results showed that thermal conductivity of the NCPCM with 1.0 wt% MWCNTs and a 2:1 mass ratio of MWCNTs and SDBS increased by 1.86 times. Moreover, the NCPCM exhibited high thermal charging-discharging efficiency, thermal stability, and cyclic stability. More importantly, the PCH has been studied via the dynamic differential scanning calorimetry (DSC) method. The effects of temperature range, temperature changing rate, and sample mass on the hysteresis degree were investigated. Furthermore, the PCH was interpreted in terms of energy storage, temperature delay, internal thermal resistance , crystallinity , and interfacial free energy . It was proved that the NCPCM possesses a smaller hysteresis degree when the temperature range was −40–50 °C, temperature changing rate was 10 K min −1 , and sample mass was within 10 mg.
研究领域:
材料科学
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热能工程
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2023
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IF 9.8
Feng Wang,Le Zhang,Yuting Luo,Yi Li,Xiaoshi Cheng,Jiashun Cao,Junfeng Wu,Haining Huang,Jingyang Luo,Yinglong Su
The excessive application of antibiotics and surfactants resulted in their massive accumulation in waste activated sludge (WAS), but the co-occurrent impacts of antibiotics and surfactants on the antibiotic resistant genes (ARGs) fates have seldom reported. This work mainly revealed the roles and critical mechanisms of sodium dodecyl benzene sulfonate (SDBS) on the sulfadiazine (SDZ) stressing for ARGs distribution during WAS anaerobic fermentation. High-throughput qPCR and metagenomic analysis revealed that SDBS aggravated the SDZ selective pressure, and accelerated the proliferation of ARGs. The total abundance of ARGs was increased from 8.81 × 10 10 in SDZ to 1.17 × 10 11 copies/g TSS in the SDBS/SDZ co-occurrence system. Specifically, the absolute abundances of ermF (MLSB), mefA (MLSB), tetM-01 (tetracycline), tetX (tetracycline), sul2 (sulfonamide) and strB (aminoglycoside) were risen from 4.60 × 10 8 –7.44 × 10 9 copies/g TSS in the SDZ reactor to 1.02 × 10 9 –4.63 × 10 10 copies/g TSS in SDBS/SDZ reactor. SDBS was contributed to the SDZ solubilization and simultaneously effective in disintegrating extracellular polymeric substances and improving cell membrane permeability, which would facilitate the SDZ transport and its interactions with ARGs hosts. Consequently, the microbial community structure was evidently altered, and the typical ARGs hosts ( i.e. , Saccharimonadales and Ahniella ) were greatly enriched. Also, the cell signal transduction systems ( i.e. , glnL , glrK and pilG ), oxidative stress response ( i.e. , frmA and recA ) and bacterial secretion systems ( i.e. , VirB4 ), which were related with ARGs propagation, were all provoked in the co-occurred SDBS/SDZ reactor compared with that of sole SDZ. PLS-PM analysis suggested that the bacterial community was the predominant factor that determined the ARGs fates, followed by mobile genetic elements and metabolic pathway. This work demonstrated the interactive effects of surfactants and antibiotics on the ARGs fates in WAS fermentation systems and gave insightful implications on the ecological risks of different exogenous pollutants.
研究领域:
环境科学
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微生物学
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基因组学
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生物技术
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DOI
PubMed
高影响因子
Journal of Water Process Engineering
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2024
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IF 6.3
Yining Dai,Yanling Yang,Xing Li,Nan Wang,Zhiwei Zhou,Jianyong Feng,Yongwang Liu,Hang Li
Reusing treated greywater indoors in buildings is an advanced strategy to increase the utilization of limited water resources , but currently there is a lack of feasible technologies for efficiently purifying greywater indoors. In this study, we construct the heterogeneous TiO 2 -stainless steel mesh (SSM) interface with photocatalytic degradation of sodium dodecylbenzene sulfonate (SDBS) by under vacuum ultraviolet (VUV) irradiation. At the initial SDBS of 10 mg/L, the degradation rates of SDBS with UV/TiO 2 -SSM and VUV/TiO 2 -SSM process were 53 % and 74 % respectively within 50 min. The results of specific scavengers experiments and EPR analysis revealed that the ·OH, h + and direct photolysis contributed to SDBS degradation and mineralization . The degradation rate of SDBS in VUV/TiO 2 -SSM process was higher at weak acid or weak alkali conditions, while the performance of UV/TiO 2 -SSM process was better at alkaline conditions. Both Cl − and HCO 3 − could inhibit SDBS degradation, while SO 4 2− slightly promoted the degradation. Active oxygen species mainly degrade SDBS in two ways: by attacking the α carbon, β carbon, or branched chain carbon on the alkane chain ; or by attacking the adjacent carbon on the alkane chain, resulting in the formation of three branch forms of products. The toxicity of the intermediate products shows a decreasing or stable trend. The experiment shows that UV or VUV photocatalytic TiO 2 -SSM has a good prospect of removing anionic surfactant in the real greywater. This study provides strategies for the development and design of indoor water reuse technologies and devices in buildings.
研究领域:
环境科学
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化学工程
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高影响因子
DYES AND PIGMENTS
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2020
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IF 4.613
Lina Zhang,Shixin Zhou,Shenxi Min,Xiaobo Yu,Guangliang Hou,Qin Tong,Bin Dong,Huifang Zhu,Bo Song
Near-infrared (NIR) organic fluorescent probes have attracted great deal of attention for application in cell imaging , where the probes demand good water solubility, strong emission and good cytocompatibility. In this study, a conjugate of anthraquinone and tetraphenylethylene is introduced into an amphiphile (denoted by BTPEAQ-10) with four pyridinium terminated aliphatic chains. The assemblies of BTPEAQ-10 show an NIR emission peaked at 670 nm. Ionic co-assembly with sodium dodecyl benzene sulfonate leads to drastic enhancement of the fluorescent emission to 30-fold. Controlling experiments on different surfactants and anionic groups show that both the hydrophilic group and the alkyl chain play critical role to the emission enhancement. Both the assemblies and co-assemblies have good water solubility and cytocompatibility, and were applied in cell imaging . The co-assemblies showed much better contrast of cell imaging due to the higher emission property.
研究领域:
化学
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生物学
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材料科学
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
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IF 9.136
Zhiqin He,Yun Li,Benkun Qi
Utilization of greywater can relieve the pressure of water scarcity. However, the widespread presence of anionic surfactants in greywater poses threats to the environment and the health of the human and ecosystem. In this study, bioinspired polyethyleneimine-tannic acid (PEI-TA) complexes were innovatively used for coating of corn straw (CS) and the as-prepared PEI-TA modified CS (PEI-TA@CS) was applied for adsorptive removal of the commonly found sodium dodecylbenzene sulfonate (SDBS) in greywater. The adsorption performance of the modified CS was maximized under the following optimized preparation conditions: 5 g/L of PEI concentration with molecular weight of 3000 Da, 0.5 g/L of TA concentration and 3 h of modification time. Investigation of the adsorption conditions showed that adsorption of SDBS on the adsorbent were pH-independent at pH ≤ 7 and the adsorption process reached equilibrium in about 3 h. The pseudo-second-order model and Freundlich model fit well the kinetic and isotherms data, respectively, and the nature of the adsorption was exothermic and spontaneous. Mechanism analysis showed that the adsorption of SDBS was dominated by hydrophobic interactions. With a dosage of 100 mg, PEI-TA@CS could satisfactorily remove 94.95 % of SDBS from its aqueous solution (50 mg/L). Even in the complex synthetic greywater, the removal of SDBS still reached as high as 81.99 %. The overall results indicated that PEI-TA@CS has promising applications in the removal of anionic surfactants from greywater.
研究领域:
环境科学
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水处理
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材料科学
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化学工程
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DOI
高影响因子
SOLAR ENERGY
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2024
·
IF 6
Shengxing Zhou,Wenhao Chen,Weiqing Liu,Jiale Cao,Ligang Yuan
The utilization of binder-free TiO 2 paste allows for the dye-sensitized solar cells (DSSCs) TiO 2 electrode fabrication at low temperatures, thus making it a potential material for flexible solar cell devices. However, the physical robustness of formed electrodes using TiO 2 paste at low temperatures remains challenging, including issues such as cracking due to film stress and challenges in adjusting the viscosity of the TiO 2 paste. In this study, we enhanced the binder-free TiO 2 paste performance by incorporating sodium dodecylbenzene sulfonate (SDBS) as an additive for TiO 2 electrode precursor solution. It demonstrated that SDBS additives help to relieve internal stress and ultimately enhance the physical and structural characteristics of the films by improving the viscosity in the TiO 2 paste and promoting the dispersed pinholes within the TiO 2 films. Furthermore, implementing TiO 2 paste with varying ratios of SDBS has enabled the fabrication of DSSCs with the highest achieved power conversion efficiency (PCE) of 4.53%, representing an enhancement of nearly 15% compared to TiO 2 paste without SDBS. This research presents a practical and effective approach for preparing highly efficient binder-free TiO 2 paste.
研究领域:
材料科学
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太阳能
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化学工程
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2025
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IF 2.8
Min Deng,Chuxiang Zhou,Gang Wu,Yinan Xu,Shenwen Fang,Ming Duan
Anisotropic particles have garnered significant attention due to their unique structural characteristics, and emulsion polymerization is one of the synthesis strategies. In this study, for the first time, poly(styrene-maleic anhydride) (SMAA) and small-molecule surfactant were employed as the composite emulsifiers during the emulsion polymerization of styrene (St) for synthesizing peanut-shaped polystyrene (PS) nanoparticles. The results of NMR, FTIR, and SEM confirmed this method was reliable. Furthermore, the polymerization conditions were optimized by using particle morphology as the primary optimization parameter. The optimized polymerization conditions are as follows: St concentration of 11 wt%, emulsifier concentration of 0.6 wt% in water, the emulsifier being a composite system of sodium dodecylbenzenesulfonate (SDBS) and SMAA in a mass ratio of 1:2, initiator concentration of 0.5 wt% (relative to St mass), crosslinker dosage 0.6 wt% (relative to St mass), reaction temperature of 70°C, and the reaction duration of 6 h. The resulting polymer products exhibited a distinct peanut-like morphology, with an average particle diameter of 54.1 nm and an aspect ratio of 2.44. These findings provide some novel insights into the preparation of anisotropic particles.
研究领域:
材料科学
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高分子化学
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纳米技术
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化学工程
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高影响因子
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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高影响因子
危险品化学品经营许可证（带存储）