MICROCHIMICA ACTA
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2025
·Vol. 192
·期 10
·1-14
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IF 5.3
Bi Leyao,Fu Boyan,Lin Jiahui,Wen Junsheng,Fu Jiaxing,Tian Wenyue,Su Ningning,Zou Binglin,Wang Chunjie,Wang Yue
Soda biscuit-like Ag-ZnO@ZIF-8 heterostructures were successfully synthesized using a secondary hydrothermal method for the first time, demonstrating exceptional ethylene glycol sensing performance. The sample (2-Methylimidazol (MeIm) concentration of 0.04 g) exhibits a remarkable response value of 1325.50 to 100 ppm ethylene glycol at 240 °C, along with a rapid response time of merely 7 s. Additionally, it displays outstanding gas selectivity (k = 28.63–696.90), great reproducibility and long-term stability. Further experiments indicate that the enhancement of the composite material’s gas sensing performance can be primarily attributed to the interfacial electron transfer effect, the abundance of oxygen vacancies, and the synergistic interactions within the heterostructures. Overall, this study lays a solid theoretical foundation for the practical detection applications of ethylene glycol and provides new insights into the research on gas sensors based on ZnO-organic frameworks. Graphical
研究领域:
材料科学
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纳米技术
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化学传感器
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无机化学
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2020
·
IF 7.632
Xiaojuan Zhang,Edouard Asselin,Zhibao Li
The precipitation of CaCO3 and its kinetics for the CaCl2–CO2–Mg(OH)2–H2O system were systematically studied to develop a novel process for eliminating solid and liquid waste from the Solvay soda process. The effects of operating conditions including temperature, CaCl2 concentration, flow rate of CO2, and stirring speed on the reaction kinetics were experimentally determined. The results revealed that low temperature, high CO2 flow rate, and fast stirring speed can accelerate the reaction rate, and the mass transfer of CO2 is the controlling step. An MSMPR crystallizer was used to obtain the experimental crystal size distribution (CSD). A simplified population balance equation (PBE) was used to correlate the parameters on the basis of supersaturation. The soda solid and liquid wastes discharged from the Solvay industry were used as raw material to test the new process and validate the methodology. The precipitated CaCO3 consists of calcite or aragonite with high purity and uniform CSD. A double-effect evaporative-cooling crystallization process to recover MgCl2·6H2O and NaCl was simulated with help of Aspen plus and the electrolyte-NRTL (ELENRTL) model, suggesting economic benefits.
研究领域:
化学工程
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环境科学
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DOI
高影响因子
CELLULOSE
·
2023
·Vol. 30
·期 9
·5607-5622
·
IF 5.7
Zhang Kecan,Li Jing,He Liang,Zhou Huajing,Guan Qingqing,Chen Keli,Shan Shaoyun,Hu Tianding
Cellulose nano/microfibres (CNFs/CMFs) with high aspect ratio were essential for mechanical strength and flexibility properties. In this study, the tobacco stem was employed as raw material for delignification with soda-oxygen (SO). By comparison with the caustic soda-anthraquinone (SAQ) treatment, based on process performance including pulp yield, residual lignin and fibre characteristics, the two-stage delignification process with total alkali 15% was selected for further preparing CNFs/CMFs with ultrasonication. Results showed that the aspect ratio of highly homogeneous CNFs/CMFs could achieve as ultra-high as 17,645. FTIR and XRD results showed that hemicellulose and lignin in CNFs/CMFs were widely removed, and the crystallinity was about 62%. TGA results exhibited that the degradation temperature was significantly enhanced to 330.2 °C. Finally, the CNF/CMF-based film was prepared and its folding endurance, tensile breaking strength, and burst strength could achieve 136, 61.28 N m/g, 278 kPa m 2 /g. The production of CNFs/CMFs from underutilized tobacco stems provided the potential to add value for industrial waste.
研究领域:
材料科学
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生物质利用
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DOI
高影响因子
CHEMOSPHERE
·
2025
·
IF 8.1
Zixuan Sheng,Khomidov Fakhriddin Gafurovih,Kadyrova Zulayho Raimovna,Bingying Gao,Linqiang Mao
The widespread use of NiO/Al 2 O 3 catalysts in the petrochemical industry generates hazardous spent materials due to the formation of refractory nickel-aluminum spinel (NiAl 2 O 4 ), which complicates metal recovery and exacerbates resource inefficiency. Traditional direct acid and alkali leaching cannot recover Ni and Al due to excellent stable structure of NiAl 2 O 4 . Here, we propose a simple soda roasting-water leaching strategy to disrupt the spinel lattice and recover Ni and Al with high efficiency. By roasting spent catalysts with Na 2 CO 3 at 1000 °C, Na + ions substituted Al 3+ in the octahedral sites, which destroyed the spinel framework and converted Al 2 O 3 /NiAl 2 O 4 into water-soluble NaAlO 2 . Over 98.31 % of Al was selectively leached at 90 °C, followed by pH-controlled precipitation and calcination at 600 °C to regenerate γ-Al 2 O 3 with the purity of 98.21 %. Residual NiO was recovered via 2 M H 2 SO 4 leaching, with Fe impurities removed through pH-selective precipitation. The kinetic analysis revealed a chemically controlled leaching mechanism ( E a = 47.61 kJ/mol). Final Ni(OH) 2 through calcination at 400 °C yielded reusable NiO. This approach achieved >98 % metal recovery, minimized waste, and aligned with circular economy principles by transforming hazardous spent catalysts into high-purity industrial feedstocks.
研究领域:
冶金学
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环境工程
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化学工程
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材料科学
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产业生态学
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废弃物管理
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DOI
PubMed
高影响因子
Journal of Cleaner Production
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2026
·
IF 10.7
Wenzheng Mao,Lixin Zhang,Su Gan,Yiwei Zhou,Jingyi Li,Junya Cao
With the growing emphasis on green chemistry and sustainable development, the resource utilization of waste salt has garnered significant attention. The production of soda ash from waste sodium sulfate presents a viable and sustainable pathway for the green transformation of the chemical industry. Current studies on this production method primarily focuses on single-factor effects on product purity, often overlooking the critical synergistic or antagonistic interactions between key process parameters. To address the aforementioned issues, this study systematically investigated the key factors and their interactions using response surface methodology. The process began with a pretreatment stage that effectively removed total organic carbon and color, while also adsorbing organic impurities such as heterocycles, anilines, ketones, phenols, and long-chain alkanes. For the soda ash synthesis via the double decomposition reaction of the pretreated waste sodium sulfate, single-factor experiments and response surface methodology optimization established the following optimal conditions: a reaction time of 1.96 h, a reaction temperature of 39 °C, and a material mass ratio of 1.284 (m (ammonium bicarbonate): m (sodium sulfate)). Under these conditions, the maximum soda ash purity of 99.35% was achieved. Furthermore, a binary regression model was developed for the process, with predictions showing excellent agreement with experimental data, confirming its reliability and practical utility. Additionally, the kinetics of the double decomposition reaction were determined by fitting a pseudo-second-order kinetic model in combination with the Arrhenius equation, and the resulting expression is as follows. 1 / t ln β 0 − X β 0 1 − X − β X / t = exp − 69475 / R T + 4.3637 × 10 − 16 . Through this waste-salt valorization pathway, not only can the accumulation of industrial waste sodium sulfate and associated environmental pollution risks be effectively reduced, the production cost per ton of sodium carbonate can be reduced by approximately 600 RMB, yielding significant sustainable economic benefits and providing strong support for advancing a green and low-carbon economy.
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高影响因子
BIORESOURCE TECHNOLOGY
·
2025
·
IF 9
Yu Zhang,Yajing Liu,Yelei Li,Hu Cheng,Changyin Zhu,Yu Shen,Sicheng Shao,Jianming Xue,Dongmei Zhou,Fuliang Cao
The low-cost transformation of agricultural biowaste into high-value biochar materials presents substantial technological and economic challenges. In this study, we report for the first time that soda residue can effectively substitute for chemical activation agents to produce micro/mesoporous biochars (MMBs) with a well-developed specific surface area (473.73 m 2 g −1 ) and pore volume (0.55 cm 3 g −1 ). These MMBs exhibit exceptional sorption capacity for the antibiotic sulfamethoxazole in aqueous solutions, reaching a maximum sorption capacity of 92.97 mg g −1 . The sorption mechanism is governed by multiple interactions, including pore filling, hydrogen bonding, partitioning, electrostatic interactions, and π-π stacking. MMBs demonstrate superior stability, excellent reusability, cost-effectiveness, environmental compatibility, and strong anti-interference capability, rendering them highly suitable for practical applications. This study opens new avenues for the sustainable recycling of soda residue and biowaste and the fabrication of high-performance porous biochars while also providing an efficient and eco-friendly sorbent for environmental remediation.
研究领域:
环境科学
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化学工程
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材料科学
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水处理
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可持续技术
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DOI
PubMed
高影响因子
RENAL FAILURE
·
2025
·
IF 3
Shuai Liu,Yuchen Gao,Jun Luo,Yanhua Chen,Heng Cao,Zhuifeng Guo,Hongmin Zhou,Zhongwen Hong,Bowen Chen,Xiao Xu,Jingcheng Zhang,Nengliang Duan,Xiangcheng Zhan,Xudong Yao,Tiancheng Xie,Yunze Dong,Yunfei Xu
Background Urolithiasis is one of the most common urological diseases, and its incidence has increased globally in recent years. Multiple potential mechanisms are involved in urolithiasis, including renal oxidative stress, inflammatory response, fibrosis, pyroptosis, and gut microbiota disturbance. Sodium bicarbonate (NaHCO3) is commonly used clinically to alkalize urine and slow the progression of chronic kidney disease, including urolithiasis. However, the specific mechanism of NaHCO3 in the treatment of urolithiasis is unclear.Methods In this study, we constructed a mice urolithiasis model via intraperitoneal injection of glyoxylate (50 mg/kg) for one week in C57BL/6 mice. Meanwhile, 5% NaHCO3 was added to drinking water in the treatment group. Biochemical detection, immunohistochemical staining, RT-qPCR, and Western blotting were used to assess kidney function and levels of inflammation and pyroptosis. The alteration of gut microbiota in mice treated with NaHCO3 was measured using 16S rDNA sequencing.Results The results demonstrated that NaHCO3 effectively reduced the deposition of CaOx crystal, as well as restored kidney function in urolithiasis-induced kidney injury mice. Moreover, NaHCO3 alleviated oxidative stress and inflammatory response and ameliorated pyroptosis by modulating the NLRP3 inflammasome pathway in kidney. Additionally, it enhanced the intestinal barrier function by up-regulating the expression of tight junction proteins (ZO-1, occludin, and claudin 5), remodeling the gut microbiota, and reducing intestinal inflammation.Conclusion In summary, NaHCO3 exerted a protective effect via the gut-kidney axis in the urolithiasis mice model, suggesting its potential use as a dietary supplementation to be added to daily drinking water for the management of urolithiasis.
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高影响因子
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