Journal of Materials Chemistry C
·
2025
·Vol. 13
·期 14
·7264-7275
·
IF 5.1
Jingxuan Zhang,Zetian Yang,Hengwei Lin,Dirk Poelman,Henk Vrielinck,Jiaren Du
Motivated by their variable chromatic transformations and remarkable thermal stability, photochromic materials derived from sodalite (Na8(AlSiO4)6Cl2) have been proposed for various applications such as optical anti-counterfeiting and radiation dosimetry. Nonetheless, the utilization of these optical materials is significantly constrained by the intricate synthesis process and weak photochromic contrast. Herein, a one-step microwave-assisted solid-state method is adopted to prepare sodalites and optimize their photochromic performance. The results show that the sample can be synthesized through only 16-minute microwave radiation, greatly simplifying the preparation process. Notably, the maximum photochromic contrast of sodalites is enhanced from 13.8% to 26.9% through the partial substitution of Cl with S ions. In addition, optical spectroscopy and electron spin resonance experiments are performed to investigate the influence of traps on the photochromic behavior. It was found that the photochromic behavior in sodalites is mainly determined by traps with an energy depth around 0.788 eV. The activation energy of these traps is determined by the host and the corresponding preparation approach. Finally, sodalite-based compounds are fabricated into fibers for clothing decoration demonstration. This work not only provides a facile method for the synthesis of sodalite-based photochromic materials but also gives insight into the trap-involved photochromic mechanism.
研究领域:
材料科学
·
无机化学
·
功能材料
·
光化学
·
纳米科技
·
固体物理
·
纺织材料
✓ 已验证
产品关联
DOI
高影响因子
Silicon
·
2025
·
IF 3.3
Zhang Hankun,Wang Na,Li Teng,Zeng Lingtao,Kang Qian,Tao Longfeng,Xu Feng,Yang Chuncheng,Li Hongchao,Liu Changjiang
To broaden the disposal strategy of silicate wastes, a hydrothermal method inspired by previous work on the extraction of potassium from K-feldspar was proposed in this work to handle the representative silicates of feldspars, pyrophyllite, coal gangue, coal fly ash, and as a result, two typical small zeolites of analcime and hydroxycancrinite were obtained. Systematic ion exchange experiments under the existences of Li + , Na + , K + , Ca 2+ , Mg 2+ in different conditions were conducted to evaluate their cation selectivity and capability. Results showed that Li + was the only cation having positive feedback on the zeolite structure, in mixed-ion system solutions, it achieved efficient lithium silicate immobilization with a Li 2 O content of 4.50 wt. %, while in a single-ion system (LiCl solution), the Li 2 O content reached 9.40 wt. %. The immobilization capacities in both systems surpassed those of high-grade granitic pegmatite-type lithium ores (1.5–4 wt. %). The structure of hydroxycancrinite is always the same before and after ion exchange, and all of them are shelf silicate structures. The Spectral analysis identified the formation of Li-zeolite from hydroxycancrinite with the successful trapping of Li + inside. The overall handling process provided a new way for the process of universal silicate wastes with further combination of lithium extraction from mixed cation solution system.
研究领域:
材料科学
·
化学工程
·
环境科学
·
无机化学
·
资源回收
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Jian Wu,Xingyue Zhi,Andac Armutlulu,Ruzhen Xie
Piezo-photocatalysis that can convert mechanical and solar energy for sustainable wastewater treatment has attracted growing interest. However, its practical piezoelectric response efficiency is often constrained by the rapid recombination of photogenerated electron–hole pairs and catalyst deterioration during the oxidation reaction. Herein, we first propose using sodalite (SOD) to confine heterojunctions to improve their piezoelectric effect and stability. Among a series of sodalite-framed BaTiO3/ZnO configurations synthesized, BaTiO3@sodalite/ZnO (BTO@SOD/ZnO) obtained by in situ growth of sodalite layer on BaTiO3, followed by controlled ZnO deposition, exhibits the most superior piezo-photocatalytic activity and structural stability. Experiments and characterizations revealed that the sodalite confinement significantly enhances the radial piezoelectric response of BTO@SOD/ZnO and promotes efficient electron transfer, enabling efficient and sustainable water purification with minimal metal leaching. The improved piezoelectric potential of BTO@SOD/ZnO was further validated through comprehensive experimental analyses and simulation studies. This work introduces a novel outer-layer confinement strategy to construct well-confined heterojunction interfaces, offering a safe and efficient platform for the development of next-generation piezo-photocatalysts for safer water purification.
研究领域:
环境科学
·
材料科学
·
纳米技术
·
催化
·
废水处理
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Dazhong Yang,Zheting Chu,Renji Zheng,Wenfei Wei,Xuezhen Feng,Juan Zhang,Chunyan Li,Zuotai Zhang,Hong Chen
Due to the large output and potential ecological risks, disposal of engineering abandoned soils (EAS) has become an enormous challenge for human society. Herein, EAS has been transformed into microporous analcime (ANA) zeolite material through a fast, energy-efficient, and straightforward conversion process. The as-synthesized ANA has been employed to remediate Cu-polluted soil, which shows a significant ecological restoration function in a vegetable pot experiment. With 25 g/kg ANA into Cu contaminated soil (total Cu concentration: 200 ppm), the Cu accumulation concentration in vegetables has been decreased from 5.60 down to 1.80 mg/kg (approaching the background Cu level 1.70 mg/kg in vegetables). Detailed mechanism study combining with DFT calculations reveals that the Cu 2+ in soil has been captured both inside the ANA pore channels and on the surface via ion-exchange and surface adsorption mechanism. The whole process, including ANA synthesis and Cu polluted soil remediation , has been optimized to show a valuable conceptual model to recycle EAS resource and in-situ remediate Cu polluted soil.
研究领域:
环境科学
·
材料科学
·
化学
·
土壤学
·
可持续发展
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）