Sustainable Materials and Technologies
·
2026
·
IF 9.7
Haize Jin,Ziyuan Wang,Kaiqiang Hong,Xiaoxia Huang,Qikun Wang
The construction of a synergistic adsorption-photocatalysis-peroxydisulfate (PDS) activation system holds great promise for efficient organic pollutants degradation. Herein, cetyltrimethylammonium bromide (CTAB)-modified geopolymer/Ag 9 (SiO 4 ) 2 NO 3 /g-C 3 N 4 (GACC) adsorbent-photocatalyst powder and porous membranes were rationally designed by combining geopolymerization and co-precipitation reactions. The CTAB was successfully introduced to endow the material with positively charged active sites via electrostatic anchoring and hydrophobic assembly. This enabled GACC to effectively capture of both negatively charged PDS and positively charged or zwitterionic moxifloxacin (MOX) species within a wide range of pH values. And the outstanding adsorption response capability of GACC exhibited rapid adsorption-degradation kinetic matching without pre-adsorption. The introduction of CTAB increased the specific surface area, and broadened the visible-light absorption range and reduced the band gap, thereby enhancing charge separation efficiency and facilitating PDS activation. Additionally, the fluorescence lifetime of GACC was found to be prolonged, and the electric double-layer capacitance (C dl ) results confirmed that CTAB facilitated the increase of available active sites. Under simulated sunlight, the GACC powder achieved a MOX removal efficiency of 93.67% within 10 min. Moreover, the GACC porous membranes prepared via H 2 O 2 foaming exhibited comparable degradation performance to powder counterpart (94.10% at 30 min). Furthermore, under dynamic conditions, these membranes exhibited excellent recyclability, highlighting their potential for practical applications. Mechanistic studies revealed that photogenerated electrons dominated PDS activation, while h + , ·OH, ·O 2 − , ·SO 4 − , and 1 O 2 collectively contributed to MOX degradation. This work provides a promising strategy for designing high-performance monolithic adsorbent-photocatalyst systems with synergistic adsorption-photocatalysis-PDS activation for efficient and sustainable wastewater treatment.
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Xuemei Li,Qin Guo,Guanhua Jin,Jingmei Zhang,Biao Ma,Zeyang Zhu,Yu Zhang,Haitao Meng,Shouzhu Li,Quanlong Xu
Antibacterial fiber materials have found widespread use in textiles. However, conventional antibacterial fibers are typically polymer-based, which often results in a trade-off between flame retardancy and antibacterial activity. In this study, SiO 2 nanofibers (SiO 2 NFs) were first prepared using template-free electrospinning from a Si(OH) 4 solution without the use of polymers. Then, ZnO nanosheets were grown on the SiO 2 NFs matrix through a hydrothermal reaction under the synergistic effect of Cetyltrimethylammonium bromide (CTAB), which resulted in ZnO nanosheets/SiO 2 nanofibers (ZnO NSs/SiO 2 NFs) with both high antibacterial activity and flame retardant properties. This process enabled the controllable synthesis of ZnO nanosheets on SiO 2 NFs. The antibacterial rate of ZnO NSs/SiO 2 NFs against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) exceeded 99.90 %, owing to their unique morphological advantages, high active centers, and sufficient surface positive charge. Cytotoxicity tests confirmed that ZnO NSs/SiO 2 NFs exhibited no significant cytotoxicity and demonstrated good cell compatibility. Furthermore, ZnO NSs/SiO 2 NFs not only displayed excellent flame retardant properties but also maintained a 99.90 % antibacterial rate after continuous exposure to a flame for 10 min at 519.9°C (the alcohol lamp’s flame temperature). In addition, after 10 cycles of washing, ZnO NSs/SiO 2 NFs still maintained a 96.50 % antibacterial rate against E. coli and S. aureus , which demonstrated their excellent reusability. Therefore, a multifunctional pure inorganic nanofiber was developed, which exhibited strong biological activity, flame retardancy, antibacterial properties, and cycle stability. This research and development of antibacterial fibers laid a solid foundation for the further expansion of the antibacterial fabric market.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
纺织工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2019
·Vol. 9
·期 11
·1537
·
IF 4.034
Rui Yun,Li Luo,Jingqi He,Jiaxi Wang,Xiaofen Li,Weiren Zhao,Zhaogang Nie,Zhiping Lin
Cesium lead halide perovskite nanocrystals (NCs) have attracted enormous interest in light-emitting diode, photodetector and low-threshold lasing application in terms of their unique optical and electrical performance. However, little attention has been paid to other structures associated with CsPbBr3, such as CsPb2Br5. Herein, we realize a facile method to prepare dual-phase NCs with improved stability against polar solvents by replacing conventional oleylamine with cetyltrimethyl ammonium bromide (CTAB) in the reprecipitation process. The growth of NCs can be regulated with different ratios of toluene and ethanol depending on solvent polarity, which not only obtains NCs with different sizes and morphologies, but also controls phase transition between orthorhombic CsPbBr3and tetragonal CsPb2Br5. The photoluminescence (PL) and defect density calculated exhibit considerable solvent polarity dependence, which is ascribed to solvent polarity affecting the ability of CTAB to passivate surface defects and improve stoichiometry in the system. This new synthetic method of perovskite material will be helpful for further studies in the field of lighting and detectors.Keywords:CsPbBr3;CsPb2Br5;solvent polarity;CTAB;phase transition
研究领域:
材料科学
·
纳米技术
·
光电
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Pengyuan Dong,Qiang Deng,Qimeng Zhang,Changdong Chen,Chenghao Yang
The garnet-type solid electrolyte Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) was modified with a cationic surfactant Cetyltrimethylammonium Bromide (CTAB) to improve the dispersion of LLZTO inorganic particles in Poly (ethylene oxide) (PEO) electrolyte (PEO-LLZTO@CTAB) by a liquid phase casting method. During fabrication, the cationic modifier CTAB is uniformly adsorbed on the surface of LLZTO particles, which can effectively reduce their surface energy and lead to a thin CTAB surface coating layer. This fabricated PEO-LLZTO@CTAB can avoid the aggregation of LLZTO particles in the composite solid-state electrolyte (CSSE) and improve the interfacial contact at the PEO/LLZTO interface, thus reducing the overall resistance of PEO-LLZTO@CTAB/Li half-cell and inhibiting the dendrite growth during cycling. The all-solid-state batteries (ASSBs) with LiFePO 4 (LFP) as the cathode, PEO-LLZTO@CTAB as the electrolyte and Li as the anode exhibit a high initial discharge capacity of 146.6 mAh-g −1 , excellent rate performance and high-capacity retention of 91.0 % after 300 cycles at 0.2 C multiplier and 60 °C within the voltage range of 2.7–4.0 V.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Xueyi Guo,Weijia Wang,Ying Yang,Qinghua Tian,Yang Xiang,Yan Sun,Zhiming Bai
Magnetic nano capture agent (MNCA)-based magnetic separation can remove heavy metals from blood efficiently and safely. It has been considered as the next-generation therapy for heavy metal intoxication. In this work, we report the first use of MNCA to remove arsenic (As) with high efficiency from blood. MNCA with a flexible, non-covalent and biocompatible surface layer has been synthesized by packaging cetyltrimethylammonium bromide (CTAB) and bovine serum albumin (BSA) together with oleic acid coated magnetic iron oxide nanoparticles (MNP@OA) via Van der Waals force. This surface layer enhances arsenic anion diffusion from the surface to the binding sites, leading to increased arsenic removal performance of MNCA. The adsorption capacities of BSA and CTAB enfolded MNP@OA (MNP@CTAB-BSA) for As (III) and As (V) are 131.00 mg g −1 and 119.58 mg g −1 , respectively. 89.02% of As (III) and 81.78% of As (V) are removed from blood using MNP@CTAB-BSA, and the residual concentrations of As (III) and As (V) in blood decrease from 400.00 μg L −1 to 43.93 μg L −1 and 72.88 μg L −1 , respectively. The as-synthesized MNP@CTAB-BSA shows excellent biocompatibility. Under operation condition, only 0.80% of hemolysis and 1.64% of plasma protein adsorption are induced by MNP@CTAB-BSA, and the cell viability of peripheral blood mononuclear cells (PBMCs) is more than 95.53%. This study paves a fast, safe and effective way for arsenic intoxication therapy.
研究领域:
纳米技术
·
环境科学
·
毒理学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2024
·
IF 8
Zhiying Li,Lei Zhao,Qing Ao,Ge Zhang,Dongqing Kang,Yingli Li,Jian Liu,Gongtao Ding,Zhongren Ma,Yeit Haan Teow,Mohd Shaiful Sajab,Zhiqiang Li,Zifan Wang
Studying the adsorption behavior of cationic surfactants can help to develop more effective strategies to limit their dispersion in the environment. However, there have few studies on the adsorption of cationic surfactants from the perspective of critical micelle concentration (CMC). In this study, with cetyltrimethylammonium bromide (CTAB) and octadecyl trimethylammonium bromide (OTAB) serving as the model cationic surfactants, the effect of CMC on the adsorption behavior of cationic surfactant onto the surface of sodium alginate/silica (SA/SiO 2 ) microspheres was systematically revealed. The adsorption mechanism relative to CMC was investigated under different conditions, including surfactant concentration, pH, temperature, and adsorption time. The results suggest that at identical concentrations, the smaller the CMC value of the cationic surfactants, the greater the adsorption amount (q t ). q t for CTAB and OTAB were 583.2 and 678.0 mg/g respectively, with the concentration higher than their CMC value. When the concentration was lower than the CMC value of the cationic surfactants, q t for CTAB and OTAB were 123.2 and 138.7 mg/g, respectively. The CMC value of CTAB was lower than that of OTAB under identical conditions, suggesting that the adsorption of cationic surfactants is related to their CMC. These results are beneficial for the removal of cationic surfactants by adsorption methods.
研究领域:
环境科学
·
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Frontiers in Chemistry
·
2019
·
IF 3.782
Wang Yudong,Pan Haobo,Chen Xiaofeng
In this work, hollow mesoporous bioglass (HMBG) nanoparticles were prepared in a hexadecyl trimethyl ammonium bromide (CTAB)-cyclonexane-ethanol-water (O/W) emulsion system. The HMBG nanoparticles possessed higher drug storage ability and stable drug release behavior which resulted from HMBG's unique mesoporous structure. The mesoporous structure could be modulated by adjusting the concentration of CTAB. The specific surface area and drug loading efficiency was as high as 749.619 m2g−1 and 55.1%. Besides, in vivo experiments demonstrated that the HMBG nanoparticles could promote the bone tissue regeneration and the drug-loading HMBG nanoparticles possessed better repair capability. The unique structure and properties might make the HMBG nanoparticles good candidates as drug carriers and repair materials for bone tissue regeneration.
研究领域:
材料科学
·
生物医学工程
·
药学
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Yuhao Cai,Bing Tang,Liying Bin,Shaosong Huang,Ping Li,Fenglian Fu
This work prepared a novel adsorbent with multi-layer structure and verified its adsorption mechanism for various ionic dyes. By the methods of cross-linking and surface modification, a multi-layer composite (CTAB-Chitosan@Al 2 O 3 ) was successfully synthesized, which showed an excellent adsorptive performance for various anionic dyes. The results indicated that the outer layer and the core adsorbed Congo Red (CO) and Reactive Blue (RB) well, and the middle layer played a leading role on adsorbing Methyl Orange (MO). The maximum adsorption capacity of CTAB-Chitosan@Al 2 O 3 for MO, CO and RB was 327.87, 1250.00 and 1017.90 mg/g, respectively. The characteristics of the as-synthesized adsorbent were revealed by multi-method, including Fourier Transform Infra-Red spectra, X-ray powder diffraction, X-ray photoelectron spectra, Scanning Electron Microscope, Brunauer-Emmet-Teller surface area and Thermogravimetric analyzer, which verified that the comprehensive effects of electrostatic interaction and hydrogen bond was the main mechanism for CTAB-Chitosan@Al 2 O 3 to adsorb ionic dyes. The pH value obviously influenced the surface charge of CTAB-Chitosan@Al 2 O 3 , and it was a convenient approach to regulate and control the adsorption process by only adjusting the pH value.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 54
·期 7
·5359-5365
·
IF 2.993
Guo Bing,Lin Xiuzhen
A novel hierarchically mesoporous–macroporous tin organophosphonate with intra-framework organic groups is successfully fabricated through a facile hydrothermal route with SnCl 4 ·5H 2 O as tin source and diethylene triamine pentakis(methylphosphonic acid) as organophosphorus source in the presence of cetyltrimethylammonium bromide (CTAB) as the templating agent. The as-prepared hybrid had macroporous structures with the pore size in the range of 0.6–2.1 μm and a specific surface area of 170 m 2 /g. Besides, the pore walls had particle-aggregated mesoporous substructures, consisting of amorphous tin organophosphonates, as characterized by SEM, TEM and N 2 adsorption analysis and wide- and low-angle X-ray diffraction. FT-IR and NMR results indicated the integrity of the organophosphonate groups into the hybrid solid. It was found that the surfactant CTAB played an important role in obtaining macropores, and a possible formation route was proposed.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2025
·
IF 4.7
Jingce Bi,Qingfeng Zhan,Yujing Chen,Zhiqiang Liang,Ningning Liu,Xia Zhang,Zhuopeng Wang,Yide Han
At present, the construction of hierarchically porous ZSM-5 molecular sieves using only cetyltrimethylammonium bromide (CTAB) as the template represents a major challenge in the field of molecular sieve synthesis. In this work, hierarchically porous ZSM-5 zeolite was synthesized via a straightforward conventional static hydrothermal method, employing CTAB as the sole template agent derived from CTAB-encapsulated silica sphere precursors. By controlling the dissolution rate of silica spheres, the release rate of CTAB is regulated, enabling the synthesis of pure-phase hierarchical porous ZSM-5 zeolite. The influences of alkalinity, aging time, Si/Al ratio, CTAB content and addition method, and crystallization time on the construction of hierarchically porous ZSM-5 molecular sieves were examined. The experimental results indicate that the crystallization process in this system proceeds in the order: MFI → MFI + kenyaite → MFI + quartz. Additionally, by managing the crystallization process, we systematically examined the formation process of impurities and established the optimal conditions for synthesizing pure-phase hierarchically porous ZSM-5 molecular sieves in this system. Moreover, the as-prepared hierarchically porous ZSM-5 molecular sieves demonstrated enhanced selectivity towards light olefins in the MTP reaction.
研究领域:
材料科学
·
化学合成
·
催化化学
·
纳米技术
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2015
·Vol. 8
·期 1
·440-450
·
IF 7.394
Yuxin Wu,Mingquan Xu,Xi Chen,Shuanglei Yang,Hanshuo Wu,Jun Pan,Xiang Xiong
A novel nanostructure of perpendicular ultrathin MoSe2 nanosheets directly grown on graphene was produced by a facile hydrothermal method in the presence of CTAB. The vertically-oriented and ultrathin MoSe2 nanosheets distribute uniformly on the surface of graphene, and the nanosheets are typically 2–3 layers, which is confirmed by TEM and red shift of the A1g Raman peak. In comparison with pure MoSe2 and MoSe2 nanospheres on graphene, vertically oriented MoSe2 nanosheets on graphene show enhanced organic dye adsorption ability and photocatalytic performance in the degradation of MB, RhB and MO under dark conditions and visible light irradiation. The excellent photocatalytic activity may be contributed by the unique perpendicular MoSe2 nanosheets with fully exposed active edges and hybridized with graphene for reduced electron–hole pair recombination.
研究领域:
材料科学
·
环境科学
·
化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF RARE EARTHS
·
2022
·
IF 4.632
Xiaojuan Lu,Mingyang Duan,Jingyu Xiang,Yuning Liang,Songtao Liu
Although solid-state lithium electrolytes have the potential to reduce the safety issues associated with organic liquid electrolytes , disadvantages such as low total conductivity, large interface impedance, and delamination of the interface due to cyclic stress still need to be addressed. The solid-state lithium-ion conductor Li 0.33 La 0.56 TiO 3 (LLTO) was prepared via a hydrothermal route by using CTAB as templates in this paper. Perovskite LLTO with micro-porous channels was obtained and the total conductivity is comparable to the non-porous LLTO. Porous LLTO pellets are infiltrated with the non-porous LLTO precursor solution, and the total conductivities of the infiltrated porous LLTO are all higher than those without infiltration. After infiltration, the porous LLTO calcined at 600 °C achieves the highest total conductivity, 7.88 × 10 −5 S/cm. The fracture toughness of the infiltrated LLTO is higher than that of the non-porous LLTO. The results demonstrate a new way to prepare solid-state lithium-ion conductors with high ionic conductivity and great tolerance to cyclic stress.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）